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wifi tether

Hi guys,
I am loving the Nexus 5. I've ordered it, and should be here in 2 days. Only issue is, I need the program android-wifi-tether https://code.google.com/p/android-wifi-tether/ to be working on this phone.
You see, I have a data plan from my carrier which DOES NOT ALLOW you to tether = (. However, the program wifi tether works great to get around this. Previously I used to use an App called Fox-Fi which did something similar.
Currently I'm running a TW based Samsung S3, because WiFi Tether will only work on TW-based roms, not AOSP-based roms.
Do you think there is any chance to get WiFi Tether, (or similar) App that will work on the Google Nexus 5?
Thoughts?

It looks like the biggest requirement is Netfilter, which is essentially IP tables. Try installing IP tables, and see if the program will run. Otherwise, you can always use another tethering app like easytether, or another program (I know that there are loads out there). If you are rooted, it should not be much of a hassle to install.

Es Filexplorer will do it for you once rooted and a great file management app also

Thanks guys. I'll give it a shot once device is in my hands. Thanks.

Another method for this I use that sometimes works is to tether using the default app and just use a User Agent switch in google chrome for HTML traffic. My video games as well as spotify ETC work like normal I only need the UA switcher for traffic within the browser.

Wait, am I missing something here? OP, tethering is a standard feature in Nexus phones, esp now that Verizon is out of the equation.
Why can't you just use the built-in tethering? If it's an issue of your provider being able to track that, then I don't think any of the 3rd party tools are going to help. Typically, just a user-agent switcher can take care of the problem on the device that you're tethered to.

I'm dealing with this issue right now. I had a note 2 running macks rom on my sprint note 2 that let you hotspot free. The N5 tether/hotspot does not work. We need a work around..

Engineer4life said:
I'm dealing with this issue right now. I had a note 2 running macks rom on my sprint note 2 that let you hotspot free. The N5 tether/hotspot does not work. We need a work around..
Click to expand...
Click to collapse
My carrier has 2 data plans. 6gb for $30 gives you LTE and tether/hotspot. Or Unlimited LTE for $45 -but tether/hotspot is disabled/not allowed.
I'm on the $45 plan and built-in tether does not work. But the app "wifi-tether" gets around this and works Great!
The issue isn't user-agent. With built-in tether I can't even get a data signal. It will create the a dud Wi-Fi hotspot.
Let's hope IPTables works! I'm sure Bluetooth tether and USB tether may still work, but is much more annoying.

prettyha8 said:
My carrier has 2 data plans. 6gb for $30 gives you LTE and tether/hotspot. Or Unlimited LTE for $45 -but tether/hotspot is disabled/not allowed.
I'm on the $45 plan and built-in tether does not work. But the app "wifi-tether" gets around this and works Great!
The issue isn't user-agent. With built-in tether I can't even get a data signal. It will create the a dud Wi-Fi hotspot.
Let's hope IPTables works! I'm sure Bluetooth tether and USB tether may still work, but is much more annoying.
Click to expand...
Click to collapse
which version of the wifi tether app did you use that works? It seems some versions are picky about some phones I just want to get everything I need for when my Nexus 5 arrives

orthonovum said:
which version of the wifi tether app did you use that works? It seems some versions are picky about some phones I just want to get everything I need for when my Nexus 5 arrives
Click to expand...
Click to collapse
For my TW-based Samsung Galaxy S3, I used the file "wifi_tether_v3_4-experimental1.apk", then I changed the SSID and changed the WPA2-PSK phasephrase.
*** I think the trick was, if you did NOT change the default SSID or added a WPA2 password the App did not work. After you set a WPA2 password, you can then turn off encryption or change the SSID back to default.
But I don't think know if this will work for the Nexus 5. **Fingers-crossed!

bump

There is another thread with more discussion on this matter here: http://forum.xda-developers.com/showthread.php?t=2512674

prettyha8 said:
The issue isn't user-agent. With built-in tether I can't even get a data signal. It will create the a dud Wi-Fi hotspot.
Click to expand...
Click to collapse
Is that the case on a Nexus device or something else? In theory my plan doesn't allow tethering, but I've never had an issue with the built-in hotspot. I'm just trying to figure out how your carrier would even know you were using a hotspot versus having data requests come from the phone itself. The traffic should look the same, for the most part.

