Mobile Hotspot Does Not Work - Unlocked AT&T S4

I have an unlocked AT&T S4 and it is giving me the same issues. I do not want to root my device. Is there a way around this issue so I can have my tethering back?
 
5) Get ES File Explorer from the Play Store. Tap the hard key for menu, scroll down and tap on Net Manager. Tap on Settings at the bottom, select 'Use the system AP setting', enter an SSID (recommended to be short with no spaces, like 'MyName_GS4_Active'), and a password. Tap on OK. Tap on the back button. Tap on 'Create a hotspot network'. It will say 'Establishing Network...turning on', followed by 'Now you are using AP, SSID is...', AP password:, and an 'Exit' button. It may say 'Unfortunately, Settings has stopped' after this, but IGNORE it. Your hotspot is still active - look at the top left of the phone, you will see a wifi symbol in a blue icon, this is your indication that your hotspot is working. WORKS PERFECT!

This is not working for me with an unlocked AT&T S5 on T-Mobile. I've noticed that on a T-Mobile S5 the APN Protocol is IPv6 and on AT&T S5 it is IPv4 and cannot be changed. Any ideas on how to modify that field with SQLLite?
 
This will work, it has worked on my note 3 AT&T unlocked device that I switched to T Mobile. I had trouble with Mobile hotspot, it kept reading "Invalid Sim" and found out how to disable this, but it has to be rooted first! (preferably towelroot Android 4.4.2).

1. Download Titanium Backup from Google Play store (allow apps from unknown sources on device)
2. Since your device is assumed to be rooted at this point, search "tether" in the Titanium Backup app.
3. You should see "TetheringAutomation" and "TetheringProvision". These are what is messing up your tethering experience; Uninstall these apps, but back up for safety before you uninstall.
4. Download "Hotspot Toggle widget" from Google Play store, put the widget on your home screen.
5. Press to activate the widget, IMPORTANT: you will have to press the widget 3 times to activate mobile tethering for whatever reason, at least that how it was for me.
 
This will work, it has worked on my note 3 AT&T unlocked device that I switched to T Mobile. I had trouble with Mobile hotspot, it kept reading "Invalid Sim" and found out how to disable this, but it has to be rooted first! (preferably towelroot Android 4.4.2).

1. Download Titanium Backup from Google Play store (allow apps from unknown sources on device)
2. Since your device is assumed to be rooted at this point, search "tether" in the Titanium Backup app.
3. You should see "TetheringAutomation" and "TetheringProvision". These are what is messing up your tethering experience; Uninstall these apps, but back up for safety before you uninstall.
4. Download "Hotspot Toggle widget" from Google Play store, put the widget on your home screen.
5. Press to activate the widget, IMPORTANT: you will have to press the widget 3 times to activate mobile tethering for whatever reason, at least that how it was for me.

Thanks so much. This worked for me.
 
This will work, it has worked on my note 3 AT&T unlocked device that I switched to T Mobile. I had trouble with Mobile hotspot, it kept reading "Invalid Sim" and found out how to disable this, but it has to be rooted first! (preferably towelroot Android 4.4.2).

1. Download Titanium Backup from Google Play store (allow apps from unknown sources on device)
2. Since your device is assumed to be rooted at this point, search "tether" in the Titanium Backup app.
3. You should see "TetheringAutomation" and "TetheringProvision". These are what is messing up your tethering experience; Uninstall these apps, but back up for safety before you uninstall.
4. Download "Hotspot Toggle widget" from Google Play store, put the widget on your home screen.
5. Press to activate the widget, IMPORTANT: you will have to press the widget 3 times to activate mobile tethering for whatever reason, at least that how it was for me.

Thank you very much. all works
 
Last edited:
This will work, it has worked on my note 3 AT&T unlocked device that I switched to T Mobile. I had trouble with Mobile hotspot, it kept reading "Invalid Sim" and found out how to disable this, but it has to be rooted first! (preferably towelroot Android 4.4.2).

1. Download Titanium Backup from Google Play store (allow apps from unknown sources on device)
2. Since your device is assumed to be rooted at this point, search "tether" in the Titanium Backup app.
3. You should see "TetheringAutomation" and "TetheringProvision". These are what is messing up your tethering experience; Uninstall these apps, but back up for safety before you uninstall.
4. Download "Hotspot Toggle widget" from Google Play store, put the widget on your home screen.
5. Press to activate the widget, IMPORTANT: you will have to press the widget 3 times to activate mobile tethering for whatever reason, at least that how it was for me.

