Hi all,
first post here on xda. not sure if it was asked - is it possible to flash the frequency bands from c6602 on a c6603? or some type of software hack that will allow the c6603 to use the c6602 bands?
thanx
diopskill said:
Hi all,
first post here on xda. not sure if it was asked - is it possible to flash the frequency bands from c6602 on a c6603? or some type of software hack that will allow the c6603 to use the c6602 bands?
thanx
Click to expand...
Click to collapse
Why would you want to do that for what reason ?
Sent from my C6603 using Tapatalk 2
I'm here in the states. Figured it may be easier to flash then to sell this model and buy a c6602. Was thinking about changing to T-Mobile that's all.
Sent from my C6603 using xda app-developers app
Flashing bands doesn't give the phone frequency bands. It's a hardware thing, flashing bands from 02 to 03 doesn't do much as 03 bands are fixed.
You may bring up how come 03 can enable lte by flashing c6506 bands. Well the answer is that 03 has those bands to begin with, it just grant access for it to connect to certain frequencies.
In conclusion, it's a hardware chip, flashing bands doesn't give the phone frequency bands.
Sent from my C6603 using xda premium
why dont you post this in the right section?
just flash it and see...its not gonna crash your phone if u know what your doing with flashtool
Sorry will post in correct section next time. Thank you. Still learning Sony and flashtool. Coming from nexus devices. one last? , o can flash the 6506 in the 03 and activate US let bands?
Sent from my C6603 using xda app-developers app
diopskill said:
Sorry will post in correct section next time. Thank you. Still learning Sony and flashtool. Coming from nexus devices. one last? , o can flash the 6506 in the 03 and activate US let bands?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
i do not think the states have the correct bands to match it. i think someone tried it already with t-mo.
works for canadians..
diopskill said:
Sorry will post in correct section next time. Thank you. Still learning Sony and flashtool. Coming from nexus devices. one last? , o can flash the 6506 in the 03 and activate US let bands?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
actually it may work for your device, 6602, i try it yesterday but dint work, I'm not complaining with 15mbps down and 3 mbps up...the download is more important, I can stream music, watch youtube 1080p fine.
LitoNi said:
i do not think the states have the correct bands to match it. i think someone tried it already with t-mo.
works for canadians..
Click to expand...
Click to collapse
So the c6603 and c6602 and C6506 do not have the same bands in it internally/hardware wise? My understanding is that they do. I am on tmobile in the states with the c6603 and I am checking on here everyday looking for a us tmobile c6603 thread but all i see is the canadians working miracles across the border. My question would be if we could flash the c6506 in the states on c6603 would that allow us any lte? or should I just wait till the end of the yr when they finish hspa+?
iamswissbanks said:
So the c6603 and c6602 and C6506 do not have the same bands in it internally/hardware wise? My understanding is that they do. I am on tmobile in the states with the c6603 and I am checking on here everyday looking for a us tmobile c6603 thread but all i see is the canadians working miracles across the border. My question would be if we could flash the c6506 in the states on c6603 would that allow us any lte? or should I just wait till the end of the yr when they finish hspa+?
Click to expand...
Click to collapse
C6506: LTE 700 / 850 / 1700 / 1900 / 2100
C6603: LTE 800 / 850 / 900 / 1800 / 2100 / 2600
C6602: Doesnt have LTE bands. It has the same chip as C6603 but its deactivated or whatever. I dont think flashing C6506 baseband will work.
Flashing 6506 baseband on 6603 in the states, I dont know will it work in the states. LTE frequencies/towers locations are different for every country and carrier. LTE isnt out at all locations, just cause one band is supported doesnt mean the other ones are supported.
Only way to find out if it works is to flash it and test it out.
It works for canadians cause most LTE used by carriers are 2100 and 2600.
LitoNi said:
C6506: LTE 700 / 850 / 1700 / 1900 / 2100
C6603: LTE 800 / 850 / 900 / 1800 / 2100 / 2600
C6602: Doesnt have LTE bands. It has the same chip as C6603 but its deactivated or whatever. I dont think flashing C6506 baseband will work.
Flashing 6506 baseband on 6603 in the states, I dont know will it work in the states. LTE frequencies/towers locations are different for every country and carrier. LTE isnt out at all locations, just cause one band is supported doesnt mean the other ones are supported.
Only way to find out if it works is to flash it and test it out.
It works for canadians cause most LTE used by carriers are 2100 and 2600.
Click to expand...
Click to collapse
If you flash a 6506 baseband to a 6603, will you gain 1700 and 2100 for HSPA+? Or is there a hardware limitation? Having support for HSPA+ and (possibly) LTE for Tmobile & AT&T in US is very appealing.
6602 has HSPA+ support but lacks LTE ability since it doesn't have the bands. Must be a hardware limitation.
6603 has LTE support after flashing the 6506 baseband for (possible) LTE US support but lacks 1700 and 1900 for HSPA+
dsmero said:
If you flash a 6506 baseband to a 6603, will you gain 1700 and 2100 for HSPA+? Or is there a hardware limitation? Having support for HSPA+ and (possibly) LTE for Tmobile & AT&T in US is very appealing.
Click to expand...
Click to collapse
..
LitoNi said:
C6506: LTE 700 / 850 / 1700 / 1900 / 2100
C6603: LTE 800 / 850 / 900 / 1800 / 2100 / 2600
C6602: Doesnt have LTE bands. It has the same chip as C6603 but its deactivated or whatever. I dont think flashing C6506 baseband will work.
Flashing 6506 baseband on 6603 in the states, I dont know will it work in the states. LTE frequencies/towers locations are different for every country and carrier. LTE isnt out at all locations, just cause one band is supported doesnt mean the other ones are supported.
Only way to find out if it works is to flash it and test it out.
It works for canadians cause most LTE used by carriers are 2100 and 2600.
Click to expand...
Click to collapse
XperienceD said:
..
Click to expand...
Click to collapse
I am asking about HSPA+ which is not mentioned. Please do not replied to my threads. Contacting mod.
dsmero said:
I am asking about HSPA+ which is not mentioned. Please do not replied to my threads. Contacting mod.
Click to expand...
