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Wi-Fi版的iPad Mini 2指南。2013年10月22号发布同年11月12号上市。iPad Mini 2就是配备了Retina显示屏的iPad Mini,在更小尺寸的的7.9寸屏幕上拥有和iPad Air相同的像素。

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Ipad mini 2 no power

I have a ipad mini 2 that i’m trying to fix but it won’t turn on or be recognized by itunes. This ipad has never been opened before and I have already tried a hard reset and making sure charge port is clean. I hooked up my ahmeter to it and it shows charging at .3a only. Is there a good way to test if it could be the tristar chip or power ic chip that’s faulty or is it something else as it is charging at .3a?

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If this is still the original battery (you say it was never opened), then chances are you have a dead battery. Either way, you will have to open it up. Leave the iPad on charge overnight and then check the battery voltage with a voltmeter, anything less than 3.5 V means the battery isn’t strong enough anymore to boot.

EDIT

When troubleshooting charging issues, I would do the following (in order):

  1. Always try another Lightning cable and charger, preferably Apple original or MFi certified units.
  2. The Lightning cable 8-pin connector should be sitting flush with the housing and completely inserted. If it is not, there could be lint/dust/debris inside the port impeding a proper connection. You can clean it out with a toothpick, fine point tweezers or a dental pick. Just be careful not to damage the pins inside the Lightning Port.
  3. Change the battery. The battery is the weakest link in the entire phone and certainly for charger related issues. It is also the easiest thing to replace. If the device boots, then use a battery utility, such as coconutBattery (for Mac) or 3uTools (for Windows) to test the battery prior to removal. Anything less than 70% of design capacity will require replacement.
  4. If the battery is in good condition, you can use a USB Ammeter to determine if the phone is really drawing current when it says it's charging. If it isn't drawing current, then I would change the Lightning/Charge Port.
  5. If a new battery and charge port still don't resolve the issue, then you either have faulty replacement parts (possible) or a logic board issue. There is an IC (commonly referred to as Tristar) responsible for communicating with the charging device and uncertified chargers can damage it. Unplug the battery and connect a known-good (preferably Apple original or MFi) charger to the phone. A properly working phone will show an Apple logo and boot loop. If the Tristar IC is bad then the phone will not do anything.

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I tried a good known battery and it still only charges as 0.3a

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See my edits above. You have already tried points 3 and 4. I would check the Lightning port for debris (2). Unfortunately, replacing it requires some micro-soldering, as would a Tristar issue (5).

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