bobalias said:
Is that the case on a Nexus device or something else? In theory my plan doesn't allow tethering, but I've never had an issue with the built-in hotspot. I'm just trying to figure out how your carrier would even know you were using a hotspot versus having data requests come from the phone itself. The traffic should look the same, for the most part.
Click to expand...
Click to collapse
I believe when you tether, your phone creates a secondary data connection pipe for tethering data. Apps like WiFi-Tether spoof this, and can even create an internal proxy server, such that all tethered data will look like on-device mobile browsing data.
My carrier let's me only create one data connection, thus tether is not allowed. However if I insert my SIM into a "MiFi device", then I can "share" the data connection, as only 1 data connection is being established.
I MIGHT BE WRONG, but this is what it looks like is happening in my findings. Hence the use of IPTABLES to re-route.
I'm not sure why AOSP-based custom Roms could never get WiFi tether working, but TouchWiz (TW) based roms could. I assume something in the kernel. However, I need this working badly.

Interesting, I'd never really given the process a detailed consideration but that sounds like a plausible explanation for both how they detect it, how they block it, and how software modifications let you get around it.

I am currently using wifi tether on evo lte on sprint, fine. Thinking of getting nexus 5. Will this app work on it? that link to the other thread was about tmobile and data plans and stock hotspot app. I am interested in wifi tether app with root. What are the settings to make this work on N5?
Thanks

Dungeon47 said:
There is another thread with more discussion on this matter here: http://forum.xda-developers.com/showthread.php?t=2512674
Click to expand...
Click to collapse
Dig through this thread. Somewhere there's a post explaining what to do to stop your carrier from checking if you are tethering. It requires editing a database and changing the proxy to ipv4 instead of ipv6.
Sent from my Nexus 7 using Tapatalk

[HOW-TO] Enable Wifi and USB Tethering on AT&T Samsung Galaxy S4 with Android 4.3 MK2

[HOW-TO] Enable Wifi and USB Tethering on AT&T Samsung Galaxy S4 with Android 4.3 MK2
After some research on various forums including this one, I got both Wifi and USB Tethering working on my AT&T Samsung Galaxy S4 with Android 4.3 (build MK2). Figure others may look for similar solutions so I put together the steps I used in this post.
1. Background
I have been tethering with SVTP (paid version) since acquiring the Galaxy S4 in June 2013, with my unlimited data plan. Then it stopped working after a week when AT&T pushed out the software update. Furious, I googled around and found the "Click the home button when the checking popup appears" trick, and had been happily tethering, until AT&T push another update (MK2) two weeks ago. It defeated that trick and none of the tethering apps work. Oh man, not again!
I googled again and found FoxFi. The wifi tethering didn't work (it only work on Verizon as reported(), but the USB and Bluetooth tethering do work. I am relived as I had a temporal solution. However, both the USB and Bluetooth tethering drop and resume the internet connection every minute. Very annoying when downloading a bigger file, or playing online games that require constant connection. Finally can't stand it anymore. I keep googling around and found there's no other solution except rooting the device. And I decide to take the risk and give it a shot.
2. Result
After following the steps, I was able to get all tethering apps works. Specifically all these works;
SVTP
ES File Manager
FoxFi
And, the native Tethering from the phone also work. This give me the hint that probably most, if not all, tethering apps should work.
Furthermore,the built-in USB tethering also work! Unlike the one from FoxFi, this one work continuously without dropping/resuming the connection every minute. This can be handy as you can charge your phone while tethering. Pretty cool, uh?
Last but not least, I disable the AT&T Software update, so I don't have to do this again
3. Steps
Here's the steps I used. I piece them together from various sources. Many thanks to the folks who put them together, and to the folks who tried before me and post the positive result. Basically you need do to a few things:
a. Root the device
b. Modify the tethering file
c. Turn on tethering and verify it works
d. Disable the AT&T Software update (Optional)
Please see the next post for details.

