Develop Bugs

At&t temoraly RAT removal

I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Umts->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.

could you explain what "RAT restriction" is and what removing it will provide?

kirkgbr said:
could you explain what "RAT restriction" is and what removing it will provide?
Click to expand...
Click to collapse
Here is a thread that talks about RAT restrictions. It appears to have to do with restricting access to certain bands, but I am swimming in waters that are deeper than my skills will allow.
http://forum.xda-developers.com/showthread.php?t=1189241

norbarb said:
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Units->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
Click to expand...
Click to collapse
I gonna do a run for this later today to see if it will actually work for allowing band selection and sticking.

It seemed to work for me, but it's only been a couple of minutes so far after turning off LTE. BTW, the first menu is "UMTS", not "Units".
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Any suggestions on how to make these changes permanent without rooting?

Since there is now a known code to lift restrictions until reboot, I hope some dev will figure out a way on stock based roms (both stock and mods), as well as AOSP based, to make it permanent. I have tried AOKP and CM10 in hopes the LTE and 2G toggles would work but no dice with AT&T SGS3.
Anonymously_Unknown said:
Any suggestions on how to make these changes permanent without rooting?
Click to expand...
Click to collapse
Given the issue at hand, it is most likely a deeply embedded setting that will not be available to standard user base (non rooted), henceforth root access or even on a programming level will be needed to make the necessary changes. How the changes will be made available, if it is done, will depend on what was needed to make it permanent. This raises the question of where is this restriction coded into the AT&T SGS3. Is it firmware, ROM, SIM related, Radio? Seriously doubt it is hardware itself since there are ways to get around the restriction.

larryka said:
It seemed to work for me, but it's only been a couple of minutes so far after turning off LTE. BTW, the first menu is "UMTS", not "Units".
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Yes you are corect. I make correction in OP.

Testing RAT unlock now.
norbarb said:
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Umts->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
Click to expand...
Click to collapse
Testing this method now. So far I am running on 2G. I will give it at least a couple of hours and will update this post accordingly.
Update: I was messing around and decided to save this USSD (the official name of these secret dialer codes) in my contacts. From dialer you can start pressing *#1 and when it appears just press it. This gives quick access should you need to change radios often. I also want to add that instead of going back into *#2263# you can also select the band from *#197328640#. If you want to change it immediately, then once you get the confirmation "Now RAT Free Supporting" press the menu key on the left of the Home button. Select back and repeat again to go back again. Then, instead of choosing Network Lock choose Network Control-->Band Selection. This takes you to the same menu that *#2263# does and you can select accordingly.
@norbarb...perhaps you can update your OP to reflect that you can stay within the original selection instead of *#2263# and just go back twice to access the band selection. It is just one more way of doing things.
I also did the test of rebooting my phone. As mentioned by norbarb, if you have rebooted the RAT restriction is back in place. Regardless of which option you take to the band selection it will show RAT restriction until you follow the OPs steps again to remove restriction. Have not found a way for permanent removal of the restriction yet (I am optimistic and really want this permanent so I will look very hard to find a solution.). Also when I rebooted I had GSM 2G only selected prior and I kept the option upon reboot so only the RAT restriction is reset...not the network band settings.
Update 2: After 4 hours I am still on 2G Edge. I am in a very good LTE location so this is definitely the most promising outlook. I have found that I despite my love for the look of AOSP roms, the inability to turn on 2G at all will keep me with TW for now. Thankfully I do not mind the look of TW and with root, I can kill the Bloatware. I will look at all of the options in the *#197328640# menus and see if there is anything that may can be applied for permanent access. I also wonder if the secret to overriding the lack of options for network choices in *#*#4636#*#* will be here as well as this would more preferable to shut down LTE only.

aybarrap1 said:
I also did the test of rebooting my phone. As mentioned by norbarb, if you have rebooted the RAT restriction is back in place. Regardless of which option you take to the band selection it will show RAT restriction until you follow the OPs steps again to remove restriction. Have not found a way for permanent removal of the restriction yet (I am optimistic and really want this permanent so I will look very hard to find a solution.). Also when I rebooted I had GSM 2G only selected prior and I kept the option upon reboot so only the RAT restriction is reset...not the network band settings.
Click to expand...
Click to collapse
Same here.
Sent from my SAMSUNG-SGH-I747 using xda premium

Isn't the problem with doing this, say if you disable LTE and only select HSPA, it wont go to any 2G networks if you are out of coverage. Because its not on 'automatic', its on HSPA. So if you are out of a service zone of HSPA, then you dont have anything to fall back to.
If only there was a way to disable LTE, and use the other networks 'automatically'.

