Ensure you know exactly which ATmega chip is inside. Clones often swap components.
TransistorTester Firmware Flash With Arduino - Instructables lcr t7 firmware updated
Reviving Your Tester: The Ultimate Guide to the LCR-T7 Firmware Update Ensure you know exactly which ATmega chip is inside
TransistorTester Firmware Flash With Arduino - Instructables
Reviving Your Tester: The Ultimate Guide to the LCR-T7 Firmware Update