yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] intheb0x:
I would benefit from n25 for sure for fireproofing. It's a future T-Mobile band. Along with n77 but I doubt there's anyway possible I'll be able to enable that.but if we had the s21 or newer it would be enabled

As for downgrading,I'm stuck because I'm on 3 as it is. But maybe as time goes by someone will come out with a way to downgrade safely,etc maybe even bootloader unlock etc but whatever.

Honestly I'm curious about something else too. Now on the newest update if I hit "unlock all bands" in the service menu then none of the other bands show up like they used too. Even tho they didn't stick, n1 n2,etc all those would show up even tho they weren't going to stick..now with the newest update no extra bands show up only the ones unlocked normally n2,n5,n66,n41,n71.

What I am curious about though, is when you would enable all bands and you would apply the update you would see the hex codes at the bottom showing what they would be if all the bands were selected but once you hit apply or leave the page you know it would go back to the normal 5G bands that are there.

The extras would disappear and the hex values would change to the stock values in the device I got the values for this, and when you go back to the main screen you'll see the hex values stayed the same from the normal bands that you always have but I copied down all the hex values from when you enable all bands and I'm wondering if there would be some way to write those hex values in a NV editor and do it that way to enable bands or if they would get overwrote on boot or something probably that's what would happen.

But it's something for me to test.

My main goal is honestly a phone with mm wave and c band available what I call Best of both worlds right now I got a phone with mm wave and everything else but I don't have anything available with c-band but one device but it's currently broken right now and it doesn't have mm wave on it and in my area Verizon has a lot of mm wave downtown which I would like to utilize and supposedly they have a lot of sea band in this area too but I'm not able to test.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] intheb0x:
I'm also trying to update to the 13:beta as we speak but I'm having trouble finding the file for the s20 ultra
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] JeffATL:
I am still using a carrier unbranded / unlocked N20U. Before dual sim was available across carriers, it was only available on TMO, so using hacked Odin, I flashed the TMO rom and got dual sim to work. I never flashed back. So if using Verizon/Visible sim with TMO rom, does this mean some of my bands are disabled that I need, or it should not affect anything? (having trouble following this thread and getting access to service menu)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] digheaditya67:
Did it enable n78 on S20+ ?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] h2olove:
Replace name it woking

am start -n com.sec.hiddenmenu/.NR_View -e 7267864872 72678647376477466

Eg: NR_View replace to TTY
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] digheaditya67:
Hii @h2olove, could you add more information or steps, about how it can be done ? What bands work after doing this ?

is it to be done using adb commands ?

Thanks
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] yocoxy:
I've tried this but there aren't any options to enable DSS
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] digheaditya67:
@Romeo Nickolas , I am not sure, but if we get antenna for Note 20 Ultra International Version, and fit that on the US model, ( the antenna board also houses microphone probably ) ....if antenna is being the limitation, we might be able to activate the C band.

Need someone to try that though, and not sure if the connectors of these antennas match.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
I'm on s22 ultra now I don't have the note 20 anymore. But sadly this one also has a problem but only on the firmware. I'm stuck on March security update just to use 5G.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jarnaljit singh:
how to unlock bands in galaxy a14 5g. i buy from thailand. jio 5g is not working. how to unlock 5g bands in oneui 5.1. tell me i have pc. if it require pc. please help me.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] BF0668:
Thank you, the Samsung Z fold5 F9460 used in China has lifted all frequency band restrictions!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] josellop:
A question, how did you achieve it? greetings
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] breeze-ac:
Hi,

I bought a used phone S22+ and someone had already turned off all the LTE radio bands on it. How can I turn them back on? I clear it with item 7, but when I select item 8, only those bends that were there when I entered the menu still appear. please, help:)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] BF0668:
Enable 5G SA if you're lucky enough to have a carrier with standalone 5G networks. This option might be enabled by default already.

Service Mode Main Menu -> UE SETTING & INFO -> SETTING -> PROTOCOL -> NR5G -> NR5G SA/NSA Mode Control -> SA/NSA ENABLE.

Service Mode Main Menu -> UE SETTING & INFO -> SETTING -> PROTOCOL -> NR5G -> NR5G SA/NSA Mode Control -> Remove SA permit list.

