The 6280 is a pretty new phone, it should have no problems whatsoever with 1 gigabyte memory cards.
Originally Posted by ryanwilliams479:
“I dunno but I have a Nokia 6230 and got told it only supports a 128mb card but i've got a 1gb card in it and it works fine so i should imagine yours would as well but i cant say for sure.”
Mobile manufacturers usually announce that a phone "supports up to" whatever the limit is, but this just means that they designed the phone with that limit in mind, so you shouldn't expect any larger cards to work.
In practice, most of these phones will work with cards much larger than their official limit BUT they often slow down with cards that are larger than the limit because they weren't designed to cope with such sizes.
So basically... try going over the official limit if you want, but don't expect it to work as quickly as cards under the official limit.