Originally Posted by bcrowie
yes.... the sim from a 7520 will work if you just switch it into the 7100i. i just did it a week ago because i bought a new 7100i.
but i think to recieve your emails you have to go into your settings in the BIS and change your device PIN and IMEI. thats what i did and it works great
Please tell me how you did this. When I switch sim card from my 7520 to 7100i, I get a sim card error message and nothing gets synced.