[Android Q&A, Help & Troubleshooting] Disquestrian:
Hello! :o

I'm a 70-year old grandmother who has never posted here before so please be patient. I am posting because a couple of old posts I read here helped me solve this frustrating and aggravating problem. I figured maybe my additional info might help someone else who may stumble onto this site trying to solve this Tmobile wireless hotspot problem on their own unlocked ATT phones.

Since I'm new they won't let me post actual links so search around online if you need to You'll find them.

TL;DR - You're right. All I can suggest is that you Just read through things or skim until you get to the part/s that help you. :o

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:: THE PROBLEM ::

==================

I could not FOR THE LIFE OF ME get my Tmobile hotspot to work on my unlocked Att phone (Samsung Mega 6.3 SGH - i527 4.4.2). I WAS able to successfully tether using FoxFi/PdaNet but NOT connect as a wireless mobile hotspot. Whenever I would try to connect as a hotspot the following error appeared: "Mobile Data is not available or Invalid SIM"

[Here is more detailed info on FoxFi/Pdanet for those, like me, who know nothing.]: FoxFi/PdaNet allows mobile hotspot, tethering (using a USB cable), and bluetooth. FoxFi (dot) com . There is a charge ($10?) to get the unlock key for full features. It was worth every penny because running my laptop through my phone by tether - and NOW wifi hotspot - saves me about $50/month in broadband internet charges!! Tra-la!! (Fixed income, you know.):o

*Note, there are two parts FoxFi/Pdanet. One application goes on your phone, the other goes on your laptop/desktop so they can communicate while tethering. There is a new application just for tablets in the App Store. I don’t know if there is one for iphone.

Download links:

For Android (plus Mac or Windows) download here pdanet (dot) co

For iPhone (plus Windows) download here: junefabrics (dot) com

There is a new FoxFi/PdaNet application just for tablets in the App Store. I don’t know if there is one for iphone \ tablets.​

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* * *SOLUTION THAT SOLVED THE PROBLEM FOR ME * * * ( after 4 months of trying everything!):

==============================================

STEP 1: I ROOTED MY PHONE

Actually, I did this awhile ago and I don't remember how I did it but I'm pretty sure it involved the "Kingroot" application. Google around for rooting instruction for your particular phone

STEP 2: QUESTIONABLE STEP but who knows

( I don't really think you need to do this but I did and I figure I'll give you all the info that was involved. I uninstalled this AFTER I fixed this issue and there's been no problem but you never know if somehow it was necessary.

Thinking it, alone might do the trick, I installed __ EntitlementByPass-v1.2.apk ___"for the Motorola Moto X, by KrYpToNiTe"

Download Page link here:

androidfilehost (dot) com (forward slash) ?w=profile&uid=23329332407576114

Download link here:

androidfilehost (dot) com (forward slash) ?fid=23501681358557764

(Actually, I got so crazy that I installed this on top of itself several times and clicked to bypass each time. God knows what doing those installs like that did. Maybe nothing. Maybe it almost bricked (ruined) my phone. What I do know is that when I took Step 2 (below) the bypass was OFF. Again, later I uninstalled this and had no problems without being on the phone.)

STEP 3: I watched and EXACTLY followed the instructions on the following YouTube video (Detailed info below was in the description. Included it here in case the video ever disappears. My added comments are in brackets.

"HOW TO GET FREE NATIVE WIFI HOTSPOT ON THE SAMSUNG GALAXY S4 AT&T"

youtube (dot) com (forward slash) watch?v=SHKkEKjUnqM

Published on Jul 12, 2013

This is a tutorial video on how to get free hotspot on the Samsung Galaxy S4 AT&T. MUST BE ROOTED IN ORDER TO GET FREE HOTSPOT. This only works on the SGH - i337 and AT&T. Enjoy your free Hotspot!

[Clearly, it works on more than just the SGH - i337]

Instructions

1. ROOT Your Galaxy S4 - youtu (dot) be (forward slash) KBZ6ydFHLX4

2. DOWNLOAD free "TetheringProvision.apk" (application) [directly to your phone from the Play Store]

3. DOWNLOAD free "Root Browse" (application) [directly to your phone from the Play Store]

4. OPEN the "Root Browser" application and navigate to /system/app [Go inside the "system" folder, find and open the "app" folder that will be in there.]

5.

a. LOCATE these two files in that "app" folder:

TetheringProvision.apk

and

TetheringProvision.odex

b. RENAME each of the two files [by pressing and holding the file itself, then selecting edit or change name, I don’t know which.]

c. CHANGE the name "TetheringProvision.apk" to "TetheringProvision.bak"

d. CHANGE the name "TetheringProvision.odex" to "TetheringProvision.bak1"

(*Make sure you grant Superuser Request!) [This is relevant only after you root your phone, in which case it will make sense if you have installed the SuperUser app on your phone.]​

6. USE the "Root Browser" app to find your downloads folder: [Go inside the "sdcard" folder, find and open the "Download" folder]

(/sdcard/Download). This will be where you downloaded the TetheringProvision.apk.]

7. COPY the “TetheringProvision.apk”:

[This is like copying and pasting text but here we're copying and pasting an entire application. How it works I don't know but it does.

a. PRESS down on it and select “copy”.

b. GO BACK to the "system" folder, find and open the "app" folder

c. Paste it in by clicking the large button near the bottom of your screen that says “Paste”. If you don’t see that button, start this step over.]​

8. Reboot your Galaxy S4 [or whatever phone you have] and turn on native Mobile Hotspot via Settings. ATT will still give you a warning message, but mobile hotspot/tethering will now work!

* * * [Special Note #1] I turned it on using FoxFi because I wanted to try hide my usage. Did it work? I don't know. I have unlimited Data with Tmobile and I'm way over the 5 GB hotspot allowance for unlimited users. If it becomes a problem I will download the "Wifi Tether" app and give that a try. So far so good. Actually, I think turning the Wifi on through FoxFi automatically turns on the native ATT hotspot toggle in the settings.

* * * [Special Note #2] When I tried to turn it on at first I ran into trouble. I got "setting have stopped" messages for quite awhile but that was a NEW error message so I knew SOMETHING had changed. I REFUSED to give up. I just kept goofing around turning it on and waiting and getting the error message and restarting my phone and turing it on and on and on and getting the message and restarting my phone, etc. THEN, all of a SUDDEN, that sucker worked!!! I knew it because two little wireless icons (one Foxfi, blue; and PdAnet, black) rolled up on my top notifications bar. They rolled up, they rolled down, they rolled up, again, and THEN THEY STAYED THERE!! I could NOT believe my eyes!! I let it run for awhile too afraid to turn it off in case it would never come back. But it did. It went on and off just fine so, eventually, I uninstalled the EntitlementBypass app without if affecting anything. This being said, SOMETIMES, I still get the "setting have stopped" error message, in which case I just restart my phone, toggle it on and do that until it comes back on to stay.

* * * [Special Note #3] If you get this to work, I don't know if it still will if you update your system, security, anything, so I NEVER WILL. I'd rather have a working hotspot than ANY of that.

:o:o:o:o:o:o:o:o:o:o:o:o:o:o

[more from the Youtube description]

How to Get Free Wifi Hotspot on the GS4 AT&T

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Category

Science & Technology

License

Standard YouTube License