Database Info

G920R7 GSM Unlock..... Feel like I'm close....

I'm on PD1 6.0.1 with a G920R7 nTelos. I rooted using CF-Auto root, flashed TWRP for the g920p, and installed the zip file from this thread... http://forum.xda-developers.com/showthread.php?t=2394689
After that I installed Phone INFO ★Samsung★ and used it to access the hidden menus. Went to the 2263 menu and set all band preferences to all and selected the LTE/GSM mode only, then went to the 4636 menu and set the radio to GSM/LTE (prl) auto. I've tried GSM only and it switches back to GSM/LTE (prl) auto on its own.
I now have access to a mess of options in the network mode selection screen in settings, and setting it to GSM only and 3g only still does not allow me to catch signal. In network operators it shows AT&T, yet if you try to manually select the network it never goes through. *#0011# still shows it switching through LTE bands and not staying on one or registering on the network. In the device info screen (4636 menu) it shows the correct phone number and AT&T for current network, but under cellinfo still shows it switching between LTE bands and under GSM disconnects it shows ======DATA======.
At this point I'm not quite sure what to try next. Please let me know if anyone has any ideas to try. Thank you.
EDIT: I've also tried the G920P domestic unlock and G920R4 unlock with a box, but no luck with either as expected.

i can do remotely if u want

blazie151 said:
I'm on PD1 6.0.1 with a G920R7 nTelos. I rooted using CF-Auto root, flashed TWRP for the g920p, and installed the zip file from this thread... http://forum.xda-developers.com/showthread.php?t=2394689
After that I installed Phone INFO ★Samsung★ and used it to access the hidden menus. Went to the 2263 menu and set all band preferences to all and selected the LTE/GSM mode only, then went to the 4636 menu and set the radio to GSM/LTE (prl) auto. I've tried GSM only and it switches back to GSM/LTE (prl) auto on its own.
I now have access to a mess of options in the network mode selection screen in settings, and setting it to GSM only and 3g only still does not allow me to catch signal. In network operators it shows AT&T, yet if you try to manually select the network it never goes through. *#0011# still shows it switching through LTE bands and not staying on one or registering on the network. In the device info screen (4636 menu) it shows the correct phone number and AT&T for current network, but under cellinfo still shows it switching between LTE bands and under GSM disconnects it shows ======DATA======.
At this point I'm not quite sure what to try next. Please let me know if anyone has any ideas to try. Thank you.
EDIT: I've also tried the G920P domestic unlock and G920R4 unlock with a box, but no luck with either as expected.
Click to expand...
Click to collapse
Stifilz does remote unlocks also for free

asadnow2k said:
i can do remotely if u want
Click to expand...
Click to collapse
I have a box but the device isn't supported, it's not locked I must just be missing something. Anyway you could private message me what I'm missing? I've been through all the settings messing with it and all, even flashed the CDMA to GSM zip floating around here. I know I'm missing something silly. Any help would be appreciated and I don't mind sending you a donation provided I can do this myself next time.
TheMadScientist420 said:
Stifilz does remote unlocks also for free
Click to expand...
Click to collapse
I just messaged him on Hangouts. I don't know if its something he can help with or not because I believe we have the same box and the g900r7 isn't supported. This isn't even answered on that Voldemort website.

Did you figure this one out? I'm also interested in GSM unlocking this phone.
Messing around with it I was able to get an ATT Sim card to pull 3g data but no call/text or lte.

[Completed] Help! Tmobile Samsung S7 locked only on 1800 mhz band. Already rooted

Hi everyone.
Last time i was in xda forums was when i try to mod my windows mobile CE 5.0 lol
This is my sad story:
I bought in the US a samsung s7 with T-Mobile SM-G930T, i paid a guy who 'unlocked' it in there. After that i brought it to Colombia, in here i run the T-mobile unlock app which succeded and erased itself after that. Then the cellphone started working with all the mobile companies in my country except for one that operates over 1800 mhz, other companies do work fine. When i insert a simcard of this company it just says that 'Not registered in network' and wont do nothing. I already tried to put the APN settings correctly (Actually it automatically loaded every company settings detected).
After that i tried to root with a modded Odin with a custom ROM and it succeeded and i got the SuperSU application, tho the cellphone its a little laggy now, but neither that way it worked. Anyone knows how where should i start looking?
I went to this company support and they sent me to Samsung support, which redirected me back to this company, lol
Thanks in advance guys

