Downgrade from stock 4.2.2 to 4.1.2 - Xperia Tablet Z Q&A, Help & Troubleshooting

Since 4.2.2 for the LTE version is out now, has anyone tried downgrading back to 4.1.2 via FTF file and flashtool?
Does that work properly?

nex86 said:
Since 4.2.2 for the LTE version is out now, has anyone tried downgrading back to 4.1.2 via FTF file and flashtool?
Does that work properly?
Click to expand...
Click to collapse
Yes
Followed these instructions: http://forum.xda-developers.com/showthread.php?t=2325990
Everything went fine, only thing i noticed is that I lost all data including the HD pics and vids the tablet had when i bought it.

Thanks.
I have SGP311 and already made my own FTF file, my question was just if there will be any problems with the bootloader etc..

nex86 said:
Thanks.
I have SGP311 and already made my own FTF file, my question was just if there will be any problems with the bootloader etc..
Click to expand...
Click to collapse
How did you make your own FTF?
Sent from my SCH-I605 using XDA Premium HD app

Related

[Q] Touch screen problem

I have a problem with my xperia mini. I have changed many roms. The final rom i tried worked fine but when i got back to hybrom the touch screen wasn working only the hard keys are working i tried to change rom again but its the same. Does anyone now how to fix this
@^James26 said:
I have a problem with my xperia mini. I have changed many roms. The final rom i tried worked fine but when i got back to hybrom the touch screen wasn working only the hard keys are working i tried to change rom again but its the same. Does anyone now how to fix this
Click to expand...
Click to collapse
Do you do a full wipe?
Sent from my WT19i using xda premium
Please hit the thanks button if I helped
Installing incorrect ROM version caused this problem, for example installing Mini Pro(SK17) when you actually have Mini(ST15).
xdevilium said:
Do you do a full wipe?
Sent from my WT19i using xda premium
Please hit the thanks button if I helped
Click to expand...
Click to collapse
Yes i did everything i know but i could not fix it
Someguyfromhell said:
Installing incorrect ROM version caused this problem, for example installing Mini Pro(SK17) when you actually have Mini(ST15).
Click to expand...
Click to collapse
I think something like that happend. I was about to instal nero droid rom and i think i pressed buy mistake sk17i. Can i do something to fix this?
......
+1
Get back to the original ROM using SEUS or flashtool. I think that could help.
cing01 said:
Get back to the original ROM using SEUS or flashtool. I think that could help.
Click to expand...
Click to collapse
i cant do it with SEUS cause i have unlocked bl. I have tried to relock it but nothing happens. I have tried the original rom 4.0.A.2.368 but still doesnt work
Install stock firmware, lock bootloader and try SUS. Which way did you unlock?
Sent from my Xperia Live using xda premium
@^James26 said:
i cant do it with SEUS cause i have unlocked bl. I have tried to relock it but nothing happens. I have tried the original rom 4.0.A.2.368 but still doesnt work
Click to expand...
Click to collapse
Flash stock 62fm with flashtool. Relock bootloader and repair phone with pc companion. Flash stock 62fm again with flashtool.. It worked for me.
Someguyfromhell said:
Install stock firmware, lock bootloader and try SUS. Which way did you unlock?
Sent from my Xperia Live using xda premium
Click to expand...
Click to collapse
i tried to relock it with ftf file
pallavikv said:
Flash stock 62fm with flashtool. Relock bootloader and repair phone with pc companion. Flash stock 62fm again with flashtool.. It worked for me.
Click to expand...
Click to collapse
can you send me a link to download 62fm?
@^James26 said:
can you send me a link to download 62fm?
Click to expand...
Click to collapse
"fm" stands there for firmware. To download stock firmware, check the links in signature, I have uploaded some of them there.
Someguyfromhell said:
"fm" stands there for firmware. To download stock firmware, check the links in signature, I have uploaded some of them there.
Click to expand...
Click to collapse
I know that fm meens firmware. Is there any other way to relock bootloader?
@^James26 said:
I know that fm meens firmware. Is there any other way to relock bootloader?
Click to expand...
Click to collapse
Look in my tutorial, link in signature, guide there depending how you have unlocked it.
Sent from my Xperia Live using xda premium
Someguyfromhell said:
Look in my tutorial, link in signature, guide there depending how you have unlocked it.
Sent from my Xperia Live using xda premium
Click to expand...
Click to collapse
Even with s1 tool the bootloader is still unlocked i have unlocked bootloader from here http://unlockbootloader.sonymobile.com/
@^James26 said:
Even with s1 tool the bootloader is still unlocked i have unlocked bootloader from here http://unlockbootloader.sonymobile.com/
Click to expand...
Click to collapse
If you unlocked the official way, then use the Relock_bootloader.ftf file and flash it via Flashtool.
If you didn't use S1Tool, then don't use it now either.
Someguyfromhell said:
If you unlocked the official way, then use the Relock_bootloader.ftf file and flash it via Flashtool.
If you didn't use S1Tool, then don't use it now either.
Click to expand...
Click to collapse
i have tried this too. I have flased it with flash tool but its still unlocked and when i tried to flash it with s1 tool it said Fatal error
.......
pallavikv said:
Flash stock 62fm with flashtool. Relock bootloader and repair phone with pc companion. Flash stock 62fm again with flashtool.. It worked for me.
Click to expand...
Click to collapse
Doesn't work with me

