Database Develop

Does a Xperia TL 30LT at&t work on the T-Mobile LTE band if unlocked and flashed

Hi there guys,
I'm new here and was looking at getting an Sony Xperia TL LT30at from eBay. I have read several threads on installing the LT30p version to this phone. But, the one answer I can't find is will this LT30at to work on the T-Mobile network and also use the LTE band. So to be clear, I want the 3G/4G band (1700/2100) and the LTE band(IV). Can it be done on this phone?? TIA!

daztd94 said:
Hi there guys,
I'm new here and was looking at getting an Sony Xperia TL LT30at from eBay. I have read several threads on installing the LT30p version to this phone. But, the one answer I can't find is will this LT30at to work on the T-Mobile network and also use the LTE band. So to be clear, I want the 3G/4G band (1700/2100) and the LTE band(IV). Can it be done on this phone?? TIA!
Click to expand...
Click to collapse
1. Flash UK Version .140 Stock Jellybean LT30p version by using flash tool
2. Go thru setup guide and stuff
3 place T-Mobile Sim in phone
4. buy a Unlock Sim service
5 enter code when asked
6 PROFIT
---------- Post added at 05:56 PM ---------- Previous post was at 05:52 PM ----------
AndroidHoneyComb said:
1. Flash UK Version .140 Stock Jellybean LT30p version by using flash tool
2. Go thru setup guide and stuff
3 place T-Mobile Sim in phone
4. buy a Unlock Sim service
5 enter code when asked
6 PROFIT
Click to expand...
Click to collapse
ah and i forgot to say this " exclude the baseband when flashing the UK version or lte wont work "

Thanks man. Now, I just have to get the phone! This will be my first modding of a phone.

Ok, got the phone from eBay. Phone is is awesome shape. Did the flash for the UK .140 and it worked perfectly. But, my issue is that when I check my base bands by dialing *#*#7378423#*#* .....I see that I don't have 1700 or 2100. Did I do something wrong? I was thinking should I flash the LT30a file since that has the base bands of 1700 & 2100? (The LT30a phone has the 1700/2100 bands as stated on the white papers)
Thanks

FYI, I did exclude base bands. But, I think it's keeping the AT&T bands and not adding the t-mobile bands of the 1700 and 2100. I do see the LTE IV band for T-mobile.

i don't have UTMS BC4 on my "Working Bands" list.

daztd94 said:
i don't have UTMS BC4 on my "Working Bands" list.
Click to expand...
Click to collapse
Your fine, its just the software showing that and ATT does not do that. Also dont flash the LT30a only flash the .140. Keep the baseband from the LT30AT dont flash any Lt30a files

So, will that band magically show up soon or will I have to do something to get it? Thanks

daztd94 said:
So, will that band magically show up soon or will I have to do something to get it? Thanks
Click to expand...
Click to collapse
It wont show. It just works.
Try it

I flashed the phone with only the basebands and it worked. I get everything now. That's why I wasn't seeing UTMS - BC4 when I excluded basebands at first.

experia t
daztd94 said:
I flashed the phone with only the basebands and it worked. I get everything now. That's why I wasn't seeing UTMS - BC4 when I excluded basebands at first.
Click to expand...
Click to collapse
does it mean you have to flash everything and did the 3G started working

[email protected] said:
does it mean you have to flash everything and did the 3G started working
Click to expand...
Click to collapse
yes, if you flash with the new software and include the new baseband it will work.the only thing you will have to do is change the network settings via *#*#4636#*#* and look under....Phone information and the change network settings to LTE.

daztd94 said:
yes, if you flash with the new software and include the new baseband it will work.the only thing you will have to do is change the network settings via *#*#4636#*#* and look under....Phone information and the change network settings to LTE.
Click to expand...
Click to collapse
i have a sony experia T LT30a the problem is it does not connect to 3G network whenever i try setting it to wcdma the network goes off with a red x .if i set to lte/wcdma/gsm i keep missing calls whenever the phone tries change through thise network
any solution to that.............

