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Post originale di: Bobbieee ,


This is a problem with ALL Lithium ion batteries... if they have sat on the shelf too long and become completely discharged, it will be very difficult to put a charge on it.  Lithium ion batteries should not be completely discharged.  I have the same problem now with my iphone 4s - replaced the battery and apple logo is flashing.  Tried to restore the iphone but I get an error 21 in iTunes.  The problem is during restart of the phone during the restore process - because the battery is completely discharged, the phone shuts off momentarily instead of restarting. That is why itunes fails on the restore process.  Don't fall for the $9 iphone battery trick - the old saying "you get what you pay for"...