T-Mobile US P769/BK Radio

This is a CWM flashable I created to update the radio on the T-Mobile US P769 to L6260_MODEM_SIC_01.1232.00 for the new Jellybean update.
I have tested it on three different devices and all showed results.
Edit: It is confirmed that this radio will also function with CM10.1 for the P769BK
This is not needed if you have taken the OTA update and it applied successfully. This is only needed if you used the CWM work around because you were unable to get the OTA update. Find here. When I used the CWM method to update the radio did not take so I created this. Your mileage may very.
It does take awhile to process allow the file to run. Make sure your device has a charge.
Required: Root with CWM recovery find artas182x CWM here. Will function on a locked BL.
Again this is for the T-Mobile US P769. I am not responsible if you brick your phone.
MD5: 7bbea730f038cfea3aaab90f9463c95a
To help the old baseband version was L6260_MODEM_SIC_01.1233.00 based on 10g.
I tried OTA 3 times, all failed with android/red triangle, so I use CWM to upgrade v20d.
My Baseband version shows L6260_MODEM_SIC_01.1232.00.
Do I have the same version as this one? If so, I do not need to flash this zip file.
Thanks!
qingz said:
I tried OTA 3 times, all failed with android/red triangle, so I use CWM to upgrade v20d.
My Baseband version shows L6260_MODEM_SIC_01.1232.00.
Do I have the same version as this one? If so, I do not need to flash this zip file.
Thanks!
Click to expand...
Click to collapse
Check in "Settings"-->"About Phone"-->"Baseband version".
It should show this if you have the V20D radio: LGP769AT-00-V20d-TMO-US-MAR-16-2013
kevev said:
Check in "Settings"-->"About Phone"-->"Baseband version".
It should show this if you have the V20D radio: LGP769AT-00-V20d-TMO-US-MAR-16-2013
Click to expand...
Click to collapse
Are you sure about that? I upgraded thru OTA and my baseband is completely different. L6260_modem_sic_01.1232.00 to be exact.
Sent from my LG-P769 using xda premium
Tablechair said:
Are you sure about that? I upgraded thru OTA and my baseband is completely different.
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
Well I flashed the zip in this thread. What does your version show?
Never mind it must just be how they made the zip. Shouldn't it be consistent with the OTA?
Sent from my LG-P769 using xda premium
Tablechair said:
Never mind it must just be how they made the zip. Shouldn't it be consistent with the OTA?
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
Yes it should. What does your baseband say? What ROM are you on?
Tablechair said:
L6260_modem_sic_01.1232.00 to be exact.
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
V20D
Sent from my LG-P769 using xda premium
Tablechair said:
V20D
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
Is that all that it says in the about phone screen?
My device is running CM 10.1 . Maybe that is why it shows the long version name.
P76920d is exact under software version.
Sent from my LG-P769 using xda premium
Tablechair said:
Are you sure about that? I upgraded thru OTA and my baseband is completely different. L6260_modem_sic_01.1232.00 to be exact.
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
Still on ICS and have L6260_MODEM_SIC_01.1233.00
dkouzou said:
Still on ICS and have L6260_MODEM_SIC_01.1233.00
Click to expand...
Click to collapse
You should re-read the original post. 1232 it's for jb Rom. Doesn't work well with 1233.
Sent from my LG-P769 using xda app-developers app
sleepingturtle said:
1232 it's for jb Rom. Doesn't work well with 1233.
Click to expand...
Click to collapse
I don't get it. Isn't 1233 newer than 1232? And JB is newer than ICS. Logically, 1232 would be ICS and 1233 would be JB. That's not right?
I just wanted to say that I followed what you said in the OP and it worked flawlessly. Thanks!
customized signature
kimtyson said:
I don't get it. Isn't 1233 newer than 1232? And JB is newer than ICS. Logically, 1232 would be ICS and 1233 would be JB. That's not right?
Click to expand...
Click to collapse
Logically it makes no sense but this is indeed how LG named them.
I installed this but went back to ics. How do I go back to the 1233 ics baseband version?
Sent from my LG-P769 using xda app-developers app
@infinityhombre where can I get a flashable zip of the ics 1233 radio? I flashed a clean rooted backup but I still have the jb radio
Sent from my LG-P769 using xda-developers app
Latest radio, same instructions as in OP
bed5cb94da7d0ddaab2ee94ff4875724 L6260_MODEM_SIC_01.1305.zip
infinityhombre said:
This is a CWM flashable I created to update the radio on the T-Mobile US P769 to L6260_MODEM_SIC_01.1232.00 for the new Jellybean update.
I have tested it on three different devices and all showed results.
Edit: It is confirmed that this radio will also function with CM10.1 for the P769BK
This is not needed if you have taken the OTA update and it applied successfully. This is only needed if you used the CWM work around because you were unable to get the OTA update. Find here. When I used the CWM method to update the radio did not take so I created this. Your mileage may very.
It does take awhile to process allow the file to run. Make sure your device has a charge.
Required: Root with CWM recovery find artas182x CWM here. Will function on a locked BL.
Again this is for the T-Mobile US P769. I am not responsible if you brick your phone.
MD5: 7bbea730f038cfea3aaab90f9463c95a
To help the old baseband version was L6260_MODEM_SIC_01.1233.00 based on 10g.
Click to expand...
Click to collapse
I'm trying to do the same for P760. I extracted LGP760_CP.fls from kdz using this tool but I don't understand why there are 4 .fls files in your zip. Am I missing something? Could you help me?
PreemPalver said:
I'm trying to do the same for P760. I extracted LGP760_CP.fls from kdz using this tool but I don't understand why there are 4 .fls files in your zip. Am I missing something? Could you help me?
Click to expand...
Click to collapse
The 4 fls came from the OTA.zip.
You might be able to get them by downgrading and waiting for the ota update zip to pop up.
Sent from my LGMS769 using XDA Premium 4 mobile app

