FLY FS504, Руководство по обслуживанию

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FLY SERVICE SUPPORT
TROUBLE SHOOTING GUIDE
Test flowchart of can’t power on (main)
Does battery
have power?
Charge battery for over 30
minutes with phone
Switch on phone again
Is phone
lighted on?
End
Can phone
switch on?
Phone is dead, CPU of
Phone is dead
Upgrade phone SW
Replace PCBA
Can phone be
upgraded?
Switch on phone
Can switch on
phone?
Replace PCBA
End
End
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Can’t switch on