yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S22 Ultra] lexcyn:
Yep I did, and actually I fixed it but not with method 1 (I've gone through that a bunch of times) - after switching to GCF for the second time and rebooting, I can see N78. Not sure what was going on there.
[Samsung Galaxy S22 Ultra] Jimmy_J:
Try install latest Samsung usb drive then try again. I got the same problem and it works for me. I'm on Android 13.
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
Tick Tock.....

Tick Tock.....
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
MY NEWEST ACHIEVEMENT

TURN YOUR SPEAKERS UP FOR EFFECT.......Enjoy the Spielberg Production 🤣🤣🤣🤣
[Samsung Galaxy S22 Ultra] PapaDocta:
Beautiful work my dear friend.

Kudos to you and your hard work
[Samsung Galaxy S22 Ultra] rayw_xda:
Is this by any chance using the leaked OEM signing keys 😉
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
No. It has nothing to do with what was leaked. And what was in leak is pretty useless. Anything labeled.... private keys is NOT what you think it is....there are some useful things depending on the purpose.....but ROOT....BL unlock....is definitely not in there.
[Samsung Galaxy S22 Ultra] DoctorNasty:
I followed this guide and unlocked all bands but every second LTE goes to LTE+ and than back. LTE+ doesn't last more then 3 seconds. Can anyone help me with that?
[Samsung Galaxy S22 Ultra] lexcyn:
Did you try and do this:
[Samsung Galaxy S22 Ultra] DoctorNasty:
Thanks for the reply. I did tried that but it doesn't matter if disable is on or off. Same problem.

I don't know why bands keep changing every seconds but overall LTE speed seems improved.
[Samsung Galaxy S22 Ultra] lexcyn:
Hmm that is odd. I know for me it flashes + then off but then back to + and stays on, but only in areas that support it.
[Samsung Galaxy S22 Ultra] peacey8:
Did you try it in different locations like around your city? If your phone doesn't stay on LTE+ it likely means the signal level to the other towers is very low.

To debug, you should use an app like LTE Discovery and look at the signal level of the neighbour cells when it switches to LTE+. If the signal is very low, the issue is just coverage.

Do you have another phone that stays LTE+ in the same area?
[Samsung Galaxy S22 Ultra] DoctorNasty:
Thanks, I will try to debug using mentioned app.

I have my wife's iPhone but it always shows 4G. I don't think iPhones show LTE+ at all.
[Samsung Galaxy S22 Ultra] peacey8:
See the attached picture below for where to look in the LTE Discovery app for the neighbor cells' signal levels.

Also, keep in mind that the phone will switch to LTE+ only when data is in use. If you are not using any data at the moment, the phone will stay on LTE to preserve battery.

View attachment 5784643
[Samsung Galaxy S22 Ultra] _hollywood_:
Does anyone know how to bring up the service menu with root? none of the codes are are working for me
[Samsung Galaxy S22 Ultra] peacey8:
This method is only for the US/Canadian model (U/U1/W), and those models don't have root since you can't unlock their bootloader. And you don't need root for those models to use this method anyways. This method is not known to work on other models (European, Asian, etc).

Which model do you have?
[Samsung Galaxy S22 Ultra] DoctorNasty:
I tested LTE+ in other neighborhoods and works perfectly, even underground.

Is there anyway I can force enable VoLTE?
[Samsung Galaxy S22 Ultra] _hollywood_:
Actually you can unlock the bootloader through paid service, but you have to be on binary bit 1 firmware.

I can root my phone, I would just like to know the process to get to the service menu with root before I root my phone.
[Samsung Galaxy S22 Ultra] peacey8:
I'm aware there's an exploit floating around for older bootloaders, but this method doesn't need root. Just follow the instructions in the OP, and if it doesn't work, try to change your CSC and try again. It's literally worked for like 100 people now, no reason why it shouldn't work for you if you have U/U1/W model.

