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Question [Q] Downgrade from CM11 to CM10.2

OP ioannis_m

19th November 2013, 03:40 PM   |  #1  
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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.
19th November 2013, 05:48 PM   |  #2  
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Have you tested a recover to an older backup via CWM-Recovery???

Quote:
Originally Posted by ioannis_m

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.

20th November 2013, 08:23 AM   |  #3  
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Quote:
Originally Posted by freakymod2120

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)
20th November 2013, 09:55 AM   |  #4  
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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.

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Last edited by knuckles1978; 20th November 2013 at 09:59 AM.
20th November 2013, 12:31 PM   |  #5  
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Quote:
Originally Posted by knuckles1978

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?
20th November 2013, 02:06 PM   |  #6  
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Quote:
Originally Posted by ioannis_m

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.
20th November 2013, 02:22 PM   |  #7  
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Quote:
Originally Posted by wizzdiz

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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20th November 2013, 02:34 PM   |  #8  
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Quote:
Originally Posted by ioannis_m

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.
20th November 2013, 04:13 PM   |  #9  
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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?

Quote:
Originally Posted by wizzdiz

Glad to hear it... dunno why it din't work for me though.

20th November 2013, 11:32 PM   |  #10  
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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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