I have a BQ Prusa i3 hephestos xl with firmware 2.51. The firmware is in HEX format and does not open with Arduino. After three weeks of exhaustion, the only one who managed to find that Arduino can open is a Merlin 1.4.2 but the folder "Configuration.h" does not exist.. I only find "Configurationstore.h".. Before I throw it all away, can you help me find the right firmware for my printer? I'm practical of electronics, but being able to run this malicious object is not everyone...
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