geoldr said:
Isn't the problem with doing this, say if you disable LTE and only select HSPA, it wont go to any 2G networks if you are out of coverage. Because its not on 'automatic', its on HSPA. So if you are out of a service zone of HSPA, then you dont have anything to fall back to.
If only there was a way to disable LTE, and use the other networks 'automatically'.
Click to expand...
Click to collapse
That is the problem. However, AT&T in their infinite focus on trying to force users to their networks of choice has purposely had the ability to do network selections disabled. Under normal circumstances in android devices the option of network selection is under settings and mobile networks option. This is removed I am sure at AT&T's request. The other way to access this is to use USSD *#*#4636#*#* in dialer and select "Device Information" which will give you an option to choose a network preference. While the USSD works the option to select network preference does not work.
At least with the option to unlock RAT and using USSD *#2263#, it gives some sort of ability to choose a network. For me this is perfect since I want the 2G only due to poor 3G and LTE signals at work. However you are right that it is not convenient if you just want LTE off. For the moment there is no known way to obtain this option on the AT&T SGS3.

aybarrap1 said:
That is the problem. However, AT&T in their infinite focus on trying to force users to their networks of choice has purposely had the ability to do network selections disabled. Under normal circumstances in android devices the option of network selection is under settings and mobile networks option. This is removed I am sure at AT&T's request. The other way to access this is to use USSD *#*#4636#*#* in dialer and select "Device Information" which will give you an option to choose a network preference. While the USSD works the option to select network preference does not work.
At least with the option to unlock RAT and using USSD *#2263#, it gives some sort of ability to choose a network. For me this is perfect since I want the 2G only due to poor 3G and LTE signals at work. However you are right that it is not convenient if you just want LTE off. For the moment there is no known way to obtain this option on the AT&T SGS3.
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Click to collapse
Yep. I also think it's something to do with AT&T network setup. Because on AOSP ROM's we can't toggle LTE either. But the same ROM on a Canadian model phone will work just fine.
Even though the iphone has an LTE toggle. At least I read somewhere that it does.

geoldr said:
Yep. I also think it's something to do with AT&T network setup. Because on AOSP ROM's we can't toggle LTE either. But the same ROM on a Canadian model phone will work just fine.
Even though the iphone has an LTE toggle. At least I read somewhere that it does.
Click to expand...
Click to collapse
It has nothing to do with the network setup...it is the carrier forcing restrictions on their customers. I have had three other android phones (including my wifes) in the last three years. All of them were restricted from choosing the network from stock rom. The moment I uploaded a ROM such as CM or other AOSP Roms I was magically able to do a network select. I even had to Windows phones (6.1 and 6.5) and both of them were stripped but with some registry edits I was able to add the option back to select between 3G/2G and 2g only. It is AT&T's way and they are notorious for it.
On a side note, I would not be surprised if AT&T is the primary corporate network that pushed for this network SIM lock ruling by the Congressional Librarian. Of all the carriers they have the most to lose.

If you want to select multiple bands and still turn lte off..
http://forum.xda-developers.com/showthread.php?p=37334232
Galaxy S III I747

fmllc said:
If you want to select multiple bands and still turn lte off..
http://forum.xda-developers.com/showthread.php?p=37334232
Galaxy S III I747
Click to expand...
Click to collapse
I have been testing this for the last 4 hours and it does seem to work. Went to 2g only area and it switched perfectly to 2G and reverted back to 3g when I left the area. However I am not able to do GSM ONLY (2G only) using this method. You will have to follow the instructions on this thread for that.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Click back button and try setting radio by pressing *#2263#.
norbarb said:
I just play with my S3 I747 and find out how to temporaly remove RAT restriction.
Click phone then punch code : *#197328640# ->Umts->Debag Screen->Phone Control->Network Lock->Rat_Free_Supporting ON
After you click this you see " Now RAT Free Supporting". Click back button and try setting radio by pressing *#2263#.
RTA will lock back after restarting.
Click to expand...
Click to collapse
How to set radio by pressing *#2263#?
And what is RTA will lock back after restarting?

So what is the benefit of the ability to change bands?