Click to collapse
iamswissbanks said:
So the c6603 and c6602 and C6506 do not have the same bands in it internally/hardware wise? My understanding is that they do. I am on tmobile in the states with the c6603 and I am checking on here everyday looking for a us tmobile c6603 thread but all i see is the canadians working miracles across the border. My question would be if we could flash the c6506 in the states on c6603 would that allow us any lte? or should I just wait till the end of the yr when they finish hspa+?
Click to expand...
Click to collapse
By chance is there a secret code accessible by the dial pad to access the frequency or radio bands to activate or switch between bands?
http://www.xda-developers.com/andro...tmctr=(not provided)&__utmv=-&__utmk=63603752
It's been figured out, I speculated it was possible, and it is!
Preamble
Hi everyone. As we know, the C6603 (all country versions) can be swapped with the radios from the ZL. This allows you to get LTE on Rogers and Fido in Canada, and I assume would work for other carriers as well in other parts of the world. (this is due either to unlocking frequencies, or unlocking channels on those frequencies.)
The radio HARDWARE is the same. *(?!? is it?) From what I understand the baseband chip in ALL the devices is a:
Qualcomm MDM9215M
which fully supports all the bands we can possibly use. Meaning, this device CAN use UMTS 4 1700/2100 for T-Mobile and Wind and Telus etc etc.
The secret is the amplifier chips. If the c6603 has the amplifier chips physically that the c6602 does we should be able to do the same trick that was done on the nexus 4. A modification of the build.prop may allow for AWS networks to work on our c6603. We can only hope. Partial support to at least use the AWS bands should be possible for the 6603. You would have to do the same thing that was done for the google nexus 4. Essentially,
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
And then flash. Obviously requires a rom cook and root. If any intrepid developers wants to give this a shot, I suggest using the 6606 baseband, as it seems to be both a 6602 and 6603. The 6616 is essentially the same as the T-Mobile phone but with Canadian channels.
Why I care
When the Z first came out, I knew I needed to have it. By a terrific stroke of luck a local had bought an unlocked international Belgum phone off ebay and decided he wanted the S4 instead. He was selling it for hundreds below the MFG price on Kijiji. I immediately bought it. I love the phone, but I can only get 3g, as I am with Telus, and the phone "doesn't support" officially, AWS on Telus. Works with HSPA+ for whatever reason though, on non aws bands.
New knowledge not currently found on the forum
Bell uses AWS on HSPA+ as well as LTE. So does Telus, and Wind. (and Tmobile in the US)
Historically, only the C6602 has the frequencies needed for the other carriers. Bell, in Canada, recently released the C6616.
(LTE compatibility AWS, 700 MHz HSPA/UMTS compatibility 850/1900/1700/1900/2100 MHz GPRS/EDGE compatibility 850/900/1800/1900 MHz)
The question with no answer.
The question is: Can I apply the Baseband file from the Bell C6616 phone to get AWS 1700/2100 hspa/LTE on a C6603?
NEW!
Note: I'm not rooted, nor am I bootloader unlocked. Neat, eh?
Here's what basebands I've tried so far: (c6603 Generic BE, .67, 4.2.2)
c6506 US .434, c6506 US 0.423 - both work perfectly on 4.2.2, no issues. On Telus you can only see Telus, and AT&T, sometimes Rogers.
c6606 - Phone boots, unusable. Random reboots, locks up immeditely after swipe to unlock. Simply flashed baseband back to c6506. - This may be because I was using a 4.1.2 rom. I'm going to re-investigate.
c6616 - Phone boots, slightly usable. Random reboots, even in airplane mode. System.process freezes but eventually unlocks. If you screenlock, you need to reboot. Flashed it back to c6506 (probably due to 4.1.2 again)
ZL c6502 .434 global unbranded - Phone boots. RADIO SHOWS - (!!!) Phone completely usable. OMG I CAN SEE BELL 3g and ROGERS LTE (which is 2600mhz!). Something interesting is going on here, but it's not unlocking any additional bands in reality. The *#*#service#*#* menu shows the same frequencies available - but there's CERTAINLY some modification to the ranges in the bands. For those of you using .434 c6506, switch to c6502 global, you might get better speeds. Woot!
Z c6602 .67 Works. 2g, 3g bands including LTE (on 2600 only I'm sure) available but only on Rogers my home network, Telus, comes up as 3g H+. Cannot see Wind but that might be due to not having a wind Sim at the moment T-Mobile comes up as 2g only. I believe it uses umts 4 for 3g/4g. Essentially the same as c6506.
c6606 0.191 - phone slightly usable. Still has issues with random reboots. Won't go into info or network menu at all. This sounds like mismatched build.prop... this might be possible. Exciting.
MORE MAGIC FOUND. The info menu (*#*#4636#*#*) *#*#info#*#* allows you to swap country mode frequency ranges (including an UNKNOWN range on)!! This greatly impacts the available networks you see when you scan for networks in the phone. With USA selected I do NOT see T-Mobile, for example, when previous I did. Needs more playing.
Here's what I found out:
ahassouna said:
carefull not to brick your phone
Click to expand...
Click to collapse
No worries, I really know what I'm doing here. I'm doing a baseband only flash.
Looking into flashtool, the recognition=C6602,C6603,C6606,C6616,L36h,yuga keys exist. Meaning, flashtool SHOULD see the c6616 in the list, but yes, it doesn't. (?!?!)
I recently grabbed C6506_10.3.1.A.2.67_Generic US, and it works flawlessly as thje previous c6506 basebands on 6603's did. On Fido, it'll give me LTE, obviously, but that's due to 2600 I'm sure. but only gives me 3g (hspa+) with Telus. (non aws).
According to the service menu, The phone only supports the following, even with the 6506 baseband flashed (screenshot is from my phone just now):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
note: LTE_BC1,LTE_BC3,LTE_BC5,LTE_BC7,LTE_BC8,LTE_BC20, which is:
1 Up: 1920 - 1980 Down: 2110 - 2170
3 Up: 1710 - 1785 Down: 1805 - 1880
5 Up: 824 - 849 Down: 869 - 894
7 Up: 2500 - 2570 Down: 2620 - 2690
8 Up: 880 - 915 Down: 925 - 960
20 Up: 832 - 862 Down: 791 - 821
AND YET, the T-Mobile C6506 is supposed to support:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network LTE 700 / 850 / 1700 / 1900 / 2100
Okay. So if that is the case... HOW IN THE HECK are some of you people getting LTE on Bell?
