{SOLVED}[Q] [HELP] XZ Bricked - Baseband Unknown - Xperia Z Q&A, Help & Troubleshooting

I unlocked bootloader of my device this morning. Backed up TA as mentioned in forums, Flashed Doomlord's kernel v9 but device won't boot. Says Process System is Not Responding.. I relocked bootloader restored TA, Restored Using SUS, Flashtool but no luck.
Then I flashed old firmware and booted the device but still one problem. IMEI, Baseband all gone..
Help me plz
SPECIAL THANKS TO Kiko_1272 THANKS A MILLION FOR YOUR SUPPORT..:highfive::laugh:
ALSO THANKS TO - gm007 & kgs1992:victory:

Try sus again.
Sent from my C6603 using xda premium

gm007 said:
Try sus again.
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
Which firmware shud i flash in order to run SUS? I flashed c6603 .253 sweden unbranded now SUS say no software available for your device?!

shysparrow said:
Which firmware shud i flash in order to run SUS? I flashed c6603 .253 sweden unbranded now SUS say no software available for your device?!
Click to expand...
Click to collapse
Ignore this message and repair it anyway.
Sent from my C6603 using xda premium

gm007 said:
Ignore this message and repair it anyway.
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
I have very similar problem as you can see in this post: http://forum.xda-developers.com/showthread.php?t=2350470
My SUS used to say you have the latest firmware and all you can do is click ok?
Which SUS do you recommend?

Kiko_1272 said:
I have very similar problem as you can see in this post: http://forum.xda-developers.com/showthread.php?t=2350470
My SUS used to say you have the latest firmware and all you can do is click ok?
Which SUS do you recommend?
Click to expand...
Click to collapse
What do you mean "Which SUS" ? THE SUS? http://software.sonymobile.com/update_service_setup

Find any 434 firmware(but not UK unbranded ) and flash it with flashtool than boot your phone,after that use sus(sony update service) sure it will find a new software.
Sent from my C6603 using xda premium

QualQuek said:
What do you mean "Which SUS" ? THE SUS? http://software.sonymobile.com/update_service_setup
Click to expand...
Click to collapse
I thought the SUS Version may make a difference like how Flashtool has many versions but Thank you very much.

gm007 said:
Find any 434 firmware(but not UK unbranded ) and flash it with flashtool than boot your phone,after that use sus(sony update service) sure it will find a new software.
Sent from my C6603 using xda premium
Click to expand...
Click to collapse
I flashed .307 Belgium as it was one I already had. Everything was working well however I had no Baseband and therefore no Signal and the phone wouldn't recognise my SIM card.
I then used SUS to update it and I am back to the same boot-loop as before.
Any ideas? Maybe I need to fix Baseband before updating but have no clue how to do that?

Kiko_1272 said:
I flashed .307 Belgium as it was one I already had. Everything was working well however I had no Baseband and therefore no Signal and the phone wouldn't recognise my SIM card.
I then used SUS to update it and I am back to the same boot-loop as before.
Any ideas? Maybe I need to fix Baseband before updating but have no clue how to do that?
Click to expand...
Click to collapse
I'm desperate to fix Baseband but donno how.. even google is not helping lol.. I restored TA ALL OK but still same prob. can't even see my IMEI # using dial pad or Service menu.. Menu Hangs when tapped on customization..
I donno where what went wrong duh!

shysparrow said:
I'm desperate to fix Baseband but donno how.. even google is not helping lol.. I restored TA ALL OK but still same prob. can't even see my IMEI # using dial pad or Service menu.. Menu Hangs when tapped on customization..
I donno where what went wrong duh!
Click to expand...
Click to collapse
Hey bro I finally figured it out!! So after thinking about and wondering why baseband isn't working I realised it is because of missing IMEI.
Then I thought where would IMEI be stored; IN THE TA PARTITION!!
So what I did was:
1. Flash Belgium .307 with Flashtool.
2. Setup phone normally so that it is usable. Turn on USB Debugging and Unknown Sources.
3. Then get DoomLords Root Toolkit; Plug in phone normally while it is on and run the kit so that it Roots the phone.
4. After that restarts make sure you have Super SU and it is working.
5. Connect to Flashtool while the phone is on and it will automatically run through the phone and tell you all the details of the phone and Busybox and Root Access Allowed and stuff.
6. Once all is well and you know phone is Rooted and stuff; close Flashtool and open Backup TA.
7. Then simply Restore your TA partition.
8. Reboot and check your Baseband Version and IMEI number are present and correct.
9. All should be working now; Really hope it works out for you too!
I will be trying to update and see what that leads to.
If you need links to any of the above stuff let me know. Will be glad to help you out.

