Technical Support LENOVO LEGION Y720

[ABEBE]

I RECIVED LENOVO LEGION Y720 ITS BOARD NUMBER IS NM-B163
ITS PROBLEM
IT STARTS DIRECTLEY WITHOUT POWER AND IT BRINGS NOVO BUTTON MENU IT START NORMALLY WORKS NORMALLY , CHARGING IS OK EVERYTHING IS FINE
THE LONG PRESS BUTTON OFF THE PC ( IT WILL GET OFF WITH THE NORMAL POWER OFF PROCEDURE TOO) THE PROBLEM IS NEXT TIME TOO START ON THE CHARGER PLUG OR THE BATTERY BE SHOULD RECONNECTED OTHER WISE IT DOESNOT START ( BOTH SHOULD BE UNPLUGGED )
WHAT I DID
REPROGRAMM ALL THE BIOS FILES ( EVEN CLEARD FILE)
CHECKING RTC CKT ( ALL ARE FINE )
CHECKING THE BUTTON ( IT IS OK )

ANY HELP PLEASE

 

[Ahmad Safari]

If the switch button is connected to the board with a felt, it is better to separate the felt related to the switch button and test again.
Remove the hall sensor.

 

[ABEBE]

THANK YOU FOR RESPONSE , I ACTUALLY TEST MECHANICALLY IF THE SWITCH IS WORKING OR NOT BY PRESSING , IT CONNECTED TO GROUND WHEN I PRESS THE THE BUTTON, DO YOU THINK REMVING THE HOLE SWITCH MAY HAVE A SOLUTION SIR ?

 

[Ahmad Safari]

It is possible to solve the problem by disconnecting the sensor. This problem can be caused by various parts, such as BIOS or IC failures, especially IO and PCH...
Before, I told you to test this thing that came to my mind.