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[Sticky] iPhone 7 Investigation  

 

iTesla
iOracle Moldova
(@idea)
SUPPORT Admin
Joined:5 years  ago
Posts: 7213
11/02/2017 16:04  

The investigation revealed the following information.


About logic board.
There seems to be available 2 different logic boards for this model with this numbers.

Found in US region BRD 820-00188-A
Found in EU region BRD 820-00189-A

The same is possible for iPhone 7 Plus which have other BRD numbers.
Note the differences are most related to network components it reminds me of iPhone 5c and 5s which have same difference.

About glue/resin.
There are 4 types of glue some persist in big quantity some are insignificant, the following is a description of all of them.

  1. Soft transparent glue this is used only in upper part of shield that cover CPU can be cleaned without heat.
  2. Soft glue can be cleaned with 100C or without heat it have brown color, mostly is added around connectors on components.
  3. Hard glue can be cleaned with 170C or 190C it have black color, depending of the location on logic board mostly added for IC's like NAND,Wifi,AP CPU and BB CPU and their surrounding components.
  4. Very Hard glue can be cleaned by scratching starting with 220C it have brown color, mostly used for PMU and surrounding components.

About Shields and metallic frames.
There are x2 shields and x2 metallic frames based on my heat gun this is the following gathered information.

  1. Metallic shield which cover AP CPU and BB CPU can be unsoldered using 200C to 220C which is safe.
  2. Metallic shield that cover network PA's need from 240C to 280C (not safe) i recommend to cut it very careful using dremel or small wire cutters.
  3. Frames that are around PMU and USB IC need from 240C to 280C (not safe ) i prefer also to cut it very careful using dremel or small wire cutters.

In anyway regarding shields and metallic frames it is up to you on how to remove them but not forget better less stress with heat if you not want to run in to non welcome faults.

Edited: 1 year  ago

Do not wait that i feed you with the tea spoon, the site is full of info have patience searching and reading because this is the great way to learn from others.


marco cipriani, Abdul Haddara, soler and 1 people thanked
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iTesla
iOracle Moldova
(@idea)
SUPPORT Admin
Joined:5 years  ago
Posts: 7213
11/02/2017 16:16  

(Trinity) Coils Containing Module.

This part is something new did not expected such development here is a photo of inside coils so you know.
See also Top Side Logic Board IC Part Numbers

Do not wait that i feed you with the tea spoon, the site is full of info have patience searching and reading because this is the great way to learn from others.


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Gelmer Bergsma
Free Subscriber Netherlands
(@12remember)
Inactive Tech Registered
Joined:1 year  ago
Posts: 2
11/02/2017 18:57  

Nice, very helpfull thanks.


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Abdul Haddara
Free Subscriber Australia
(@zarboi)
Eminent Tech Registered
Joined:3 years  ago
Posts: 42
13/02/2017 17:46  

Thanks for this info teacher, good to know before we start getting them in for repair.

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iTesla thanked
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iTesla
iOracle Moldova
(@idea)
SUPPORT Admin
Joined:5 years  ago
Posts: 7213
18/03/2017 21:59  

Update to Trinity Module!

In case you can't find this part in my opinion you can drill careful each of this coils depending of fault you have can solder from iPhone 6s and 6s Plus i am sure they are same.

1x 1st Speaker IC related coil
1x Taptic Engine (Vibrator) related coil

2x Backlight related coils
1x Charging related coil

Edited: 11 months  ago

Do not wait that i feed you with the tea spoon, the site is full of info have patience searching and reading because this is the great way to learn from others.


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iTesla
iOracle Moldova
(@idea)
SUPPORT Admin
Joined:5 years  ago
Posts: 7213
02/02/2018 19:51  

iPhone 7 Touch Screen Module

This part is located on LCD/Touch screen flex, possible similar parts are in the 7 Plus version.

The reason why apple moved this to flex instead of logic board is because 6 and 6p models have touch IC's disease after dropped device.

Do not wait that i feed you with the tea spoon, the site is full of info have patience searching and reading because this is the great way to learn from others.


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