Bell's (and Rogers/Fido, Telus/Koodo) LTE network uses Band 4 Advanced Wireless Services (AWS 1700/2100 MHz: actually 1710–1755/2110–2155) in most coverage areas and Band 7 (2600 MHz) in a few areas.
Wind's and Telus's is 1700/2100 (AWS1) only. THE ONLY WAY I can see this working is because bell/rogers has UMTS 2600 in the GTA. HOWEVER: Why weren't we getting LTE (data only) in the first place on the 6603? It supported LTE 2600 from the start. It's a very good question, and one that could be because of the sub channel bands used for LTE on HSPA+. What's interesting, is that since this phone supports Band 3 and Band 1, you can SEE the LTE/HSPA+ AWS1 network, but it doesn't stay connected (Because you can't split negotiation bands... UNLESS, you could limit one antenna to one and one to the other (not sure it's possible)).
That's seems to be the ONLY reason it works on Bell/Rogers in some cases with the 6506 2600mhz baseband. You're not getting true AWS with that flash (which can be for hspa+ or LTE). Also, the c6616 appears to be a more complete radio that would literally work on every single network in Canada and the USA, being the "ultimate LTE" Xperia Z. The c6602 Internal Storefront phone is the closest original thing, to that I would imagine.
Oh, I forgot to mention, I did try the T-Mobile 6606 baseband on the phone. It causes a soft lock after booting sadly (which does get into the OS, but it locks up and goes black once it's there.), and you have to flash back to either 6506 radio or stock to get it to stay stable.
So no, I do not believe this phone can be "told" to use AWS, regardless of what baseband file you stick in it. Now I'm not so sure. The same thing that was done on the Nexus 4 should work here.
Click to expand...
Click to collapse
I'm not sure it will work at all, apologies if this has been explored. The phone only supports limited UMTS bands. In particular, it would need to say UMTS 4, 9 or 10 in that list, I think.
Originally Posted by kingvortex View Post
The C6602 does not have an LTE capable radio. I'm not sure where you heard that it does, but that information is incorrect. There is no way for you to use LTE on your device, no matter which baseband you may flash.
Sent from my C6603 using Tapatalk
This is correct, sort-of. It turns out that the radio hardware chips themselves are actually the same, but the unit is missing the physical amplifiers for the frequencies you would unlock, making them impossible to use. It's the c6603 radio hardware that has euro LTE. However, the 6602 is supposed to support AWS in some fashions. If you flash the baseband from the bell Z, you may be able to use AWS 4, because it's not just the frequencies that you make available, it's the CHANNEL SET.
In summary a "baseband" is three things
1) radio driver
2) frequency range list
3) channel range list
In theory (logically), the baseband from the "unbranded sony store" phones of each hardware model variant should have all the carrier frequencies of the local area.
So, if you're from Germany, flashing a the Sony "carrier unbranded" baseband from the local model variant should allow you to be all all carriers in that region because it would be in Sony's best interest to sell an unlocked phone in that region in that way.
It gets dicey when you bring a phone from another country as I did, into a country that uses different radio frequencies and channels for the same wireless protocol types. It's complicated and has to do with the radio telecom standards differing in every country. True "World Phones" are really uncommon but we're getting more standardized every year.
I still own my Z but I also have a Z1. The Z1 is a LOT more compatible (every carrier in my area) because it's designed to work with local frequency sets. All I had to do on it was flash the Sony official firmware and baseband, and I could get LTE on every carrier.
lhun said:
Preamble
Hi everyone. As we know, the C6603 (all country versions) can be swapped with the radios from the ZL. This allows you to get LTE on Rogers and Fido in Canada, and I assume would work for other carriers as well in other parts of the world. (this is due either to unlocking frequencies, or unlocking channels on those frequencies.)
The radio HARDWARE is the same.
Why I care
When the Z first came out, I knew I needed to have it. By a terrific stroke of luck a local had bought an unlocked international Belgum phone off ebay and decided he wanted the S4 instead. He was selling it for hundreds below the MFG price on Kijiji. I immediately bought it. I love the phone, but I can only get 3g, as I am with Telus, and the phone "doesn't support" officially, AWS on Telus. Works with HSPA+ for whatever reason though.
New knowledge not currently found on the forum
Bell uses AWS on HSPA+ as well as LTE. So does Telus, and Wind. (and Tmobile in the US)
Historically, only the C6602 has the frequencies needed for the other carriers. Bell, in Canada, recently released the C6616.
(LTE compatibility AWS, 700 MHz HSPA/UMTS compatibility 850/1900/1700/1900/2100 MHz GPRS/EDGE compatibility 850/900/1800/1900 MHz)
The question with no answer.
The question is: Can I apply the Baseband file from the Bell C6616 phone to get AWS 1700/2100 hspa/LTE on a C6603?
Click to expand...
Click to collapse
Only way to find out is to flash the baseband and see what happens, if not you can always flash back to stock C6603 baseband.
wright_ac said:
Only way to find out is to flash the baseband and see what happens, if not you can always flash back to stock C6603 baseband.
Click to expand...
Click to collapse
Fair enough. I didn't know I was wondering into uncharted territory.
Does anyone have a FTF of the bell stock firmware?
lhun said:
Fair enough. I didn't know I was wondering into uncharted territory.
Does anyone have a FTF of the bell stock firmware?
Click to expand...
Click to collapse
so I have the FTF of the C6616. Flashtool completely ignores it as if it doesn't exist. What gives?
lhun said:
so I have the FTF of the C6616. Flashtool completely ignores it as if it doesn't exist. What gives?
Click to expand...
Click to collapse
carefull not to brick your phone
ahassouna said:
carefull not to brick your phone
Click to expand...
Click to collapse
No worries, I really know what I'm doing here. I'm doing a baseband only flash.
Looking into flashtool, the recognition=C6602,C6603,C6606,C6616,L36h,yuga keys exist. Meaning, flashtool SHOULD see the c6616 in the list, but yes, it doesn't. (?!?!)