Service Mode Main Menu -> UE SETTING & INFO -> SETTING -> PROTOCOL -> NR5G -> Next Page -> NR5G NRDC -> NRDC ENABLE. NRDC is for dual connectivity with Sub6 + mmWave bands in parallel. Only applies to 5G SA networks and only if your carrier uses it.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] BF0668:
How to Enable All Bands Through Service Menu on US/CA S22 series (including Sub-6 and mmWave)

What is this? This is a guide on how to enable all LTE and 5G bands on the US or Canadian S22 series phones by going through the service menu. This guide is mostly based on this S20U guide by mellojosh, but has been adapted for the S22U phone...

xdaforums.com
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] josellop:
Did you manage to activate using the codes? It won't let me enter it, it doesn't do anything
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] BF0668:
In the system after Samsung one UI5.1 in China, ROOT is required and ADB command is needed to enter ServiceMode. Adb command: am broadcast-a com.samsung.android.action.SECRET_CODE-d android_secret_code://27663368378-n com.sec.android.RilServiceModeApp/.SecKeyStringBroadcastReceiver
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Karol_sam87:
how I can get this screen? What code I should use?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dawitlal2:
Thank you, creator, and members of XDA. I have the S21 Ultra 998U1 initial ATT. I want to use 5G, so I enabled the service menu and tried every procedure posted in this forum. However, I still can't fix it. When I use *#0011# and *#*#4636#*#*, I get the result that I attached. Can anyone provide advice or point out any errors that I might have made? Please help, as the 4G speed is too slow here.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
Yeah, I noticed this also on the XAA CSC. Since sprint doesn't use DSS at all, the menu hasn't been enabled. The t-mobile csc does have this option, although by default it is set to disabled. Since Sprint 5g is now basically whatever is available from tmo, you might wanna try changing the csc of your phone to tmo. I have some sprint Sims I was going to test with but now you can't sign up for new service with them.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romans8vs1:
Thanks for the information. I was able to sign up with Sprint two weeks ago. I just had to go into a local store to do so.

If I change my CSC to tmobile and want to change it back, I would just follow the same steps to change it back to Sprint, correct?

Also, what is the true benefit of doing all of this? Honestly, I just wanted to play around with my phone! :silly:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
Oh really? I just tried online, maybe I will give going to a store a try!

You can definitely switch from a tmo csc to sprint. If you dial the *#272*[imei]# on the Sprint U firmware and get the CSC screen pop, you are golden.

The benefit is different for different people. For me, it got me access to Verizon 5G nationwide before it was announced or the software was pushed out. U1 unlocked devices still don't have a software update from Samsung or Verizon for nationwide 5g access. These steps enable that. And now I also have bands 2 and 66 for when Verizon starts deploying that.

For Sprint customers, changing to TMO csc might force roaming onto tmo more often, and for many people tmo is better, especially for uploads. If you are in a place with a lot of LTE band 41, sprints downloads are pretty great. Having control of your bands allows you to control your network experience.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romans8vs1:
Yeah, I tried online as well but could not sign up. Once I went into a physical store here locally, I was able to sign up with no problem at all. Where I am at, I do not get any T-Mobile service at all at the present time. I guess I will just leave things as they are. Thanks for the help!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
Here are some other options in service menu I have changed to improve performance. I have seen it not only help 5G, but LTE as well. I will update the guide soon with full instructions.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] alher591:
I am using a verizon note running unlocked firmware Oct 1st update. I followed the steps three steps and did not have luck in activating 5G. Whats steps did you take?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
Can you clarify what step you were able to achieve? Can you post your screenshot from the *#*#2263#*#* code using the Google phone dialer as well as the DSS setting screen explained in the guide?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] alher591:
Thanks for the quick response. I decided to start fresh with a factory reset and rerun through the steps with much better luck. I have 5g enabled!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
Awesome! That works too...lol. Enjoy! Also take a look at my other post (#25) it really seems to boost speeds, especially with a strong signal.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] alher591:
where can i find those settings?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
Under ue setting and info->setting->protocol->as->next page options 3,4,6 and 7 and ue setting and info->setting->system->next page (until the last page)->4x4 mimo. Also ue setting and info->setting->system->diversity control->lte diversity control
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Adam1422:
What setting should be set for the lte diversity control?

LTE DRX ONLY ENABLE()

LTE PRX, DRX ENABLE(*) - THIS IS WHAT IS SET NOW

LTE PRX ONLY ENABLE()

LTE RX2 ONLY ENABLE()

LTE RX3 ONLY ENABLE()

LTE 4RX ALL ENABLE()

What did you enable for this setting? Thanks in advance!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DublinLarry:
Is it the options that have "*" that are the ones you've selected? The screen caps didn't make it clear to me?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
LTE 4RX ALL ENABLE. This enables receiving on all antennas all the time.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mellojosh:
That's how the menu looks. There can only be one selected at a time, the one with the astrick.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romans8vs1:
I completed the first two steps (Enabled LTE and DSS). I'm now having issues with devices connecting to my Hotspot. Not sure this is what is causing the Hotspot issue, but thought I'd mention it to see if anyone has any ideas. I'm in sprint with a note 20 ultra N986U.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romans8vs1:
Did a factory reset and am back in business now. I must have messed something up!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DublinLarry:
I have an unlocked Note 20 Ultra on Spectrum. Now in the official beta. Also use NovaLauncher. I cannot get into CSC and wondering if anyone knows why? Don't think I need to change anything, just wondering why the method listed isn't working for me.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Limeybastard:
Great guide. Albeit the CSC menu change instructions no longer work.

