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With the rapid development of shared charging services, it is easy to find various types of shared chargers in public places such as internet cafes, hotels, and leisure clubs in big cities.

Because it does not require a deposit and is easy to use, it is loved by many users. With the popularity of shared chargers, there are also many methods online on how to crack shared chargers, aiming to meet your charging needs without paying any fees. So is the QR code charger really so easy to crack?

There are several methods for cracking online communication, including replacing circuit boards, modifying circuit boards, etc. Among them, replacing circuit boards is very impractical due to cost issues, so this article only analyzes the problem of modifying circuit boards with the lowest cost.

The most common way to crack it is to modify the control signal on the shared charger circuit board, and achieve the effect of starting the charging service without passing through the server by modifying the pins. This approach is theoretically feasible.

But In fact, every manufacturer will implant detection functions into their circuit boards, mainly to monitor the power supply status, prevent abnormal leakage and other abnormalities, and detect the current size of the equipment to prevent equipment damage caused by their own abnormalities; At the same time, the connection status between the device and the server will be checked. If no signal is received from the server, the charger itself cannot start. So the so-called cracking is unrealistic

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