I recently grabbed C6506_10.3.1.A.2.67_Generic US, and it works flawlessly as thje previous c6506 basebands on 6603's did. On Fido, it'll give me LTE, obviously, but that's due to 2600 I'm sure. but only gives me 3g (hspa+) with Telus. (non aws).
According to the service menu, The phone only supports the following, even with the 6506 baseband flashed (screenshot is from my phone just now):
note: LTE_BC1,LTE_BC3,LTE_BC5,LTE_BC7,LTE_BC8,LTE_BC20, which is:
1 Up: 1920 - 1980 Down: 2110 - 2170
3 Up: 1710 - 1785 Down: 1805 - 1880
5 Up: 824 - 849 Down: 869 - 894
7 Up: 2500 - 2570 Down: 2620 - 2690
8 Up: 880 - 915 Down: 925 - 960
20 Up: 832 - 862 Down: 791 - 821
AND YET, the T-Mobile C6506 is supposed to support:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network LTE 700 / 850 / 1700 / 1900 / 2100
Okay. So if that is the case... HOW IN THE HECK are some of you people getting LTE on Bell?
Bell's (and Rogers/Fido, Telus/Koodo) LTE network uses Band 4 Advanced Wireless Services (AWS 1700/2100 MHz: actually 1710–1755/2110–2155) in most coverage areas and Band 7 (2600 MHz) in a few areas.
Wind's and Telus's is 1700/2100 (AWS1) only. THE ONLY WAY I can see this working is because bell/rogers has UMTS 2600 in the GTA. HOWEVER: Why weren't we getting LTE (data only) in the first place on the 6603? It supported LTE 2600 from the start. It's a very good question, and one that could be because of the sub channel bands used for LTE on HSPA+. What's interesting, is that since this phone supports Band 3 and Band 1, you can SEE the LTE/HSPA+ AWS1 network, but it doesn't stay connected (Because you can't split negotiation bands... UNLESS, you could limit one antenna to one and one to the other (not sure it's possible)).
That's seems to be the ONLY reason it works on Bell/Rogers in some cases with the 6506 2600mhz baseband. You're not getting true AWS with that flash (which can be for hspa+ or LTE). Also, the c6616 appears to be a more complete radio that would literally work on every single network in Canada and the USA, being the "ultimate LTE" Xperia Z. The c6602 Internal Storefront phone is the closest original thing, to that I would imagine.
Oh, I forgot to mention, I did try the T-Mobile 6606 baseband on the phone. It causes a soft lock after booting sadly (which does get into the OS, but it locks up and goes black once it's there.), and you have to flash back to either 6506 radio or stock to get it to stay stable.
So no, I do not believe this phone can be "told" to use AWS, regardless of what baseband file you stick in it.
Unless of course, someone can provide a baseband that "unlocks" UMTS 4, 9 or 10... And, that the radio is physically capable of doing it.
lhun said:
Preamble
Hi everyone. As we know, the C6603 (all country versions) can be swapped with the radios from the ZL. This allows you to get LTE on Rogers and Fido in Canada, and I assume would work for other carriers as well in other parts of the world. (this is due either to unlocking frequencies, or unlocking channels on those frequencies.)
The radio HARDWARE is the same.
Why I care
When the Z first came out, I knew I needed to have it. By a terrific stroke of luck a local had bought an unlocked international Belgum phone off ebay and decided he wanted the S4 instead. He was selling it for hundreds below the MFG price on Kijiji. I immediately bought it. I love the phone, but I can only get 3g, as I am with Telus, and the phone "doesn't support" officially, AWS on Telus. Works with HSPA+ for whatever reason though.
New knowledge not currently found on the forum
Bell uses AWS on HSPA+ as well as LTE. So does Telus, and Wind. (and Tmobile in the US)
Historically, only the C6602 has the frequencies needed for the other carriers. Bell, in Canada, recently released the C6616.
(LTE compatibility AWS, 700 MHz HSPA/UMTS compatibility 850/1900/1700/1900/2100 MHz GPRS/EDGE compatibility 850/900/1800/1900 MHz)
The question with no answer.
The question is: Can I apply the Baseband file from the Bell C6616 phone to get AWS 1700/2100 hspa/LTE on a C6603?
Has anyone tried the 6602 baseband only on the 6603? My goal is to get AWS frequencies. I don't care about LTE.
I'm not sure it will work at all, apologies if this has been explored. The phone only supports limited UMTS bands. In particular, it would need to say UMTS 4, 9 or 10 in that list, I think.
Click to expand...
Click to collapse
As i see from different firmwares, some overlay applications might deny to use some of capability of phone.
In over my firmware testing experience, some off firmwares prevent to use single 3g, and some of them prevent to use mixed network.
You must sure you have totally generic firmware. Try to delete all overlay apks, those might restrict you to configure network coverage.
PS:
I'am going to flash C6606 fw 10.3.1.E.0.191 to my 6603 afew later.
eryen said:
As i see from different firmwares, some overlay applications might deny to use some of capability of phone.
In over my firmware testing experience, some off firmwares prevent to use single 3g, and some of them prevent to use mixed network.
You must sure you have totally generic firmware. Try to delete all overlay apks, those might restrict you to configure network coverage.
PS:
I'am going to flash C6606 fw 10.3.1.E.0.191 to my 6603 afew later.
Click to expand...
Click to collapse
Hi Eryen, thanks for replying!
If you read through my post, I tried that and it did not work. Gets to the OS and locks up. However, we're just swapping signed basebands. We need to figure out which radio hardware they're using to see what it's capable of, and perhaps, we can start making custom unlocked drivers.
eryen said:
As i see from different firmwares, some overlay applications might deny to use some of capability of phone.
In over my firmware testing experience, some off firmwares prevent to use single 3g, and some of them prevent to use mixed network.
You must sure you have totally generic firmware. Try to delete all overlay apks, those might restrict you to configure network coverage.
PS:
I'am going to flash C6606 fw 10.3.1.E.0.191 to my 6603 afew later.
Click to expand...
Click to collapse
Hey, that's a pretty amazing thought. I might try that, would of course require root, I would imagine.
NEW!
Note: I'm not rooted, nor am I bootloader unlocked. Neat, eh?