Great ..!! u managed to get the baseband and IMEI back?

shysparrow said:
Great ..!! u managed to get the baseband and IMEI back?
Click to expand...
Click to collapse
I got everything back my friend. I also just updated to 4.2.2 with SUS and it works too!!
Are you going to try my steps?

Kiko_1272 said:
I got everything back my friend. I also just updated to 4.2.2 with SUS and it works too!!
Are you going to try my steps?
Click to expand...
Click to collapse
Cool ... Gr8 :good:
Still downloading BE .307
By the way which ver of backupTA u hv used?

shysparrow said:
Cool ... Gr8 :good:
Still downloading BE .307
By the way which ver of backupTA u hv used?
Click to expand...
Click to collapse
I have some old old version I guess but it is the only one that has never given me problems in backing up and restoring so long as my phone is rooted and busybox is installed. It has no version number or anything, its a really simple batch file.
I can pack it in a zip and sent it to you somehow if you need?

Kiko_1272 said:
I have some old old version I guess but it is the only one that has never given me problems in backing up and restoring so long as my phone is rooted and busybox is installed. It has no version number or anything, its a really simple batch file.
I can pack it in a zip and sent it to you somehow if you need?
Click to expand...
Click to collapse
That would be kind of u, if u can upload it for me and post me the link. thanks a lot :highfive:

shysparrow said:
That would be kind of u, if u can upload it for me and post me the link. thanks a lot :highfive:
Click to expand...
Click to collapse
Here you go:
https://www.box.com/s/3ka1rt9j99lp4s6ckhn9

Kiko_1272 said:
Here you go:
https://www.box.com/s/3ka1rt9j99lp4s6ckhn9
Click to expand...
Click to collapse
Thank u so much. Now lemme c if i can get my investment back :fingers-crossed:

shysparrow said:
Thank u so much. Now lemme c if i can get my investment back :fingers-crossed:
Click to expand...
Click to collapse
Haha, really hope it works out for you! :fingers-crossed:

Don't restore using some else's TA partition, it has to be the original one for you phone. Another user tried this and it totally bricked the phone.