As for the root method, you might want to search around the forums, I think I've seen old threads from older phones talking about unlocking service menu from root. Though, I don't know anything about that method. Good luck!
[Samsung Galaxy S22 Ultra] peacey8:
VoLTE or VoWiFi is provisioned by your carrier. Go to Settings -> About Phone -> Status Information -> Sim Card status -> Look at IMS Registration Status. If it's "Not registered", it's most likely a problem with your carrier blocking IMEIs they don't approve (out of country phones, etc). I have that problem here in Canada with one carrier, so VoLTE/VoWiFi doens't work for me either on my US phone with my carrier.
[Samsung Galaxy S22 Ultra] DoctorNasty:
View attachment 5785263

I don't have that option.

Yeah, maybe you're right.

Thank you for your help 🙏
[Samsung Galaxy S22 Ultra] lexcyn:
"Mobile voice network type" is LTE which means VoLTE is active. You will know for sure if you make a call and it stays on LTE vs switching back to 4G/H+
[Samsung Galaxy S22 Ultra] DoctorNasty:
It's switching to H+
[Samsung Galaxy S22 Ultra] lexcyn:
Dang, you might just be out of luck unfortunately. I was in the same situation as @peacey8 was where my carrier was blocking all phones not purchased in Canada, so I had to switch to a different carrier that allows any Samsung phone purchased in NA to provision with VoLTE and VoWiFi. Some carriers have stricter rules.
[Samsung Galaxy S22 Ultra] masterinc:
For me, vowifi and volte is working, but not LTE A or 4G+... always connected to one band. did compare with iPhone.
[Samsung Galaxy S22 Ultra] luckk:
I can't get my s22 ultra to diag mode. Is not for the porpouse of the thread but i tried all you guys said in here but can't manage to recognize the phone as diag on Qfil software or on windows device. if someone can help my imei is zeros.
[Samsung Galaxy S22 Ultra] peacey8:
Are you sure your phone isn't stolen or a display model?
[Samsung Galaxy S22 Ultra] luckk:
Sure, it even has the imei in the back
[Samsung Galaxy S22 Ultra] Blackberrynomore:
This is great thank you for the write up peacey8! What can I use to monitor what bands the phone is currently using?
[Samsung Galaxy S22 Ultra] digheaditya67:
Hey Guys, I just went through the process, on a diff phone and have got issues

--------------------------------------------------------------------------------------------------

But --- First I would summarize some good solutions given by others...

#You never need to press the dial button in dialer, that means your code is not working.

Use SamFW tool - use unlock dialer codes option -- so you can enable other options in dialer.....

While using that you need to change usb mode to "DM + MODEM + ADB" using *#0808# when it gets stuck at "Waiting for DIAG"

and then later switch back to ADB + MTP again.

If it still remains stuck at waiting for DIAG, reinstall different version of samsung usb driver , maybe try a month older, remove cable, quit samFW and retry...

then dialer codes start working, and you can follow the rest of the article....

--------------------------------------------------------------------------------------------------

Firmware related --- You can install U1 firmware on U phones.... i.e. N986U can work with N986U1 firmware

2) Don't Upgrade to latest firmware's always, especially if the bootloader bit is upgrading with it....

more on it -- here Samsung Firmware number info

You might be able to use a combination file to achieve certain things without voiding knox. but for that it's bootloader should be on same version.

--------------------------------------------------------------------------------------------------

-----
[Samsung Galaxy S22 Ultra] digheaditya67:
I tried the above on my Galaxy Note 20 Ultra 5G, US - Snapdragon based Verizon - unlocked model, , flashed with an U1 firmware, changed csc using samFW to XAA...... bootloader version 2 , and running Android 12 with ONE ui 4.1... but I need the n78 band, because I am in a different country.....

Because the S22 is able to unlock an unsupported band in US, even the note 20 should be able to as ...

as far as I know the X55 modem supports all those bands and even iphone 12 used the x55 modem.

I tried all the above steps, it even shows all the list of these bands when select all bands is done , like N78-NSA-SA, but it doesn't save.

.

If anyone is using note20 ultra/s20 ultra , have used other tools like QPST please do let me know.