Here's what basebands I've tried so far: (c6603 Generic BE, .67, 4.2.2)
c6506 US .434, c6506 US .67 - both work perfectly on 4.2.2, no issues. On Telus you can only see Telus, and AT&T, sometimes Rogers.
c6606 - Phone boots, unusable. Random reboots, locks up immeditely after swipe to unlock. Simply flashed baseband back to c6506.
c6616 - Phone boots, slightly usable. Random reboots, even in airplane mode. System.process freezes but eventually unlocks. If you screenlock, you need to reboot. Flashed it back to c6506
ZL c6502 .434 global unbranded - Phone boots. RADIO SHOWS - (!!!) Phone completely usable. OMG I CAN SEE BELL 3g and ROGERS LTE (which is 2600mhz!). Something interesting is going on here, but it's not unlocking any additional bands in reality. The *#*#service#*#* menu shows the same frequencies available - but there's CERTAINLY some modification to the ranges in the bands. For those of you using .434 c6506, switch to c6502 global, you might get better speeds. Woot!
So I'm starting to think the 6603 could be hacked to get umts band 4 in the same exact way the nexus 4 was.
If I get more time I'll try this out - I would rather it be possible without root but meh.
To contribute.
I have C6602, flashed C6603 baseband, tried with 4G card in confirmed zone of 4G signal, only catching 3G.
Will try with C6502 baseband when I have again 4G card.
sipe1 said:
To contribute.
I have C6602, flashed C6603 baseband, tried with 4G card in confirmed zone of 4G signal, only catching 3G.
Will try with C6502 baseband when I have again 4G card.
Click to expand...
Click to collapse
Did you try *#*#info#*#* menu and changing regional setting?
lhun said:
Preamble
Hi everyone. As we know, the C6603 (all country versions) can be swapped with the radios from the ZL. This allows you to get LTE on Rogers and Fido in Canada, and I assume would work for other carriers as well in other parts of the world. (this is due either to unlocking frequencies, or unlocking channels on those frequencies.)
The radio HARDWARE is the same. *(?!? is it?) From what I understand the baseband chip in ALL the devices is a:
Qualcomm MDM9215M
which fully supports all the bands we can possibly use. Meaning, this device CAN use UMTS 4 1700/2100 for T-Mobile and Wind and Telus etc etc.
The secret is the amplifier chips. If the c6603 has the amplifier chips physically that the c6602 does we should be able to do the same trick that was done on the nexus 4. A modification of the build.prop may allow for AWS networks to work on our c6603. We can only hope. Partial support to at least use the AWS bands should be possible for the 6603. You would have to do the same thing that was done for the google nexus 4. Essentially,
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
And then flash. Obviously requires a rom cook and root. If any intrepid developers wants to give this a shot, I suggest using the 6606 baseband, as it seems to be both a 6602 and 6603. The 6616 is essentially the same as the T-Mobile phone but with Canadian channels.
Why I care
When the Z first came out, I knew I needed to have it. By a terrific stroke of luck a local had bought an unlocked international Belgum phone off ebay and decided he wanted the S4 instead. He was selling it for hundreds below the MFG price on Kijiji. I immediately bought it. I love the phone, but I can only get 3g, as I am with Telus, and the phone "doesn't support" officially, AWS on Telus. Works with HSPA+ for whatever reason though, on non aws bands.
New knowledge not currently found on the forum
Bell uses AWS on HSPA+ as well as LTE. So does Telus, and Wind. (and Tmobile in the US)
Historically, only the C6602 has the frequencies needed for the other carriers. Bell, in Canada, recently released the C6616.
(LTE compatibility AWS, 700 MHz HSPA/UMTS compatibility 850/1900/1700/1900/2100 MHz GPRS/EDGE compatibility 850/900/1800/1900 MHz)
The question with no answer.
The question is: Can I apply the Baseband file from the Bell C6616 phone to get AWS 1700/2100 hspa/LTE on a C6603?
NEW!
Note: I'm not rooted, nor am I bootloader unlocked. Neat, eh?
Here's what basebands I've tried so far: (c6603 Generic BE, .67, 4.2.2)
c6506 US .434, c6506 US 0.423 - both work perfectly on 4.2.2, no issues. On Telus you can only see Telus, and AT&T, sometimes Rogers.
c6606 - Phone boots, unusable. Random reboots, locks up immeditely after swipe to unlock. Simply flashed baseband back to c6506. - This may be because I was using a 4.1.2 rom. I'm going to re-investigate.
c6616 - Phone boots, slightly usable. Random reboots, even in airplane mode. System.process freezes but eventually unlocks. If you screenlock, you need to reboot. Flashed it back to c6506 (probably due to 4.1.2 again)
ZL c6502 .434 global unbranded - Phone boots. RADIO SHOWS - (!!!) Phone completely usable. OMG I CAN SEE BELL 3g and ROGERS LTE (which is 2600mhz!). Something interesting is going on here, but it's not unlocking any additional bands in reality. The *#*#service#*#* menu shows the same frequencies available - but there's CERTAINLY some modification to the ranges in the bands. For those of you using .434 c6506, switch to c6502 global, you might get better speeds. Woot!
Z c6602 .67 Works. 2g, 3g bands including LTE (on 2600 only I'm sure) available but only on Rogers my home network, Telus, comes up as 3g H+. Cannot see Wind but that might be due to not having a wind Sim at the moment T-Mobile comes up as 2g only. I believe it uses umts 4 for 3g/4g. Essentially the same as c6506.
c6606 0.191 - phone slightly usable. Still has issues with random reboots. Won't go into info or network menu at all. This sounds like mismatched build.prop... this might be possible. Exciting.
MORE MAGIC FOUND. The info menu (*#*#4636#*#*) *#*#info#*#* allows you to swap country mode frequency ranges (including an UNKNOWN range on)!! This greatly impacts the available networks you see when you scan for networks in the phone. With USA selected I do NOT see T-Mobile, for example, when previous I did. Needs more playing.
I'm not sure it will work at all, apologies if this has been explored. The phone only supports limited UMTS bands. In particular, it would need to say UMTS 4, 9 or 10 in that list, I think.
Click to expand...