Steps
a. Root your device
Scary, isn't it? I was in the same boat and really hesitated to do it. However with no other option available it may worth a try. It does work well and give you good control of the phone. Worthy in my opinion, especially when it allows you to do what you want to do.
a1. If you are new to rooting your phone like me, some background reading may help:
http://www.kingoapp.com/help/android-rooting.htm
https://sites.google.com/site/tomsgt123/all-videos/samsung-galaxy-s4
a2. Watch this video as a preparation and confidence building:
http://www.youtube.com/watch?v=uii_mYm8IGE&feature=youtu.be
a3. Root your device using the steps here. It echoes the steps in the video. Even though it is made for the Verizon model, it works on AT&T too:
http://forum.xda-developers.com/showthread.php?t=2565758
b. Modify the tethering file:
b1. Follow the steps in the post. It works:
http://forum.xda-developers.com/showthread.php?t=2535141
b2. Pay attention to the mount /system as RW mode step. It is missing in the original post:
"I was not able to rename files or copy until I change 'Mount R/W'.
To do this, you click on globe/phone on top left corner.
Scroll down to "Root Explorer" and hold for a second or two.
When you let go, a pop-up screen appears. Click on Mount R/W,
and change "/system" from OR to RW."
http://forum.xda-developers.com/showpost.php?p=48950107&postcount=87
c. Verify tethering works
c1. Use your favorite tethering app, it should work. Just disregard the AT&T Popup (click OK).
And if you don't use any tethering app before, rest at ease. Your phone's native Wifi and USB tethering also work. That maybe the best part as you don't need to purchase any "unlocked" version of those apps. Just go to "Settings->More networks->Tethering and portable hotspot". Turn on Mobile Hotspot and you can use Wifi tethering as usual.
c2. Or while at the same screen, connect your phone to the laptop with a USB cable and enable "USB tethering". Your laptop will automatically install a USB driver and you will be connected to the internet via USB. This option works especially well when all you need is connect one laptop to the internet. It not only saves the battery of your phone by not using Wifi, but also charge your battery while tethering!
c3. Stil not enough? How about make your laptop a wifi hotspot? Follow the steps here:
http://lifehacker.com/5369381/turn-your-windows-7-pc-into-a-wireless-hotspot
This way, you charge your phone while tethering using USB, your laptop is on the web, and others can connect to the internet via the Wifi hotspot on your laptop. It is a win-win-win situation
d. Finally, if you don't want to be annoyed in the future and redo all these again (which may or may not work anymore as they may close the door), turn of AT&T Software update. Follow the steps here:
Stopping AT&T Auto Software Update
Download and install "App Quarantine ROOT/FREEZE" from Play Store.
Open the app and go to settings by tapping on the wrench icon at the top right of the screen.
Uncheck the "Hide system services" option.
Go back to the app and select "AT&T Software update".
Tap on the lock icon on the top right of the screen.
It may ask you to enable the USB debugging.
Feel safe from AT&T's new attack
http://forum.xda-developers.com/showthread.php?t=2387577
Again, many thanks to those who put the information together, and to those who tried it and proved it worked. You guys are great! Happy new year and happy tethering!

Good job!
I'm sure a lot of people will benefit from this.

I can verify that this method works perfectly for my ATT S4 Active ML2 - thank you!!!

Just found this thread today, I've been planning on rooting my phone for some time now and tethering is one of the biggest reasons why.
I just wanted to confirm that this fix has allowed you to tether using the native tethering function in android with an unlimited (grandfathered) AT&T data plan and you haven't had any problems with AT&T harassing you about it. I'm in the same boat and don't want to lose my unlimited data as I've heard as happened to some people.
Also thanks for the guide!

Does anyone know if this will work on non samsung AT&T phones. Like the HTC M8?

ProdigalHacker said:
Just found this thread today, I've been planning on rooting my phone for some time now and tethering is one of the biggest reasons why.
I just wanted to confirm that this fix has allowed you to tether using the native tethering function in android with an unlimited (grandfathered) AT&T data plan and you haven't had any problems with AT&T harassing you about it. I'm in the same boat and don't want to lose my unlimited data as I've heard as happened to some people.
Also thanks for the guide!
Click to expand...
Click to collapse
Yes, it works fine with the AT&T unlimited data plan.

Sprint Note 5 without Hotspot option

I recently purchased a Note 5 from Sprint on eBay. The phone was taken directly to the carrier I now have and I did not get the chance to check it before it was taken to Cleartalk. I got the phone yesterday and the phone was working perfectly as well as the 4G but when I decided to turn on the Hotspot there was no option for Hotspot!!! Also, I realized that the phone didn't have any applications from Sprint that Sprint phones have and that you cannot uninstall. I took it back to my carrier and they said that they cannot remove the hotspot option, that the phone doesn't have that option. So they pretty much turned me down... I also tried downloading apps that would allow me to share my internet like hotspot and there was an error. I ended up resetting the phone and now I don't have Internet which that will be fixed Monday when I take it back to cleartalk, but any idea why my phone is sprint but doesn't have any sprint features??
TYIA

I have the same problem but because I cracked my phone they won't exchange it

I wonder if the phone was rooted and the previous owner deleted a lot of the Sprint apps and such. You might be able to run through the steps of rerooting the phone and install a stock rom that would have all of the necessary apps.

