R rybell Prominent Jun 13, 2017 1 0 510 Jun 13, 2017 #1 I used and bought my -phone with sprint and my daughter has at&t she needs a phone At&t said it is compatible because it does use a sim card, sprint has already unlocked it however phone says invalid sim, is there another reason why its not working.
I used and bought my -phone with sprint and my daughter has at&t she needs a phone At&t said it is compatible because it does use a sim card, sprint has already unlocked it however phone says invalid sim, is there another reason why its not working.
Solution Reynod Jun 13, 2017 Hmm ... try another SIM from another fone ... but first clean the sim using an eraser on the little gold contacts.
Hmm ... try another SIM from another fone ... but first clean the sim using an eraser on the little gold contacts.
Reynod Splendid Mar 26, 2007 1,755 2 24,115 Jun 13, 2017 Solution #2 Hmm ... try another SIM from another fone ... but first clean the sim using an eraser on the little gold contacts. Upvote 0 Downvote Solution
Hmm ... try another SIM from another fone ... but first clean the sim using an eraser on the little gold contacts.