[Q] After Unrooting.....

Hi,
I have root my I9205 after I bought it three months ago. (I just root it nothing more)
Now I want to upgrade the stock rom (coz there are some minor problems)
Will I be able to upgrade the Stock ROM (OTA) after unrooting my I9205??
Anything else I need to consider??
Many thx!!
Have you tried OTA yet?? Even being rooted???
Sent from my GT-I9205 using xda app-developers app
It say that my phone had been modified OTA cannot be applied
jimmbomb said:
Have you tried OTA yet?? Even being rooted???
Sent from my GT-I9205 using xda app-developers app
Click to expand...
Click to collapse
AFAIK OTA after rooting is not possible. Phone has to be 'virgin' stock to have possibility to upgrade by OTA.
Just flash the latest stock Rom, this will update and unroot all in one go.
Kangburra said:
Just flash the latest stock Rom, this will update and unroot all in one go.
Click to expand...
Click to collapse
Thx brother I will give it a try!

C6806 - 14.3.a.0.681 us ftf

Whats up guys. I have made a US C6806 FTF file from my most recent 4.4.2 update. It is flashed the same way all the other FTF's are.
This is a fully stock FTF, it is exactly the same as what you would otherwise download with your PC Companion System Update.
Here is the link!! https://drive.google.com/file/d/0B5W8Ylg2cEfmMGlQbU9tSlQ4WWM/edit?usp=sharing
NOTE: This is not for the GPE Edition C6806, this is for the Sony Version only.
pedal2themedal said:
Whats up guys. I have made a US C6806 FTF file from my most recent 4.4.1 update. I will be uploading it here shortly. It is flashed the same way all the other FTF's are.
Click to expand...
Click to collapse
4.4.1? Uhm..
Sent from my C6833 using xda app-developers app
Waiting patiently
Sent from my C6833 using XDA Premium HD app
Flashing it now, if it works it will be posted in about 3-4hrs (at work now and the internet sucks)
Edit: Flashed and it booted right up!! Will actually have it posted a bit sooner I think, upload is at 15%
Link is up!!
This recovery and root method also works like a charm, http://forum.xda-developers.com/showthread.php?t=2687549
Works in c6802?
Sent from my C6833 using xda app-developers app
madsponge26 said:
Works in c6802?
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
It should....try it out, just make sure that you have a backup just in case
Downloading it now! Gotta make a backup of my GPE rom then I'll be flashing this guy to see what's up!
madsponge26 said:
Works in c6802?
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
andino said:
Downloading it now! Gotta make a backup of my GPE rom then I'll be flashing this guy to see what's up!
Click to expand...
Click to collapse
For a stock rom, it doesn't get much better than this. You can hide system icons, re sizable grid for the sony launcher, not to mention the themes. I will be making a blacked out them for this soon as the white settings bugs me.
Downloaded and installed no issues on my 6806. Thanks for the upload!
andino said:
Downloaded and installed no issues on my 6806. Thanks for the upload!
Click to expand...
Click to collapse
Awesome, I also noticed that the recovery that is linked in that rooting/recovery thread is old. I would suggest using the newest version as you could have issues when using an older one.
pedal2themedal said:
Awesome, I also noticed that the recovery that is linked in that rooting/recovery thread is old. I would suggest using the newest version as you could have issues when using an older one.
Click to expand...
Click to collapse
Yeah I used this one
http://forum.xda-developers.com/showthread.php?t=2687549
andino said:
Yeah I used this one
http://forum.xda-developers.com/showthread.php?t=2687549
Click to expand...
Click to collapse
I'll wait for the Rooted version of the ROM. Can't wait.
I'm rooted with original 4.4.2 build.
