LG U8138 pinouts
The connector/pinout information may be applied to the LG (show all pinouts) model U8138
LG U300, U500, U880, U890, U900, U8110, U8120, U8130, U8138, U8150, U8180, U8200, U8210, U8290, U8330, U8360, U8380, U8500, U8550, CU400, CU405, L1100 cell phones cable connector pinout serial and USB (e.g. MA-8270P) cables information
LG 81xx flash/unlock cable pinout