声誉积分: 55
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Hi there
I was doing work on an iphone 6 yesterday, and i forgot to disconnect the battery connector when working on the phone. When i tried to boot it up the screen won¨t turn on, and connecting to itunes it tells me error 4005 without the lcd on it. Does any of you have any experience and helpfull thing that can rescue my iphone or is it a total loose ?
声誉积分: 1.8千
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I would try these steps in order.
1- Open the phone, take out the board and check ( J1111 ) if it's damaged
or shorted repair it. Try to restore the phone without connecting the
front camera flex.
2- Check ( U0301 ) IC if it's cracked or damaged, resolder or replace.
3- Take out the board and remove the metal sheild over the NAND chip
(the U0604 chip in the picture). check if ther is any damaged component
around the chip, or if there any water damage (clean it ).
Check if there is any shorted (capacitor, resistor, coil) around the chip
then replace it.
4- resolder the NAND chip using heater (use the same tempereture you
use usually to remove ICs). heat for about 15 seconds and don't forget
to protect the ICs around the chip.
5- Replace the NAND chip but be carfull ( don't heat to much cause you
got the CPU in the other side). Don't go to this step befor being sure
that you did all the previous steps and there is no problem connecting
to Apple server.
这个答案有帮助吗？
Hi
Thanks for this exceptionel promt answer. I just need to know all og the components as (J1111) where exatly is this placed? And all og the other components, do you have any pictures of theese? i would be greathfull ?
You can download the schematic here. It's $12.00 but a very reputable source. This will show you the 1.8v rail as well as other components. You should also be able to search for each part with control F I believe. I could be wrong on search method though.
声誉积分: 973
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Error 4005 is pp1v8 shorted. Pp1v8 is the sleep wake voltage of the board. The error is nand failed to write as the nand memory's main voltage is pp1v8. The fault is in the backlight driver ic or the lcd pmu. Most likly the driver. If you replace the driver yourself use caution not to use excessive heat as the proximity to the CPU and ram
这个答案有帮助吗？
Hi
Where is pp1v8 placed ?
Carsten pp1v8 is the board wake voltage. It powers the memory, switches the trackpad ic, audio codec, cpu, camera and backlight driver.
You can use the probe point pp2510 second point up on the right of the board above the right hand side connector. But I am certain the backlight driver will need replacing
声誉积分: 55
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Hi Guys
Thank you very much for your swift answer, this is great that you are so fast in helping out, but you are speaking russian to my knowlegde of where to find all the components that you are talking about. I would be eternal greatfull if i could get pictures of them so that i can take the board out and examin it properly.
thanks
my spelling is properly not the best !
这个答案有帮助吗？
No problem at all. I can upload some pictures tomorrow for you.
Thanks Stephen
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5条评论
I am very confused at your problem. The title says backlight sensor is broken, error 4005 is a restoration error and I don't know what you're exactly asking. Is it about how to recover data, fix the screen or what?
由 Brandon Hollenback 完成的
Yes. I'm not new to this, have tried everything
由 Carsten 完成的
You said "Yes" but to what portion of my question?
由 Brandon Hollenback 完成的
Hi Guys
Thank you very much for your swift answer, this is great that you are so fast in helping out, but you are speaking russian to my knowlegde of where to find all the components that you are talking about. I would be eternal greatfull if i could get pictures of them so that i can take the board out and examin it properly.
thanks
my spelling is properly not the best !
由 Carsten 完成的
Hi Brandon
This is about geting this phone to work again. is this posible, have tried anything.
由 Carsten 完成的