How do you get the front faceplate off a Nokia 1650?

[Le_Funky_Juicebox]

I'm quite partial to my little 1650, but I would like to be able to get the faceplate off so I can do that thing where you put crepe paper or cellophane ect under the keypad to change the colour of the buttons. I can't just take it off (evidently I've given that a go and it hasn't worked) and i don't want to force it in case it breaks (there aren't heaps of replacement face plates for sale in New Zealand). Any tips/hints/instructions? And no, it isn't in the manual.