Blu Studio J1 - Page 37

Not recognize SIM card
Start
Update new software or
Resetting factory
No
Check SIM connector
whether damaged?
YES
OVER
YES
Change the SIM
connector
No
Check power
voltage is not ok?
YES
Change U0401
Check
SIO/SCLK/SRST is
not ok?
YES
Change U1001
Replace Main PCBA