I found my old Iphone 4s battery and i have noticed that the old and the current battery APN is same 616-0579 and 616-0579 but still i replaced the old one to update my iphone but still it got stuck on recovery mode please advice do i need to replace the battery with APN 616-0581 or the problem is not with the battery.
also before replacing the battery i rubbed the clip area with alcohol .
Please help!