There's a cat 10 under LTE cat control within service menu. Was wondering if anyone could get to it.

Ue settings and info >settings >protocol>As>release version control>LTE cat control > cat10
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] joemill:
Great information, thank you for the share!!

I have a question though. I have a n986U1 unlocked model that I bought directly from Samsung. I installed the Verizon U full firmware with Odin. So I have Verizon apps, the Verizon 5g singal and all the video calling features and such. My about phone shows VZW/VZW/XAA.

Would these modifications give me anything I don't already have?

Also would it affect battery life making any of these changes?

Attached is a screenshot of my enabled bands screen
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] ghallab:
Please need help, i can't change network mode now, it is set to 5g/4g/3g/2g and i want to change it to 2g only and when i select it nothing happens.

I appreciate any help, thanks.

---------- Post added at 12:35 PM ---------- Previous post was at 12:22 PM ----------

Never mind i solved it.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] adj998:
I followed all the steps in the guide, including some the additional help in the thread, but I cannot get 5G on my phone. I had it maybe once or twice but I can't get it back, I'm stuck on basic LTE not LTE+ and my speeds are horrible. When I go back to Android 10 I get 5G as soon as the device boots up. Any thoughts? I'm on Spectrum and my CSC is CHA/CHA/CHA

Update:

Anybody?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Nursenate82:
Hello All,

Looking to change CSC to a CSC that allows Call Recording like THL. IS this one available on the menu? I have a SM-N986U1 Unlocked from Samsung. Thanks

-Nate
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tdodd:
Hi, mellojosh. Great thread. Unfortunately the screen grabs you had in post #25 all disappeared during the forum migration. If there is any way that you can replace them that would be epic. Thanks. 👍
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Palanik:
In service mode I don't have any option of NR5G Prune... Why?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tdodd:
I can't explain the reasons, but compared to my N9860 TGY you have a lot of options missing.

Also, on a separate note, the most recent OTA update in December appears to have reset at least some of the changes I made using information in this thread. I first noticed when my 4G+ signal seemed to go missing yesterday. I reapplied the changes and 4G+ came back.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dl8806:
This was so helpful! Thank you! Followed all the steps without issue :)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mindseye0803:
Does Single in CSC name ex.. VZW/Single, mean single sim?

This is csc listing of my unlocked Tmobile N20U5G.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mffu:
After the official 3.0 update for U1, the Google Dialer no longer opens shortcuts for these menus. The screen flickers, but no service menu gets displayed/opened. Does anyone know of any workarounds?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DublinLarry:
Same here. Really liked having access to that info and the ability to change settings as well. Anyone know if there are new codes for the Note 20 Ultra now that it's production version of Android 11?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mindseye0803:
*#*#27663368378#*#* still works for me on TMO N20U (unlocked) after Android 11 update

but *#272*IMEI# doesn't bring up CSC menu which was available before Android 11 update.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] toskabab:
Same issue here on u1 Android 11. Any knowledge of a workaround would be really helpful.

Edit: I also can't get Odin to flash anything after upgrading to Android 11. Is anyone else having the same issue?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] peter_betos:
Have we tried a wipe to see if the dialer will behave the same?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Chekz:
So *#*#4636#*#* works for me. I was able to turn off 5g finally .
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] peter_betos:
That's like a preference setting though. The ones from service mode is different since you really activate / deactivate the antenna bands.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] toskabab:
I tried the code and it works, but I'm not able to change anything.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] toskabab:
Haven't tried a wipe. Not a fan of starting all over again.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] pafc66:
Doesn't work for sm-n9860 here in australia. 5g never works
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] peter_betos:
Told ya it's just a preference. Forcing NR only (i.e. 5G) won't show any signal because the bands are not on.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mindseye0803:
Following code works to bring up CSC menu.

