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820-00165 chime noise non stop

Thread starter yobad
Start date Jan 19, 2021

Y

yobad

Member

#1

I tried to change SMC and did ME region, when i tried to start the device it stuck on chime noise(infinity loop) any suggestions what can i do?

2informaticos

Administrator

Staff member

#2

Did you try disconnecting keyboard?
Check SMC_ONOFF_L level.

Y

yobad

Member

#3

yes i did always same problem

2informaticos

Administrator

Staff member

#4

SMC_RESET_L steady high?

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