If the Mi Cordless Screwdriver 3.6V can't be charged, please refer to the troubleshooting methods as follows:
1. Ensure that the power outlet you're using is working properly. Plug another device into the outlet to confirm whether it's functioning correctly;
2. Check the charger for any visible damage, such as frayed wires or broken connectors. If you notice any damage, refrain from using the charger and consider getting a replacement;
3. Ensure that you are using the correct charging adapter and cable that came with the screwdriver. Using an incompatible or third-party charger may not provide enough power to charge the screwdriver properly;
4. Make sure the charger is securely plugged into both the power outlet and the drill. Sometimes, loose connections can prevent proper charging;
5. Confirm whether the environment temperature is too moderate. The activity of lithium batteries will decrease in low-temperature environments. If the temperature is too low, please move it to a warmer environment for an extended period before charging;
6. If the screwdriver is over-discharged, please charge it for an extended period;
If the above troubleshooting methods can’t resolve the issue, please contact our local official service center or your seller for further assistance. They will help you in this regard.