OKAstro said:
So what is the benefit of the ability to change bands?
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Click to collapse
It could result in battery savings and reduced dropped calls. For instance, I am often in and out of areas with little to no bandwidths under LTE. At default, my phone would always looking for an LTE signal which means my battery takes a pounding. By having my phone only look for 2G/3G, I do not take as large of a battery hit. Besides that, LTE does consume more power. For the most part I leave my phone with LTE off because the data speed is not crucial for me. At home I have a really fast WiFi network so it is better to be on it anyway while at home.

aybarrap1 said:
It could result in battery savings and reduced dropped calls. For instance, I am often in and out of areas with little to no bandwidths under LTE. At default, my phone would always looking for an LTE signal which means my battery takes a pounding. By having my phone only look for 2G/3G, I do not take as large of a battery hit. Besides that, LTE does consume more power. For the most part I leave my phone with LTE off because the data speed is not crucial for me. At home I have a really fast WiFi network so it is better to be on it anyway while at home.
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Click to collapse
OK Thanks. But under Settings/More Networks/Mobile Networks/Network Mode there are 13 "band" combination choices. Do those choices not provide what you''re looking for (i.e.2G/3G)?
I've never changed mine, so I'm curious

T-Mobile has thrown the VoLTE switch nationwide

I missed that during the Earnings Call yesterday, John Legere announced VoLTE is now available nationwide!
https://twitter.com/JohnLegere/status/494991141251874816
Unfortunately, the G3 does not support it yet. I have seen VoLTE messages in the logs:
I/[SystemUI]VoLteImageView( 1201): onReceive = android.intent.action.CONFIGURATION_CHANGED
D/PhoneApp( 1585): getIsInUseVoLTE : false
D/ConfigUtils( 1585): setSupportedUsimMobilityForVoLTE() : false
So this should be something LG and T-Mobile are working on and should enable soon, especially since the G Flex already supports it.

havanahjoe said:
I missed that during the Earnings Call yesterday, John Legere announced VoLTE is now available nationwide!
https://twitter.com/JohnLegere/status/494991141251874816
Unfortunately, the G3 does not support it yet. I have seen VoLTE messages in the logs:
I/[SystemUI]VoLteImageView( 1201): onReceive = android.intent.action.CONFIGURATION_CHANGED
D/PhoneApp( 1585): getIsInUseVoLTE : false
D/ConfigUtils( 1585): setSupportedUsimMobilityForVoLTE() : false
So this should be something LG and T-Mobile are working on and should enable soon, especially since the G Flex already supports it.
Click to expand...
Click to collapse
I noticed today when calling someone I get the HD Voice badge that shows up in the dialer while in call. So the quality will improve, even more? Because the difference is already insane.

mzrdisi said:
I noticed today when calling someone I get the HD Voice badge that shows up in the dialer while in call. So the quality will improve, even more? Because the difference is already insane.
Click to expand...
Click to collapse
I don't think you'll get better quality than HD Voice, but your phone won't have to jump down to 4G to make or receive calls.

I did find a setting in the Engineering Menu of the phone where you can turn on the VoLTE on the phone last week. I did just try it turning it on and the phone reboots itself, tried making a few calls but it still drops down to 4G and doesn't maintain the LTE connection.
Still get the HD Voice icon on the calls, but I guess Tmobile didn't change or update the provisioning on the G3 yet for VoLTE, obviously, but worth the try.
For those that want to know where that particular setting is, tap in 3845#*851# in the dialer, then tap on "WCMDA-Only" (7th one down) then "Modem Settings" (3rd down) then scroll to the bottom and tap "VoLTE Radio NV On/Off" (2nd from last) and then you can choose On or Off and the prompt will say you need to reboot the phone.

JustLok said:
I did find a setting in the Engineering Menu of the phone where you can turn on the VoLTE on the phone last week. I did just try it turning it on and the phone reboots itself, tried making a few calls but it still drops down to 4G and doesn't maintain the LTE connection.
Still get the HD Voice icon on the calls, but I guess Tmobile didn't change or update the provisioning on the G3 yet for VoLTE, obviously, but worth the try.
For those that want to know where that particular setting is, tap in 3845#*851# in the dialer, then tap on "WCMDA-Only" (7th one down) then "Modem Settings" (3rd down) then scroll to the bottom and tap "VoLTE Radio NV On/Off" (2nd from last) and then you can choose On or Off and the prompt will say you need to reboot the phone.
Click to expand...
Click to collapse
Good find! I was going through the list today and none of the items jumped out at me. It's just buried deep. I'll give it a try and see what comes up on the logs if we enable it through the engineering screen.

