So I've searched and attempted several times using, EMMA, SUS, PCC and various other tools I came across and I've had NO LUCK. I've an LT30P with XperimenT 2.3 installed - not by myself and I'd like to return it to base ATT firmware if I could for a possible sale and an update to the Sony/ATT firmware and JB might help the cause. I know NOTHING and I've learned that apparently the "bootloader" on my machine cannot be unlocked. The phone functions well and there's nothing that I'm aware of that are issues but if asked about ATT and "stock" I can't either explain or say here I'll correct it if you like.
There are no back-ups available on the Internal or 32GB SD card that has been added.
Might this be a "YAWNER" for "gregbradley"? Maybe but I'm prepared for that. Has it been explained or covered? I can't stumble on it. Do I know what to do with the information if it's presented to me? Likely not. Care to help? I'd appreciate it!
Thanks,
-Dave
At the top of this section is the all-in-one sticky thread. There you will find the information you need to restore your phone using FlashTool and an ftf file of the at&t firmware.
Sent from my Archos G9 using xda app-developers app
wvzr-1 said:
Might this be a "YAWNER" for "gregbradley"? Maybe but I'm prepared for that.
Thanks,
-Dave
Click to expand...
Click to collapse
But if you need further help after doing the advice from the post above it is OK to PM me and I will guide you through the process.
Stock ATT is. Actually the LT30at not the P. Flash the latest. LT30at ftf file using flashtools to get back to stock.
Sent from my Xperia Tablet Z
Use flashtool and flash ATT's FTF. But why would you switch back to att rom when the Xperia T firmware works on all Xperia TL's and is much faster than the stock att. Also the lt30p firmware will most likely get a 4.2.2 than the LT30at
Hello friends, I come from sub-forum for Xperia P, I became a Xperia U and I watch a rom stock official, ie bringing my phone is AT & T, that at first instance and then to put or try other roms .
I have a doubt in my terminal says
LT30at
Android Version: 4.0.4
Compilation: 7.0.B.1.152
But I see that most roms here LT30p says that the difference between the LT30at and LT30p, and if I can add a LT30p, or should I place specifically one that says LT30at.
Thanks for your help, the truth is that just yesterday I was handed my new device and want to start tune it. root, cwm, flashar different roms, or cooked with cwm.
Thank you,
rexromeox said:
Hello friends, I come from sub-forum for Xperia P, I became a Xperia U and I watch a rom stock official, ie bringing my phone is AT & T, that at first instance and then to put or try other roms .
I have a doubt in my terminal says
LT30at
Android Version: 4.0.4
Compilation: 7.0.B.1.152
But I see that most roms here LT30p says that the difference between the LT30at and LT30p, and if I can add a LT30p, or should I place specifically one that says LT30at.
Thanks for your help, the truth is that just yesterday I was handed my new device and want to start tune it. root, cwm, flashar different roms, or cooked with cwm.
Thank you,
Click to expand...
Click to collapse
The AT seems very similar.... but! the AT has a 4g network compatibility and you might lose that if you were to flash a rom from the lt30p?
Throbin Wood said:
The AT seems very similar.... but! the AT has a 4g network compatibility and you might lose that if you were to flash a rom from the lt30p?
Click to expand...
Click to collapse
Thanks, I read about that.
and I think evaluare one unbranded Rom
rexromeox said:
Thanks, I read about that.
and I think evaluare one unbranded Rom
Click to expand...
Click to collapse
http://www.andromods.com/apps-mod/easy-how-to-install-cwm-recovery-att-xperia-tl-lt30at.html
once you have cmw you can test to your hearts content
you may need to re flash the recovery after flashing new roms (research that)
rexromeox said:
Hello friends, I come from sub-forum for Xperia P, I became a Xperia U and I watch a rom stock official, ie bringing my phone is AT & T, that at first instance and then to put or try other roms .
I have a doubt in my terminal says
LT30at
Android Version: 4.0.4
Compilation: 7.0.B.1.152
But I see that most roms here LT30p says that the difference between the LT30at and LT30p, and if I can add a LT30p, or should I place specifically one that says LT30at.
Thanks for your help, the truth is that just yesterday I was handed my new device and want to start tune it. root, cwm, flashar different roms, or cooked with cwm.
Thank you,
Click to expand...
Click to collapse
you tried installing lt30p roms on lt30at?, did it work for you?
Hi guys, please I need some help with my xperia z, it presently does not get any network regardless of changing sim. Dis occurred few days after upgrading to newest firmware .67. It worked fine after some days but signal started gettin poorer.realised dat after givin the phone a little bump it comes back to full signal.eventually it stopped getting network altogether, except in rare cases when I feel I'm close to a tower , it searches but cannot register on the network sayin to ensure that a network signal is in range 99asu.I also cannot switch to manual select of network. Please anybody with a solution. Want to know if its a hardware or software problem. I don't have a sony service centre here that can help me.thanks
I had a similar issue and found that my "APN" was missing (Telcel Mexico). I created a new APN from information on the Internet and all is well.