[email protected] said:
i have a sony experia T LT30a the problem is it does not connect to 3G network whenever i try setting it to wcdma the network goes off with a red x .if i set to lte/wcdma/gsm i keep missing calls whenever the phone tries change through thise network
any solution to that.............
Click to expand...
Click to collapse
Change your APN or makes sure its correct

[email protected] said:
i have a sony experia T LT30a the problem is it does not connect to 3G network whenever i try setting it to wcdma the network goes off with a red x .if i set to lte/wcdma/gsm i keep missing calls whenever the phone tries change through thise network
any solution to that.............
Click to expand...
Click to collapse
Also change it to lte/gsm/wcdma instead.
Use the APN for T-Mobile here: http://forum.xda-developers.com/showpost.php?p=46422870&postcount=2
In case where your IMEI disappear or becomes 0000000, the above cures it as well. IMEI will show again without further reboot.

[Q] Flashable Roms for T-Mobile Xperia Z

So far I haven't seen a whole lot on this just that CM doesn't work right now. Does that mean roms like Paranoid Android and PAC Man won't work either??
Which type of roms will work?
Can anyone list a few of the best ones? Mine's coming through UPS on Wednesday and I wanna be prepared to do everything right away. Thanks!

I assume you mean the C6606 (the T-Mobile US Z).
If so, you can only flash stock based roms.
The bootloader cannot be unlocked on the C6606. Locked bootloader means no custom kernels, which in turn means no roms like PA, CM, PAC etc will work.
So, to answer your question, any rom that says it's for locked bootloader should work.
Sent from my C6603 using Tapatalk 2

http://forum.xda-developers.com/showthread.php?t=2293957
I'm running this Rom, I really like it,fast stable smooth and a great daily driver,I rooted using doomlord method,installed the dual recovery by nut also updated to newest 244 firmware with is the newest 4.2.2 update you will have to update to that by flashing a ftf. For the 6603 with will make everything still work but wifi. Calling,just read alot till wed but again you'll have to use stuff for 6603 because nothing for our model,but it will work good,you'll keep lte but won't get future updates from tmobile,I can help but read and search alot
Sent from my C6603 using Tapatalk 2

Jonathan2677 said:
http://forum.xda-developers.com/showthread.php?t=2293957
I'm running this Rom, I really like it,fast stable smooth and a great daily driver,I rooted using doomlord method,installed the dual recovery by nut also updated to newest 244 firmware with is the newest 4.2.2 update you will have to update to that by flashing a ftf. For the 6603 with will make everything still work but wifi. Calling,just read alot till wed but again you'll have to use stuff for 6603 because nothing for our model,but it will work good,you'll keep lte but won't get future updates from tmobile,I can help but read and search alot
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
Okay I've since rooted my phone and installed dual recovery. do I only have to flash that 15mb ftf file now? That's where I'm stuck at. The instructions in that forum didn't exactly work for me. Can you tell me everything you did please? Hopefully you can get back to me in the next ten hours thanks for your help

I'm opening flashtools. I click flash at the top, click flashmode, then I click that newest ftp and click flash. The window that says wait for flashtool pops up.I power off my phone..hold down the volume up button and enter the usb cable. The light turns blue and I believe that's fastboot mode but nothing happens. That window just stays open on my computer. It's ftf C6603_10.3.1A.0.244_GenericCE-stripped.ftf

knightsray said:
I'm opening flashtools. I click flash at the top, click flashmode, then I click that newest ftp and click flash. The window that says wait for flashtool pops up.I power off my phone..hold down the volume up button and enter the usb cable. The light turns blue and I believe that's fastboot mode but nothing happens. That window just stays open on my computer. It's ftf C6603_10.3.1A.0.244_GenericCE-stripped.ftf
Click to expand...
Click to collapse
Volume up is fastboot. You don't want to be in fastboot mode.
You need to hold volume down and plug the USB cable in to enter flashmode to use flashtool.
How to flash stock roms with Flashtool
Sent from my C6603 using Tapatalk 2

kingvortex said:
Volume up is fastboot. You don't want to be in fastboot mode.
You need to hold volume down and plug the USB cable in to enter flashmode to use flashtool.
How to flash stock roms with Flashtool
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
Okay so do I need to flash just that ftf or a whole 6603 Rom?

rooted t-mo xperia z with cwm for recovery here. been looking for a ROM where I won't lose wifi or LTE. so for us that have a locked bootloader we can't flash a kernel and overclock our phone?