Related

S1Boot (Bootloader) Update for Xperia T

Hey,
in latest firmware there is a update to S1Boot (to Version R10A21). I think most users who DONT USE PCC/SEUS will not have the update because Flashtool does not decrypt it correctly.
I packed it up into German Firmware, so if you are interested you can flash this Firmware and then just reflash ANY OTHER Firmware if you dont want to stay on German one. After S1Boot got updated it will stay updated no matter what Firmware you flash afterwards, becasue normally it is not included.
File can be downloaded here from my Firmware collection, directlink to Xperia T folder:
http://ul.to/f/2fvm79
Regards
Thanks for that. Do you know what's changed?
I just checked my version and it s R10A118
Sent from my Xperia T using XDA Premium
This is a small appreciation for all the effort you put in XPERIA devices.
Thank you Andreas,
Confirmation Number: 30X20729LD1118121
PS: I have some FTFs if you want me to upload them.
Check it out: http://forum.android.com.pl/f664/oprogramowanie-dla-sony-xperiaa-t-228936/
made by me
and here:
http://forum.android.com.pl/f664/oprogramowanie-dla-sony-xperiaa-tl-231457/
http://forum.android.com.pl/f664/oprogramowanie-dla-sony-xperiaa-tx-231469/
made by me
and this:
http://forum.android.com.pl/f562/oprogramowanie-dla-sony-xperiaa-s-231330/
http://forum.android.com.pl/f562/oprogramowanie-dla-sony-xperiaa-sl-226461/
made by me
http://forum.android.com.pl/f308/oprogramowanie-dla-sony-ericsson-xperiaa-arc-s-147007/
made by me
Hi Binary, Can I confirm that I can backup my current stock rom (7.0.A.3.195) using CWM recovery (advanced kernel v4), then flash this for S1 update, then (correct me if I am wrong please!) re-flash kernel and then restore rom via CWM: resulting in being back to my current rom but with S1 Boot update.
Also just check that I should use "Generic DE (S1Boot-Update).ftf" - is this the one you refer to in the OP.?
Thanks for your patience
I updated via PCCompanion and my boot is
R10A118
WHich "latest" version did you get the new boot from? And what is new in it?
Mine is R10A121 and it was flashed with Flashtool.
ludwikjonkisz said:
Check it out: http://forum.android.com.pl/f664/oprogramowanie-dla-sony-xperiaa-t-228936/
made by me
and here:
http://forum.android.com.pl/f664/oprogramowanie-dla-sony-xperiaa-tl-231457/
http://forum.android.com.pl/f664/oprogramowanie-dla-sony-xperiaa-tx-231469/
made by me
and this:
http://forum.android.com.pl/f562/oprogramowanie-dla-sony-xperiaa-s-231330/
http://forum.android.com.pl/f562/oprogramowanie-dla-sony-xperiaa-sl-226461/
made by me
http://forum.android.com.pl/f308/oprogramowanie-dla-sony-ericsson-xperiaa-arc-s-147007/
made by me
Click to expand...
Click to collapse
You included S1Boot Update too ?
[email protected] said:
Hi Binary, Can I confirm that I can backup my current stock rom (7.0.A.3.195) using CWM recovery (advanced kernel v4), then flash this for S1 update, then (correct me if I am wrong please!) re-flash kernel and then restore rom via CWM: resulting in being back to my current rom but with S1 Boot update.
Also just check that I should use "Generic DE (S1Boot-Update).ftf" - is this the one you refer to in the OP.?
Thanks for your patience
Click to expand...
Click to collapse
Yep should work
gregbradley said:
I updated via PCCompanion and my boot is
R10A118
WHich "latest" version did you get the new boot from? And what is new in it?
Click to expand...
Click to collapse
It is included inside the SEUS files for the 195 Version, but "problem" is that we need to update Flashtool so that it decrypts the File correctly. For now we only added the "alternate" decryption for Loader, now S1Boot seems to be updated too Which is quite good, maybe they add features in future like button for recovery
smardu said:
Mine is R10A121 and it was flashed with Flashtool.
Click to expand...
Click to collapse
Cool :good:
Regards
Seansmit17 said:
Thanks for that. Do you know what's changed?
I just checked my version and it s R10A118
Sent from my Xperia T using XDA Premium
Click to expand...
Click to collapse
Really no idea
Halim2k said:
This is a small appreciation for all the effort you put in XPERIA devices.
Thank you Andreas,
Confirmation Number: 30X20729LD1118121
PS: I have some FTFs if you want me to upload them.
Click to expand...
Click to collapse
Many many many many thanks Sure i would upload yours too if you like, but somehow i have to get them
Regards
Bin4ry said:
It is included inside the SEUS files for the 195 Version, but "problem" is that we need to update Flashtool so that it decrypts the File correctly.
Click to expand...
Click to collapse
Stage, I flagged 195 via official method not flash tool, so why did I not have the update?
now S1Boot seems to be updated too Which is quite good, maybe they add features in future like button for recovery
Regards
Click to expand...
Click to collapse
That's fantastic, really miss the option to reboot or reboot into recovery
Sent from my LT30p using xda premium
gregbradley said:
Stage, I flagged 195 via official method not flash tool, so why did I not have the update?
That's fantastic, really miss the option to reboot or reboot into recovery
Sent from my LT30p using xda premium
Click to expand...
Click to collapse
