I was recently trying to update firmware via arduino and everything seemed to be working until the end it flashed that upload completed but my screen went to two black bars and the alarm went off.
This was a previously using configuration.h file and the only thing I changed was the PID figures and tried to upload.
A10M firmware error and alarm
Re: A10M firmware error and alarm
Hello, sorry for the late reply. Is the problem solved?
You need to upload the correct firmware.
You need to upload the correct firmware.
-Keep your mind and try to test it. 
-Everything will be fun！-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
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-Everything will be fun！-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!