OR use ODIN to flash the latest sprint stock firmware. http://www.sammobile.com/firmwares/download/106117/N920PVPU2BPH9_N920PSPT2BPH9_SPR/
edit: this download is probably quicker. PH9 is the latest. https://www.mediafire.com/folder/byye3kocz6nn4/Stock Roms Note 5

just download FoxFi app and key from blackmart alpha...works the same.

I've been searching the net like crazy to try and fix this issue, I tried a bunch of apps and also tweaks within db files etc, the only thing that worked for me was to run Easy Tether Pro and plug it into my PC with a usb cable. Doesn't exactly fix it for every situation but it got me running again. One page I found suggested that it was an activation issue that causes the hotspot option to disappear. The guy that worked this out had his phone reactivated with the carrier and it started working again. I think I probably have the same phone as the OP, it's unlocked but because it was originally activated with Sprint it isn't a fully functioning phone. I'm also having a couple of other issues that I'll reserve for a separate post.

thebluewiggle said:
I've been searching the net like crazy to try and fix this issue, I tried a bunch of apps and also tweaks within db files etc, the only thing that worked for me was to run Easy Tether Pro and plug it into my PC with a usb cable. Doesn't exactly fix it for every situation but it got me running again. One page I found suggested that it was an activation issue that causes the hotspot option to disappear. The guy that worked this out had his phone reactivated with the carrier and it started working again. I think I probably have the same phone as the OP, it's unlocked but because it was originally activated with Sprint it isn't a fully functioning phone. I'm also having a couple of other issues that I'll reserve for a separate post.
Click to expand...
Click to collapse
What are u trying to get tethering w/o your cable. If you have Sprint it's apn is greyed out. Use sql editor and edit the apn. Then ur good to go - edit telephony.db, i believe.
If it doesn't work PM, I will shoot you my number.

TorqTube01 said:
What are u trying to get tethering w/o your cable. If you have Sprint it's apn is greyed out. Use sql editor and edit the apn. Then ur good to go - edit telephony.db, i believe.
If it doesn't work PM, I will shoot you my number.
Click to expand...
Click to collapse
Nah tried that. It's not related to the APN, it's related to the hotspot and tethering function being missing altogether from the phone. Any tweaking in the telephony.db file has no effect for me.
Anyway I bit the bullet and am returning the phone for a refund. Just can't be bothered wasting any more time on it.

thebluewiggle said:
Nah tried that. It's not related to the APN, it's related to the hotspot and tethering function being missing altogether from the phone. Any tweaking in the telephony.db file has no effect for me.
Anyway I bit the bullet and am returning the phone for a refund. Just can't be bothered wasting any more time on it.
Click to expand...
Click to collapse
If you don't mind, what is the issue. I assumed that you wanted some kind of tethering. You were saying about using the cable to tether.
Sent from my Portable

TorqTube01 said:
If you don't mind, what is the issue. I assumed that you wanted some kind of tethering. You were saying about using the cable to tether.
Sent from my Portable
Click to expand...
Click to collapse
Exactly the same issue as the OP. The option for Hotspot is missing from the "connections" section in settings. It's possible to get to it, some 3rd party apps need it switched on and will take me to the "hotspot and tethering" window to switch it on, but it's greyed out and has no options within it. As I said, the only way I could get it to provide my computer with internet was to use Easy Tether Pro, with a USB cable. Far from ideal. I tried rooting, stuffing around with the db file, factory reset, downgrading to Android 5, nothing worked. So back goes the phone.

Hotspot Mod (Non Root) for S9 + (snapdragon) (Data don't count toward Hotspot data)

This method combined with a second part FOR SURE does not Count toward your hotspot data at all. thanks to @BlueFox721
it will stick during reboots but a PRL update will reset it and you'll have to do it again. and possibly a firmware update will too)
(like the other post)
Instructions
1. Download Shortcut master lite here https://play.google.com/store/apps/details?id=org.vndnguyen.shortcutmaster.lite
2. Next open shortcut master and in the right hand corner
3. click the drop down and select "App manager"
a list of all apps (system included) will appear.
4. Scroll down and Click on Com.LTEFUNTIONALITY.TEST
5. hit the launch button that appears.
6. Go into the APN2 LTE internet settings (where you should be now) and were it says APN type, Change it from: Default,mms to: Default,mms,dun
7. Next in the top right Corner hit the 3 dots and click SAVE.
it may take one or 2 tries before it Opens the APN to be edited. At first it may stay greyed out. just try it again in a few minutes. or an hour.
if you have a Plan with no hotspot, your Done and good to go. (remember if the PRL updates you'll have to redo it)
TO USE
I shut off the data turn on the hotspot wait 5 secs then turn data back on
the above MOD will work perfectly and will not Count any hotspot data.
Feel free to share your Experiments
Remember if you PRL updates it will reset the MOD
In the mean time I will continue working on the ADB method that sticks through Everything except factory reset and Post it here when I know its working .

