[Galaxy Note 4 Android Development (Snapdragon)] tripLr:
I had heat problems. Most of the time flashing temp got hot. If you look at my posts here it was really buggy.

I probably crashed my emmc because I was trying to fix my phone by flashing the newest build both clean and dirty. While in the 90s, or plugged in etc.

Everything was buggy. No fingerprint , crashing Bluetooth, yadda yadda everything from about a month ago to 2 months ago went from crashing to unusable as a daily driver. [MENTION=6005084]ripee[/MENTION] and others cautioned and reminded about flashing while hot. Some user noted to put phone in freezer, then flash.

So my new routine.

Download ROM

Newest gapps

Charge phone wait to cool down flash in am or after phone in fridge or freezer. Note, put phone in clear ziplock bag, so condensation doesn't get moisture inside the phone. Even the little bit of air in the baggy will have moisture in it. Use a DRI PAC from a pill bottle or suck out all the air.

So I am doing a long term stability test. My new mobo and first root after the install I am still running 0823.

Way more stable

Fingerprint works.

Battery life a little better.

Some lag and hesitation while unlocking phone and opening apps. I have not tweaked any settings.

Disclaimer.

I found 4 missing screws when replaced mono. 2 were on the charging port / fingerprint sensor area, and 2 were near the CPU / ram area.

There are really tiny ribbon cables and connectors in this area.

Could in have had loose and dirty connectors for 2 years or more ? You bet.

Even humidity , dust and including salt dust could have got in there. Its in my pocket, I drive truck with the window down even in winter. Salt on roads anyone?

So no, I don't expect a near 4 year old phone or more, can be better with a newly compiled ROM with a dirty or loose mobo.

But I did.

Should we be thinking of maintenance?

What about cleaning the existing board? What cleaner?

Process? How to protected exposure and exposed circuits?

After all newer phones are water resistant and have no headphones.

How many times has my phone been in my car when it was 20 below on the charger in Montana north Dakota, and Colorado, then I took it inside? Too many times to count. So yes I probably condensed moisture in my phone.

So, as a trucker, I know for a fact salts never are removed completely unless cleaned meticulously from headlight and tail light connectors, and trailer wiring, corrosion never reverses itself, so why did I expect my phone to be any different?

In conclusion, a person could easily replace all the electronic components, mobo, USB, cameras, etc and clean and protect all the parts, and Should get rid of a few bugs.

I know for a fact some bugs I had in OEM 6.0.1 were never fixed in lineageOS 14, or 15 , but now are fixed or eliminated

But since I never baselined stock touchwiz I can't say for sure what.

Unless someone can or has deodoxed and made a root-able stock I can try..

Here is my whole process and notes I used.

There is some links to YouTube videos on the teardown of this phone.

I hope this helps. Just musing.

https://xdaforums.com/note-4-verizon/general/noobs-guide-verizon-galaxy-note-4-t3831154

---------- Post added at 05:29 AM ---------- Previous post was at 05:24 AM ----------

What error you get?