Blu Studio J1 - Connectivity and Performance Fault Diagnosis

TP issue
Start
Check TP is
damaged or
not
YES
Replace TP
No
Check software version?
And update new software
No
Check
Connector J0900
no damage
YES
OVER
YES
Change J0900
Check
VIO18/VGP1
YES
Change U0401
No
Check U1001
YES
Change U1001
Replace Main PCBA