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I have CM 11 flashed on my phone that is rooted. I wanted to downgrade back to any stock ROM for SIM card unlocking purposes. Obviously the CM 11 does not allow SIM card unlocking even with valid unlocking code.

My question is, is that possible? I think the CM 11 upgraded the modem and bootloader, which means there is no way back to older versions.

Can someone please provide some insights? Below are the settings of my phone:

3rd June 2014, 06:53 AM |#2  
Senior Member
Flag Toronto
Thanks Meter: 18
Use odin and flash back to 4.3
4th June 2014, 05:53 AM |#3  
Junior Member
Flag Bangalore
Thanks Meter: 5
I'm on cm11 too. Can I simply flash a 4.3 modem and bootloader?

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4th June 2014, 12:40 PM |#4  
audit13's Avatar
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Flag Toronto
Thanks Meter: 4,748
Since you have the 4.3 bootloader on your phone, you came flash any stock ROM in Odin unless that ROM had been compiled for use in Odin. Flashing a ROM that tries to downgrade the bootloader will brick your phone. Look in the development forum for methods to flash back to stock on a phone with a 4.3 bootloader.
5th June 2014, 01:06 AM |#5  
Junior Member
Thanks Meter: 1
Can someone confirm that we can downgrade via ODIN.... i want to reset my phone back to its original settings.

I am in the same boat as the OP
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