iPad turns flat @ 10%, shows iTunes/ USB symbol, after digitizer replacement

Question

iPad 4 Wi-Fi

Fourth generation of iPad, released November 2, 2012, available in 16, 32, or 64 GB models. Model Number A1458

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Mae @exolmae

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게시일: 2017년 5월 9일

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iPad turns flat @ 10%, shows iTunes/ USB symbol, after digitizer replacement

I recently replaced my digitizer and have noticed that at around 10% battery left, the iPad will completely switch off and blinks the empty red battery when trying to power on.. When plugged into a power socket, it shows the iTunes/ USB Cable symbol saying to restore via iTunes. This is the second time this has happened since after the digitizer replacement. What could be the problem for the battery shutting off early and the reoccuring iTunes/USB Cable symbol? Thanks

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Minho @refectio

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As a first step, I would verify the condition of the battery. A battery in poor condition can cause this type of problem.

Download coconutBattery (Mac) or 3uTools (Windows) to test the battery. It will tell you how many charge cycles and the actual battery capacity is. Get back to us with the results and we can give you more guidance.

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http://www.coconut-flavour.com/coconutba...

http://3utools.en.lo4d.com

mayer 의 2017년 5월 9일

Thanks @mayer, I forgot!

Minho 의 2017년 5월 9일

Charge times: 554

Actual Capacity: 8715mAh

Design Capacity: 11560mAh

Battery Life: 75%

Instant Voltage: 3.79V

Boot Voltage: 3.74V

Temperature: 23.20 degrees Celsius

Instant Amperage: 459mA

Battery Manufacturer: N/A

Mae 의 2017년 5월 10일

A battery starts to behave erratically when it gets below 80% of its design capacity; shorter life, shutting down even though there is still a charge etc. Your battery behaviour is normal as it's at the end of life. You will need to replace your battery.

What's unfortunate is that you just recently replaced the digitizer, giving you easy access to the battery. You can buy a battery here.

Minho 의 2017년 5월 11일

Thankyou very much for your help Minho :) I was struggling to identify whether it was this or that that was causing the iPad some trouble. Thanks !!! :)

Mae 의 2017년 5월 15일

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http://www.coconut-flavour.com/coconutba...

http://3utools.en.lo4d.com — mayer
Charge times: 554

Actual Capacity: 8715mAh

Design Capacity: 11560mAh

Battery Life: 75%

Instant Voltage: 3.79V

Boot Voltage: 3.74V

Temperature: 23.20 degrees Celsius

Instant Amperage: 459mA

Battery Manufacturer: N/A — Mae
A battery starts to behave erratically when it gets below 80% of its design capacity; shorter life, shutting down even though there is still a charge etc. Your battery behaviour is normal as it's at the end of life. You will need to replace your battery.

What's unfortunate is that you just recently replaced the digitizer, giving you easy access to the battery. You can buy a battery here. — Minho
Thankyou very much for your help Minho :) I was struggling to identify whether it was this or that that was causing the iPad some trouble. Thanks !!! :) — Mae

iPad 4 Wi-Fi

iPad turns flat @ 10%, shows iTunes/ USB symbol, after digitizer replacement

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