Replaced the battery as described, but still not working

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iPhone 4S

iPhoneの5代目となるiPhone 4S。このデバイスの修理は比較的簡単で、スクリュードライバー、開口ツールと忍耐が必要です。GSM/CDMA / 16, 32, 64 GB / 白と黒

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Sven @sven28573

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投稿日: 2014年10月20日

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Replaced the battery as described, but still not working

Hi community,

I've replaced the battery as described (worked very well) but still I cannot turn the iPhone on. The switch seems to work (if I connect the phone to the charger or to the laptop) but it seems, that the battery won't get charged.

I always get a prompt to restore a firmware image but I cannot restore the image. Doing so will always fail (during the first reboot after preparation) with error 21 (unknown error).

Any suggestions?

Thanks for your feedback - best regards...

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con @con82159 評価: 37.6千 IRepair iphones 22 51 42 · Answer 1 · 2014-10-20T07:16:16-07:00

con @con82159

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Install a battery with charge on it see does the iPhone boot

Then when it boots see does the % increase if it doesn't then a dock replacement is needed

Sometimes a faulty dock will say it's charhing when it's not even

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Hi,

thanks for your answer, how can I replace a "charged" battery or - asking another way - how can I charge the battery without an iPhone attached to it ;)

Unfortunately the iPhone is in a "unrecognized" state which means I am not sure which firmware (or even if a firmware) is running. I cannot "repair" the iphone without being sure, that the battery is "full".

Any ideas?

Sven さんによる2014年10月20日

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con @con82159 評価: 37.6千 IRepair iphones 22 51 42 · Answer 2 · 2014-10-20T07:43:38-07:00

con @con82159

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Ok if you have a friend with a iPhone 4s and it's got battery life take the battery out of it and install in yours .. Simple

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Hi,

would be even easier if I had a friend using this "old" phone anymore. I don't know whether the battery has any battery protection circuit or anything like that, than I'd just attach it to my LiIon charger - I "could" do that if anyone could point out the pinnig of the connector. If the charging logic is not within the battery itself this could just blow up the battery... bad idea...

I wonder whether I could charge the battery inside a iPhone 4?

Any other ideas?

Thanks and best regards,

Sven

Sven さんによる2014年10月20日

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