[Q] Xperia Z downgrade issue - Xperia Z Q&A, Help & Troubleshooting

Hey guys,I'm currently running Xperia Z on Android 4.4.2.It's has all this problems people have been talking about so I'm thinking of downgrading it back to JB 4.3.Any ideas how?.Thanks guys :good:

iosslayer said:
Hey guys,I'm currently running Xperia Z on Android 4.4.2.It's has all this problems people have been talking about so I'm thinking of downgrading it back to JB 4.3.Any ideas how?.Thanks guys :good:
Click to expand...
Click to collapse
download 4.3 ftf and flash it using flashtool

Is there a step by step instructions on how to downgrade from 4.4.2 to 4.3?
Sent from my LT30p using xda premium

XDA00000 said:
Is there a step by step instructions on how to downgrade from 4.4.2 to 4.3?
Sent from my LT30p using xda premium
Click to expand...
Click to collapse
use the search box in forum.

Related

is it possible to root the xperia tx 4.2.2

I am wondering if I should update my xperia tx 4.1.2 rooted to the latest 4.2.2 version
is it possible to root the 4.2.2 ? OTA update for some reason is not working with my device with the super user ota survival function is checked
Thanks for your help
Question is there 4.2.2 for TX right now?
Sent from my LT25i using xda premium
Yes , ota update has roll out in Hong kong
televisible said:
Yes , ota update has roll out in Hong kong
Click to expand...
Click to collapse
ru sure it is 4.2.2?
What!!? Really? Please post ota notification screen shot.
Sent from my LT29i using xda app-developers app
Its still 4.1.2.. Not 4.2.2
Sent from my LT29i using xda premium
I thought it was 4.2.2 , thanks for correcting me . Still I would like to know will rooting work on it .it's build nos is 9.1.B.1.67
televisible said:
I thought it was 4.2.2 , thanks for correcting me . Still I would like to know will rooting work on it .it's build nos is 9.1.B.1.67
Click to expand...
Click to collapse
Yup it can be rooted.. try to search on doomlord thread..
here is the link http://forum.xda-developers.com/showthread.php?p=42813428
Sent from my LT29i using xda premium
icebxboy said:
Yup it can be rooted.. try to search on doomlord thread..
here is the link http://forum.xda-developers.com/showthread.php?p=42813428
Sent from my LT29i using xda premium
Click to expand...
Click to collapse
root does not work , my phone keep restarting after the root,
televisible said:
root does not work , my phone keep restarting after the root,
Click to expand...
Click to collapse
Try to read on doomlords comment about that issue on the thread..
Sent from my LT29i using xda premium

Firmware version does effect?

