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[Q] Downgrade from CM11 to CM10.2

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ioannis_m
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Question [Q] Downgrade from CM11 to CM10.2

I've tried to downgrade my Galaxy S in order to take some backup from the nandroid that I kept (msgs,call log etc) to sms backup and then to upgrade again to 4.4.

I first flashed through .zip 3.3.0.s semaphore kernel (my last 10.2 snapshot was patched) in order to flash snapshotM1 = jb gapps.The kernel was flashed with no problem but when i tried to flash the rom it got aborted (red triangle).

What further must I do to downgrade to 10.2?

Thanks in advance.
 
freakymod2120
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Have you tested a recover to an older backup via CWM-Recovery???

Quote:
Originally Posted by ioannis_m View Post
I've tried to downgrade my Galaxy S in order to take some backup from the nandroid that I kept (msgs,call log etc) to sms backup and then to upgrade again to 4.4.

I first flashed through .zip 3.3.0.s semaphore kernel (my last 10.2 snapshot was patched) in order to flash snapshotM1 = jb gapps.The kernel was flashed with no problem but when i tried to flash the rom it got aborted (red triangle).

What further must I do to downgrade to 10.2?

Thanks in advance.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Phone: Samsung Galaxy S I9000 (SGS)
ROM: Running Pawitp`s CyanogenMod 11-Nightly (KITKAT)
Kernel: CM-Kernel

Many Thanks to the amazing Devs here - what would our Galaxy S be without you

Android is great, CM is greater and it gets better and better ...

Don`t forget to hit the "Thanks" Button
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
ioannis_m
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Quote:
Originally Posted by freakymod2120 View Post
Have you tested a recover to an older backup via CWM-Recovery???
You mean just flash (after factory reset /wipes etc) the nandroid without the rom that it has been saved in it?(snapshotM1 10.2)
 
knuckles1978
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(Last edited by knuckles1978; 20th November 2013 at 08:59 AM.)
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Yeah. You said you have a jellybean nandroid. Why can't you just restore it??

If you first make a nandroid of your kitkat, you can easily go back to jb, make the backups you need, then flash your KK nandroid back, then restore your JB backups.

Sent from my GT-I9000 using Tapatalk
 
ioannis_m
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Quote:
Originally Posted by knuckles1978 View Post
Yeah. You said you have a jellybean nandroid. Why can't you just restore it??


Sent from my GT-I9000 using Tapatalk
I've read from other users that in order to restore an 4.3 (10.2 in our case) nandroid i first have to put a 4.3 kernel on the phone (after factory reset/wipes etc) .When i do that the kernel goes like a butter into the system and when i try to flash the nandroid i'm getting an aborted sign with the red triangle .(my phone says to me no nono no no )

So if i want to go back i simply load the nandroid without the kernel?
 
wizzdiz
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Quote:
Originally Posted by ioannis_m View Post
I've read from other users that in order to restore an 4.3 (10.2 in our case) nandroid i first have to put a 4.3 kernel on the phone (after factory reset/wipes etc) .When i do that the kernel goes like a butter into the system and when i try to flash the nandroid i'm getting an aborted sign with the red triangle .(my phone says to me no nono no no )

So if i want to go back i simply load the nandroid without the kernel?
I had the same issue and eventually had to flash stock ROM before getting back to 10.2 as there was no way I could downgrade from CM11.
 
ioannis_m
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Originally Posted by wizzdiz View Post
I had the same issue and eventually had to flash stock ROM before getting back to 10.2 as there was no way I could downgrade from CM11.
I just flashed the previous nandroid (10.2) with total success and no errors.Just flashed it from kit kat to Jellybean without any kind of kernel flashing.
I guess it was wrong to flash previous kernel after all.
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wizzdiz
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Quote:
Originally Posted by ioannis_m View Post
I just flashed the previous nandroid (10.2) with total success and no errors.Just flashed it from kit kat to Jellybean without any kind of kernel flashing.
I guess it was wrong to flash previous kernel after all.
Glad to hear it... dunno why it din't work for me though.
 
freakymod2120
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Pawitp wrote here http://forum.xda-developers.com/show....php?t=2526478 under know issues the follow method to get back to CM 10.2:

Flash CM10.2 from recovery (workaround: restore a 10.2 backup or flash a 10.2 kernel before flashing) ==> so this should work ...have you tested that?

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Originally Posted by wizzdiz View Post
Glad to hear it... dunno why it din't work for me though.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Phone: Samsung Galaxy S I9000 (SGS)
ROM: Running Pawitp`s CyanogenMod 11-Nightly (KITKAT)
Kernel: CM-Kernel

Many Thanks to the amazing Devs here - what would our Galaxy S be without you

Android is great, CM is greater and it gets better and better ...

Don`t forget to hit the "Thanks" Button
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
xandas
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Cloud Search semaphore kernel.rar

I first flashed through .zip 3.3.0.s semaphore kernel (my last 10.2 snapshot was patched) in order to flash snapshotM1 = jb gapps.The kernel was flashed with no problem but when i tried to flash the rom it got aborted (red triangle
You must flash 3.3.0.s semaphore kernel.rar trhough Odin. Then you can flash android 4.3 as usual.

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