XDA Visitor said:
Hi everyone.
Last time i was in xda forums was when i try to mod my windows mobile CE 5.0 lol
This is my sad story:
I bought in the US a samsung s7 with T-Mobile SM-G930T, i paid a guy who 'unlocked' it in there. After that i brought it to Colombia, in here i run the T-mobile unlock app which succeded and erased itself after that. Then the cellphone started working with all the mobile companies in my country except for one that operates over 1800 mhz, other companies do work fine. When i insert a simcard of this company it just says that 'Not registered in network' and wont do nothing. I already tried to put the APN settings correctly (Actually it automatically loaded every company settings detected).
After that i tried to root with a modded Odin with a custom ROM and it succeeded and i got the SuperSU application, tho the cellphone its a little laggy now, but neither that way it worked. Anyone knows how where should i start looking?
I went to this company support and they sent me to Samsung support, which redirected me back to this company, lol
Thanks in advance guys
Click to expand...
Click to collapse
Hi,
It seems your phone is region locked due to which you are locked onto a particular mhz network frequency...
yes the first step would be to try to a custom rom to see if this over rides this situation or you could try below situation below... this is ideally for s6.... or atlast google search...
http://forum.xda-developers.com/verizon-galaxy-s6/general/enabling-using-servicemode-t3109579
Ok, since now we have root, many users wanted to know if they can lock onto certain LTE frequency bands using Samsung's ServiceMode. So here is a quick guide.
ServiceMode is Samsung's proprietary Engineering Mode, built within the TouchWiz framework, readily available on International variants, and some domestic like T-Mobile. It allows us to observe the RF connection, change certain RF related settings, and lock our phones onto specific technologies and frequencies. Sadly, Verizon has been blocking user access to Engineering Mode for years now.
So in order to enable access to ServiceMode on Verizon GS6/Edge you'll need to:
- Download Root Explorer
- Navigate to /efs/carrier/HiddenMenu
- Use TextEdit to open it (not text viewer)
- Change the value to ON (upper case), Save and Exit
- Restart the phone
Once restarted you can dial:
*#0011# to observe the connection
If you want to lock your device onto a specific LTE band (13, 4, 2):
*#27663368378#
- UE Settings & Info
- Settings
- Protocol
- NAS
- Network Control
- Band Selection
- LTE Band Selection
Here you can force your phone onto a specific Verizon LTE Band (13, 4, 2), or use LTE ALL if you have VoLTE (Advanced Calling) enabled as this will eliminate the need for CDMA radios.
To go back to default, go through the same process but at Band Selection make sure to chose AUTOMATIC.
There are a lot more settings here, you can enable AMR WB on UMTS if you use T-Mobile so you can get HD Voice on their UMTS layer, etc... Carrier Aggregation has already been enabled, so no need to tweak that.
If you aren't sure what certain settings and values correspond to, it's better to avoid tinkering. You're responsible for your own actions.

According to this thread, he posted via visitor.
Then he registered and posted his query here so he seems to have posted in correct section.
Just documenting this here.
Thread closed!
Regards
Vatsal,
Forum Moderator.

LTE+ How to enable!

LTE+ The Easy Way!
I've been pulling out my hair trying to get LTE+ and root at the same time. I was doing something differently two days ago and couldn't figure out what it was. And then BAM! :laugh:
If you follow the BlueFox721 Carrier Switch Guide and go with unlocked firmware, let's say Att or Tmobile, you at a certain point "Echo" in the sales code for that company... like ATT or TMB. I changed mine to TMB for UNLOCKED Tmobile, but TMB is ALSO the code for LOCKED Tmobile. Basically when I would reset for SamFail, (Nearly identical to PwnFail but for Note 8) the system was seeing a US based phone, asking for a TMB setup, so I got LOCKED TMB 4GLTE
All I had to do after rooting to achieve LTE+ was:
Go through the phone setup process
Install Terminal Emulator, run TE, type SU for Super User (You have to grant it Su access, and if the SU command works the $ symbol in TE will become a #)
Then type the following:
echo "XAA" > /efs/imei/mps_code.dat
Then press return!
And then type
Exit (followed by return)
And finally
Exit (you guessed it, return again!)
(The first Exit gets you out of SU, the second one closes Terminal Emulator)
That changes the sales code to US unlocked. Then reboot into recovery, do a factory reset, and when your phone boots it will probably show H for signal. After setup if it isn't LTE or LTE+ just toggle Airplane mode on and off and Voila! You should be now able to get LTE/LTE+ !!!
Hopefully this can save people some headaches and provide faster internet to the masses!
(I had max download speed on speed test 103mbps)
If you need the carrier apps like visual voicemail, Verizon or other carrier app, check PLAY STORE, or try the method below:
Originally Posted by*BlueFox721*
"Some T-Mobile users were able to use carrier functions straight out of the gate with unlocked firmware. Others had to flash carrier CSC and others needed csc and USERDATA files...some were able to use just shortcut master lite to enable features..."
Thanks out to :good: BlueFox721, :good: PartCyborg and the rest of you awesome people that make this community great!