If you got it from PCC i dont know why you did not get it. Hope you did not understood me wrong. It is NOT implemented yet. I just hope that they WILL update is later on, with this possibility to update the S1Boot it would be possible from technical way
Regards
Bin4ry said:
If you got it from PCC i dont know why you did not get it. Hope you did not understood me wrong. It is NOT implemented yet. I just hope that they WILL update is later on, with this possibility to update the S1Boot it would be possible from technical way
Regards
Click to expand...
Click to collapse
Yes, I understand that, Can you check this firmware. Its the .ftf I made from my PCCompanion update. I dont know where to look to check the boot.
But i do get an update when i connect to pccompanion, allthough it gives me the same FW number, i thought that was strange but maybe its the new boot.
gregbradley said:
Yes, I understand that, Can you check this firmware. Its the .ftf I made from my PCCompanion update. I dont know where to look to check the boot.
But i do get an update when i connect to pccompanion, allthough it gives me the same FW number, i thought that was strange but maybe its the new boot.
Click to expand...
Click to collapse
Do your PCC Files are 3 or 4 Files? If your firmware includes the S1Boot update then it should be 4 Files!!
IT CAN BE that the branding firmwares does NOT include the S1Boot update, maybe that is the reason
Regards
Bin4ry said:
Do your PCC Files are 3 or 4 Files? If your firmware includes the S1Boot update then it should be 4 Files!!
IT CAN BE that the branding firmwares does NOT include the S1Boot update, maybe that is the reason
Regards
Click to expand...
Click to collapse
ok, I only used 3 largest files. The rest were all really small files. I will download again and make a new branded one...that way we will know if branded versions have the new boot.
I will get too it after I have eaten.
EDIT
Weird,
PCCompanion says my current version is 7.0.A.1.303, whilst my phone says I am on 7.0.A.3.195....lets see what happens
EDIT
Looks like i am getting 4 files, 3 downloaded already and still the big one to go....
gregbradley said:
ok, I only used 3 largest files. The rest were all really small files. I will download again and make a new branded one...that way we will know if branded versions have the new boot.
I will get too it after I have eaten.
EDIT
Weird,
PCCompanion says my current version is 7.0.A.1.303, whilst my phone says I am on 7.0.A.3.195....lets see what happens
Click to expand...
Click to collapse
Hehe.
The S1Boot is a FILE_XXXXXXX file with approx 330kb. But as i said Flashtool cannot decrypt now, it needs manual decryption.
Regards
Bin4ry said:
Hehe.
The S1Boot is a FILE_XXXXXXX file with approx 330kb. But as i said Flashtool cannot decrypt now, it needs manual decryption.
Regards
Click to expand...
Click to collapse
Check my second edit above, i do get that file now.
But guess what, (Like a noob) i forgot i cant use pccompanion anymore because of unlocked bootloader..D'oh
Anyway, any chance of instructions on how to manually decrypt it (Probably nothing simple) or if I send you the files can you incoorporate them into my .ftf so I can flash it?
I canthen also add a branded vodafobe version with the new boot to the ftf list.
Cheers
I need help to find out whish version S1Boot my lt30p has.
I tried to find the postet version numbers in the phone settings, I searched google, I installed SEUS .........
Nothing, I have no idea where you have the version numbers from.
harowa said:
I need help to find out whish version S1Boot my lt30p has.
I tried to find the postet version numbers in the phone settings, I searched google, I installed SEUS .........
Nothing, I have no idea where you have the version numbers from.
Click to expand...
Click to collapse
goto your dial pad and dial
*#*#7378423#*#*
then goto
service info>software info>
S1 Boot version is the third line down
OK, tutorial for those who want to update to the latest S1 boot.
You can check your s1 boot version by doing this
goto your dial pad and dial
*#*#7378423#*#*
then goto
service info>software info>
S1 Boot version is the third line down
Click to expand...
Click to collapse
Difficulty
Easy
Time taken
I did it in less than 10 minutes
1. Download one of the .ftf's from the OP that have the s1 boot update in title.
2. make a backup of your current rom
3. Download, install and set up flashtool. (Link in the all in one thread)
4. Drag and drop the .ftf into the open window of flashtool.
5. Tick all the boxes that say exclude except the one that says exclude uncategorized Check the attached image
6. Flash the .ftf following flashtool instructions
7. Reboot phone and check your s1 boot version, it should now be updated
8. Reboot into recovery and restore your backup.
9. You are now on the latest s1 boot with the same rom you had before.
EDIT
Alternative Method.
Flash this LT30_7.0.A.3.195_Generic DE (S1Boot-ONLY).ftf - 725.46 KB
(N.B. It is reported to relock your bootloader, just unlock it again if thats the case, info taken from this post)
I just removed all the unnecassary files from one of the .ftf's provided by Bin4ry
gregbradley said:
goto your dial pad and dial
#*#*7378423#*#*
then goto
service info>software info>
S1 Boot version is the third line down
Click to expand...
Click to collapse
*#*#7378423#*#*
is what you mean.