Click to collapse
I'm deeply grateful with you and your work, i don't know if you are a developer or just a guy who got a Xperia Z and wants to enable some features that's been banned from sony and of course making us the job to reroute this, even harder than nexus 4 disabled LTE feature, i have just 1. question, i own a Xperia Z (C6602) i'm on existenz 6.6 ROM wich is based on official 4.3.
I have understood that XPERIA Z C6603 and C6602 version both bring along the exact same LTE chip BUT sony disabled this chip on C6602 version for an unkwon reason yet, i've read around so much about it, and i concluded, that the chip on C6602 was disabled by some modem modifications,
how can i enable LTE feature?
if i flash C605 modem will work and get LTE?
i am from colombia and my carrier is TIGO (german company) they uses AWS band 4 for LTE speeds
any help from you and yor knowledge, sorry if i bother you with this but i need to make clear this hole in my head once and for all dude
THANKS in advance
Thepho3nix said:
I'm deeply grateful with you and your work, i don't know if you are a developer or just a guy who got a Xperia Z and wants to enable some features that's been banned from sony and of course making us the job to reroute this, even harder than nexus 4 disabled LTE feature, i have just 1. question, i own a Xperia Z (C6602) i'm on existenz 6.6 ROM wich is based on official 4.3.
I have understood that XPERIA Z C6603 and C6602 version both bring along the exact same LTE chip BUT sony disabled this chip on C6602 version for an unkwon reason yet, i've read around so much about it, and i concluded, that the chip on C6602 was disabled by some modem modifications,
how can i enable LTE feature?
if i flash C605 modem will work and get LTE?
i am from colombia and my carrier is TIGO (german company) they uses AWS band 4 for LTE speeds
any help from you and yor knowledge, sorry if i bother you with this but i need to make clear this hole in my head once and for all dude
THANKS in advance
Click to expand...
Click to collapse
The C6602 does not have an LTE capable radio. I'm not sure where you heard that it does, but that information is incorrect. There is no way for you to use LTE on your device, no matter which baseband you may flash.
Sent from my C6603 using Tapatalk
kingvortex said:
The C6602 does not have an LTE capable radio. I'm not sure where you heard that it does, but that information is incorrect. There is no way for you to use LTE on your device, no matter which baseband you may flash.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
This is correct, sort-of. It turns out that the radio hardware chips themselves are actually the same, but the unit is missing the physical amplifiers for the frequencies you would unlock, making them impossible to use. It's the c6603 radio hardware that has euro LTE. However, the 6602 is supposed to support AWS in some fashions. If you flash the baseband from the bell Z, you may be able to use AWS 4, because it's not just the frequencies that you make available, it's the CHANNEL SET.
In summary a "baseband" is three things
1) radio driver
2) frequency range list
3) channel range list
In theory (logically), the baseband from the "unbranded sony store" phones of each hardware model variant should have all the carrier frequencies of the local area.
So, if you're from Germany, flashing a the Sony "carrier unbranded" baseband from the local model variant should allow you to be all all carriers in that region because it would be in Sony's best interest to sell an unlocked phone in that region in that way.
It gets dicey when you bring a phone from another country as I did, into a country that uses different radio frequencies and channels for the same wireless protocol types. It's complicated and has to do with the radio telecom standards differing in every country. True "World Phones" are really uncommon but we're getting more standardized every year.
I still own my Z but I also have a Z1. The Z1 is a LOT more compatible (every carrier in my area) because it's designed to work with local frequency sets. All I had to do on it was flash the Sony official firmware and baseband, and I could get LTE on every carrier.
kingvortex said:
The C6602 does not have an LTE capable radio. I'm not sure where you heard that it does, but that information is incorrect. There is no way for you to use LTE on your device, no matter which baseband you may flash.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
Actually it's not exactly true. There is a custom kernel mode driver that locks this radio from using the other frequency bands. It may be possible to cook a custom driver that enables them, but the amplifiers might not be there, although I suspect they are just like the Nexus 4. The reason they are strongly disabled is because enabling them in a country that uses those channels and frequencies might break their local radio telecommunications laws and it would not allow them to sell the device in the country with the radio being "un neutered". That's one of the reasons why pushing these things through the FCC can take time.
So, am I correct or not? You said I was in post #17 and not in post #18!
If it's kernel related, then surely flashing a C6603 kernel would bypass it (which it doesn't)...? Correct me if I'm wrong, as I'm only an interested amateur.
Sent from my C6603 using Tapatalk
kingvortex said:
So, am I correct or not? You said I was in post #17 and not in post #18!
If it's kernel related, then surely flashing a C6603 kernel would bypass it (which it doesn't)...? Correct me if I'm wrong, as I'm only an interested amateur.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
Truth is we don't know for sure because nobody has done it, we're talking about writing a custom driver which is different.
Qualcomm MDM9215M
which fully supports all the bands we can possibly use. Meaning, this device CAN use UMTS 4 1700/2100 for T-Mobile and Wind and Telus etc etc.
The secret is the amplifier chips. If the c6603 has the amplifier chips physically that the c6602 does we should be able to do the same trick that was done on the nexus 4. A modification of the build.prop may allow for AWS networks to work on our c6603. We can only hope. Partial support to at least use the AWS bands should be possible for the 6603. You would have to do the same thing that was done for the google nexus 4. Essentially,
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
Click to expand...
Click to collapse
I put c6906 firmware on my c6903 and it worked. Question is, How will i know if the extra band is working for at&t.. It still gives me h+ in most areas I dont get it. any insight?
teamHTC said:
I put c6906 firmware on my c6903 and it worked. Question is, How will i know if the extra band is working for at&t.. It still gives me h+ in most areas I dont get it. any insight?
Click to expand...
Click to collapse
The firmware Works but you cant use 6906 LTE 700 band, because is hardware related.
the difference in z1 models are the LTE modem and the 6903 don't have the same as the 6906.
mrled said:
The firmware Works but you cant use 6906 LTE 700 band, because is hardware related.
the difference in z1 models are the LTE modem and the 6903 don't have the same as the 6906.
Click to expand...
Click to collapse
So you saying the C6903 model will not work in Canada?
teamHTC said:
I put c6906 firmware on my c6903 and it worked. Question is, How will i know if the extra band is working for at&t.. It still gives me h+ in most areas I dont get it. any insight?