Subscribed!

Am I understanding your post correctly ? That the mod you are working on will allow you to use your phone as a hotspot and you could download a 4GB file and it would not count against your total data usage ? That sounds too good to be true but I am really intrigued - looking forward to hearing more....

You're a lifesaver, man!

Subbed on this!

Any other non-root hotspot (also a Sprint user)? I don't care if it counts towards my data usage, I just need to be able to do some basic web browsing/email/etc a couple weekends a month from my laptop and not my S9+. Following this thread!!!

Thanks for working on this! Will keep an eye out for the update.

Robalboa said:
UPDATE 2. the hotspot is definitely working and does not count data toward your hotspot usage. But DOES count it toward total data, just none on the hotspot data (yesss)
Check back soon just wanting to verify a few more things. Sorry for keeping you waiting.
Click to expand...
Click to collapse
Bumping for the update... Hope it works! :good:

BlitzK said:
Any other non-root hotspot (also a Sprint user)? I don't care if it counts towards my data usage, I just need to be able to do some basic web browsing/email/etc a couple weekends a month from my laptop and not my S9+. Following this thread!!!
Click to expand...
Click to collapse
I have sprint, small data plan (3gig). It includes tethering. Just tested it again, with my s9. Works fine just with the toggle and nothing changed.
Home is 100mb, i get my fill of gigs for sure, lol

JS_racer said:
I have sprint, small data plan (3gig). It includes tethering. Just tested it again, with my s9. Works fine just with the toggle and nothing changed.
Home is 100mb, i get my fill of gigs for sure, lol
Click to expand...
Click to collapse
I cannot add hotspot service to my plan with Sprint but have unlimited data....

This one worked for me. https://forum.xda-developers.com/ga...de-enable-native-mobile-hotspot-root-t3765675

BlitzK said:
I cannot add hotspot service to my plan with Sprint but have unlimited data....
Click to expand...
Click to collapse
good your is easy to fix. Tonight ill post a temporary mod , until we get the permanent one going.

BlitzK said:
This one worked for me. https://forum.xda-developers.com/ga...de-enable-native-mobile-hotspot-root-t3765675
Click to expand...
Click to collapse
This one wont count data toward your hotspot plan

Robalboa said:
This one wont count data toward your hotspot plan
Click to expand...
Click to collapse
Neither does the linked one. I don't have a hotspot plan, and it works just fine.

meyerweb said:
Neither does the linked one. I don't have a hotspot plan, and it works just fine.
Click to expand...
Click to collapse
For the people who have a hotspot that comes with their plan (ALL UNLIMITED FREEDOM PLANS), this wont count the data toward the 10 gig limit. Once it hits 10 gigs it becomes unusable
Except for a web page maybe.

Any chance this works on a pixel or pixel 2?

I can't find such menu on my device

This also works on the Galaxy note 8, however, I could not use android messages to send mms or videos until I changed the proxy back to what it was. I wish there was a way that I could create a new setting to change back and forth when I use hotspot without going through the dialer.

Robalboa said:
This method combined with a second part FOR SURE does not Count toward your hotspot data at all. thanks to @BlueFox721
.
.
.
5. hit the launch button that appears.
Click to expand...
Click to collapse
Nothing happens for me after that step. I'm sitting at the same point I was before I hit the launch button. So there is no step 6 for me...
S9+, Verizon

Brokk said:
Nothing happens for me after that step. I'm sitting at the same point I was before I hit the launch button. So there is no step 6 for me...
S9+, Verizon
Click to expand...
Click to collapse
Doesn't appear to work on VZW

