Hi, I have a grey 8530 from Telus, and my gf has a pink one. I have noticed in mine the whole keys light up in the keypad. On my gfs, just the numbers/symbols light up. Like the light shines through the keys in mine and the letters are black. On hers, it is just the letters that light up white. I really would like to get mine like hers. would I have to buy a new keypad? does it have to do with the colour? or is there differences between 8530s?