01-27-2018 1:57 PM
can't turn on hotspot after unlocking Samsung s iii mini from at&t and going to t-mobile.
Get message that mobile data is not available or invalid sim.
Did a device backup and a "reset only" and problem still exists.
01-27-2018 2:21 PM
The hotspot function on ATT branded phones will only work on ATT. Sorry but the hotspot won’t work on T-Mobile, only on ATT.
02-05-2018 10:05 AM
What makes a Samsung phone purchased through at&t, an at&t branded phone? Why does everything else work except for hotspot? Is hotspot being locked by at&t? If so, how can I get it unlocked or back to a stock Samsung phone?
02-05-2018 10:38 AM
You have ATT’s version of the Android operating system which includes the code for hotspot. Short of hacking your phone to replace that with a generic Android release, I’m pretty sure there is nothing you can do.
02-06-2018 6:12 AM
Hmm...Interesting that all other features of the phone get unlocked except for hotspot. Looks like I need to flash the phone back to stock and go from there.
05-06-2018 5:55 AM
01-22-2019 7:11 AM
I downloaded Settings Database Editor from the appstore (free). I promise this isn't a shill for that app. SQLite editors work too, but they cost money and they require root permission, neither of which did I use for this.
Change the setting called tether_entitlement_check_state from the default (5) to 0. Some people said -1 worked too.
This may be all that needs to be done normally. However, for me the hotspot worked, but nothing had internet access when connected save the v20 itself. I went to settings -> networks ->more and disabled the Enhanced LTE services. For whatever reason, that setting was screwing up with with hotspot. I also did a speed test and the speeds for with and without the enhanced LTE services were about the same (80mb/6mb), so no worries there.
03-15-2019 9:45 AM
I just tried @fire7729's suggestion. I had the same issue with an LG G3 phone. I had a previous unlocked LG G3 T-Mobile phone that had no issue with hotspotting (using Cricket service). I dropped my phone, it broke, I bought a new LG G3 to replace it. However the new one was an unlocked AT&T phone.
I downloaded Settings Database Editor from Google Play. Changed one setting, tether_entitlement_check_state (from "5" to "0"). Everything worked after that! I tested my network, my phone, my texting. All good. And hotspot works great. Thanks, @fire7729!