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how to downgrade from 290 to 257 without losing imei

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hykhleif
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Default how to downgrade from 290 to 257 without losing imei

due to the problem I have with bluetooth streaming connection I want to revert back to 257 root

I am on 290 unlocked boot loader and backed TA so can someone tell me how to downgrade in a step by step instruction

thanks in advance
 
blueether
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Quote:
Originally Posted by hykhleif View Post
due to the problem I have with bluetooth streaming connection I want to revert back to 257 root

I am on 290 unlocked boot loader and backed TA so can someone tell me how to downgrade in a step by step instruction

thanks in advance
http://forum.xda-developers.com/show....php?t=2575359
This thread has all the information

Something like:
Make a backup, nandroid etc
Flash 532 ftf with flashtool while excluding baseband
Flash whatever you like now
Charles
Alcatel One Touch "easy" -> Nokia 1110i -> Alcatel ame-408 -> Motorola Razr v3 -> Huawei u8100 -> Sony Xperia Z-Ultra
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