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
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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
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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
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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...
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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
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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
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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?
I see that the Sony mobile US site has the z3c listed as coming soon. Is it best to just wait for that to come out or will the European version fully support all of the AT&T bands? I'd hate to import a phone and not get the best reception/internet.
I know it was suggested in another thread that it would work with AT&T but then there was some confusion in another thread about the phone possibly missing 1 or 2 bands. Any help from an expert would be greatly appreciated.
mazyou tube
I know Sony's white papers have been wrong in the past (Z1 Compact with glass back, grrrr ) but the one for the Z3 Compact D5803 has 4G bands Bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 20.
I've had a hunt around for AT&T's 4G bands but this seems a but trickier as it seems dependent on region, going by wikipedia it looks like the main bands are 2, 4 and 17 which are all supported by the European version per the above. It probably doesn't help that I'm not from the US and I don't have enough posts to add the URLs, sorry.
I feel like I remember reading back in the day that some companies used bands of the same frequency that weren't cross compatible. It's always made me nervous about buying non US phones. However my info could be wrong.
When I was in the states, I got a AT&T sim card. My phone definitely says that it has the lte bands. Still, it only displayed h+ while I was there. I did not bother to go back to the store and check because the speed was very good anyway. So maybe it's because the bands are different or it was working on 4g but just not displaying it, I don't know.
Sent from my C5503 using XDA Free mobile app
tudork said:
When I was in the states, I got a AT&T sim card. My phone definitely says that it has the lte bands. Still, it only displayed h+ while I was there. I did not bother to go back to the store and check because the speed was very good anyway. So maybe it's because the bands are different or it was working on 4g but just not displaying it, I don't know.
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AT&T must provision your sim for LTE otherwise you'll only receive 3G even if the phone is capable of 4G. Usually they do this based on the IMEI of your device and if it's a non AT&T phone then it won't appear in their database as LTE capable. There are ways for them to manually configure the sim for LTE by contacting support.
The UK model D5803 definitely supports AT&Ts LTE on bands 2, 4, and 17.
Does AT&T have more bands than 2,4,17?
I found when googling AT&T LTE bands that they apparently have also started to use band 5 (850mhz) but that's still supported by the Z3 compact. This was both on AT&T's forums and howardforums but I'm not sure if AT&T need to do something else to enable LTE support on that particular device. I think my own network (3 UK) has to do this as it took a few months for my unlocked Moto X to pick up their 4G network.
From AT&T: https://www.att.com/shop/wireless/byop.html
Refer to the manufacturer's website to verify your unlocked device works with a SIM card on an AT&T GSM network frequency:
• 3G UMTS network 850/1900MHz bands
• 4G LTE network AWS / 700 / 850 / 1900MHz bands
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AWS (1700/2100MHz) is band 4 (Blocks A, B, C, D, E)
700MHz is band 17 (blocks B, C)
850MHz is band 5
1900MHz is band 2
The overwhelming majority of AT&T LTE is on band 17. Bands 2 and 4 are used for additional capacity in some markets and/or some rural/smaller market coverage. I'm not sure they've rolled anything out on band 5 yet, but even so the Z3c has that covered.
OK,
thank you very much for the additional research. It seemed like that was the case but I don't trust my own opinion since I haven't done any real looking into this type of stuff in like 4 years.
derekmarch said:
OK,
thank you very much for the additional research. It seemed like that was the case but I don't trust my own opinion since I haven't done any real looking into this type of stuff in like 4 years.
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To answer your original question, as far as we know there is no US model of the Z3c, only the EU D5803 and Asia D5833. If Sony sells it unlocked in the US it will probably be the D5803.
In preparation, hopefully I'll have it in a week.
Programming non-AT&T devices with the correct APN and MMS data settings
Subscribing since I'm very interested in this phone and my service provider is AT&T
Works great. I live in both NY and San Francisco, and I get LTE everywhere on AT&T.
I imported the D5803 (EU) model through Expansys.
Yes. Just make sure to get the d5803 model.