Hey guys
I have firmware
10.11.a.1.253
Its android 4.1.2 i want to install 4.2.2 rom so its firmware 10.11.a.1.423 , its posiible to flash directly 4.2.2 rom on my phone? Or first i have to upgrade the firmware? If so how i can upgrade firmware??
Thank u very much
Sent from my HTC One using xda app-developers app
Jwtiyar said:
Hey guys
I have firmware
10.11.a.1.253
Its android 4.1.2 i want to install 4.2.2 rom so its firmware 10.11.a.1.423 , its posiible to flash directly 4.2.2 rom on my phone? Or first i have to upgrade the firmware? If so how i can upgrade firmware??
Thank u very much
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
Hi,
u have to update to 4.2.2 stock firmware before flashing 4.2.2 rom! You can do this by flashing 4.2 Stock Firmware to your device using flash tool. You can find stock firmware here at xda.
Jwtiyar said:
Hey guys
I have firmware
10.11.a.1.253
Its android 4.1.2 i want to install 4.2.2 rom so its firmware 10.11.a.1.423 , its posiible to flash directly 4.2.2 rom on my phone? Or first i have to upgrade the firmware? If so how i can upgrade firmware??
Thank u very much
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
Not a chance, wouldn't boot. You need to update to 4.2.2 firmware first.
Jwtiyar said:
Hey guys
I have firmware
10.11.a.1.253
Its android 4.1.2 i want to install 4.2.2 rom so its firmware 10.11.a.1.423 , its posiible to flash directly 4.2.2 rom on my phone? Or first i have to upgrade the firmware? If so how i can upgrade firmware??
Thank u very much
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
Is 100% not possible. Both are different version. Merely jump from 4.1 to 4.2 without system apps, related files of 4.2 will get you nowhere. Make sure full wipe before flashing downloaded 4.2 stock rom. Good luck and cheers
Whitefang
Sent from my GT-N7100 using xda app-developers app
Yes you can with a unlocked bootloader, flash a 4.2.2 kernel (dooms) and then flash custom 4.2.2 rom with full wipe this will give you your system files needed and kernel will recognise it and then boot
Sent from my C6603 using xda premium
Where did the OP even mention custom roms? His post says he is on 253 and wants to be on 423.
It's entirely possible to directly update from 253 stock to 423 stock. One of the simplest ways is to use flashtool.
http://forum.xda-developers.com/showthread.php?t=2240614
Just grab a 423 ftf from the general section and follow the instructions in the thread.
Sent from my C6603 using Tapatalk 2
Thank you very much guys .
Sent from my HTC One using Tapatalk 4 Beta
kingvortex said:
Where did the OP even mention custom roms? His post says he is on 253 and wants to be on 423.
It's entirely possible to directly update from 253 stock to 423 stock. One of the simplest ways is to use flashtool.
http://forum.xda-developers.com/showthread.php?t=2240614
Just grab a 423 ftf from the general section and follow the instructions in the thread.
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
He said he wants to flash a 4.2 ROM. So thats not possible if not on 4.2 STOCK.
no one had seen tutorial that discuss updating firmware from .253 to .423 ?
hutilicious said:
He said he wants to flash a 4.2 ROM. So thats not possible if not on 4.2 STOCK.
Click to expand...
Click to collapse
Where does it say CUSTOM rom?
All I get from the original post is that he is on 253 and wants to end up on 10.3.A.0.423.
Sent from my C6603 using Tapatalk 2
---------- Post added at 04:09 PM ---------- Previous post was at 04:06 PM ----------
Jwtiyar said:
no one had seen tutorial that discuss updating firmware from .253 to .423 ?
Click to expand...
Click to collapse
If you do indeed just want to update to stock 423, then follow the tutorial I linked you to. Look in the general section for a 423 ftf.
If you're actually talking about a custom rom, then still follow the tutorial, then follow the instructions in the thread for the custom rom you're using.
Sent from my C6603 using Tapatalk 2
kingvortex said:
Where does it say CUSTOM rom?
All I get from the original post is that he is on 253 and wants to end up on 10.3.A.0.423.
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
yes now iam on 4.1.2 stock ROM (rooted, unlocked) i want to update to 4.2.2 (custom ROM).
Jwtiyar said:
yes now iam on 4.1.2 stock ROM (rooted, unlocked) i want to update to 4.2.2 (custom ROM).
Click to expand...
Click to collapse
Then what the other people in the thread said does apply. You should be clearer with what you're asking in future.
Just follow the instructions in the thread I linked to update to 4.2.2, then follow the installation process in the rom thread.
Sent from my C6603 using Tapatalk 2
kingvortex said:
Then what the other people in the thread said does apply. You should be clearer with what you're asking in future.
Just follow the instructions in the thread I linked to update to 4.2.2, then follow the installation process in the rom thread.
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
gotcha : p: p
kingvortex said:
Then what the other people in the thread said does apply. You should be clearer with what you're asking in future.
Just follow the instructions in the thread I linked to update to 4.2.2, then follow the installation process in the rom thread.
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
The problem is iam not familiar with sony devices , so i wanted the clear answer not all different answer.
Thanks again.
Sent from my HTC One using Tapatalk 4 Beta
Jwtiyar said:
The problem is iam not familiar with sony devices , so i wanted the clear answer not all different answer.
Thanks again.
Sent from my HTC One using Tapatalk 4 Beta
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2337838
flash via flashtool ... root again ... install recovery .. then flash any 4.2.2 based rom you like
is that simple enough
fish droid said:
http://forum.xda-developers.com/showthread.php?t=2337838
flash via flashtool ... root again ... install recovery .. then flash any 4.2.2 based rom you like
is that simple enough
Click to expand...
Click to collapse
Thanks thats what iam talking about.
Sent from my HTC One using Tapatalk 4 Beta

Upgrade/downgrade...

