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Posts: 114
Registered: ‎01-19-2013
Location: AT
Views: 63
Message 1 of 1

Yoga 15 does not start (LED comes on for 3 seconds then off again)

Today I replaced a broken screen hinge on my Yoga 15 but after reassembly the device does not switch on anymore.

When I hit the power button the i LED on the ThinkPad logo comes on for about 3 seconds, no activity on screen or fan and then switches off again.

When I plug in the power the i LED flashes twice and the third blink is cut short (like 2 1/2 blinks).


I have already tried the following things


 - unplugging AC, battery and CMOS battery (with 60+ seconds pwr button hold thereafter)

 - unplugging and replugging HDD, SSD, RAM banks, screen connectors coming from left and right hinge

 - holding pwr button with battery and/or AC for 60+ seconds

 - pressing pwr 10 times in rapid succession before press/holding for 60 seconds


I'm at a loss what else I could try or what I could have possibly done wrong during the hinge replacement.


Any advice is desparately welcome




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