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110-15IBR Schematics and BIOS (ideapad) CG420 NM-A805 Rev 1.0

hi admin. does this ec bios working? why after i use it, laptop became cannot turn on?
before can turn on, but no display. if i reprogram old bios again, can turn on, but still no display.

it8886he.
send old i check
 

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