Why won't compatible Epson XP202 cartridge be recognised by printer

Question : Why won't my new compatible Epson XP202 ink cartridge be recognised by the printer ?

My current 3 possible answers are

Possible answer 1 :
Give the ink cartridge a shake before inserting

Possible answer 2 : I found that the cartridge ink had to be 'charged' by the printer. Once this was done the 3rd party cartridge worked. I found the 'charge' function in the 'how to' button of the Epson program pop-up 'status monitor.

It feels like Epson does everything it can with it's software on your computer to stop a 3rd party cartridge being installed. I am guessing that when a genuine Epson cartridge is installed it automatically has it's ink 'charged' by the printer and works immediately.

With a 3rd party ink cartridge it seems the ink was not charged automatically. I was about to give up but went through the'how to' box in the Epson status monitor pop-up. Here at the end was a function to 'charge' the ink. When this was done it worked.

Possible answer 3 :
There is a 'physical' way to do answer 2 using the buttons on the printer. I found it in this confusing page link

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links
Amazon UK search :  Epson XP202 ink