[Q] back from CM10 to stock Sony Xperia T

I have installed the CM10 of Cyanogenmod but I did not thought I would ever say this; I would like to go back to a stock Sony ROM. I miss the keyboard, the wifi-on-location, the Album app of Sony and more.
Is it possible to flash back to a stock Sony ROM and if yes, how do I do this? I think it would be simple since I have recovery installed of course. And, I live in the Netherlands, which shall I pick to restore?
I have tried with PC Companion but this says I cannot update it anymore. Probably because of the boot.img of CM10?
Thanks in advance!!!
Olaf
olafd72 said:
I have installed the CM10 of Cyanogenmod but I did not thought I would ever say this; I would like to go back to a stock Sony ROM. I miss the keyboard, the wifi-on-location, the Album app of Sony and more.
Is it possible to flash back to a stock Sony ROM and if yes, how do I do this? I think it would be simple since I have recovery installed of course. And, I live in the Netherlands, which shall I pick to restore?
I have tried with PC Companion but this says I cannot update it anymore. Probably because of the boot.img of CM10?
Thanks in advance!!!
Olaf
Click to expand...
Click to collapse
Just flash a stock FTF from your region. Or restore the backup you made before flashing cm10 (You did make a backup didnt you!)
Or flash any stock based kernel for your device and any stock based rom.
gregbradley said:
Just flash a stock FTF from your region. Or restore the backup you made before flashing cm10 (You did make a backup didnt you!)
Or flash any stock based kernel for your device and any stock based rom.
Click to expand...
Click to collapse
No I did not make a backup.... I thought PC Companion would just work fine for restoring. I will flash a FTF. Does it need to be a ROM from my region. And can I do so without flashing a kernel first?
Sh*t I feel stupid now....
olafd72 said:
No I did not make a backup.... I thought PC Companion would just work fine for restoring. I will flash a FTF. Does it need to be a ROM from my region. And can I do so without flashing a kernel first?
Sh*t I feel stupid now....
Click to expand...
Click to collapse
No, you can pick any ftf for your phone, but one for your region will be best. No you dont need a kernel as that will be included inthe ftf.
You wont be able to use PCCOmpanion anymore as you have unlocked the bootloader.
gregbradley said:
No, you can pick any ftf for your phone, but one for your region will be best. No you dont need a kernel as that will be included inthe ftf.
You wont be able to use PCCOmpanion anymore as you have unlocked the bootloader.
Click to expand...
Click to collapse
Thanks for all your help. I have downloaded the LT30p_7.0.A.3.195_Vodafone.ftf and placed in my Firmwares folder. When I start the flashtool, the source folder is correct, but the FTF is not displayed. How is this possible?
Don't worry, it is there. That dialogue box just confirms the folder, when you click ok the ftf's that are in that filler are displayed in flashtool
Or you can just drag and drop it into the open window of flashtool.
You will not be able to update from PC companion again because you have unlocked your bootloader
Sent from my LT30p xda premium app.
How do I customise the signature on xda premium app?
gregbradley said:
Don't worry, it is there. That dialogue box just confirms the folder, when you click ok the ftf's that are in that filler are displayed in flashtool
Or you can just drag and drop it into the open window of flashtool.
You will not be able to update from PC companion again because you have unlocked your bootloader
Sent from my LT30p xda premium app.
How do I customise the signature on xda premium app?
Click to expand...
Click to collapse
The earlier mentioned FTF was not working, now flashing LT30p_7.0.A.3.195_Vodafone..... :silly:
Thanks again for your help!!!! It seems to be working again! Am I now getting the latest updates of Sony/Google again?
Strange, with my X10 and all other phones, I hated the Sony firmware. Now I actually missed it and think the default is fine for me! Great job Sony?! :laugh::good:
olafd72 said:
Thanks again for your help!!!! It seems to be working again! Am I now getting the latest updates of Sony/Google again?
Strange, with my X10 and all other phones, I hated the Sony firmware. Now I actually missed it and think the default is fine for me! Great job Sony?! :laugh::good:
Click to expand...
Click to collapse
Wanna trade your T with mine which is not unlockable? hahaha
Am I now getting the latest updates of Sony/Google
Click to expand...
Click to collapse
No. Unlocked bootleggers won't receive official updates. However you will still be able to download the files then create your own ftf with the help of the instructions in the ask in one thread.
If not, then people will upload updated ftf's that you can flash
And no need to say thanks, just hit the button if you feel the need to thank someone
Sent from my LT30p xda premium app.
How do I customise the signature on xda premium app?