Sent from my C6602 using XDA Premium 4 mobile app
gwithrow said:
I had a similar issue and found that my "APN" was missing (Telcel Mexico). I created a new APN from information on the Internet and all is well.
Sent from my C6602 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
i doubt if its a similar issue. i dont get any signal at all
my brother it seems that the device is faulty... get it RMA'd
rohit25 said:
my brother it seems that the device is faulty... get it RMA'd
Click to expand...
Click to collapse
Pls what do you mean by RAM'd?
mibz said:
Hi guys, please I need some help with my xperia z, it presently does not get any network regardless of changing sim. Dis occurred few days after upgrading to newest firmware .67. It worked fine after some days but signal started gettin poorer.realised dat after givin the phone a little bump it comes back to full signal.eventually it stopped getting network altogether, except in rare cases when I feel I'm close to a tower , it searches but cannot register on the network sayin to ensure that a network signal is in range 99asu.I also cannot switch to manual select of network. Please anybody with a solution. Want to know if its a hardware or software problem. I don't have a sony service centre here that can help me.thanks
Click to expand...
Click to collapse
What model do you have??
You upgraded by PC Companion or by flashtool?? Maybe the baseband is incorrect and the phone don't have signal, maybe your carrier use two band and not both are in all coverage.
yamiAMR said:
What model do you have??
You upgraded by PC Companion or by flashtool?? Maybe the baseband is incorrect and the phone don't have signal, maybe your carrier use two band and not both are in all coverage.
Click to expand...
Click to collapse
Initially upgraded to .434 using flashtool, then .67 by OTA. By baseband do u mean 2g and 3g? Cos I don't get any form of signal at all.
Hi there, I have had the same problem: after updating the XZ to 4.2.2 (2.67 over OTA) the signal dropped instantly. Therefore I had to send it back Sony Care. They fixed it. The update has overwritten a different smallband/baseband-version above the other one, just as I suspected. I bet you can flash it yourself (your an XDA user..) instead of waiting 2 weeks or more. If you don't know how it works and you've absolutely no experience with flashing, just send it back to Sony care.
I think the easiest way is to flash a different (older) baseband-version on your XZ, reboot/factory reset and see if it works. The second method is to try downgrading the software to .244 INCLUDING the baseband-version, then update it by flashing the XZ to 2.67 while EXCLUDING the baseband-version. The third option is to re-flash (with flashtool) the 2.67 update but a different version (GLOBAL).
My phone details:
Modelnumber: C6603
Android-version: 4.2.2
Smallbandversion: 9x15A-ACEFWMAZQ-30110068-44
Kernelversion: 3.4.0g43a9ba9
Buildnumber: 10.3.1.A.2.67
Altough your smallband/baseband may differ from mine. Therefore, please find your own software-version. I'm using:
GLOBAL-LTE_10.3.1.A.2.67 (Netherlands)
Goodluck! Please let us know about your issue:fingers-crossed:.
mibz said:
Initially upgraded to .434 using flashtool, then .67 by OTA. By baseband do u mean 2g and 3g? Cos I don't get any form of signal at all.
Click to expand...
Click to collapse
But what Xperia Z model do you have?? C6603, C6602, C6606??
I have a similar situation in the case of C6603, in my carrier sometimes I have 2G signal but never 3G and other times no signal. In the case of OTA or PC Companion updates, sometimes upgrade to diferent model or carrier, I have a friend that upgrade his Xperia Arc by PC Companion but with the uncarrier firmware. Maybe this is your case, the OTA firmware don't well upgrade your base band.
In this case I suppose that you can flash only the baseband by Flashtool, but be carreful that the firmware was made for your Xperia Z (C6603, C6602, C6606).
yamiAMR said:
But what Xperia Z model do you have?? C6603, C6602, C6606??
I have a similar situation in the case of C6603, in my carrier sometimes I have 2G signal but never 3G and other times no signal. In the case of OTA or PC Companion updates, sometimes upgrade to diferent model or carrier, I have a friend that upgrade his Xperia Arc by PC Companion but with the uncarrier firmware. Maybe this is your case, the OTA firmware don't well upgrade your base band.
In this case I suppose that you can flash only the baseband by Flashtool, but be carreful that the firmware was made for your Xperia Z (C6603, C6602, C6606).
Click to expand...
Click to collapse
ok thanks i use a c6602
tally114 said:
Hi there, I have had the same problem: after updating the XZ to 4.2.2 (2.67 over OTA) the signal dropped instantly. Therefore I had to send it back Sony Care. They fixed it. The update has overwritten a different smallband/baseband-version above the other one, just as I suspected. I bet you can flash it yourself (your an XDA user..) instead of waiting 2 weeks or more. If you don't know how it works and you've absolutely no experience with flashing, just send it back to Sony care.
