I have the Z11, and have loaded firmware made by the manufacturer only. Do I have to do anything special to load your firmware onto the miner, and do I have to do anything special to load a regular version afterwards from the manufacturer? I haven't seen clear instructions, and I'm new to custom firmware.
you will have to unlock the miner with a SD card first. The Sd image can be found on the first post of this thread. After that you can go back to stock by upgrading from the miners gui