No Water Damaged history on this board. I do a little diagnose around the U_WTR_RF showing good measurement (PP_1v0_LD09). I never see people are talking about this issue on the internet. Seems like this case are very rare.

Some people said I need to change the U_WTR_RF and some said U_BB_RF. How do I know which one should I start first ?

⟐ Commented setembro 03, 2018 at 9:02 GMT-7

⟐ Commented setembro 02, 2018 at 7:08 GMT-7

⟐ Commented agosto 07, 2018 at 8:06 GMT-7

⟐ Answered julho 26, 2018 at 16:25 GMT-7

⟐ Commented julho 23, 2018 at 4:50 GMT-7

So my question is if I bought a donor logic board off ebay with an icloud lock, what components/chips would I have to swap to make it LIKE the messed up phone I got.

I'm assuming if I knew what pieces store the IMEI information on the board and I swapped them, then it would make that 'new' logic board unlocked as well?

...BUT... if I did that would it also remove the icloud lock that was on that donor board? or is that on another separate component?

and lastly if the donor board has a lower GB storage than the broken unlocked phone, is it possible to swap that chip out without complications?

thanks in advance.

⟐ Answer accepted junho 30, 2018 at 13:53 GMT-7

1) When I try to make or receive a phone call, within 5 seconds, my phone shuts down and reboots.

- A small workaround solution that I have found for this, is to make phone calls via my bluetooth headset or my standard apple headphones. I can make and answers calls without any problems when I use this workaround solution. But if I answer the phone without a headset, the phone shuts down and reboots.

- One other small note, before my phone started to have this problem, I noticed that the proximity sensor was not recognizing when I put the phone up against my face. The screen would remain on.

2) When I try to use the camera my phone shuts down and reboots.

The phone shutdown and reboots every time I perform these actions. It doesn't matter if my phone is at 100% or 1%.

This is very frustrating! Any ideas or things I can try?

Repair options that I've seen on different forums that could be a potential solutions: replacing the battery and/or screen.

Things I have tried to resolve the issue:

- Soft reset

- Reset all settings

- Reset all content and settings

- Reset network settings

- I've removed and reinserted my sim card

- I've removed certain apps that I thought could be causing the problem

***I bought this phone used and it worked flawlessly for the first two months. I live in Guatemala and am using a local network here (Tigo). I first used it in the States over the holidays on the LTE network by H20 Wireless. Then I changed it over to the Tigo LTE network here in Guatemala. I don't think this info matters, but thought I would include it.

Thanks for any helpful info you can give me!!!

⟐ Commented junho 29, 2018 at 14:46 GMT-7

I do plan on fixing the screen however iFixit has been out of stock for screens for a while. I usually have sticky tape over the cracks to prevent more glass from falling out of moisture entering the phone.

⟐ Commented junho 19, 2018 at 7:14 GMT-7

Is there any possibility that the Apple will fix the battery health issue in 11.4 and it will be working with ifixit non-original batteries? What do you think guys?

⟐ Answer accepted maio 18, 2018 at 7:04 GMT-7

⟐ Commented maio 13, 2018 at 19:01 GMT-7

I'm running into an issue with iPhone 6s screen which I accidentally broke its home button flex while i was repairing (refurbish) the screen, the screen is working fine and 3D touch is working but home button is not and have test my home button on other screens and it's working so the issue is actually with the home button cable on the screen , I know it's can be replaced with changing the backlight, I only want to replace the first layer from the backlight, the problem is I need to order one and wait for at least 3 weeks, I'm going to tear it down and try to take one from other screen, has anyone done it?

Thanks in advance

⟐ Commented maio 13, 2018 at 13:37 GMT-7

Now the leftover issue is:

Service Provider option in settings keeps appearing and dissapearing, phone sim card detect fine, goes searching then no service.

IMEI and modem firmware displayed in settings, checked *#06* no problem there too.

Is it okay to reflow the U_WTR_RF transceiver chip because of liquid damage before? Maybe it'll fix the problem?

⟐ Answer accepted abril 10, 2018 at 4:41 GMT-7

⟐ Commented abril 09, 2018 at 7:11 GMT-7

⟐ Answer accepted março 27, 2018 at 19:26 GMT-7

⟐ Edited by author março 16, 2018 at 19:41 GMT-7

Unfortunately CAM_EXT_LDO_EN seems to be missing too, although the pin is shiny and undamaged.

Does CAM_EXT_LDO_EN show up only when camera cable is connected or should I just say goodbye to the main camera ?

⟐ Answer accepted março 14, 2018 at 11:54 GMT-7

It stuck on using and turned off. After trying to turn it on, apple logo appears and then just black screen with backlight on.

When I’m trying to go into recovery mode, it shows just black screen with backlight on.

I tried going into DFU and it success. iTunes sees it and starting to restore, on iPhone appears Apple logo with progress bar, but it won’t start filling and iTunes gets an error 6.

Tried with 2 laptops and 1 pc and 3 usb cables but get the same error.

Tried with 3utools and it starts recovering in DFU, but than it shows an error like “A problem when going from DFU into Recovery mode”.

So I’m guessing that it lost Recovery mode somehow or there is a problem with some components on the motherboard.

Anyone had similar problem?

EDIT: The new information that may be useful is that I tried with another fully charged battery from another working phone and got the same error when restoring, but when I put back that second battery in the working phone, it shows like it’s empty at first, then put it to the charger and the working phone turned on and showed full battery like it was.

⟐ Answer accepted fevereiro 26, 2018 at 4:42 GMT-7

⟐ Commented fevereiro 20, 2018 at 19:04 GMT-7

I have removed the EMI shield for a better view of the circuit board.

⟐ Commented fevereiro 17, 2018 at 8:33 GMT-7

This is the problem when you touch the flex or flip it.

⟐ Comment deleted maio 17, 2019 at 8:16 GMT-7