note 4 no power
how are you my friends
I own 3 samsung note 4 N910F
And each time has the same problem
On left screen of power supply always remain block at 0.14
power ic problem ???
Can you help me please thanks
Check the vbatt line first to make sure there is no short on it.
Test for heat out of a component. I do this by plugging in the battery and charge port ans then connecting to a charger. I generally find that when a pmic has gone in a samsung, an inductor gets hotter than the IC. Just use schematics to trace it and see if it does go to the IC.
Most samsung service manuals suggest changing pmic with power problems.
If you get stuck, let me know
I've got stuck on the same part as OP of this topic.
At the fact I've got 2 mobos of N910F version and one get stuck on about 150mA and the second on about 40mA after shorting "power button" pins.
Is there any schematics where I could find pmic chip or a name for it? If it is near EMMC memory it could overheat as RAM does.
I hope that someone gets to this.
Diagnosisis this issue properly on any device would require a more step by step approach.
However for the note 4 specifically I have seen 3 boards this year that all pull 0.15A from a power supply and do not charge batteries or show any signs of life. Two of those we repaired by replacing either th ET3152 charging controller IC or the PMA8084 Power management IC. Unfortunately I see we ordered both of these parts this year and it's been awhile, so I do not remember which of the two was eventually used. I am certain two phones had identical IC failures though.
The third phone we ran out of time on and never tried to fix.