Thanks
[Samsung Galaxy S22 Ultra] jazz5000:
Can anyone help me with this.

Have a SM-S908U1 model on XAA

When running the SamFW tool on the waiting for diag screen i enter *#08# but nothing prompts on the phone to change usb settings

Edit: Tried multiple times to enter *#08# and it suddenly worked!
[Samsung Galaxy S22 Ultra] digheaditya67:
It's *#0808# instead of *#08#

The other one was *#73#, which you will use later
[Samsung Galaxy S22 Ultra] michalha:
Hi,

I'm trying to check NRDC on SM-S901U1 but there is no option:

Service Mode Main Menu -> UE SETTING & INFO -> SETTING -> PROTOCOL -> NR5G -> Next Page -> NR5G NRDC -> NRDC ENABLE

Is NRDC available on Ultra only?
[Samsung Galaxy S22 Ultra] dyeager:
(y)Great write-up. I have used this successfully on a S21U SM-G998U1 with security patch level May 1, 2022. The changes it makes are not fully seen by the Samsung Band Selector App but is is no longer needed for Verizon and AT&T. After each pSim change, method 2 was required to be repeated. Uncertain about eSim to Psim change.

In setting up, I had to use the *#0808# trick a couple of times. Disable diag did not show as occurring fully. Had to use method 1 + method 2.

Afterwords with all bands enabled, my local site T-Mobile site automatically selected n25 SA when n41 SA was too weak. Tried VoNR but my T-Mobile market is not enabled yet. Found that an unused LTE band was required to select only one 5G SA band.

I would be curious if this still works on the latest S21U firmware.
[Samsung Galaxy S22 Ultra] rayw_xda:
Forcing protocol simulation to GCF + doing steps in part 1 will now also unlock 3-CA 5G NR on T-Mobile.

Only worked on Flip4 and presumably it should on S22. The S21 does not support 3-CA unfortunately (at least yet). Couldn't get it working on Fold4 either.

EDIT: I managed to get it working on my Fold4 finally. I had to re-enable cidmanager and then re-apply the OneUI5 update via ODIN and then re-doing the steps. Also noticed only one SIM can be active at a time for 3 CA to work. If both a physical and eSIM are enabled 3 CA doesn't kick in.
[Samsung Galaxy S22 Ultra] throwaway019299292:
Nice tutorial! Made my Note 20 Ultra 5G SM-N986U1 (originally N986U) do CA and 5G here in the Philippines. Previously, 5G only worked on TMO's N986U firmware, and wasn't working at all on any CSC on unlocked firmware and CA came up as not configured on the *#0011# menu but now it all works! I'm currently using XAA.

ADDENDUM (2/10/2023): Using XAA or GCF as the CSC on Method 2 will not work as it disables the menu to change the DSS setting.
[Samsung Galaxy S22 Ultra] irshansk:
Is there any way to enable native Visual voicemail regardless of CSC?
[Samsung Galaxy S22 Ultra] Littlenine:
i have a new way and it works on oneui 5.0.
[Samsung Galaxy S22 Ultra] Abish:
For what ?
[Samsung Galaxy S22 Ultra] peacey8:
The way described in this thread also works on One UI 5.0. If you have another way different than the OP, please share it so we can all learn this new way as well.
[Samsung Galaxy S22 Ultra] Abaddon:
share it please
[Samsung Galaxy S22 Ultra] Littlenine:
i will do this but i need to study english first:( to write it in english
[Samsung Galaxy S22 Ultra] Abaddon:
Google translate :)
[Samsung Galaxy S22 Ultra] Littlenine:
it's rubbish for chinese
[Samsung Galaxy S22 Ultra] phormskaran:
Then write it in chinese we’ll translate ourselves we are to excited hehe
[Samsung Galaxy S22 Ultra] Littlenine:
i have already done it and i can translate it by my self thanks:)
[Samsung Galaxy S22 Ultra] Romeo Nickolas:
Hello fellow filipino.

We have the same phone and AFAIK the 5G you're seeing isn't really connected to 5G.