Is there a list of changes associated with this build somewhere.
Is this build worthwhile flashing?
if ou flash but leave the dual kernel in place......will you preserve root?
Thanks
rockky said:
I'm rooted with original 4.4.2 build.
Is there a list of changes associated with this build somewhere.
Is this build worthwhile flashing?
Thanks
Click to expand...
Click to collapse
This is just a fully stock FTF for those who want to flash via flashtool rather than using sony pc companion. Main benefit of this is your bootloader does not have to be locked to install.
thanks, so confirming, this isnt an upgrade from my original gpe build then?
pedal2themedal said:
This is just a fully stock FTF for those who want to flash via flashtool rather than using sony pc companion. Main benefit of this is your bootloader does not have to be locked to install.
Click to expand...
Click to collapse
rockky said:
thanks, so confirming, this isnt an upgrade from my original gpe build then?
Click to expand...
Click to collapse
This is not a GPE rom, it is the stock c6806 sony rom that just came out.
Flashing this to a GPe will end WITH A BRICK
Sent from my C6833 using Tapatalk
You use "stock c6806". I'm confused. Is not the c6806 the Gpe edition?
pedal2themedal said:
This is not a GPE rom, it is the stock c6806 sony rom that just came out.
Click to expand...
Click to collapse
rockky said:
You use "stock c6806". I'm confused. Is not the c6806 the Gpe edition?
Click to expand...
Click to collapse
Technically yes, but the answer is no. The GPE is a variant of the C6806, but it's bootloaders are completely different trust me, i hard bricked my old phone testing that theory, lol.

C6833 LTE Europe 14.3.A.0.757 ftf

Here is ftf for C6833 LTE Europe 14.3.A.0.757
https://copy.com/GzArn8qILOoY
md5
E4345058E7B594EB23E754041594C13C
chemcup said:
Here is ftf for C6833 LTE Europe 14.3.A.0.757
https://copy.com/GzArn8qILOoY
md5
E4345058E7B594EB23E754041594C13C
Click to expand...
Click to collapse
thanks.. how have you made the firmware ftf from your phone?
Hmmm.... it includes root?
Cristi95 said:
thanks.. how have you made the firmware ftf from your phone?
Click to expand...
Click to collapse
just download the update using sony PCC.
arceles said:
Hmmm.... it includes root?
Click to expand...
Click to collapse
no jut ftf
arceles said:
Hmmm.... it includes root?
Click to expand...
Click to collapse
You can easily root it by flashing Jackie's 681 kernel. I just did it myself and it works great.
From me. Sorry.
Hello. I have installed this firmware but the front camera in C6833 still don't work. Can anybady help? I have installed a clean instalation with full wipe with root and recovery.
LordManhattan said:
You can easily root it by flashing Jackie's 681 kernel. I just did it myself and it works great.
Click to expand...
Click to collapse
that is .681 kernal. wouldn't .757 kernal be more updated/ improved from bugs&fixes?
corrado85 said:
that is .681 kernal. wouldn't .757 kernal be more updated/ improved from bugs&fixes?
Click to expand...
Click to collapse
Yes, but for 'now' (at the time the post was written) it's the best we had for root. In jackie099's thread there is an updated 757 version by ChillyChan
Can i flash it without wiping data? Thanks
Sent from my C6833 using xda app-developers app
soncarl said:
Can i flash it without wiping data? Thanks
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
Yes you can, you could even flash it while standing on you head. Whether either will have beneficial effects is an different question completely.
To answer the new question: it will most probably work with out issue (I would guess that it's more likely to work if you are standing on your head)
Is the link down? Copy opens up, but no files for downloading

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