N7100 overheating with wifi dropout - hardware problem topic

I did a search and most of the Wifi problems seem to describe knox security and bootloader issues.

Here, I wish to describe/discuss what seems to be a hardware problem in my n7100 note 2.

This occurs with stock and dr. ketan rom on 4.4.2 even with wifipatch applied (technically not needed).

OS 4.4.2
boot loader: n7100ZSUFNL1 (I believe this bootloader should be ok - correct me if I'm wrong).

model GT-n7100


ISSUE

- the wifi icon doesn't turn on or wifi drops out when the system is running hot. This happened the first time after I flashed a ROM/upgraded and I thought it was a ROM issue.
- however, more recently, I have managed to keep the wifi signal absolutely stable when i open up the back cover and run a fan blowing on the back/cpu area at the top back of the phone around the camera area.
- with fan cooling => completely stable

- without fan cooling => drops out when system under load or randomly.


for some reason, omega rom had a problem for me where it kept disconnecting irrespective of the heat



I have seen discussions of our phone overheating but this seems to be a hardware problem with the wifi module.



I presume that there may be micro fractures with the wifi chip solder (seems to be a theme in electronics) that may be causing wifi problems with overheating.

This happened with an iphone 4 voice audio processing chip once for me and the "online community" had figured out a fix by taping in a "pressure mount" for the chip.

//blog.lovefone.co.uk/iphone-4-faulty-microphone-audio-chip-problem



Any suggestions on taping in a heatsink or pressure against the wifi module?

Help would be appreciated. Just adding to the knowledgebase in the community.