Reverting to original stock help - Xperia Z1 Q&A, Help & Troubleshooting

Hii i am presently on ihackers 4.0 .757 currently rooted but i want to go to service centre for some hardware issues help me with the whole process
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If you want to be sure that the phone will be covered by warranty, you have to flash back any stock FTF for your model.

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Help restoring to Stock ROM

Hey guys I'm trying to help restore my uncle's phone back to stock but I'm not sure what I should be using to flash over it. Right now it's running Slim Bean 4.2.2 (Build 8). He bought this phone second hand so I'm not sure where this phone is from originally.
The baseband says N7000XXLR1 and I couldn't find that anywhere, would I be able to just flash the official XXLT9 4.1.2 firmware over it using Odin?
You can flash any rom you like, but might be better to stick with one for your region.
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You will need to do data wipe. Do it while you have Cwm recovery. And then boot into download mode and flash the stock rom. This may save you a factory reset after flashing.
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Alright thanks guys. So to clarify I can flash any of the official 4.1.2 firmware and it should work fine (I won't have to worry about the baseband)? I was planning on flashing the unbranded stock rom I found here.
Yes u can flash the unbranded rom
Its latest xxlt9
N its unbranded u don't have to bother for baseband..
U can flash n go on..
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Support for 2.245

Hi.
I have got my so rooted and unlocked and have wanted to put a custom ROM on.
But every single one says just support for 2.254 firmware not my 2.245 firmware.
Will it still work or would it brick
Xperia SP
Genetric UK Stock
c5303
Sent from my C5303 using xda app-developers app
It not safe to cross flash it will probably bootloop..i would suggest u to flash 2.254..and get it rooted and custom recovery installed.
Happy flashing
Sent from my C5302 using xda app-developers app
Is that possible as 2.245 is my only available software to update too
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2.245
Dear Freind
Roms like pureness 1 and Honamiutreized are strictly firmware specific that is why, i think those developers specifically state do not flash this over other firmware variants that will cause problems and this is because those developers have heavily modded the latest firmware to add more tweaks to give advanced user experience hence that ROM may not be compatible on older firmwares.
But probably you can find Custom Roms (Like Cleaned and Tweaked Rom, JBXSP Rom, Project AOSP Rom) based on 2.245, just go to respective threads and check, you will find that the most of the ROMs' version 2 or 3 should be based on 2.245 firmware.
Try and enjoy customs roms. :laugh:
No if you check this link http://forum.xda-developers.com/showthread.php?t=2311964 you can find many FTF for 2.254 which can be flashed using Flashtool and have latest firmware and flash latest ROMs based on 2.254 without any problem.
RevTheory said:
Hi.
I have got my so rooted and unlocked and have wanted to put a custom ROM on.
But every single one says just support for 2.254 firmware not my 2.245 firmware.
Will it still work or would it brick
Xperia SP
Genetric UK Stock
c5303
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
Hey buddy,
Don't cross flash .254 FW over .245 FW.
Just use flashtool to flash the .254 FW. It is easy, and there are many guides to do it. Once you know how to use flashtool, your phone also automatically becomes unbrickable as you know how to flash back the stock FW even if you somehow softbricked your phone.
Also, don't post questions in the development section. This is for ROMs and Kernels and stuff, there's no place for questions here. Go to the Q&A section instead next time.
Happy flashing (ROMs and kernels, not anything else )
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This is a discussion thread should be in general forum
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Hi guys ask about 4.4.2 room !!

How can i install cm or any rom 4.4.2 on my Xperia z ? I have root and look bootloader
And any room is the best for z
And there are problems with back to previous firmware ?
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dragonnet_86 said:
How can i install cm or any rom 4.4.2 on my Xperia z ? I have root and look bootloader
And any room is the best for z
And there are problems with back to previous firmware ?
Sent from my C6603 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You will need to have unlocked bootloader first before flashing any CM roms or 4.4.2 roms
To back to original firmware just flash the pre-rooted 4.3 ROM over here
There's many kind.
I prefer you to wait for official 4.4 update as will be available next month

[Q] Downgrading using FTF

Hi,
I Upgraded my xperia C6602 to Android 4.4 using the journalists and commercial ftf from our forum. the update is not yet available in india. so if i want to give the phone to service centre for repair under warranty, is it possible to downgrade the firmware to the old one (4.3) using the ftf for india ?
wilzad said:
Hi,
I Upgraded my xperia C6602 to Android 4.4 using the journalists and commercial ftf from our forum. the update is not yet available in india. so if i want to give the phone to service centre for repair under warranty, is it possible to downgrade the firmware to the old one (4.3) using the ftf for india ?
Click to expand...
Click to collapse
It's very easy!
Look here:
http://forum.xda-developers.com/xperia-z/general/post-questions-help-troubleshooting-t2116920
yes,u can just flash an indian 4.3 ftf using flashtool
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Back to Stock and UB

Hi!
Im about to sell my phone and want to revert stock and LB for this.
Now Ive backed up TA.and dont find any tut on howti revert everything. And i even cant find any stock ftf rom for my C6903
Any help there?!
Sent from my C6903 using XDA Free mobile app
maybe this thread can help you http://forum.xda-developers.com/showthread.php?t=2440597

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