OptimuSlime said:
LTE+ The Easy Way!
I've been pulling out my hair trying to get LTE+ and root at the same time. I was doing something differently two days ago and couldn't figure out what it was. And then BAM! :laugh:
If you follow the BlueFox721 Carrier Switch Guide and go with unlocked firmware, let's say Att or Tmobile, you at a certain point "Echo" in the sales code for that company... like ATT or TMB. I changed mine to TMB for UNLOCKED Tmobile, but TMB is ALSO the code for LOCKED Tmobile. Basically when I would reset for SamFail, (Nearly identical to PwnFail but for Note 8) the system was seeing a US based phone, asking for a TMB setup, so I got LOCKED TMB 4GLTE
All I had to do after rooting to achieve LTE+ was:
Go through the phone setup process
Install Terminal Emulator, run TE, type SU for Super User (You have to grant it Su access, and if the SU command works the $ symbol in TE will become a #)
Then type the following:
echo "XAA" > /efs/imei/mps_code.dat
Then press return!
And then type
Exit (followed by return)
And finally
Exit (you guessed it, return again!)
(The first Exit gets you out of SU, the second one closes Terminal Emulator)
That changes the sales code to US unlocked. Then reboot into recovery, do a factory reset, and when your phone boots it will probably show H for signal. After setup if it isn't LTE or LTE+ just toggle Airplane mode on and off and Voila! You should be now able to get LTE/LTE+ !!!
Hopefully this can save people some headaches and provide faster internet to the masses!
(I had max download speed on speed test 103mbps)
If you need the carrier apps like visual voicemail, Verizon or other carrier app, check PLAY STORE, or try the method below:
Originally Posted by*BlueFox721*
"Some T-Mobile users were able to use carrier functions straight out of the gate with unlocked firmware. Others had to flash carrier CSC and others needed csc and USERDATA files...some were able to use just shortcut master lite to enable features..."
Thanks out to :good: BlueFox721, :good: PartCyborg and the rest of you awesome people that make this community great!
Click to expand...
Click to collapse
Worked for me lol
Been trying to change it for a week now and kept changing back to orig

Hi my s8 is already unlocked one and our country has 4g+. Will it work?

Depends.
tosunkaya said:
Hi my s8 is already unlocked one and our country has 4g+. Will it work?
Click to expand...
Click to collapse
The "Carrier Aggregation" has to be enabled in your area by the phone carrier. If it is then I believe it will, but this just enables it on the phone, not in the towers

OptimuSlime said:
The "Carrier Aggregation" has to be enabled in your area by the phone carrier. If it is then I believe it will, but this just enables it on the phone, not in the towers
Click to expand...
Click to collapse
Is there different 4g+ sign on the top?
4.5g = 4g+ (lte plus) Vodafone app says; my phone, simcard and tower are compatible. Also using volte and vowifi. But i cant get 4g+ speed.

tosunkaya said:
Is there different 4g+ sign on the top?
4.5g = 4g+ (lte plus) Vodafone app says; my phone, simcard and tower are compatible. Also using volte and vowifi. But i cant get 4g+ speed.
Click to expand...
Click to collapse
Couldnt upload other Screenshot

Well
tosunkaya said:
Couldnt upload other Screenshot
Click to expand...
Click to collapse
On my phone I only connect to band 2 on TMB. When I boot as XAA I get 2 and 12, and the LTE gets a Plus. You can use *#0011* to see your bands. It'll show the LTE you are on, and below that the CA line will either say 0 0, needs configuring, or show the 2nd band of your CA.
I never use Wificalling and Google Duo is at least as good as tmobile video calling so U1 firmware is best for me.

