Faults Finding

DC Power Supply Ampere Reading Fault Analysis

NO	Power Mode	Ampere Reading (A)	Status	Probable Fault Area
1	PWR Press	0 – 0.060	Fluctuating / Release Time 0	Voltage rails, PMIC, CPU section
2	PWR Press	0.050 – 0.120	Stuck	EMMC health issue or software corruption
3	PWR Press	0.639 – 0.640	High Ampere Fluctuation	Check overheating component or shorted IC
4	Auto	3A	Stuck	VBAT / VPH_PWR short circuit
5	PWR Press	0.004 – 0.005	Fluctuating / Release Time 0	LDO line or voltage generation issue
6	PWR Press	0.120 – 0.200	Stuck / Release Time 0	Software issue or EMMC not connected
7	PWR Press	0.149	Stuck	RAM section disconnected or faulty
8	PWR Press	0 → 0.116 → 0.255 → 0.291 → 0.269	Fluctuating	Check charging current and battery ID line
9	Auto	0.001 – 0.003	Stuck	Power IC fault or charging IC fault
10	PWR Press	0.001 – 0.003	Stuck	Power IC fault or charging IC fault
11	PWR Press	0.020 – 0.036	Stuck / Release Time 0	CPU failure
12	Auto	0.001	Stuck	Secondary line short or leakage current
13	Auto	0.002	Stuck	PA capacitor or 4G PA section issue
14	Auto	0.003	Stuck	Power IC fault
15	Auto	0.026	Stuck	Secondary power line short
16	PWR Press	0.036	Stuck / Release Time 0	Secondary line short circuit
17	PWR Press	0.132	Stuck / Release Time 0	Check USB detection in device manager and software
18	PWR Press	0.136	Stuck	Check EMMC health or perform EMMC reballing
19	PWR Press	0.002 – 0.005	Fluctuating	LDO instability or bulk power supply issue
20	—	0.036 / 0.05 and below	Fluctuating	Check all voltage rails and power sections