[Q] Stuck on Sony logo

Hi guys
I tried changing the 3 icons down the bottom and it all went horribly wrong. Basically I'm stuck at the phone booting onto the Sony sign and just staying on that.
I have read and read and read and this is a last resort. I've downloaded the Flashtool and ftf for Three Uk handset but flashtool starts and I am met by the error - No loader found for this device.
Any help guys?
Thanks
Did you make a backup in CWM before you flashed the navbar mod?
Sent from my C6603 using xda app-developers app
jbaggs said:
Hi guys
I tried changing the 3 icons down the bottom and it all went horribly wrong. Basically I'm stuck at the phone booting onto the Sony sign and just staying on that.
I have read and read and read and this is a last resort. I've downloaded the Flashtool and ftf for Three Uk handset but flashtool starts and I am met by the error - No loader found for this device.
Any help guys?
Thanks
Click to expand...
Click to collapse
What version of Flashtool do you have?
adamsweeting said:
Did you make a backup in CWM before you flashed the navbar mod?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Hi Adam thanks for the reply. I know this is a schoolboy error but no I didn't. I didn't have CWM installed, my bootloader is locked but I had root so managed to install TWRP but like an idiot didn't make a backup.
I was confident the flashtool would fix but I'm getting this "no loader found" error message.
shadowboy23 said:
What version of Flashtool do you have?
Click to expand...
Click to collapse
Hi there
I have Mac Edition - v0.9.10.1, is there a newer version and might this be the problem?
cheers for the reply
jbaggs said:
Hi there
I have Mac Edition - v0.9.10.1, is there a newer version and might this be the problem?
cheers for the reply
Click to expand...
Click to collapse
Yes there is the one in my sig. It's a beta version but it works really well and have used many times on my XZ. Maybe you can use that to flash back to stock and get out of being stuck on the Sony logo.
I know it's a pain but since you don't have any backup and stuck at the logo, you have nothing to lose.
shadowboy23 said:
Yes there is the one in my sig. It's a beta version but it works really well and have used many times on my XZ. Maybe you can use that to flash back to stock and get out of being stuck on the Sony logo.
I know it's a pain but since you don't have any backup and stuck at the logo, you have nothing to lose.
Click to expand...
Click to collapse
YOU ABSOLUTE LEGEND!
This worked, thank you so much. Backups from now on. Thanks for the help guys.
Glad to hear it worked for you.

after the update...