OptimuSlime said:
On my phone I only connect to band 2 on TMB. When I boot as XAA I get 2 and 12, and the LTE gets a Plus. You can use *#0011* to see your bands. It'll show the LTE you are on, and below that the CA line will either say 0 0, needs configuring, or show the 2nd band of your CA.
I never use Wificalling and Google Duo is at least as good as tmobile video calling so U1 firmware is best for me.
Click to expand...
Click to collapse
My service mode
Do i need

TheMadScientist said:
Worked for me lol
Been trying to change it for a week now and kept changing back to orig
Click to expand...
Click to collapse
How did you do it? I'm always stuck on the screen where it says, "Restart your phone to configure the features supported by your new SIM card. This will reset your phone to its factory default settings, erasing all data, including files and downloaded apps."

DaNamesFrank said:
How did you do it? I'm always stuck on the screen where it says, "Restart your phone to configure the features supported by your new SIM card. This will reset your phone to its factory default settings, erasing all data, including files and downloaded apps."
Click to expand...
Click to collapse
Each diffrent sim i put in it does the restart and install the carrier apps Tried it on att cricket xfin straighttalk
So if I were to switch carriers rite now and install there sim all I have to do is reboot 2 times and I am ready to go

I can only connect to LTE after doing this no LTE+/4G/3G/2G

OptimuSlime said:
On my phone I only connect to band 2 on TMB. When I boot as XAA I get 2 and 12, and the LTE gets a Plus. You can use *#0011* to see your bands. It'll show the LTE you are on, and below that the CA line will either say 0 0, needs configuring, or show the 2nd band of your CA.
I never use Wificalling and Google Duo is at least as good as tmobile video calling so U1 firmware is best for me.
Click to expand...
Click to collapse
Will it just work on U if you enable band 12 in service mode?

Can you flash ATT, VZW to XAA Branded in Download Mode

Forgive me if this has been covered but I havn't found the answer. I've flashed just about every phone I've ever had but my question here is can I / how do I flash to where the phone reads as XAA in download Mode?
The situation is my phone was originally on at&t. They unlocked it and I'm on Verizon. It all works great (it still says at&t on download Mode screen)
My problem is that if I log into the my Verizon app it disables my visual voicemail. I finally got a Verizon tech on the phone that explained that it is unsupported due to originally being on a different carrier and their system identifies that and disables the VVM. The only fix I can find is to put my sim in my backup S9+ that came from Samsung unlocked (or any Verizon phone) and I can then reactivate my VVM by resubscribing.
I currently have 3 Note 20 Ultras. One Each originally from Samsung, ATT and Verizon but the AT&T is the only one that is 512GB or I would just switch phones. I have flashed them all to U1 firmware but notice they all still reflect the original carrier in Download Mode so again my question is can I change this by flashing it / or is it just a matter of what sim card is in it when it's flashed? I need it to be seen as XAA by Verizon system so not to loose VVM... Pics attached.
Any advice here is greatly appreciated in advance.

Just a try... You can try the *#272*imei# method... But thats If it works. Not sure if the sims has to be in the phone for that to work.

GDHAMTON7 said:
Just a try... You can try the *#272*imei# method... But thats If it works. Not sure if the sims has to be in the phone for that to work.
Click to expand...
Click to collapse
Yes it brings up this menu... So I just select the XAA and that's it? I've been reading forums and this method is reversible it seems ... I'm familiar with Odin and all that but these hidden menus are new to me...
Thanks for the reply btw

You may have to activate the bottom most option to stay.
Don't worry if you can't access the menu after the change. You can download samsung band selection and change to automatic or one of the lte options then back to automatic to get to the menu.

