メインコンテンツにスキップ

2016年3月に発売された4インチのiPhone。ハードウェア仕様は6sに類似しています。シルバー、スペースグレイ、ゴールド、ローズゴールドのカラーが揃っています。16/64 GB容量、Model A1662とA1723

1049回答 すべてを表示

Completely dead - PP_BATT_VCC almost 0V

Hi,

I’m currently repairing an SE which is completely dead. No vibration when plugged in, nothing. It didn’t have an accident, crash, water, etc., it pretty much died by itself.

I checked if PP_BATT_VCC is shorted but it’s fine. However when I connect the battery and measure PP_BATT_VCC at TP02, my Multimeter shows 0.28V. When I plug the charger in it drops to 0.26V. Is there anything I can check out easily with these findings? 

I don’t have a microscope so if it’s too complicated/tiny I’m probably finished here… 

Thanks for your help!

Jakob

この質問に回答する 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
2 件のコメント

Have you checked vcc main for a short

さんによる

Can you give me a hint where I can measure VCC_MAIN easily?

さんによる

コメントを追加

2件の回答

最も参考になった回答

Dead phone could be Vcc_main short or tristar failure.

I have also seen spontaneous shorts on the se model and will need board level work.

このアンサーは役に立ちましたか?

スコア 3
コメントを追加

Block Image

The Red indicated caps will VCC_ Main top side of board if you prob them In resistance mode you you should get OL in one side if not you have a short.

このアンサーは役に立ちましたか?

スコア 2

2 件のコメント:

Hey A1, thanks for helping out the OP! In the future, it would be better to simply edit your original answer to add the image and extra description. It may not seem like it now but some questions can get a lot of answers (not all of them good ;>) with a variety of votes which takes them out of sequence. Keeping things clean early on can make a big difference.

さんによる

Hi Minho, Thank you for letting me know i was looking at adding it to notes but it didn't allow me. I will edit them from now on.

It's been great helping out look forward to chatting in the future. :)

さんによる

コメントを追加

回答を追加する

Jakob Raible さん、ありがとうございました!
統計データ:

過去 24時間: 0

過去 7 日: 0

過去 30 日: 0

今までの合計 159