メインコンテンツにスキップ

iPad Mini 2のWi-Fiモデル用の修理ガイドです。発表日は2013年10月22日で、発売は11月12日です。iPad Mini 2はRetina Display搭載のiPad Miniです。

208回答 すべてを表示

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?

回答がありました! 回答を表示 同じ問題があります

この質問は役に立ちましたか?

スコア 0
コメントを追加

1 件の回答

選択されたソリューション

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.

このアンサーは役に立ちましたか?

スコア 1

2 件のコメント:

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

さんによる

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).

さんによる

コメントを追加

回答を追加する

John Nguyen さん、ありがとうございました!
統計データを表示:

過去 24時間: 0

過去 7 日: 5

過去 30 日: 31

今までの合計 241