[LAB] Tester: Zoyi ZT-DQ02 LCR

While the device is powered off, press and hold the X/D/Q key, then simultaneously press the power button until the screen displays “USBBoot.”

Connect the device to a computer using a TYPE-C data cable. The computer will recognize it as an LCR disk.

Copy the prepared firmware upgrade file into the LCR disk. The device will automatically start the upgrade process. Do not perform any operations during the upgrade.

Once the upgrade is complete, the screen will automatically switch to the measurement interface, indicating a successful upgrade.