bud760 said:
rooted t-mo xperia z with cwm for recovery here. been looking for a ROM where I won't lose wifi or LTE. so for us that have a locked bootloader we can't flash a kernel and overclock our phone?
Click to expand...
Click to collapse
I have the T-Mobile Sony Xperia Z. First I rooted with doomlords method. Then I installed dual recovery. I made a backup of my phone and installed the newest ftf file using flashtools. Then right after I flashed the rom that was posted above. It's working great so far and you keep lte and wifi. Hope that helps. It really is the best rom available to us at the moment because of the locked bootloader.

bud760 said:
rooted t-mo xperia z with cwm for recovery here. been looking for a ROM where I won't lose wifi or LTE. so for us that have a locked bootloader we can't flash a kernel and overclock our phone?
Click to expand...
Click to collapse
i have been researching this. it doesnt seem like there is going to be anyone who can unlock the bootloader. but there might be another way around it kind of like "mini loader" basically we will be able to flash aosp roms and custom kernals just no unlocked bootloader. pretty much jump thru hoops to do anything with c6606 t-mobile has Royally F'ed us... i really want someone to unlock that bootloader n RUB IT IN THEIR FACE! i dont know why they bothered with this... but theres got to be a way around this.... keep on hoping and lets see what happens i guess...

My xperia z should be arriving in the mail soon so I have a few questions. Just to confirm can the dual recovery foound here: http://forum.xda-developers.com/showthread.php?t=2261606 be installed on the c6606? Also are there any custom roms based on the t-mobile firmware because I would like to keep wifi calling. Thanks.

Jonathan2677 said:
http://forum.xda-developers.com/showthread.php?t=2293957
I'm running this Rom, I really like it,fast stable smooth and a great daily driver,I rooted using doomlord method,installed the dual recovery by nut also updated to newest 244 firmware with is the newest 4.2.2 update you will have to update to that by flashing a ftf. For the 6603 with will make everything still work but wifi. Calling,just read alot till wed but again you'll have to use stuff for 6603 because nothing for our model,but it will work good,you'll keep lte but won't get future updates from tmobile,I can help but read and search alot
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
what is not working with wifi? please explain
knightsray said:
I have the T-Mobile Sony Xperia Z. First I rooted with doomlords method. Then I installed dual recovery. I made a backup of my phone and installed the newest ftf file using flashtools. Then right after I flashed the rom that was posted above. It's working great so far and you keep lte and wifi. Hope that helps. It really is the best rom available to us at the moment because of the locked bootloader.
Click to expand...
Click to collapse
are you sure your wifi is working? do i need dual recovery or is CWM for locked bootloader ok? which ftf did you flash? thanks for all the help in advance.

bud760 said:
what is not working with wifi? please explain
are you sure your wifi is working? do i need dual recovery or is CWM for locked bootloader ok? which ftf did you flash? thanks for all the help in advance.
Click to expand...
Click to collapse
He meant Wifi Calling, which is only available on T-Mobile firmware. He just put a period in the wrong place.

Bump...any new Roms where we don't lose wi-fi calling?

None that Ive seen. Only ROMs for locked BL that are coming out are based on firmware made for the international market (4.2.2), none on T-Mobile (4.1.1).
The locked BL is really disappointing. Really limits the possibilities. I bought the Z on impulse and didnt research the Development situation on the Tmobile version before i bought, now im regretting it. I love the hardware and design, but will likely be trading it in by Christmas because of the lack of options for custom ROMs. Samsungs may be ugly as hell but you can hack the hell out of them. If HTC makes a phablet with the design of the One, Ill probably make the switch.
Back on topic, which LB ROM is most recommended and bug free? Any way to fix the poor wifi signal? Its chewing my battery like nobody's business.
Sent from my C6603 using XDA Premium HD app

Really disappointed with no custom Roms too might trade for another phone but not going to samsuck. Still have faith in what the devs here can do though.

