5130 / 2700c / 2690 hanging step by step solution update 10000%

1st remove camera and check
2nd remove mmc ic and check
3rd remove blue tooth ic and check
4th rehot betty and check
5th rehot avilma and check
6th replace cristel ic near cpu
7th replace betty and check
8th replace avilma and check
and last rehot or re ball cpu
post result
dont forget to press