No Root Hotspot Mod Oreo 8.0 and Below

Hey guys, I have found a way to get hotspot working in Oreo without rooting or paying for the service. Timing seems to be important for Sprint's software to load and block the functionality of the hotspot. This method does work on Oreo, but it also works on all other versions below it as well. Follow the steps below or watch the video at the bottom and post back here if it works!
1. Download and install Shortcut Master Lite from the play store.
2. Open Shortcut Master Lite and search for com.test.ltefunctionality and make sure there are no spaces before or after the query.
3. Open the result ending with LTEFunctionalityTest and find LTE APN Setting in the list and tap it.
4. Open APN2 EHRPD internet and scroll to APN type. See if you can edit it. If so then great! Add ,dun to the end and to the same for APN2 LTE internet and you're done! If you cannot edit, which is likely on Oreo, then continue with the steps.
5. Some have had success with rebooting the phone and getting into Shortcut Master Lite quickly after the reboot. For others this does not work. You can try it and see for yourself.
6. Open up the dialer and type ##27263# This resets your carrier customization settings and reboots the phone.
7. Upon reboot, follow steps 2 through 4 again and it WILL work. Make sure you save your changes when editing the APN Types.
8. Verify your hotspot is working by toggling it on and connecting a device.
Here is the video: No Root FREE UNLIMITED WiFi Hotspot Sprint Galaxy Note 8
Disclaimer: I do post videos on YouTube with ads and get a tiny amount of revenue, but this is not for profit. I am just sharing this with the community. You are welcome to subscribe, but I will never ask you to on this forum. I may not be the first to figure this modification out and will gladly give credit where it is due if someone has done it before me. I am not responsible if your phone explodes during this process, you void your warranty, or if you modify your files and no longer receive signal or updates. All of these steps are followed at your own risk. I and others here will try to help you if you get stuck, but you assume full responsibility for what you do to your own phone.

I got this to work on my Galaxy S9+ for the last two weeks. As of 5/29/18 it has quit working and If I redo the procedure it immediately catches it and shuts it off.

tenraii said:
I got this to work on my Galaxy S9+ for the last two weeks. As of 5/29/18 it has quit working and If I redo the procedure it immediately catches it and shuts it off.
Click to expand...
Click to collapse
That is odd. It is still working for me. I am running software version CRE1

AT&T Galaxy s7 edge oreo hotspot
How can i get free hotspot on AT&T galaxy s7 edge oreo? Had it before the update but now after the update it doesn't work. Any suggestions?

violento33 said:
How can i get free hotspot on AT&T galaxy s7 edge oreo? Had it before the update but now after the update it doesn't work. Any suggestions?
Click to expand...
Click to collapse
id like to know as well

Is there a way to get this to work on verizon? The old sim card trick no longer works on Oreo.

Does this still works? Also I'm suppose to have unlimited plan, but once I use certain amount of data the speed get drastically reduced, is there a way to avoid or bypass the speed limit on Sprint?
Btw OP love the Insaniquarium profile pic haha

zerocords said:
Does this still works? Also I'm suppose to have unlimited plan, but once I use certain amount of data the speed get drastically reduced, is there a way to avoid or bypass the speed limit on Sprint?
Btw OP love the Insaniquarium profile pic haha
Click to expand...
Click to collapse
I just used this on my note 8 with the CRE1 update and it worked great.
Now does anyone know if it works on the s8?

Hello, I was using an app (shortcut master lite) to modify hotspot to work. But now when I go into shortcut master it's all greyed out. I cannot select anything. Can someone help to enable so I can get hotspot to working again.

mrvoodoodaddy69 said:
I just used this on my note 8 with the CRE1 update and it worked great.
Now does anyone know if it works on the s8?
Click to expand...
Click to collapse
I have an S8+ and basically modified this setting via ADB way back on Android 7 and it has persisted all the way through the upgrade to Oreo. I am currently on CRG3 and it still works. One trick to note is to turn off mobile data, turn on the hotspot, and then turn mobile data back on. Has been working since I got this phone back in May 2017...
Now to see if the ADB method will work on the Note9 in a few days...

gmoney175 said:
Hello, I was using an app (shortcut master lite) to modify hotspot to work. But now when I go into shortcut master it's all greyed out. I cannot select anything. Can someone help to enable so I can get hotspot to working again.
Click to expand...
Click to collapse
Reboot phone
Dial ##brand# accept/yes and phone will reboot
Open shortcutmaster and edit apn's as usual
profit

Hey guys, I have written an app that makes this process pretty easy. Shortcut Master Lite is no longer available on the Play Store.
https://forum.xda-developers.com/galaxy-note-9/themes/app-openit-easy-free-to-unlock-t3849988