If the battery charging failure is suspected to be caused by a chip problem, the following steps are recommended:
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2. Check whether the chip is damaged or short-circuited. If the chip is damaged or short-circuited, the chip needs to be replaced.
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3. Check whether the chip needs to be reprogrammed. If the chip needs to be reprogrammed, it needs to be programmed with the right programming tools and software.
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4. If the fault persists, contact the chip supplier or manufacturer for technical support or replace the chip.
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In short, if the battery charging failure is suspected to be caused by a chip problem, it is necessary to carry out careful inspection and analysis, and take appropriate measures to solve the problem.
The exposed surface of the magnet charging interface will be designed with an anti-static diode and a capacitor for rectifier and voltage regulation. Under normal circumstances are anti-static diode reverse breakdown. But in your case, it should be that the charge and discharge chip in the power management system is broken or the power management chip is also burned. Find its circuit diagram on the Internet, find the corresponding two chips, the latter is large, the former is small. Buy components on Taobao through silk screen printing. You can replace it yourself.