iPhone won't power on or show battery icon after discharge.

Question

Level 1

18 points

iPhone won't power on or show battery icon after discharge.

My iPhone4 ran out of battery. I plugged as soon as I could after it ran out (within 15 mins) and charged it overnight. It won't power on this morning and does not show the charged battery icon on the screen. The phone is only 4.5 months old and has never been left in a car or extreme heat. I always let the bettery run down to <10% before charging and then charge back to full capacity. I have tried holding down the home key and the sleep/wake buttons individually and together and nothing. Any suggestions?

iPhone 4

Posted on Aug 9, 2011 10:03 AM

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Answer 1

Aug 9, 2011 10:10 AM in response to lindnl

Press and hold the Home button while connecting the iPhone to your computer with iTunes open.

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Answer 2

Aug 9, 2011 10:21 AM in response to lindnl

First, there is absolutely no reason and no benefit to running the battery down to 10%. Charge the phone whenever convenient. Maybe run it all the way down once a month or so to recalibrate the battery gauge.

Now, charge for 15 minutes (if you haven't already), the hold the HOME and SLEEP buttons for 10-15 seconds, until an Apple logo appears.

Do NOT do as Jay suggests until you have tried this, as it will do a forced restore of your phone and you will lose everything on it that has been updated since the last sync.

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Answer 3

lindnl Author

Level 1

18 points

Aug 9, 2011 10:49 AM in response to Lawrence Finch

Thanks for the help. I had tried to connect it to the computer on my own and found out that my version of iTunes must be too old to talk to my iPhone4. I am still running 10.4.11 on my PowerBook G4 which uses an older version of iTunes. I don't use the music feature on my phone to conserve my battery for Apps and other features I really like and leave the music to my Shuffle. Guess I am really lucky it doesn't work as I would hate to loose my photos of my new grandson. I need to find a quick way to send them to backup storage.

When I disconnected after trying the computer and tried your suggestion of holding it until I saw the symbol, it finally worked. Guess I did not hold them both together for long enough. The battery only shows 31% even though it was on wall charger all night. I will use it as is today and charge it overnight again to see if it gets a full charge.

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