Uniwell EX-560 Electronic Cash Register "need sp" Questions

SP and pres456 butons simulteneously and plug on while still pressing, Nothing happened Your problem may be more serious than just an IR clear. It may need a dealer to fit a new battery. For those who

the register needs to reprogram,but am not sure what to do at this time Turn you key to SP and enter 9906 then x/time then 1 then decimal point. Press CLERK/id then 1 then CLECK/id again