Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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iPhone 4 shows logo and then disapears

Help i don't know what to do i can't restore error (21) i can't jailbreak just nothing and mine ios 7.0.6 so no redsn0w for me i tryed to jailbreak evati0n but that what happened logo popup and disappear.Help

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3 Answers

This is a battery error you will need to replace itiPhone 4 Battery Replacement

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new battery ? so to buy new and put in?

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Yes it needs a new battery it's a simple repair most places provide the tools for opening the iphone

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okay but what alout error 21 on itunes when restoring your iphone?

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Was your battery bad before this like draining fast.

Try another iPhone cable just to rule that out as being faulty

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no it wasin't but i tryed to plug it in but just apple logo and then disapears

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It's giving that error because it needs a battery..

The iPhone needs a battery til boot to the main screen if the battery is faulty then it will fire up the error 21.

Had this problem many times with customers and battery will100% fix this

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okay i will try but all of this started after i tryed to jailbreak whit evati0n

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So is that becose battery or evati0n?

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news news news i've changed the battery still logo screen and then again :(

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nothing becose of the error 21 cant restore

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and plus when i take out the battery and plug in usb still the same thing...

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