Jonathan2677 said:
http://forum.xda-developers.com/showthread.php?t=2293957
I'm running this Rom, I really like it,fast stable smooth and a great daily driver,I rooted using doomlord method,installed the dual recovery by nut also updated to newest 244 firmware with is the newest 4.2.2 update you will have to update to that by flashing a ftf. For the 6603 with will make everything still work but wifi. Calling,just read alot till wed but again you'll have to use stuff for 6603 because nothing for our model,but it will work good,you'll keep lte but won't get future updates from tmobile,I can help but read and search alot
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
Getting my z tomorrow from Tmo.. I'm pretty advanced in Android but in the Rom instructions it says to flash the new baseband.. wouldn't that mess with the LTE connection?
Sent from my LG-D801 using Tapatalk 4

seniorstew said:
Getting my z tomorrow from Tmo.. I'm pretty advanced in Android but in the Rom instructions it says to flash the new baseband.. wouldn't that mess with the LTE connection?
Sent from my LG-D801 using Tapatalk 4
Click to expand...
Click to collapse
did you end up flashing a custom rom? we're in the same city so if u happen to not get 4G i don't want to flash what u flashed

C5502 or C5503?

how can you actually tell which device you have? as both FW works on both devices with no problem...
but cpu-z and service menu gives you either C5503 or C5502 depending on fw you flashed, and not on actual hardware.
or mybe it's possible al ZR are the same and support all 3g and lte freqs?

C5503 - LTE / C5502 - 3G. That's all you,can't have C5502 with LTE enabled cos there is no modem integrated in it.

effective said:
C5503 - LTE / C5502 - 3G. That's all you,can't have C5502 with LTE enabled cos there is no modem integrated in it.
Click to expand...
Click to collapse
i know the differences... i was asking how can i know which do i have?
it works with any FW i flash on it, and theres no lte in israel where i live. so i don't know how i can actually check it.

shteren said:
i know the differences... i was asking how can i know which do i have?
it works with any FW i flash on it, and theres no lte in israel where i live. so i don't know how i can actually check it.
Click to expand...
Click to collapse
So..Options - About phone - doesn't show it ? oor check typing in dial this - *#*#7378423#*#* and see there :highfive:

effective said:
So..Options - About phone - doesn't show it ? oor check typing in dial this - *#*#7378423#*#* and see there :highfive:
Click to expand...
Click to collapse
Please read what I wrote up! It gives the model according to the fw that I flashed...

anyone else have any idea?

Some reported that LTE is possible in C5502 since both device comes with the same chipset and the LTE modem should be integrated within the chipset.
However no one tested and confirm this.

shteren said:
i know the differences... i was asking how can i know which do i have?
it works with any FW i flash on it, and theres no lte in israel where i live. so i don't know how i can actually check it.
Click to expand...
Click to collapse
remove the cover, remove the battery, and read the label...

chewdaniel said:
remove the cover, remove the battery, and read the label...
Click to expand...
Click to collapse
haha! you evil genius! who whould have thought of the analogue method?
guess i have C5502 guys
it means nothing since my carrier uses 850/2100 which are supported by both 5502 and 5503

Need assistance with the Sony Xperia Z C6603/C6606 GPS dont work after Lolipop 5.1.1

Hi , ok ill get right down to it. I got an Xperia Z not really sure if its a C6603 or a C6606, but according to the IMEI and an internet search it says it the C6606 model. Which is quite strange as I had bought it new online and the seller was advertising it as the C6603 model , it actually had the android 4.3 preinstalled when I got it, in the phone specs it did say C6603 but that didnt match what the IMEI was indicating . Now the issue im having is I wanted to upgrade to the lolipop 5.1.1 , so i tried the sony companion software but it said i already had the newest software which is not true as the newest software is 5.1.1 and im running 4.3. So next i downloaded the 5.1.1 through the flashtool for the C6603 model , the central European version and it works great but just one issue is im not getting any GPS fix nothing , it did work with the older android version , any suggestions ? by the way im still not sure if its a C6606 or a C6603 , IMEI states its a C6606 , but i cannot locate any lolipop 5.1.1 android firmware for it so up till now i tried the C6603 lolipop and get no GPS fix , any help kindly appreciated iv spent 2 days on this dont know what to do .

