iTunes 4013 error, and no backlight.

Question

iPhone 6s

2015年9月25日にAppleから発売されたiPhone 6Sの修理情報とガイドです。モデル A1688、A1633。

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Mikołaj Ginalski @mikolajginalski

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投稿日: 2018年1月3日

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iTunes 4013 error, and no backlight.

Hi.

My iphone won't turn on, only recovery mode. When i tried to reinstall ios using iTunes i get 4013 error. I think the problem is nand memory, so i will in the next week replace nand memory.

My another problem is no backlight, i can see apple logo only when i light it up from flashlight.

Look at this photo, i think there are two missing capacitors. But what the name of their for replace?

So what you think about 4013 error and no backlight?

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Minho @refectio

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投稿日: 2018年1月4日

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First of all, error 4013 on the iPhone 6S is more likely to be a Baseband issue than a NAND issue.

As for the missing parts, the one on the left is C4212 (100pF/35V/5%/01005 - it's on the PP_LCM_BL_CAT1 line) and the one on the right is C3230 (100pF/16V/5%/01005 - it's on the AP_TO_RCAM_CLK line).

You can search the internet for the schematic and you will see all the specs as well as what they do in the circuit.

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Thanks, today i will make reballing for nand, maybe it will be solution. But where can I get C4212 and C3230? Nobody selling it

Mikołaj Ginalski さんによる2018年1月5日

Sure, those are very common parts. Look at Digikey or Mouser or any local electronics component vendor. I gave you all the specs.

Minho さんによる2018年1月5日

I found this https://pl.mouser.com/productdetail/mura... - C4212. Can it works?

Mikołaj Ginalski さんによる2018年1月6日

No, it's only rated to 25V. You need to find one that;s rated for 35V.

Minho さんによる2018年1月6日

@refectio Bro can you please explain how the baseband issue is fixed. All repair shops i've been to cant help me and apple service center asks me to replace the phone for alot of money . PLEASE HELP :(

Syed Hussain さんによる2018年5月1日

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Thanks, today i will make reballing for nand, maybe it will be solution. But where can I get C4212 and C3230? Nobody selling it — Mikołaj Ginalski
Sure, those are very common parts. Look at Digikey or Mouser or any local electronics component vendor. I gave you all the specs. — Minho
I found this https://pl.mouser.com/productdetail/mura... - C4212. Can it works? — Mikołaj Ginalski
No, it's only rated to 25V. You need to find one that;s rated for 35V. — Minho
@refectio Bro can you please explain how the baseband issue is fixed. All repair shops i've been to cant help me and apple service center asks me to replace the phone for alot of money . PLEASE HELP :( — Syed Hussain