Dialed *#*#27262826#*#* on my unlocked Tmobile using google phone app
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] goinovr:
Thanks for this! I have a Verizon Note 20 Ultra 5g that I am swapping to AT&T. I have been trying tons of different codes to get the csc change to work and this one did it. (y)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] androidloveRs3104:
what is the code for one ui 3.0 any idea? these are not working. my model is sm-n986u1
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] william0910:
I have recently purchased the Note 20 Ultra 5G in the UK. But I got sent a South Korean variant. I have looked around and I don't seem to find anyways to get Samsung Pay working here in the UK. It kept asking for a Korean sim card. Also, it would be nice to get rid of the preloaded South Korean apps.

Model: SM-N986N

Android 11

Security Patch Level: 1 Dec 2020

Baseband version: N986NKSU1BTKK

PDA/AP Version: N986NKSU1BTL6

CSC Version: N986NOKR1BTL6

MODEM/CP Version: N986NKSU1BTKK

Region: KTC — South Korea

I would like to switch from KTC to KOO if that's possible

I have read about the *#272 method and tried it. Also the IMEI method. Both the default Samsung dialer app and Google Phone did not bring up the menus.

I have also read about downgrading the phone to July security patch. But this phone launched with August security patch. Even though the rom download on Sammobile said the rom is from July, it still contained the August Security patch, which meant it won't work with other methods.

I really want to use Samsung pay, thus I don't want to trip KNOX and root. Do you guys have any recommendations that I can try?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mindseye0803:
Check out - https://xdaforums.com/t/change-csc-korean-note-20-ultra.4167007/
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] thinpaduser:
*#*#27663368378#*#* works in Android R or Android 11 as *#27663368378#. But only for XAA through default Samsung dialer and *#2263# still working on android 11 TMO. Please update.

-Manoj Dadi
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] androidloveRs3104:
*#27663368378# didn't work for me in my XAA but *#2263# did bring service mode but it was different. Have any idea how to do it with this service mode.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] thinpaduser:
Did you try using the stock dialer? I have XAA and it works. I also changed my n986u1 to n986u CTLA version for firmware. The menu that *#2263# allows you to change and choose bands.

EDIT- CSC in Odin has to be TMB or another csc. Doesnt work on XAA.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] androidloveRs3104:
Yes with stock dialer. With Google dialer nothing works. How did you change. Csc change option code doesn't work after I update to android 11. My model is n986u1 and csc XAA
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] thinpaduser:
I edited my post, it seems this menu does not work on XAA. Flash a 986U CSC in Odin.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] androidloveRs3104:
does it enables esim?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] thinpaduser:
The esim application should be enabled and is technically always running in the background unless you run root and get rid of the esim applications. If you take your phone to the carrier, they should be able to attach your esim with their services.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] xQuantum:
Is it possible to add new LTE CA using this menu?

I want to enable B1+B3+B28 on TGY S20 5G, when I go to

(1) Protocol state

(2) As information

(4) LTE Prune CA Combos

This will show all the supported combos, can I add a new LTE CA Combos? Or edit a certain line?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jeremyvbk:
Got the S21 Ultra and the code no longer works with either stock or Google stock dialer. Nor does it work with the above mentioned shorter code
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gkarkala:
After Android 11 oneui 3, even US unlocked note 20 ultra with XAA CSC does not allow you to dial those codes. Surprisingly this worked on one ui3 beta 2.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jeremyvbk:
It was working on my note 20 ultra during the beta, and on the ATT csc as of its latest update. Wonder if there is another way it. Something similar to the Samsung band selection app bypassing the *#2263# menu RAT restriction. Would be nice to see what settings are available to tinker with
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Chekz:
Anybody figured anything out. This Verizon 5g is getting pretty annoying.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] adj998:
On spectrum mobile *#*#4636#*#* brings up the service menu to at least change which signal you want (NR/LTE) etc. But as far as changing all the protocol states, I haven't found anything. (Also I used Google dialer)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jeremyvbk:
If you want to disable 5g dial *#2263# then just disable all 5G bands. You maybe required to take the sim card out, restart the phone before the menu is enabled for some carriers as they lock some codes down
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] adj998:
I just literally posted the dialer code for verizon/spectrum......*#*#4463#*#*#* not 2263.....
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] a43:
Hey guys, I've just activated aggregation and missing LTE bands on Android 11 for Chinese firmware SM-N9860 (Snapdragon) using QSPT & QXDM tools for Windows. No root needed. Instruction looks big but nothing hard. The only issue it is in Russian for now. If you want to try probably have to use Google Translate. Check my post on 4PDA. I don't know if it will work for your device version or not. Please let me know.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jeremyvbk:
I've used thr 2263 code before on my GF Verizon s series phones with out issues.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Chekz:
Not working at all. *#*#4463#*#* flashes the screen and that's all it does. Tried it on google dialer and samsung. On unlocked 20 ultra ui 3.0
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jirka607:
Which firmware are you on like CSC?