mkivr6 said:
Hi , ok ill get right down to it. I got an Xperia Z not really sure if its a C6603 or a C6606, but according to the IMEI and an internet search it says it the C6606 model. Which is quite strange as I had bought it new online and the seller was advertising it as the C6603 model , it actually had the android 4.3 preinstalled when I got it, in the phone specs it did say C6603 but that didnt match what the IMEI was indicating . Now the issue im having is I wanted to upgrade to the lolipop 5.1.1 , so i tried the sony companion software but it said i already had the newest software which is not true as the newest software is 5.1.1 and im running 4.3. So next i downloaded the 5.1.1 through the flashtool for the C6603 model , the central European version and it works great but just one issue is im not getting any GPS fix nothing , it did work with the older android version , any suggestions ? by the way im still not sure if its a C6606 or a C6603 , IMEI states its a C6606 , but i cannot locate any lolipop 5.1.1 android firmware for it so up till now i tried the C6603 lolipop and get no GPS fix , any help kindly appreciated iv spent 2 days on this dont know what to do .
Click to expand...
Click to collapse
So just to recap theres 2 issues here :
1) GPS isnt able to get a FIX after the lolipop 5.1.1 update for C6603 wheras it did work on the older 4.3 android.
2) According to the IMEI it says my phone is a C6606 but I havent seen any android lolipop 5.1.1 firmwares for that model.

mkivr6 said:
So just to recap theres 2 issues here :
1) GPS isnt able to get a FIX after the lolipop 5.1.1 update for C6603 wheras it did work on the older 4.3 android.
2) According to the IMEI it says my phone is a C6606 but I havent seen any android lolipop 5.1.1 firmwares for that model.
Click to expand...
Click to collapse
Alright finally I was able to get it to work. Turns out the metal aluminum bumper case I was using was interfering with the GPS , after taking off the bumper case the GPS runs.
However on thing I still cant get to work correctly is my LTE or 4G , i got a new SIM and it still dont work any suggestions ? I mean the LTE also didnt work with the older android version I ran before. Any ideas ?

mkivr6 said:
Alright finally I was able to get it to work. Turns out the metal aluminum bumper case I was using was interfering with the GPS , after taking off the bumper case the GPS runs.
However on thing I still cant get to work correctly is my LTE or 4G , i got a new SIM and it still dont work any suggestions ? I mean the LTE also didnt work with the older android version I ran before. Any ideas ?
Click to expand...
Click to collapse
You can find the model number at the bottom of the phone, it says made in China C660X and then the IMEI and the production date. If it's a C6606 it only supports LTE Bands 700, 850, 1700 and 2100. I guess your carrier uses a different one. In your case I would return it, as you bought a C6603 and got a C6606

St.Jimmy90 said:
You can find the model number at the bottom of the phone, it says made in China C660X and then the IMEI and the production date. If it's a C6606 it only supports LTE Bands 700, 850, 1700 and 2100. I guess your carrier uses a different one. In your case I would return it, as you bought a C6603 and got a C6606
Click to expand...
Click to collapse
Thanks for the reply , returning it isnt possible. On the back it says C6603 but when I input the IMEI online it says its actually a C6606 which is intended for the US market and im in Central Europe. Could this be affecting my ability to get LTE ? So far iv managed only to get H+ , my carrier told me that im in range of the LTE , LTE is enabled on my account and my SIM is also compatible. So I guess then how can I enter the settings or is there an app which will help me modify the LTE band to suit the one in Europe ?

LTE Not Working

hello guys..i have xperia c6603 phone...i am using airtel network..my phone doesn't work on lte..whenever i try to connect it works only on 3g..i think i have lost lte version..i bought it from malaysia..i have checked in service menu but it doesn't show any lte baseband on working bands..i am using C6603_10.7.A.0.222_R1E_India Generic_1275-1562 ftf only..i tried german generic but not working..
please guys give me the solutions to solve this problem..
i have attached some screen shots below

Ajithseelan said:
hello guys..i have xperia c6603 phone...i am using airtel network..my phone doesn't work on lte..whenever i try to connect it works only on 3g..i think i have lost lte version..i bought it from malaysia..i have checked in service menu but it doesn't show any lte baseband on working bands..i am using C6603_10.7.A.0.222_R1E_India Generic_1275-1562 ftf only..i tried german generic but not working..
please guys give me the solutions to solve this problem..
i have attached some screen shots below
Click to expand...
Click to collapse
hmm i have nearly same baseband number my last number is 85 i have no problem with LTE in Germany

Xian S2 said:
hmm i have nearly same baseband number my last number is 85 i have no problem with LTE in Germany
Click to expand...
Click to collapse
for yours its working..but for me not working...
guys please say any suggestion to bring back lte version