Hello there,
After i updated with NUTS release, the update pops up again even tho i updated it. What could possibly be the problem?
Any help is greatly appreciate it. Thanks in advance
samircali said:
Hello there,
After i updated with NUTS release, the update pops up again even tho i updated it. What could possibly be the problem?
Any help is greatly appreciate it. Thanks in advance
Click to expand...
Click to collapse
is your bootloader unlocked???
if its thats the problem if not just reflash the newest firmware available for your device
TheHunk_2 said:
is your bootloader unlocked???
if its thats the problem if not just reflash the newest firmware available for your device
Click to expand...
Click to collapse
No, my boatloader is not unlocked. It shows that i have the 4.4.4 installed in my setings. Do i have to flash the ftf file again. I dunno what to do.
samircali said:
No, my boatloader is not unlocked. It shows that i have the 4.4.4 installed in my setings. Do i have to flash the ftf file again. I dunno what to do.
Click to expand...
Click to collapse
what is your device model number?
c6903 ,c6902 or what?
TheHunk_2 said:
what is your device model number?
c6903 ,c6902 or what?
Click to expand...
Click to collapse
My device mobile number is C6903. Is there hope to fix this. Maybe NUT uploaded the wrong ftf or the flashible zip.
samircali said:
My device mobile number is C6903. Is there hope to fix this. Maybe NUT uploaded the wrong ftf or the flashible zip.
Click to expand...
Click to collapse
Every problem can be solved.BUT DEATH :laugh:
Im c6903 too. im not having this problem im on this firmware http://dfiles.ru/files/tqsgjp29m
download it check your pc for the drivers and stuff and flash it .Don't forget to wipe the appslog cache and data
if still having the same problem then this is your best shot http://www.xperiablog.net/2014/08/0...rtified-for-xperia-z1-z-ultra-and-z1-compact/
TheHunk_2 said:
Every problem can be solved.BUT DEATH :laugh:
Im c6903 too. im not having this problem im on this firmware http://dfiles.ru/files/tqsgjp29m
download it check your pc for the drivers and stuff and flash it .Don't forget to wipe the appslog cache and data
if still having the same problem then this is your best shot http://www.xperiablog.net/2014/08/0...rtified-for-xperia-z1-z-ultra-and-z1-compact/
Click to expand...
Click to collapse
Is it with root or without root
You don't need root to flash the firmware just search abour it in Google you'll find everything you need.
TheHunk_2 said:
You don't need root to flash the firmware just search abour it in Google you'll find everything you need.
Click to expand...
Click to collapse
Yes, but I dont want to lose root. My phone is rooted with NUTS version since the beginning. This is the first time Im getting this problem.
Thanks anyway
samircali said:
Yes, but I dont want to lose root. My phone is rooted with NUTS version since the beginning. This is the first time Im getting this problem.
Thanks anyway
Click to expand...
Click to collapse
flash the firmware then root it with easyrooting kit and towlroot