Click to expand...
Click to collapse
U flash c6906 ftf file via flashtool?
I want to flash c6906 ftf over my c6903 but
I scared Will get brick
@mrled is correct, the LTE support differences between C69xx models is 100% hardware, so flashing other FTFs will not help.
C6903: LTE 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600
C6906: LTE 700 / 850 / 900/ 1700 / 1900 / 2100 / 2600
C6943: LTE 800 / 850 / 900/ 1700 / 1800 / 1900 / 2100 / 2600
ref: http://www.gsmarena.com/sony_xperia_z1-5596.php
C6916: LTE 700 / 1700 / 2100
ref: http://store.sony.com/xperia-z1s-4g-lte-for-t-mobile-zid27-C6916/cat-27-catid-All-Locked-Phones
eclyptos said:
So you saying the C6903 model will not work in Canada?
Click to expand...
Click to collapse
In Canada, a C6903 will have limited LTE on Bell, full LTE on Rogers & Telus, but no LTE on mobilicity/SaskTel/Videotron/Wind. 2G/3G support is identical on all C69xx models.
ref: http://www.gsmnation.com/sony-mobile-xperia-z1-c6903-unlocked.html
paullu said:
U flash c6906 ftf file via flashtool?
I want to flash c6906 ftf over my c6903 but
I scared Will get brick
Click to expand...
Click to collapse
It will only be a soft-brick, completely recoverable via flash mode (unless you do something stupid like run it low on battery or unplug the cable at the wrong time).
xasbo said:
In Canada, a C6903 will have limited LTE on Bell, full LTE on Rogers & Telus, but no LTE on mobilicity/SaskTel/Videotron/Wind. 2G/3G support is identical on all C69xx models.
Click to expand...
Click to collapse
What about T-Mobile?
eclyptos said:
What about T-Mobile?
Click to expand...
Click to collapse
Do they use the same frequencies in Canada as in the US? In the US, they use 700/1700/2100, and I think 1700/2100 (band 4) is their primary (most widely deployed). If that's true for Canada as well, all four phones should work on LTE. Obviously, I have not tested this so I cannot be sure.
Flashing a 6906 to a 6916 for wifi calling feature
Hey Guys!
I bought a Sony Z1 last year (6906) Canada boot loader locked to use on T-mobiles LTE network and everything worked great, only issue was I lost my Wi-Fi calling feature on the new model as it was not directly from T-Mobile and really liked the feature.
I see that T-Mobile released an almost identical version (6916), only I think has more memory and less bands available.
I tried to pull the wifi .apk file off my original android phone to see if I could make it work, and would not install assuming brand specific of permissions related.
so, wanted to pick the forums brain and see if any one out there has done this, take the firmware for a T-mobile branded 6916 model ( I believe current version is 14.2.C.0.159, until new kit kat release comes out if and when of course ) and put it on the 6906 model so the wifi calling feature can work.
Bands look to be there, so hoping this could work unless someone had a reliable work around for the Wi-Fi calling ?
Please excuse my noobness, new to Z1 forum so any and all help greatly appreciated
Thanks for any help in advance!
I thought bands and signal reception were hardware related not software related.
Sent from my C6903 using XDA Premium 4 mobile app
I live in Sacramento, CA and it's supposedly a refarmed city, meaning it uses 1900Mhz spectrum on T-Mobile for 3G. So I bought a C5306 for my wife, however the 3G isn't working, all we get is EDGE. Naturally I thought I'd at least get LTE, since it's advertised as an LTE phone but I'm not getting that either, even though we have LTE in my area. What's the deal? Has anyone else had this issue? In the phone settings I have it setup to receive LTE/GSM/WCDMA in that order but it doesn't seem to help.
The 5306 claims to have the right bands...
HSDPA 850 / 900 / 1900 / 2100
LTE 850 / 1700 / 1900 / 2100
I'm calling lies on either Sony or T-Mobile...
handisnacks said:
I live in Sacramento, CA and it's supposedly a refarmed city, meaning it uses 1900Mhz spectrum on T-Mobile for 3G. So I bought a C5306 for my wife, however the 3G isn't working, all we get is EDGE. Naturally I thought I'd at least get LTE, since it's advertised as an LTE phone but I'm not getting that either, even though we have LTE in my area. What's the deal? Has anyone else had this issue? In the phone settings I have it setup to receive LTE/GSM/WCDMA in that order but it doesn't seem to help.
The 5306 claims to have the right bands...
HSDPA 850 / 900 / 1900 / 2100
LTE 850 / 1700 / 1900 / 2100
I'm calling lies on either Sony or T-Mobile...
Click to expand...
Click to collapse
Maybe you accidently got a c5303 i'm in the us for vacation and i bought tmobile prepaid but i only got edge on my 5303 because of the baseband
Sent from my C5303 using XDA Free mobile app
noahvt said:
Maybe you accidently got a c5303 i'm in the us for vacation and i bought tmobile prepaid but i only got edge on my 5303 because of the baseband
Sent from my C5303 using XDA Free mobile app
Click to expand...
Click to collapse
It's a 5306. Otherwise it wouldn't have LTE listed in the baseband options when you type *#*#4636#*#*
EDIT - I take that back, I guess the 5303 does also have LTE, but different bands. God I hope it's not a 5303, how can you tell? Different ROMs come from different bases and depending on the ROM you install it'll say 5306 or 5303. The stock ROM that came installed on it said 5306, but I installed another custom one and it now says 5303, ugh.
Holy ****, not only do I have the wrong phone, I think I was defrauded in the process. This is a 5303 that was sold as a 5306. The seller just flashed 5306 firmware on top to make it look like a 5306. The picture below shows that it has the 5303 bands (1,3,5,7,8,20) and not the 5306 ones (1,2,4,5).
Does it say C5303 at Model Info? Or on the Box? If yes get your bud to the store
mrjraider said:
Does it say C5303 at Model Info? Or on the Box? If yes get your bud to the store
Click to expand...
