[BabeH]

Do you know how that workshop clone the EZS !?
De-solder then do read/write in eeprom writer ?
Or just de-soldering the rom and eeprom then solder to another ??

Obviously it is bad clone, has been written corrupted data, or,
if used de-solder and soldering to move chips, they just damaged the rom or eeprom.

If you have backup copy of EZS data,
program another EZS with MB key tool (all key tool in market should able to do that, process with knowledge).
If you don't have any backup data, the repair and recovery process will be difficult.