Trace the coaxial antenna pads through the antenna switch module down to the transceiver IC. Common Faults and Troubleshooting Steps Suspected Component / Circuit Testing Procedure Dead Phone (No Current Draw) Main PMIC / VPH_PWR Line
When a Redmi 13C arrives on the repair bench with a hardware fault, a systematic lookup approach using the schematic prevents unnecessary component swapping. Case A: No Power / Dead Phone Check VBATcap V sub cap B cap A cap T end-sub VBUScap V sub cap B cap U cap S end-sub schematic redmi 13c extra quality
Extra quality schematics reveal the precise resistor dividers for charge current setting. You will find: Trace the coaxial antenna pads through the antenna
