It is erasable, the correct version of the Canon Service Tool has just not been "published" by anybody yet; and probably never will be, due to the low value and interest presented by these budget printers...
Some office & stationery shops around the country do provide this service of resetting...
Hello,
The last few months, I have been banging my head against the wall trying to reset the ink absorber count on my Canon MG2450.
I bought a new ink absorber for it on AliExpress, but, as you could imagine, the printer's software didn't care.
Before you waste your time reading this, to fix...