1. The number of data line plugging reaches or exceeds the design number. In the early days, the plug-in life of USB interface was designed to be hundreds of times, but now it can reach thousands of times. The problem with the interface is that the spring of the plug is in poor contact, so it can't be charged. If you use it carefully, you can use it for a long time; Otherwise, it's better to buy a spare as soon as possible.

Service life of data line

2. The bending of wire body causes fatigue of copper core and other materials, which is easy to break, resulting in failure to charge. This situation is particularly easy to occur at the habitual bending of the wire or near the plug.

3. If the plug is rusted, try wiping it with alcohol cotton to solve the urgent problem.