Can you download Netmonster app and check if you're really on 5G. Thank you!

I've done many things just to unlock the 5G of this phone but not luck.
[Samsung Galaxy S22 Ultra] phormskaran:
Hello Together

Happy New Year!

I have a issue since few Days that my S908U1 is only Getting 5G or 4G no 4G+.

4G is to slow and 5G is not everywhere

Set LTE BAND CONFIG i have already done again AND DISABLE CA COMBO CHECK is on DISABLE ON on both Stacks.

Band Selection shows LTE and NR5G NSA Bands are active on both Stacks

Maybe someone has a Solution for that Problem

Cheers!
[Samsung Galaxy S22 Ultra] Romeo Nickolas:
When will you post this?
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
And for those asking about VM app....i full accessibility to use it at my disposal...watch and learn
[Samsung Galaxy S22 Ultra] gdaddy3315:
This is all great stuff, and I'm fixing to try it myself.

I have a s22ultra 908u

And I'm having severe network issues. As well as probably a million other people.

Well I figured out it's the dsds that's causing it.

And I can temporarily disable it thru shortcut. But I need help with ideas to permantly disable this function.

But I know that it's the e-sim causing the problem. And the system jumps back and forth on its own. I can't permantly disable it. Even thru and shortcut menu
[Samsung Galaxy S22 Ultra] Abaddon:
Does method 2 work even after a factory reset? or even an update? or if there are csc changes from an update will it revert?
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
Everytime you reboot the device...do an update, you have to follow the steps again to get System Shell. Also...with the ability to enable the PRECONFIG menu...everything you set in there stays set.
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
can you uninstall it?
[Samsung Galaxy S22 Ultra] gdaddy3315:
So I actually figured out it the sim tool manager turning airplane mode on. But it doesn't show anywhere. I has to see it in background processes. I enabled all bands, but it does no good when sim tool is blocking service. No reason why, and it just stops doing g it for no reason also. So far, worst phone ever. Samsung is sending a new one. But this is ridiculous
[Samsung Galaxy S22 Ultra] lancehardwood1313:
Has anyone tried using the international version of the Fold 4 on T-Mobile USA and gotten 5G?
[Samsung Galaxy S22 Ultra] phormskaran:
Hi

So i did some research and got to know that Google Carrier Services is causing that problem so i downloaded LADB App ,Turned Wifi Debugging on ,debloatet my Device and Deleted Google Carrier Services and really it worked out I’m having only 4G+ instead of all the time slow 4G and the 5G is even working much better with faster Speeds

Maybe that Helps

Greetings from Germany !
[Samsung Galaxy S22 Ultra] jesbu:
Please which the app and the command did you use

Thanks
[Samsung Galaxy S22 Ultra] rayw_xda:
You might be able to with this https://xdaforums.com/posts/88056657/
[Samsung Galaxy S22 Ultra] phormskaran:
Hi i used the LADB App and Wifi Debugging there are great Videos on Youtube for removing bloatwares check these out
[Samsung Galaxy S22 Ultra] evangelionpunk:
Do we know if the international dual sim variant has the same USA hardware based on s22/21/20?

Does it have mmwave baked in but just disabled by software?
[Samsung Galaxy S22 Ultra] omaralwardian:
Hi,

I am in Canada. Why is my Service Menu so weak? ☹️
[Samsung Galaxy S22 Ultra] ydagana:
Worked for me on my SM-S908U1, bands look just like the screenshot for me, except for CDMA: w HDR (on my phone it says CDMA: w/o HDR) and I have very bad network and very slow internet on 3G and 4G/LTE.

Any idea what could be the solution? and does anyone know how I can reset bands to default again?

