One more issue with unlocked phone - help please!

[ssledoux]

Okay so I did my unlock through AT&T and it says you can set it up with a different carrier by installing a new SIM card and following through with setup. The person that bought it said they put a SIM card in and took it to Verizon and it’s not able to be set up.

What the heck do I do about this? I absolutely have the unlock information showing it was done, and have send that, along with the instructions, to the buyer.

I’m frustrated, and doubt I’ll ever sell a dang phone again (though I’ve NEVER had an issue in the past), but I want to make this right of course.

 

[jetsam]

What is the exact model of the iPhone you sold? What is the exact error message the buyer is getting?
If it's a 7 or 7 Plus with the Intel modem, it's GSM only, and won't work on Verizon.

 

[ssledoux]

Well, it’s a 7+. I had no idea it wouldn’t work on another network if it was unlocked.

 

[BugeyeSTI]

Well, it’s a 7+. I had no idea it wouldn’t work on another network if it was unlocked.

It will work only on GSM networks(AT&T or T-Mobile). Verizon and Sprint is CDMA..

 

[Audit13]

It's the buyer's responsibility for ensuring compatibility and it looks to me like the buyer didn't do his/her homework before buying.

 

[chscag]

The Apple sim free unlocked version of the 7+ will work on all 4 major networks: (GSM and CDMA). The AT&T and
T-Mobile models unlocked or otherwise will only work on GSM networks.