Click to collapse
It says whatever firmware you put on it. The C5303 and C5306 firmware are interchangeable. Hence why I think they can sell them as "C5306" phones. This was on ebay, by the way. The only way you can tell is to look at what bands the phone supports, which I did above, you do that by typing *#*#7378423#*#* in the dialer and then going to Configuration in the Service Menu.
i have a c5306 i checked the bands. Anyways i am using it on att and i get h+ but no lte any ideas?
Hello guys, as you can see I'm a new one on this forum, just joined a minutes ago,
but frequently looking on here for Q&A about previous phones I had.
Ok, so basically I got a Xperia Z (C6603) unfortunately my carrier is Nii digital s. de r.l. de c.v, known as
''NEXTEL'' my data plan consist on HSPA+ & 3G, I'm not so experienced on this, but as far as I know,
this carrier runs on HSDPA 1700 / 1900 frecuencies, very compatible with another devices bounded to T-Mobile.
My last phone was an Moto X (XT1053 Custom Roms based on T-Mobile stock), didn't had any single problem with it,
I just wanted the elegant Xperia Z.
The Moto X it's fully capable to get HSDPA 850 / 900 / 1700 / 1900 / 2100 for 3G.
But my C6603 it's only capable of HSDPA 850 / 900 / 2100, since NEXTEL would run only on the 2 left missing from this one,
I've made a bit of research and then I said, so if 6603 is LTE capable the another variant 6602 should be able to get
a complete set of 3G frequencies HSDPA 850 / 900 / 1700 / 1900 / 2100, those are the ones that I need,
I'm not really interested on 4G or LTE networks for this mobile.
It's just that at the moment the device is practically useless for me, so by reading and looking on this forum I was able to
discover that this device is essentially the same one as the 6602, just with the hardware mods to get LTE.
I've downloaded many FTF's, flashing only the basebands of another roms, including ones from the ZL 6506, 6502, etc...
This didn't brick the phone, stills... No signal on the phone, the baseband didn't even changed on system info, I modified the build.prop too with something like...
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
And then flashing the different basebands...
(if there's a better detailed tutorial on this, should one of you guys be able to teach me the right way?)
So I was wondering if I should flash a complete FTF of the 6602 to get the phone working on a fully 3G network?
I'm not really interested on high speeds or LTE, just need the phone to be working on these frequencies to be able to make use of my carrier's plan that i'm paying atm.
One curious thing, if I use the same SIM on a xperia ZL, it gets wide signal almost around all the city.
I'm quite frustrated right now, hope any of you guys can help me with this.
Thanks!
(Sorry for my bad english though)
Device info:
Stock 4.4.2 (10.5.A.0.230)
Unlocked bootloader
Sim-Unlocked
Good battery health, not a single issue, it works fine with Telcel, Movistar & even Unefon Sim Cards.
-----------------------------
Uploaded an screenshot, I've just flashed a complete 4.1.2 stock rom of the 6602... No luck so far,
can any expert on the field, help me please?
Matiarena said:
Hello guys, as you can see I'm a new one on this forum, just joined a minutes ago,
but frequently looking on here for Q&A about previous phones I had.
Ok, so basically I got a Xperia Z (C6603) unfortunately my carrier is Nii digital s. de r.l. de c.v, known as
''NEXTEL'' my data plan consist on HSPA+ & 3G, I'm not so experienced on this, but as far as I know,
this carrier runs on HSDPA 1700 / 1900 frecuencies, very compatible with another devices bounded to T-Mobile.
My last phone was an Moto X (XT1053 Custom Roms based on T-Mobile stock), didn't had any single problem with it,
I just wanted the elegant Xperia Z.
The Moto X it's fully capable to get HSDPA 850 / 900 / 1700 / 1900 / 2100 for 3G.
But my C6603 it's only capable of HSDPA 850 / 900 / 2100, since NEXTEL would run only on the 2 left missing from this one,
I've made a bit of research and then I said, so if 6603 is LTE capable the another variant 6602 should be able to get
a complete set of 3G frequencies HSDPA 850 / 900 / 1700 / 1900 / 2100, those are the ones that I need,
I'm not really interested on 4G or LTE networks for this mobile.
It's just that at the moment the device is practically useless for me, so by reading and looking on this forum I was able to
discover that this device is essentially the same one as the 6602, just with the hardware mods to get LTE.
I've downloaded many FTF's, flashing only the basebands of another roms, including ones from the ZL 6506, 6502, etc...
This didn't brick the phone, stills... No signal on the phone, the baseband didn't even changed on system info, I modified the build.prop too with something like...
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
And then flashing the different basebands...
(if there's a better detailed tutorial on this, should one of you guys be able to teach me the right way?)
So I was wondering if I should flash a complete FTF of the 6602 to get the phone working on a fully 3G network?
I'm not really interested on high speeds or LTE, just need the phone to be working on these frequencies to be able to make use of my carrier's plan that i'm paying atm.
One curious thing, if I use the same SIM on a xperia ZL, it gets wide signal almost around all the city.
I'm quite frustrated right now, hope any of you guys can help me with this.
Thanks!
(Sorry for my bad english though)
Device info:
Stock 4.4.2 (10.5.A.0.230)
Unlocked bootloader
Sim-Unlocked
Good battery health, not a single issue, it works fine with Telcel, Movistar & even Unefon Sim Cards.
-----------------------------
Uploaded an screenshot, I've just flashed a complete 4.1.2 stock rom of the 6602... No luck so far,
can any expert on the field, help me please?
Click to expand...
Click to collapse
The Cellular frequency which a phone can operate depends on the MODEM which is a hardware component
You will not be able to tackle this issue by flashing 6602 firmware
''Qualcomm MDM9215M''
Both variants share the same exactly hardware, just programmed many hardware limitations I guess for the 6602 to only work on HSPA,
6603 didn't had those limitations so it can operate in LTE bands, as far as I know.
Matiarena said:
''Qualcomm MDM9215M''
Both variants share the same exactly hardware, just programmed many hardware limitations I guess for the 6602 to only work on HSPA,
6603 didn't had those limitations so it can operate in LTE bands, as far as I know.
Click to expand...
Click to collapse
You need the 1700/1900 bands ,no?
But your phone doesnt have the chip to receive those bands hence no network coverage...
Simply, if you want it to work you can get the motherboard of a faulty C6602 and put it in your phone, which is real expensive and not worth it.