JBL CHARGE 2 PLUS (serv.man7) Service Manual ▷ View online
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4、Click the “Browse ” and select the document of you want to upgrade:
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You will see the display of “Successful Upgrade”, then click “OK”
If you see the display of “Failed Upgrade”, then click “OK” and go to Step1 upgrade again.
If you see the display of “Failed Upgrade”, then click “OK” and go to Step1 upgrade again.
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Trouble shooting Chart
Keys do not work
Led lights do not work but the keys work well
Some keys do
not work
Go
Yes
Connect well
No
Yes
Replace the key board or cable
Check 15pin FFC cable of connect key board
to main board is connect well
Change another key board for
Check the
main board ok or not. And you can also
replace the 15pin FFC cable for comparison.
Replace main board
No
Some led lights
do not work
Go
The led light maximum possible was damaged,
Change led light for comparison, otherwise
replace another key board.
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