By Nianfeng Li, WU6P Mar 20, 2021 nian.wu6p@gmail.com Abstract    This report documents the process of fixing one Xiegu G1M amateur radio transceiver black screen issue, including the debugging process, root cause analysis and after-fact recommendations. 0. What is Xiegu G1M   In short, it is a HF transceiver on Quad Band (80M, 40M, 20M,…Continue reading One G1M Black Screen Issue Repair Report