If USB port cannot be read then replacing the I/O board may be the solution, this part may also be used to repair issues with headphone jack, NOt receive the signal to boot up for IdeaPad Gaming 3 15 Gaming Laptop series.
NOTE: Ensure to connect IO marked side of the I/O-board cable to the I/O daughter board and the side marked MB to the system board.
FRU: 5C50S25225
Compatible Part Number(s):
LS-L171P
435PCP38L01
Condition: Open Box, New and Original, unused in perfect condition.
Reference Compatible with Laptop models:
. IdeaPad Gaming 3-15ACH6 (82K2/82MJ)
. IdeaPad Gaming 3-15IHU6 (82K1)