Quick 861dw does not save channels

Hello friends, my quick 861dw stopped recording the channels with the calibrations that I do, it even calibrates and saves, but when I turn it off and on and it loses all the programming that was carried out, does anyone know what it could be?

Sorry don’t have this station. Does this particular model have a coin cell battery inside? or maybe a super cap or something?

I opened it and found no battery like a cr 2032


Can you take a closer snap of the front panel PCB, If theyre using a cap for this it’d likely be there