Help no 4G

[Harold Burkholder]

Yesterday I did a firmware update to my galaxy sii skyrocket. Before I did that, I had 4g. Now I do not. I called at&t. I was told my sim card is old and needed a new one. I went to an at&t store, and they said it was ok, but could not explain why I can't get 4g. I have an unlimited data plan. Can anyone help?

 

[Golfdriver97]

Yesterday I did a firmware update to my galaxy sii skyrocket. Before I did that, I had 4g. Now I do not. I called at&t. I was told my sim card is old and needed a new one. I went to an at&t store, and they said it was ok, but could not explain why I can't get 4g. I have an unlimited data plan. Can anyone help?

Welcome to the forums!
Have you tried to update the PRL and Profile under Settings>About Device>Update Phone?
I am not with AT&T, so you may/may not have these options.

 

[Harold Burkholder]

I don't have that option

 

[Lawrence of a Labia]

Try going to Settings > More Settings > Mobile Networks. Then, check to see if LTE/GSM/WCDMA is selected.

 

[Golfdriver97]

I don't have that option

See above post

Sent from a Slim 4.3 S3