Thank you very much. all works

Worked very well on my note 3 att with tmobile sim
 
hey guy my ss note3 too wifi hotspot is not working liked you. text here is mobile data is not available or invalid sim yeah could you help my please!!.
i need help ss note3 america model yup
 
5) Get ES File Explorer from the Play Store. Tap the hard key for menu, scroll down and tap on Net Manager. Tap on Settings at the bottom, select 'Use the system AP setting', enter an SSID (recommended to be short with no spaces, like 'MyName_GS4_Active'), and a password. Tap on OK. Tap on the back button. Tap on 'Create a hotspot network'. It will say 'Establishing Network...turning on', followed by 'Now you are using AP, SSID is...', AP password:, and an 'Exit' button. It may say 'Unfortunately, Settings has stopped' after this, but IGNORE it. Your hotspot is still active - look at the top left of the phone, you will see a wifi symbol in a blue icon, this is your indication that your hotspot is working. WORKS PERFECT!

Still doest work for me. I keep getting the "mobile data is not available or sim invalid" message. Is there any other advise? I have the GS3 btw.
 
OK, new here and since I don't have any post yet, I can post a link that worked getting my unlocked S4 (Verizon) now on AT&T hotspot to work. I Googled "unlocked verizon s4 on at&t hotspot does not work" and tired the first link and it worked, I now can use my unlocked S4 as a hotspot!!!

highonandroid.com is the website and "How to Get Free Wifi Tether on Rooted Android! [AT&T, T-Mobile, Sprint, Verizon]" is what the post is called.

Hope this helps others!
 
Would not work for me, Titanium Backup that is in Play Store now requires ROOT in order to do anything. I'd rather not ROOT my phone at this time.
 
Hello,

I have an unlocked AT&T S4 and I can not get the hotspot to work. It just says, invalid sim. What is the work around for this issue?

Thanks

dear.my galaxy S5 verizon hotspot velidation error.this device is factory unlock how can solve this problem
 
Last edited by a moderator:
*Originally Posted by Donovonh*




This will work, it has worked on my note 3 AT&T unlocked device that I switched to T Mobile. I had trouble with Mobile hotspot, it kept reading "Invalid Sim" and found out how to disable this, but it has to be rooted first! (preferably towelroot Android 4.4.2).




1. Download Titanium Backup from Google Play store (allow apps from unknown sources on device)
2. Since your device is assumed to be rooted at this point, search "tether" in the Titanium Backup app.
3. You should see "TetheringAutomation" and "TetheringProvision". These are what is messing up your tethering experience; Uninstall these apps, but back up for safety before you uninstall.*
4. Download "Hotspot Toggle widget" from Google Play store, put the widget on your home screen.
5. Press to activate the widget, IMPORTANT: you will have to press the widget 3 times to activate mobile tethering for whatever reason, at least that how it was for me


The above worked for my s4 i337 4.4.2 .
Thanks alot.
 
5) Get ES File Explorer from the Play Store. Tap the hard key for menu, scroll down and tap on Net Manager. Tap on Settings at the bottom, select 'Use the system AP setting', enter an SSID (recommended to be short with no spaces, like 'MyName_GS4_Active'), and a password. Tap on OK. Tap on the back button. Tap on 'Create a hotspot network'. It will say 'Establishing Network...turning on', followed by 'Now you are using AP, SSID is...', AP password:, and an 'Exit' button. It may say 'Unfortunately, Settings has stopped' after this, but IGNORE it. Your hotspot is still active - look at the top left of the phone, you will see a wifi symbol in a blue icon, this is your indication that your hotspot is working. WORKS PERFECT!

thanx alot it work
 
Donovan, great job! I have been trying to fix this for a long time and your solution works fine. I couldn't find the TetheringAutomation app but just getting rid of the TetheringProvision app was sufficient to resolve the problem. A point to emphasize is that the use of Hotspot Toggle Widget is mandatory as this change disables the native function in Settings. Thanks again.
Samsung Galaxy S4 I337 4.2.2 I337UCUAMF3
 
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THIS WORKS FOR ME TOO!!! THANKS SO MUCH!!!!! :p

Originally Posted by Donovonh*




This will work, it has worked on my note 3 AT&T unlocked device that I switched to T Mobile. I had trouble with Mobile hotspot, it kept reading "Invalid Sim" and found out how to disable this, but it has to be rooted first! (preferably towelroot Android 4.4.2).




1. Download Titanium Backup from Google Play store (allow apps from unknown sources on device)
2. Since your device is assumed to be rooted at this point, search "tether" in the Titanium Backup app.
3. You should see "TetheringAutomation" and "TetheringProvision". These are what is messing up your tethering experience; Uninstall these apps, but back up for safety before you uninstall.*
4. Download "Hotspot Toggle widget" from Google Play store, put the widget on your home screen.
5. Press to activate the widget, IMPORTANT: you will have to press the widget 3 times to activate mobile tethering for whatever reason, at least that how it was for me
 

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