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Originally Posted by windelas  i have iphone 4 sometimes its working and sometimes its switches off automatically and it will stuck in apple logo or sometimes in recovery mode. i tried the other battery and many time made the update(4.3.5) pls help |
Try a clean 5.1.1 restore but if there is a BB issue, then a restore may not work and the phone will stuck (Custom IPSW Hacktivated can pass it)