Thank you in advance.
[Samsung Galaxy S22 Ultra] throwaway019299292:
On the Note 20 Ultra 5G (U1), using XAA or GCF on method 2 to change the simulated CSC disables the menu to change DSS settings. It shows a message saying around the lines of DSS menu not supported. Changing it back to TMB allows me to access the menu. Does anyone on S21 series or newer encounter this?
[Samsung Galaxy S22 Ultra] Mohitk21:
This is awesome, Worked for Samsung fold 4 , Us version in Dubai middle east, The only probelm is its giving 5g Speed but phone shows LTE. I am sure it worked as normal LTE band was giving me 20 MBPS speed here and after the steps, its not 500mbps+, i am not sure if it worked as designed but it did work for what was required. Increase net speed. . If there is anything to be done to flash 5g/4g symbols , please let me know
[Samsung Galaxy S22 Ultra] evangelionpunk:
Does this work on the S23ultra?
[Samsung Galaxy S22 Ultra] jcsww:
To get into the service menu on the S23 Ultra, it's *#2263# from the Samsung dialer. I personally haven't tried messing with it yet but had asked if anyone else had in the S23 Ultra forum.

https://xdaforums.com/t/band-selection-service-menu.4553079/
[Samsung Galaxy S22 Ultra] peacey8:
I have tested it on Canadian W firmware and it is not working. I am waiting for U1 firmware to flash it and see if it works with U1 firmware (I still have hope, but I'm ready for it to be shot down).

This is not the same thing. Band selection screen (*#2263#) does not come with all bands unlocked. You can only select the bands the phone already has in your country/CSC. This guide is to unlock all bands in that band selection screen, which requires using the full service menu. Just being able to access the *#2263# menu is not enough. We need to be able to access the hidden service menu.

Anyways, we will see what happens when U1 firmware is finally posted for S23U.
[Samsung Galaxy S22 Ultra] asda171:
anyone with a US s22U able to download a copy of 00029652 from /nv/item_files/rfnv/ please?

Accidentally removed the mmwave modem.
[Samsung Galaxy S22 Ultra] otteporihs:
@peacey8 I can confirm this is working for Flip4 SM-F721U1 if you want to update OP.
[Samsung Galaxy S22 Ultra] thao1vd:
Hi All, i got 5G speed and i dont have 5G logo on my Signal Bar

s22 Ultra TMB - XAA rom

My carrier Viettel Việt Nam! Band 5G n77
[Samsung Galaxy S22 Ultra] samteeee:
@peacey8

Thanks a lot, great work.

Just wanted to say that I went through the process and all worked the very

first try but the "Sub-6 & mmWave! I tried 2 times to no avail.

During the procedure, it says they both are enabled but it doesn't survive

the re start!

Thanks again.

My Device details: SM-S908W on Freedom Mobile in Canada
[Samsung Galaxy S22 Ultra] peacey8:
How do you access that folder? I can't see it in my root directory on the S22U1. And is this folder even writable for non-root?
[Samsung Galaxy S22 Ultra] peacey8:
You are definitely connected to 5G. It could be that TMB CSC does not enable 5G logo for that 5G band. You can try to change your CSC to XAA or ATT with SamFW FRP Tool.
[Samsung Galaxy S22 Ultra] ElCapitan0:
Hi all. Could I accidentally disable roaming through the settings in the service menu? I followed the guide and I was wondering what is in the other menus...

And now foreign SIM/ESIM cards cannot connect to the network in roaming (Cross icon), local SIMs work well. In manual network selection mode, I also get the error.
[Samsung Galaxy S22 Ultra] peacey8:
I don't think you can disable roaming, I haven't seen any option for that. But I did not play with every option. The options from the tutorial shouldn't disable roaming.

You can try to reset all the settings by going to Service Mode Main Menu -> HW Test -> NV Rebuild All. Also, you might to try to Reset Network settings from the Settings (not service menu).
[Samsung Galaxy S22 Ultra] peacey8:
Good news everyone! This method still works on US/Canadian S23 series and One UI 5.1. I've copied this guide over to the S23 forum.

Just tested it with my Canadian S23 Ultra by flashing US firmware first. The service menu will only unlock on US firmware (though stays unlocked after re-flashing Canadian firmware).
[Samsung Galaxy S22 Ultra] zyasin:
Thanks for this great post to unlock 5G and 4+/LTE+ bands on Canadian S22 Ultra version.

