Redmi 9A Charging Problem Solution – OVP IC Bypass Jumper Guide
Next-gen repair secrets revealed with diagram and step-by-step solution.
Why Redmi 9A Fails to Charge?
The Redmi 9A is a reliable budget smartphone, but charging failures are a common problem. One major cause is a faulty OVP IC (Over-Voltage Protection IC), which is designed to block unsafe voltage. When this IC fails, the phone may completely stop charging.
Symptoms of OVP IC Failure
- No charging even with a good charger and cable
- Charging symbol shows but battery does not increase
- Heating near charging IC or OVP area
- Charger disconnects repeatedly
Repair Diagram & Jumper Solution
The diagram above highlights the faulty OVP IC section and shows the jumper route (red line) that bypasses the IC, restoring power flow to the PMIC.
Step-by-Step OVP IC Bypass Guide
- Test: Check input and output of OVP IC with a multimeter.
- Remove IC: If no output, carefully desolder the OVP IC.
- Apply Jumper: Connect wire from input to output as per diagram.
- Test Phone: Plug charger and confirm normal charging.
Precautions
- Bypassing removes protection — always use a high-quality charger.
- Ensure no solder bridges or shorts.
- Confirm continuity before powering the device.
Conclusion
The OVP IC bypass jumper solution is an effective fix for Redmi 9A charging problems. It’s a quick way to restore function when replacement ICs are not available. For best results, use clean micro-soldering practices and reliable chargers.
