Lenovo Y410P No Power Issue

[dqtech]

Motherboard number VIQY0 NM-A031 REV 1.0

on second mosfet PQ302 pin 1-4 got 19v but pin 5-8 only 0.7v and replace new mosfet also same...
i try to jumper wire on pin 4 & 8 and laptop can turn on normally but after few days it happen again and jumper wire is broken split into 2

now i try to jumper again and laptop can turn back on but i want to confirm what possible could be the problem? please help

[SMDFlea]

Re: Lenovo Y410P No Power Issue

Motherboard number VIQY0 NM-A031 REV 1.0

on second mosfet PQ302 pin 1-4 got 19v but pin 5-8 only 0.7v and replace new mosfet also same...
i try to jumper wire on pin 4 & 8 and laptop can turn on normally but after few days it happen again and jumper wire is broken split into 2

now i try to jumper again and laptop can turn back on but i want to confirm what possible could be the problem? please help

Beginner's guidelines
https://www.badcaps.net/forum/showthread.php?t=88758

2. What not to do

2.6. Never randomly bridge MOSFETs/fuse/components
Bridging components can easily lead to the destruction of the board without any way to repair it.
If it's a fuse, replace it with a matching fuse. If you don't, it will not be able to protect the board and if the source of the problem is still there, some other component will go up in flames.
If it's a MOSFET, its purpose is to stop current from flowing through it when turned off, and allow current to flow through it when turned on. It's not necessarily always turned on, otherwise it wouldn't be there. If it's turned off when it shouldn't be, then there is an issue elsewhere in the circuit, bridging the MOSFET won't solve it.