Error 4013 and error 9 on DFU Mode

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iPhone 5s

2013年9月10日に発表されたApple iPhone 5sの修理情報とガイドです。モデル A1533、A1453、A1457、A1528、A1530、A1518。

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voonwahwong @voonwahwong

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投稿日: 2017年1月1日

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Error 4013 and error 9 on DFU Mode

Hi All,

I just bought a second hand iphone 5s and update the ios to 10.2. It works fine for almost a day and at the end of the day suddenly the device blank screen and what i did was reboot it as the screen are not coming back after i press power button to awake it. The device will never reboot and stuck at boot logo. Throw me a panic cpu 0 caller kernel panic once before stuck at itunes logo.

Tried to perform itunes restore but keep getting error 4013 on normal recovery mode and error 9 on DFU mode.

Tried to remove front screen assembly and back camera that someone from the answer here suggested but still unable to solve my issue. Any other parts might have cause this? Your suggestion of potential fix are appreciated.

Local device repairer told me might be the u2 flash issue and not worth for a fix as to replace the ic is expensive, is that true?

Thanks

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Dolcebimbo72 @dolcebimbo72 評価: 43 3 1 · Answer 1 · 2017-01-01T10:30:06-07:00

Dolcebimbo72 @dolcebimbo72

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error 9 while in DFU mode means lost connection between PC and device.... I would try replacing the USB cable first... if the issue persists then it should be an issue related to U2, Q2 or Power Manager, depending on measures taken with multimeter along the related voltage lines... I don't know what your local repairer means for "not worth" to repair... Here in Malta where I operate we manage to fix these issues for a maximum 200eur expense... maybe it could be worth for you or not.... in my opinion when a repairer tells you "not worth" without quoting it's because he's not able to fix it... this to encourage you not to give up and search for alternative repairers.... good luck!

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Thanks for your suggestion, i did replace cable, and even use different pc and macbook to restore. Unfortunately the issue persist. Besides this do you think is it possible a faulty battery could cause the issue as i see some of the answer suggested battery might have caused the issue. Also if the u2 or q2 chip change, will it last long or it might easily happen again? Thanks

voonwahwong さんによる2017年1月2日

I would definitely try another battery first before thinking of U2 or Q2 chip change.

Ben さんによる2017年1月2日

Yes definetely that will be my next try. Thanks

voonwahwong さんによる2017年1月2日

Tried with different battery... Too bas the error remains :(

voonwahwong さんによる2017年1月3日

I've noticed a lot of 4013 / iOS 10.X questions recently. U2 may fix this problem but it may not. Ask the repair shop if they work on a no fix/no fee basis to minimize your exposure to the costly "i think I can fix it" mentality.

Minho さんによる2017年1月3日

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iPhone 5s

Error 4013 and error 9 on DFU Mode

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