HI. I live in Taipei. My English is not good. The following is translated by GOOGLE. I want to share my experience of changing the motherboard. SONY OLED models after android_APK-TV.A8G, such as google_ZIP-TV..A8H.A9G.A9F.A80J.K.A90J, etc. Whenever you change the main board, the main board will lock main board and 8 times blinks when using different models (I tried to decode EMMC with RT809H programmer). So don't try to do this again. I emphasize that the only main board that can use A8G is of course you have to change the main board power supply or directly use the full set of A8G main board...