A test point, also known as a diagnostic mode or engineering mode, is a special feature built into smartphones that allows developers and testers to access advanced settings and perform various tests on the device. The test point is usually hidden from users, but it can be accessed using a specific code or combination of buttons.
Disconnect the phone's battery connector from the motherboard. (It is highly recommended to perform test-point flashing with the battery disconnected to prevent short circuits). lg k52 test point
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