Solution to unsuccessful cellphone charging When the smartphone fails to charge the battery, you should exclude the factor that charger and USB power interface are bad connection. You should focus on the charger, power, power supply interface, current detection resistor, charge control chip and so on, to eliminate the trouble.
Now I will introduce the failure of charging failed and give you the solution. Check charger and power interface or USB interface for good connection. Reconnect the charger. Tips: Charger with cellphone connection is bad, it will cause mobile phone charging failure. Check charger for damage. Replace the charger.
Check if the battery is aging. Replace the battery. Check the power interface for oxidation or contamination. Use absolute alcohol to clean and oxidizing the dirty power interfaces. Check if the current sense resistor is damaged. Replace the current sense resistor. Tips: The current sense resistor is used to detect the charge current of a cellphone. The charging current from the charger is charged by the current sensing resistor to charge the battery, therefore, the resistance is damaged will cause no charge fault. Check whether the charge control chip weld or damaged. You should reweld or replace damaged charger chip. Tips: The charge control chip is used for charging the battery and detecting the value of the charging voltage, The charge control chip is the core control element of cellphone charging, so the damage of charge control chip will lead to unsuccessful charging. Hoping you can benifit from it. More information can be found at Vip Fix Shop Team.