Hi,
I am thinking of flashing the 4.4 upgrade to my z1 to see if the Bluetooth issues that I had on 4.3 will be resolved. My question is -
If I upgrade to 4.4 and I am still having Bluetooth issues, will I have any problems downgrading back to 4.4.2?
Any help will be appreciated!
P.S. I don't need to have root access!
Yes because you cannot downgrade from 4.4 to 4.4.2, they are the same
If you mean downgrading to 4.2 or 4.3, it should be fine (AFAIK)
Remember there was the loss of IMEI going from 4.3 to 4.2, so I suggest only downgrading to 4.3
gregbradley said:
Yes because you cannot downgrade from 4.4 to 4.4.2, they are the same
If you mean downgrading to 4.2 or 4.3, it should be fine (AFAIK)
Remember there was the loss of IMEI going from 4.3 to 4.2, so I suggest only downgrading to 4.3
Click to expand...
Click to collapse
Hi gregbradley
Thank you for your reply,,,
Sorry I meant downgrade from 4.4.2 to 4.2.2...
I have tried the upgrade to both .290 and .136 (4.3) and back again to .257 (4.2.2) and did not suffer any IMEI loss.. Does this mean that I was just lucky or?
Regards,
Alan
nalab1 said:
Hi gregbradley
Thank you for your reply,,,
Sorry I meant downgrade from 4.4.2 to 4.2.2...
I have tried the upgrade to both .290 and .136 (4.3) and back again to .257 (4.2.2) and did not suffer any IMEI loss.. Does this mean that I was just lucky or?
Regards,
Alan
Click to expand...
Click to collapse
Well, if there was no problem, there was no problem
You should be able to downgrade so give it a go and see
gregbradley said:
Well, if there was no problem, there was no problem
You should be able to downgrade so give it a go and see
Click to expand...
Click to collapse
Hi gregbradley,
Thank-you for your reply..
I will! BTW - I am on Vodafone in the UK have you got any suggestions as to what ftf I should flash? When I flashed the .136 ftf I used this -
C6903_14.2.A.1.136_Generic BAL.ftf from the ftf mega collection in XDA...
Regards,
Alan
nalab1 said:
Hi gregbradley,
Thank-you for your reply..
I will! BTW - I am on Vodafone in the UK have you got any suggestions as to what ftf I should flash? When I flashed the .136 ftf I used this -
C6903_14.2.A.1.136_Generic BAL.ftf from the ftf mega collection in XDA...
Regards,
Alan
Click to expand...
Click to collapse
Any will do, I started off life on the UK Vodafone, now I am on the commercial and journalistic one
Hi nalab! I also had this question since last night and I really wanna go back to 4.3 (136), i just wanna know did you wipe data when you flashed the lower firmware? Thanks!
Sent from my C6903 using XDA Premium 4 mobile app
cyrom said:
Hi nalab! I also had this question since last night and I really wanna go back to 4.3 (136), i just wanna know did you wipe data when you flashed the lower firmware? Thanks!
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hi!
Yes, I wiped everything when I went back... I went from 4.3 to 4.2.2 tho...
nalab1 said:
Hi!
Yes, I wiped everything when I went back... I went from 4.3 to 4.2.2 tho...
Click to expand...
Click to collapse
Oh I see. Thanks! I'm sticking with kitkat for a while.
Sent from my C6903 using XDA Premium 4 mobile app
cyrom said:
Oh I see. Thanks! I'm sticking with kitkat for a while.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Which ftf did you use for kitkat?
nalab1 said:
Which ftf did you use for kitkat?
Click to expand...
Click to collapse
I have updated via pcc. Cv's 1276-7935 for philippines. I hate this sd card restrictions.
Sent from my C6903 using XDA Premium 4 mobile app
I'm on generic UK. Should I update to Vodafone UK or just wait until I can update via Pcc?
Sent from my C6903 using xda app-developers app
ady_seray said:
I'm on generic UK. Should I update to Vodafone UK or just wait until I can update via Pcc?
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
That's your choice. Vodafone UK will come with some bloat, but you can remove that with root.

