Which cable powers the backlight?

Question

iPhone 4S

iPhoneの5代目となるiPhone 4S。このデバイスの修理は比較的簡単で、スクリュードライバー、開口ツールと忍耐が必要です。GSM/CDMA / 16, 32, 64 GB / 白と黒

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Sccoaire @sccoaire

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投稿日: 2014年11月25日

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Which cable powers the backlight?

Hello...

When looking at iPhone 4S スクリーンの交換 Step 17, I see the digitizer cable and the display data cable. What powers or control the backlight part of the LCD assembly. I have tried 2-3 supposedly "new" LCD for my iPhone 4S and none of them have backlight.

There was some damage to the phone and I'm trying to pinpoint where the problem is. The rest of the phone works great; with a light pointed at the screen, I can use iOS to install apps, use apps, connect to Wifi, charge, access from iTunes on desktop.

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Jesse @jesse25179 評価: 61 2 3 · Answer 1 · 2014-11-25T09:57:27-07:00

Jesse @jesse25179

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If you have tried several replacement screens for your phone and all are giving you the same issue, perhaps the fault isn't with the screens. Have you considered the possibility that you have a damaged logic board?

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I was really hoping it wasn't the logic board. From what I've seen online, I would need to replace the backlight coil, IC and filters. Need to learn to solder I guess.

Sccoaire さんによる2014年11月25日

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iPhone 4S

Which cable powers the backlight?

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