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fj 52 firmware 5.4 service code

J

jonnyc

New Member
Hi just bought a new head but i am unable to get into the service mode since i update firmware to 5.4 can anybody please help and many thanks in advance
 
G

goldlight

service engineer
service mode

Turn on the sub power switch while pressing [left ], [ down] and​
[ right ] keys to enter the SERVICE MODE.:U Rock:

[left ], [down], [right ] + POWER ON = service mode
 
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