need help to root my zr

i'm sorry but i found alot of rooting thread i'm confused
so can anyone help me to do it step by step or give me one thread ?
c5502
4.3
build number : 10.4.1.B.0.101
psycho0o said:
i'm sorry but i found alot of rooting thread i'm confused
so can anyone help me to do it step by step or give me one thread ?
c5502
4.3
build number : 10.4.1.B.0.101
Click to expand...
Click to collapse
just follow the steps in the link below. you cant root the current rom.
you have to flash an old version of rom and root it and then install pre-rooted latest rom.
http://forum.xda-developers.com/showthread.php?t=2655893
Last question, how can i downgrade? Just download 4.2 stock and.flash it?!
Sent from my C5502 using XDA Free mobile app
foxvb74 said:
Last question, how can i downgrade? Just download 4.2 stock and.flash it?!
Sent from my C5502 using XDA Free mobile app
Click to expand...
Click to collapse
Yes.. simple as that ,but choose your right Model (c5502/c5503)
I'm sorry samsung use.odin what i use for sony?
Sent from my C5502 using XDA Free mobile app
foxvb74 said:
I'm sorry samsung use.odin what i use for sony?
Sent from my C5502 using XDA Free mobile app
Click to expand...
Click to collapse
For Sony it's Flashtool
guys i found that XPERIA ZR (C5502,C5503)
C5502
10.1.1.A.1.310 Customized US
here
http://www.flashtool.net/firmwares.php
is that okay to flash ?!
psycho0o said:
guys i found that XPERIA ZR (C5502,C5503)
C5502
10.1.1.A.1.310 Customized US
here
http://www.flashtool.net/firmwares.php
is that okay to flash ?!
Click to expand...
Click to collapse
sure, go ahead

[Q] How to root xperia z LOCKED BL (10.5,A.0.230)

hello ... So I need a way to root my xperia z running on 4.4.2 kk with locked bootloder I bought my phone since 7 months so it still new so I won't unlock the bootloder
THANKS
With the greatest of respect, use the search. This is asked every day and there are multiple threads detailing the steps required.
Sent from my C6603 using Tapatalk
wth man ! -__-
people downgrade to 4.2.2, root it install recovery and flash a custom 4.4.2 rom and you have rooted 4.4.2
please stop now to post threads like this !
search before POST !!!
shehabskull said:
hello ... So I need a way to root my xperia z running on 4.4.2 kk with locked bootloder I bought my phone since 7 months so it still new so I won't unlock the bootloder
THANKS
Click to expand...
Click to collapse
Downgrade to 4.2 and follow instruction from here
kingvortex said:
With the greatest of respect, use the search. This is asked every day and there are multiple threads detailing the steps required.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
ok sorry I always search before posting but this time I forgot 3:
Pandemic said:
wth man ! -__-
people downgrade to 4.2.2, root it install recovery and flash a custom 4.4.2 rom and you have rooted 4.4.2
please stop now to post threads like this !
search before POST !!!
Click to expand...
Click to collapse
custom 4.4.2 rom! ok thanks but no direct way! it is very long travel !___!
Sent from my C6602 using Tapatalk
shehabskull said:
ok sorry I always search before posting but this time I forgot 3:
custom 4.4.2 rom! ok thanks but no direct way! it is very long travel !___!
Sent from my C6602 using Tapatalk
Click to expand...
Click to collapse
By custom @Pandemic means pre rooted 4.4.2 stock

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