S/W - Samsung SM-A320F Svc Manual

Troubleshooting
Power on but no operation (freezing)
Step
1 Confirm the defect symptom
* * Analyse reasons of No-Power using the
2
Power & Current test jig.
2.1 Try to do the boot recovery.
It's possible to enter the download mode?
3
Check if it's rooted.
3.1
4 Enter the safe mode, and check if powers up.
Perform full reset.
5
6 Upgrade software to the latest version.
7 Check the voltage of C5029, C5026 (eMMC)
** Usage guide of the Power & Current test jig has been uploaded at GSPN. (Power & Current Tester_Rev4_150716.pdf)
Check point
- This document cannot be used without Samsung's Authorization -
Result value
-
PASS
Leakage Current fail
Power On Current fail
Solved
Not solved
Yes
No
Rooted
Normal
Solved
Not solved
Solved
Not solved
Solved
Not solved
C5029 = 1.8V
C5026 =2.85V
If not the correct value
Defect point
-
Go to the step 1
Refer to the No-power Troubleshooting
Go to the step 2.1
Boot area in S/W
Go to the step 7
Go to the step 3.1
Go to the step 4
OOW
Go to the step 4
rd
3 party Apps.
Go to the step 5
rd
S/W or 3 party Apps
Go to the step 6

S/W

Go to the step 7
PBA
Replace the eMCP(eMMC)
Confidential