- Feb 27, 2014
- 3
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Hi guys,
I recently purchased a Lumia 1520 off eBay and I know its an att phone but was under the impression that of you use an att mvno u don't need an unlock code for the phone.
When I put in the sim card it says sim invalid. So I just need to validate and activate service for the sim to be accepted or do I need to unlock the phone even though I'm still using att network.
Thanks guys.
I recently purchased a Lumia 1520 off eBay and I know its an att phone but was under the impression that of you use an att mvno u don't need an unlock code for the phone.
When I put in the sim card it says sim invalid. So I just need to validate and activate service for the sim to be accepted or do I need to unlock the phone even though I'm still using att network.
Thanks guys.
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