CSC Guide
CSC (which I think means Carrier Service Code) helps to set what options for settings show in the device for things like voicemail and wifi calling, as well as sets network code information for things like carrier aggregation combos.
When you go to your phone settings->about phone->software information and look in the Service Provider SW ver. section, you will see as the last line a combo like XXX/YYY/ZZZ. This indicates what carrier sales and network code is set and what brand the phone was manufactured as.
I think of the XXX/YYY/ZZZ configuration as follows
XXX=Sales Code-What kind of features are setup in the firmware like wifi calling, video calling and settings menus
YYY=Network Code-What kind of network features are set for things like carrier aggregation and LTE/5G bands
ZZZ=Manufactured as Code- What model the phone was originally manufactured as. Ot has no affect on the system settings or options. THIS CAN NOT CHANGE. IT SHOULD ALWAYS BE THE SAME. ONLY A ROOTED PHONE WOULD BE ABLE TO ACCESS THE FILES NECESSARY TO CHANGE THIS.
for more details, refer to post:-
[Guide] Service Mode and CSC Guide/Enable LTE/5G Bands and Services/5G Low Band on U1
Hello All, Many people have asked about service mode and CSC related questions and I thought we should get a discussion going that is all in one place. *DISCLAIMER* I do not take any responsibility for any issues that may occur from changing...
forum.xda-developers.com

Is there any way to make IMS settings permanent or stop Android from auto discovering IMS settings on boot?

So, I've got a Galaxy S10e, with a model number G970U1, and the entire reason I bought this thing was so that I could use voice over LTE on AT&Ts network - it was one of the model numbers listed that was supported by AT&T, however, the phone itself, while being brand new, was originally a Verizon phone, as the phones CSC states that it is XAA/XAA/VZW. Upon insertion of my ATT sim card, the phone did not adapt to being an ATT CSC, even though it has the OYM software that should have the ATT CSC in it. I have tried a ton of things to try to get it to switch CSCs, from flashing an ATT CSC in Odin, to just doing resets with and without the sim card in, to literally paying $35 for Samkey to try their CSC changer, but simply doesn't work. nothing I do will get this thing to switch to the ATT CSC.
Anyways, as a consequence of not running the ATT CSC, VoLTE does not work. ATT has already provisioned the phone for VoLTE but the phone simply doesn't automatically acquire an IMS registration upon boot. I've discovered after many hours of trial and error, a way to make VoLTE work, but I can't find a way to make the fix stick between boots. This is where I'm hoping somebody else can come in and help. I'm looking to try to get the phone to stop automatically discovering IMS settings since I think it's this very auto discovery that is causing my fix not to stick.
Here is what I have to do every time the phone reboots to get volte working:
Open Alliance Shield X, go to App Manager
Search for IMS settings, click it, go to activities, and then launch the IMS settings menu with the first activity in the list.
Go to the IMS service settings, upon clicking of the IMS service settings, ALL of the toggles for RCS and MMTEL will be off and the upper left corner says "ATT US" - I toggle all of the toggles on and wait about 10 seconds
Go to settings, about, sim card status, and at this point my IMS registration status should have gone from not registered, to registered, however, VoLTE still doesn't work at this point.
Switch back to the IMS settings menu, go back a page and then click "Reset to default" to reset all IMS settings to default. Here is where things get strange - at this point, the IMS settings menu will claim I am using the T-Mobile IMS settings - but at this point my IMS registration status will remain registered, and VoLTE will work properly until I restart the phone.
I want to try to keep these settings, but like I said, once I reboot the phone, it gets the ATT IMS settings and VoLTE will refuse to work, and my IMS will not be registered.
Any advice?

PhotonDispenser said:
... Any advice?
Click to expand...
Click to collapse
Do you absolutely HAVE to have ATT? You would likely get better results with T-mobile.

MrGoodtunes said:
Do you absolutely HAVE to have ATT? You would likely get better results with T-mobile.
Click to expand...
Click to collapse
Not necessarily, but the issue is that I've got 6 lines on AT&T, with some of the phones not being paid for.

You might try this method. Download the Latest same firm tool. Hit this tool is basically used for removing the FRP lock on phones, and it actually does work for that, but one other feature the program has is the ability to change the CSC code on your firmware. Which it did successfully, until the phone was rebooted and then it locked back on to AT&t. So the trick I think would be that after you use the tool and before you reboot the phone do whatever you're going to do because it you can change it to xas or xaa in which case it's unlocked and you should be able to manipulate it. I have never actually done this but in theory I think it might work good luck brother keep fighting the good fight