I recently bought an e220 three.co.uk modem. I already have a PAYG sim which I use for mobile broadband on my laptop by using my phone as a modem.
The sim supplied with the e220 modem seems to work fine as when I plug is in, I can connect and browse three.co.uk just like on a phone.
When I insert my old PAYG sim into the modem and plug it in, it boots up fine, showing hte signal strength etc, however It will not connect.
Any ideas on how to get my new moden to connect when using my old PAYG sim. i could top up my new PAYG sim but I already have plenty of GB's to use on my old PAYG sim.