Hello, I'm trying to flash Lubuntu but the flashing fails with: # Pressing POWER, BOOT and MASKROM to enter MASKROM mode $ sudo upgrade_tool uf MiniLoaderAll.bin argc=3 Loading loader... Support Type:RK330C Loader ver:1.09 Loader Time:2018-06-25 14:05:25 Creating Comm Object failed! Meanwhile, if I ...