S22 Ultra: Will I get OTA update of oneui5.1 on XAA version or will I have to flash full firmware (factory reset) when XAA version will be released officially?
[Samsung Galaxy S22 Ultra] peacey8:
If you are on XAA CSC, then you will receive OTA updates from XAA and will get 5.1 when the OTA is released for XAA.

Btw, you can also re-flash Canadian firmware after unlocking the service menu on US firmware, then you can unlock all bands and keep getting Canadian OTA updates. Up to you whether you wish to stay on US firmware or go back to Canadian.
[Samsung Galaxy S22 Ultra] zyasin:
I got Canadian version and LTE+/4g+ /5g were not working in Kuwait so I flashed XAA USA version and everything is working fine. but my concern is that if i will get OTA updates from XAA or not because I have read some posts on XDA that if you change CSC to different region, you will not get OTA updates....

I am still waiting for oneui 5.1 update from Samsung for XAA version which is not released yet to see if OTA update works or not.

I am happy with US XAA version and I don't want to go back to Canadian version because latest Canadian version is still on December 2022 patch.
[Samsung Galaxy S22 Ultra] peacey8:
Yes, you will get OTA from XAA since you are on XAA CSC.
[Samsung Galaxy S22 Ultra] zyasin:
I just got OTA 5.1 update on XAA. Thanks for your reply
[Samsung Galaxy S22 Ultra] galib:
Hi All,

I have Samsung galaxy z fold 4 US version running Android 13. Its worked for me as I need to use the 5g network outside USA. Thank you @peacey8 , @Abaddon
[Samsung Galaxy S22 Ultra] bh_buoyy!:
Anyone using the S22 Ultra XAA in India and is unable to use 5G on JIO sim? I tried this method but Jio still says "You are on a non-5G device" Does anyone know of any solution ? Thanks!
[Samsung Galaxy S22 Ultra] ken2028:
Hi, New to this

Is it possible to flash convert Global unlocked SM-S918BZGUTPA to S918U American 5g bands since they made it south america

region version incompatible so the internet function dont work and the 5g band selection to enable is gone.

Can anything be done to make this regional Samsung modded phone to work at least on T-mobile/MetroPCS 5g network ?

I know its ATT that cause this crying to samsung to make the same model only work in south America region including the Caribbean areas .

Force flash?

Modded Flash?

Something?
[Samsung Galaxy S22 Ultra] santoosh:
Activate it on an Indian invoice 5g phone. Wait for 24-36 hrs after u click on the welcome offer banner.
[Samsung Galaxy S22 Ultra] nnighthawk:
Hardware-wise it should be partially compatible with T-Mobile's 5G, and the device should at least be functional on T-Mobile (you might have coverage issues.) It's worth a shot as T-Mobile is known to not aggressively blacklist devices like AT&T.
[Samsung Galaxy S22 Ultra] jcsww:
T-Mobile now requires any BYOD to be compatible with T-Mobile's implementation of VoLTE for the device to work on their network.
[Samsung Galaxy S22 Ultra] formula666:
Ok I will give it a try... Thanks
[Samsung Galaxy S22 Ultra] peacey8:
If you're on a US or TMB CSC and using those carriers, your CSC is already optimized for them. Enabling more bands won't do anything for you since your carrier doesn't use them anyways.

This is more for people who have a U1 outside the US and want to unlock bands that are used in their own countries, since the handset is locked to US bands on the XAA CSC.
[Samsung Galaxy S22 Ultra] formula666:
Thanks dave it worked..
[Samsung Galaxy S22 Ultra] bigdave79:
I'm on US Mobile which is an MVNO that runs on the T-Mobile network. Might be coincidence but now I get LTE+ and 5G signals at home which I did not before. Previously would only have LTE. But again that could be coincidental. Regardless, this feature will hopefully make the phone more useable when traveling.
[Samsung Galaxy S22 Ultra] wr3cckl3ss1:
What's your CSC?

As well as yours.....CSC