Downgrade from CM10 Quarx's kernel to SBF

[euros60]

Hello,
I installed the last CM10 Quarx's nightly with his custom kernel but my screen have problem, it appeared dead pixels, it's an hardware problem. So, I would to send my Defy+ to SAV but I voided my warranty with rooting, installating of BootLoader and flashing an unofficial rom and kernel. Thus I ask you if I can re install my older kernel with a SBF in order to at end unroot my phone to send it to SAV (for details, I have made a nandroid backup before the installation of CM10 rom and custom kernel)

PS : SAV is french, in english it's "after-sales service"

 

[thekguy]

Just pick a sbf of your region and flash sbf+ wipe data from stock recovery, to get the phone running in stock condition

Don't worry at all about kernels, it will be wiped when an sbf is flashed

Sent from my MB526 using xda premium

 

[euros60]

Just pick a sbf of your region and flash sbf+ wipe data from stock recovery, to get the phone running in stock condition

Don't worry at all about kernels, it will be wiped when an sbf is flashed

Sent from my MB526 using xda premium

Ok many thanks for your response !!!

 

[euros60]

I try this, it's work fine.
If anyone is in my situation use this :

http://sbf.droid-developers.org/
http://werno-ijo.blogspot.fr/2012/04/how-to-flash-stock-sbf-defy.html
http://forum.xda-developers.com/showthread.php?t=966537
http://www.youtube.com/watch?v=-My3iODE208 (it's the same manipulation that on our defy or defy+)

 

[turboyeast]

Just pick a sbf of your region and flash sbf+ wipe data from stock recovery, to get the phone running in stock condition

Don't worry at all about kernels, it will be wiped when an sbf is flashed

Sent from my MB526 using xda premium

Do I understand correctly that a nandroid backup is not really required? But that one can pick a official SBF as posted here and just flash it as you described?

http://sbf.droid-developers.org/umts_jordanplus/list.php

Regards, TY

 

[Swift2603]

Do I understand correctly that a nandroid backup is not really required? But that one can pick a official SBF as posted here and just flash it as you described?

http://sbf.droid-developers.org/umts_jordanplus/list.php

Regards, TY

The only reason to make a nandroid backup here is to restore your phones' current state when you get it back from repairs. With flashing a SBF you erase all data from the phone and restore the factory settings. Then you can send it for repairs without risking your warranty.