FYI - noticed the same setting under LTE-only

JustLok said:
I did find a setting in the Engineering Menu of the phone where you can turn on the VoLTE on the phone last week. I did just try it turning it on and the phone reboots itself, tried making a few calls but it still drops down to 4G and doesn't maintain the LTE connection.
Still get the HD Voice icon on the calls, but I guess Tmobile didn't change or update the provisioning on the G3 yet for VoLTE, obviously, but worth the try.
For those that want to know where that particular setting is, tap in 3845#*851# in the dialer, then tap on "WCMDA-Only" (7th one down) then "Modem Settings" (3rd down) then scroll to the bottom and tap "VoLTE Radio NV On/Off" (2nd from last) and then you can choose On or Off and the prompt will say you need to reboot the phone.
Click to expand...
Click to collapse
Did it work or does lte stay on or does it revert to back to 4g?

raw2000j said:
Did it work or does lte stay on or does it revert to back to 4g?
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Click to collapse
I tried it and my calls fell back on 4G

havanahjoe said:
I tried it and my calls fell back on 4G
Click to expand...
Click to collapse
Dam

raw2000j said:
Dam
Click to expand...
Click to collapse
I haven't found a way to tell if it's enabled or not after the reboot.

Guess if it switches to 4g its not working

raw2000j said:
Guess if it switches to 4g its not working
Click to expand...
Click to collapse
Haha true! I just would like to know if it's not working because the setting didn't stick or because it's not working even with it sticking.

Will the volte count against your data usage once it's live?

mdowns989 said:
Will the volte count against your data usage once it's live?
Click to expand...
Click to collapse
No

I know some G3 users got a update but not sure what carrier. I wonder if that makes it stick?

AT&T but they don't have volte

Sorry for the late reply, as others have said, the G3 still drops to 4G when on a call. I did notice it takes a while to get back onto LTE after hanging up, unless you put it into Airplane Mode and then back off.
The only folder I could find on the phone with VoLTE was in /sys/devices/fe02c000.sound/VoLTE/
In that folder, in /power/ is a file called runtime_status and it lists it as "unsupported".
Outside of that, I can't find any other setting or file that says VoLTE is on or other, outside of the Engineering menu or that lonely folder.

I take it this won't work if we're using AT&T?

Volte not working

I noticed my Volte provision shows to Turn On - but I have tried several times with no luck and I had it on my other device and usually no problem to turn it on or off on those devices.
If someone doesn't mind can you go into Radio Info. Unless you have a code# to type in, I use the app Hidden Android Settings. Download it and scroll down and go in
Radio Info and it's at bottom and see if yours say
Turn on Volte Provisioned Flag or is it on like it's supposed to be Thanks ahead of time.

HD Voice(VZW term for VOLTE) is on by default on the Verizon Note 7.
Sent from my SM-N930V using Tapatalk

Oh ok so the button in hidden settings doesn't matter, whew i'm glad, I was begining to worry that my volte button and device was giving problems. Thanks

easy way to check is just call someone and see if the HD voice text is shown on your dial screen.

androidbuff123 said:
easy way to check is just call someone and see if the HD voice text is shown on your dial screen.
Click to expand...
Click to collapse
It's not

Call someone who also has VoLTE or hd voice. It should show up. If not check under settings, advanced calling features.
Maybe it's turned off on yours.
Sent from my SM-N930V using Tapatalk

I called wife, she also has it. No luck on my end. I have it selected in settings.
But to me it would seem like if it's selected then the volte provision should also be On under hidden menu, wouldn't you.

The *#*#4636#*#* doesn't seem to bring up the hidden options menu. I am not sure how you access the hidden menu on this phone.
Sent from my SM-N930V using Tapatalk

app Hidden Android Settings from playstore then I opened it and went into Radio Info

androidbuff123 said:
The *#*#4636#*#* doesn't seem to bring up the hidden options menu. I am not sure how you access the hidden menu on this phone.
Click to expand...
Click to collapse
If your rooted you need to enable hidden menus by editing the file below
/efs/carrier/HiddenMenu
there is only 1 entry - OFF, change this to on.
Even after doing this the code mentioned does nothing.

Data While talking- Hotspot

Does this Pixel 2 not have Data while on voice? Seems when I get a call I drop data.

It does you have to activate it using this code *#*#4636#*#* type into phone dialer. A menu will pop up chose phone info and activate everything in the picture. You now have data on calls.

bigv5150 said:
It does you have to activate it using this code *#*#4636#*#* type into phone dialer. A menu will pop up chose phone info and activate everything in the picture. You now have data on calls.
Click to expand...
Click to collapse
Perfect - Thank You

bigv5150 said:
It does you have to activate it using this code *#*#4636#*#* type into phone dialer. A menu will pop up chose phone info and activate everything in the picture. You now have data on calls.
Click to expand...
Click to collapse
I'm looking at your picture and see EAB/Presence Provisioned with the toggle turned on. Mine is greyed out and won't toggle. What does this item do?

