(12C/11C) Changing the firmware

[NazarK]

I did get this 11C for about 13 dollars from OLX ("basically ebay") and thought it was an amazing score. There isn't really any way to get a refund though and the seller seemed to have no idea what he had. I asked him about it and he just said "I got this imported from the UK so idk".

Yeah this isn't a recent 12C since it's running on 3 small 1.5v button cells. Has anyone ever made a sticker set for the 12C? I got a 17bii as well (thankfully without any motherboard madness) so I guess this 12C frankenstein is just good as a 4 function rpn calc