C6903 - Baseband Unknown Fix

Hi Experts,
I have searched the forum and after flashing for three sleepless nights, I am still struck with the unknown baseband issue.
The details are:
C6903
BL Unlocked & now its locked using Flashtool (DRM or TA backup is unavailable )
Currently the phone is struck in boot loop in .534
Used Flashtool ver. 0.9.22.3 & 0.9.18.6
Latest EMMA & Xperia Companion
My phone hanged when listening to the music and when I force restarted the unknown baseband showed up. While flashing I got the baseband back after flashing .518 however it hanged again after two days and I lost the BB
Now I am struck in boot loops on .534 and .518 both. I can boot into .290 successfully. Can someone please guide me to the correct method of restoring my IMEI permanently.
P.S. As per my short experience with C6903, I believe something stops the boot of .534 and .518 after first boot. Means I was not able to boot into .534 but accidentally when I flashed .518, my phone booted successfully. However now I am unable to boot into .518. May be I am missing the piece of puzzle that an expert can provide.
Thanks in advance~
D-r-e-a-m-e-r said:
Hi Experts,
I have searched the forum and after flashing for three sleepless nights, I am still struck with the unknown baseband issue.
The details are:
C6903
BL Unlocked & now its locked using Flashtool (DRM or TA backup is unavailable )
Currently the phone is struck in boot loop in .534
Used Flashtool ver. 0.9.22.3 & 0.9.18.6
Latest EMMA & Xperia Companion
Thanks in advance~
Click to expand...
Click to collapse
hi , read here and try reflash use [NUT]'s 14.1.G.1.534 FTF , hope its help.
iedafarha said:
hi , read here and try reflash use [NUT]'s 14.1.G.1.534 FTF , hope its help.
Click to expand...
Click to collapse
Thanks for your tip but I have already tried and still get struck in bootloop.
No .534 FTF has booted until now and I have used 6 of them already...
An update is that I have rooted 4.4.4 and installed recovery...
can someone tell me where can I get .534 zip to flash as the files I have are giving me verification error on TWRP.
Thanks in advance...
I have tried to use NUT fix but the files are not available for downloading.
I would really appreciate if someone can direct me to the correct path. I am almost giving up now...
http://forum.xda-developers.com/showthread.php?t=2687443
D-r-e-a-m-e-r said:
I have tried to use NUT fix but the files are not available for downloading.
I would really appreciate if someone can direct me to the correct path. I am almost giving up now...
http://forum.xda-developers.com/showthread.php?t=2687443
Click to expand...
Click to collapse
May be file deleted , other options you can create flash zip using PRFCreator , search and download ftf file from here .
iedafarha said:
May be file deleted , other options you can create flash zip using PRFCreator , search and download ftf file from here .
Click to expand...
Click to collapse
Hi again, Really appreciate your help.
I have tried flashing a number of files but still in vain. What I really can't understand is .518 was the last 4.2.2 rom that booted successfully on my phone and brought my baseband back. Now .534 and .518 are both ending in a bootloop at Sony animation Really driving me crazy...
As a side note, can you tell me if the modem files in the link below are useful for this issue?
https://github.com/SonyAosp/vendor_qcom_firmware/tree/n/honami/C6903
By the way I am really amazed with the Z1 ability to handle abuse that I have thrown at it during the last 2 weeks
Changing phone is not an option for me right now. Using Nokia 1100 after a long time seems very uncomfortable and can't do it for long
D-r-e-a-m-e-r said:
By the way I am really amazed with the Z1 ability to handle abuse that I have thrown at it during the last 2 weeks
Changing phone is not an option for me right now. Using Nokia 1100 after a long time seems very uncomfortable and can't do it for long
Click to expand...
Click to collapse
Anyone please...
Experts plzzz...
D-r-e-a-m-e-r said:
Experts plzzz...
Click to expand...
Click to collapse
I am still looking for a solution to install JB without bootloop
Bump...
D-r-e-a-m-e-r said:
I am still looking for a solution to install JB without bootloop
Click to expand...
Click to collapse
Lol why jb. Don't you want KitKat lollipop??
Heck even nougat with unlocked bootloader
gauravbhakuni90 said:
Lol why jb. Don't you want KitKat lollipop??
Heck even nougat with unlocked bootloader
Click to expand...
Click to collapse
I need to fix my baseband issue. That can only be done with JB.
D-r-e-a-m-e-r said:
I need to fix my baseband issue. That can only be done with JB.
Click to expand...
Click to collapse
You can flash Baseband even from lollipop ftf.
gauravbhakuni90 said:
You can flash Baseband even from lollipop ftf.
Click to expand...
Click to collapse
Thx for the tip but its not working.
My SIm was only detected once thats when I installed .518 but it lasted for a day and got held. When I force restarted the phone it was again missing baseband.
Now it isnt booting into .518 or .534.
Experts am I asking something that is un-do-able...
Guys shall I give up fixing this phone
I loved this dead beauty...
Hi, tried to flash with different cables as I don't have Sony original cable with me but the results are still the same. No luck with .534 and baseband is still unknown...
I understand this is a free community and people are free to determine if they wanna help someone or not. However I just wanna know if this is repairable or shall I just forget about repairing it. Any inputs will be highly appreciated.
D-r-e-a-m-e-r said:
Hi, tried to flash with different cables as I don't have Sony original cable with me but the results are still the same. No luck with .534 and baseband is still unknown...
I understand this is a free community and people are free to determine if they wanna help someone or not. However I just wanna know if this is repairable or shall I just forget about repairing it. Any inputs will be highly appreciated.
Click to expand...
Click to collapse
I have realized that the phone does not shuts down with the power button in any bootable rom. Also sometimes the baseband does appear soon after installation but it disappears as sim is inserted. Can someone plz help me understand whats going wrong. I really love this phone...

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