Mine are grayed out too on cricket. It is carrier/sim dependent.

this is a carrier issue.
no issues with me on tmobile usa

It does depend on the carrier. If you're using Sprint, it will be greyed out. You can switch to different carriers if you're using Project Fi by opening the dialler and hitting *#*#FITMO#*#* (t-mobile)
*#*#FIUSC#*#* (US Cellular) There may be others that support it, but those are the ones I know of.

No data during call after oreo update

Hello. I'm hoping that someone can help me out. I have a Verizon note 8 that i use on straight talk for the longest it never would update to oreo but then i cracked the screen and purchased another used verizon note 8 from ebay. It came to me with a cricket sim card in it. I turned it on and connected it to wifi just to check it out before i transferred anything and it immediately wanted to update so i let it and it updated to oreo. I swapped over my ST sim into the new phone and stuck the cricket sim into the old phone and it updated too. But now my problem is that I keep getting the message that data is unavailable during calls. When i check the settings it says i am on CDMA/EVEDO/GSM/WCDMA. And there is no option to edit my APN. If i click on the mobile network i have the option for LTE/3G/2G but if i choose this nothing works and i have no option to go back to the CDMA/EVEDO/GSM/WCDMA and thus have to do a factory reset. I have tried texting APN to 611611 but it states my APN is already setup. I called tech support for ST and they told me to call back from another phone which i cant do until this evening when i get off work. So i thought in the mean time i would reach out to the real pro's on here and see if anyone else has had this issue. Did i mess up by updating with the cricket SIM inserted? Or could it be that i just didnt call straight talk when i swapped phones? i just took the sim card out of one phone and stuck it in the other. I really appreciate any advice anyone may have. Oh and I've tried finding the settings for HD calling to enable them, not there.
Thanks,
Amy

I'm having this same issue with my Verizon branded note 8 that I manually updated to Oreo. I called my carried, Red Pocket and they stated that this is enabled for my account. In Oreo the hidden menus seem to be disabled and I've tried other things. I may have to see if I can go back to Nougat. The dialer hidden menu I tried was *#2683662#. On the Verizon forums, other were able to get to the menu using *#4636# and enable VoLTE but that seems to be disabled for me. I tested from my coworkers note 8 and it seems to work fine on their phone.

sixtythreechevy said:
I'm having this same issue with my Verizon branded note 8 that I manually updated to Oreo. I called my carried, Red Pocket and they stated that this is enabled for my account. In Oreo the hidden menus seem to be disabled and I've tried other things. I may have to see if I can go back to Nougat. The dialer hidden menu I tried was *#2683662#. On the Verizon forums, other were able to get to the menu using *#4636# and enable VoLTE but that seems to be disabled for me. I tested from my coworkers note 8 and it seems to work fine on their phone.
Click to expand...
Click to collapse
I reflashed CRID and the CSC but my Service Provider SW ver. still says VZW/XAA/VZW. Does anyone know how to fix this?

Has anyone figured this out? I am having this very issue and Straight Talk has no clue what I am talking about.

I found this on the Samsung website and it looks promising but nothing has changed. I was able to see that the radiobutton/checkbox for LTE Enhanced is checked.
To enable HD Calling, download Shortcut Master (Secret Codes) Lite from developer vndnguyen. You will need to find the apk as it does not appear to be in the play store any longer.
1) From the option menu located in the upper right hand corner, choose Search.
2) There is a search field at the bottom of the screen. Type lte then hit the Search key.
3) Scroll down to Mobile Networks. Choose the one that show EnhancedLteServices. Then click Launch. Then click the box to enable HD Calling.
I was also able to set the APN settings to Bearer: unspecified using Shortcut Master lite but this made no difference whatsoever.
Finally, you don't need to do a factory reset each time you go from CDMA/EVEDO/GSM/WCDMA to LTE/3G/2G (auto connect), simply search in settings for reset network and then reset the network settings and reboot.

I was able to get the SIM card trick to work for me on my Note 8 as well. I have redpocket and prior to doing the sim card trick I did not have VoLTE. Now I do. It's too bad that this is majorly inconvenient and it won't stick after a reboot, by the sounds of it. I haven't tried yet. I may just tape the sim to the back of my phone or inside my case. Also, on my Note 8 prior to this, I was seeing vzw/xaa/vzw and now it has the vzw/vzw/vzw CSC with the RP sim in. I'm hoping that there is another way to fix this but at least I have a work around.

I updated to Oreo on my verizon note 8.
I dont have any options for advanced HD Calling, Wifi calling.
When I go to ims settings it says denied.
Any ideas

dpoverlord said:
I updated to Oreo on my verizon note 8.
I dont have any options for advanced HD Calling, Wifi calling.
When I go to ims settings it says denied.
Any ideas
Click to expand...
Click to collapse
I answered you on the other thread just so know..