I think the easiest way is to flash a different (older) baseband-version on your XZ, reboot/factory reset and see if it works. The second method is to try downgrading the software to .244 INCLUDING the baseband-version, then update it by flashing the XZ to 2.67 while EXCLUDING the baseband-version. The third option is to re-flash (with flashtool) the 2.67 update but a different version (GLOBAL).
My phone details:
Modelnumber: C6603
Android-version: 4.2.2
Smallbandversion: 9x15A-ACEFWMAZQ-30110068-44
Kernelversion: 3.4.0g43a9ba9
Buildnumber: 10.3.1.A.2.67
Altough your smallband/baseband may differ from mine. Therefore, please find your own software-version. I'm using:
GLOBAL-LTE_10.3.1.A.2.67 (Netherlands)
Goodluck! Please let us know about your issue:fingers-crossed:.
Click to expand...
Click to collapse
thanks a lot, i'l try what u suggested, i know how to flash but dunno how i can do that without the baseband like u said, cos i already did a factory reset .i use a c6602 guess il find a version here that i can use.i'l hola at you if i hit any roadblocks cos i dont have esony care here.thanks a lot
mibz said:
ok thanks i use a c6602
Click to expand...
Click to collapse
Look this: C6602 10.3.1.A.2.67 STOCK
If you have doubts and I can help you tell me.
To find your version, just dial *#*#7378423#*#* => service info => software info => File system version: ......; download it from Xda and (re-)flash it. I've read about this; it happens a lot with XZ's with the GLOBAL firmware. You've probably the same version. Good luck and please let us know
tally114 said:
To find your version, just dial *#*#7378423#*#* => service info => software info => File system version: ......; download it from Xda and (re-)flash it. I've read about this; it happens a lot with XZ's with the GLOBAL firmware. You've probably the same version. Good luck and please let us know
Click to expand...
Click to collapse
hi, i jst re flashed with the 2.67 version the other guy posted in this thread, and its still not working, no network signal at all (0 dbm 99 asu), i realised i have the same baseband and kernel version with yours although i use a c6602. its global_hspa though.what do you think i should do next please. thanks
mibz said:
hi, i jst re flashed with the 2.67 version the other guy posted in this thread, and its still not working, no network signal at all (0 dbm 99 asu), i realised i have the same baseband and kernel version with yours although i use a c6602. its global_hspa though.what do you think i should do next please. thanks
Click to expand...
Click to collapse
Try to flash full firmware, because you don't have signal at all, maybe could be hardware issue. Cultural question, You try your sim card in another phone, don't you?
Okay I eventually found out what the problem was.it's a hardware problem, connection of the antenna near the vibrator, bottom right when lookin at back of phone was loose.thanks to all who posted suggestions.eventually opened it myself.
Hello
I would like to request Xperia Z C6603 4.1.2 Official with Genius Version or Global Version. i already checked where i can get but i can't see.
So, please give me who u have with mediafire link.
Look in the "Firmware" section of this thread. There are a lot of 4.1.2 roms listed there. I didn't try them to see if the downloads are active, but I'm sure you'll find one that is.
Sent from my C6603 using Tapatalk
Hey everyone,
I need help soon as possible.
I have a Xperia Z1 C6903 with android 5.1.1 and my firmware is 14.6.A.9.368 and I want to downgrade to 4.4 (KitKat) because Android 5.1.1 is stealing a lot of battery and is slower than 4.4, so I want to get back to it.
MY PHONE IS ROOTED.
I saw a lot of threads about this, but I still don't know much..
I have flashtool, I just need a download link for a firmware of 4.4 (KitKat) that is compatible with my phone and will run without problems.
(I dont know if this is important but my SI is 1276-1925.8 EL,EN) <- Don't know what is this..
I'm from Portugal, so I'm sure I need a firmware of Portugal version I dont know.. I think I have an Unlocked phone.
Waiting for help.. Thanks!
Wrong board - this should have been under XPERIA Z1 Q&A, HELP & TROUBLESHOOTING
No, you don't need to unlock your phone's bootloader to use Flashtool and flash a stock 4.4.4
You can check the FTF download links posted in our community boards. Technically speaking it's OK to use another regions FTF on your phone, i.e. Philippine phone (like mine) using Singapore ROM is just as the same as Philippine phone using Philippine ROM.
I recently downgraded to 4.4.4 from a spanish mod'er.
Was also just sick of LL's battery life... and suddenly I can forget about charging etc. Finally lasts for about two days again...
http://www.htcmania.com/showthread.php?t=897152
Lollipop is faster and much better overall
Kitkat just fur battery life on 3g and app compatibility
I find if i disable location the battery last longer
Sent from my C6903 using Tapatalk