yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Here it is.

Windows PC required.

Preparation

1. Install samsung usb driver from here.

2. Install Qualcomm QPST tool from here.

3. On your phone's stock dialer, dial *#0808#, select RNDIS + DM + MODEM (+ ADB) and click OK. This enables your phone's diagnostic mode needed to access phone's EFS files.

4. Connect your phone to the USB port of your pc.

5. Open QPST Configuration installed on your PC. Go to Active Phone tab and check if your phone already appears. If not yet, do the ff:

- Go to Ports tab and Click on the Add new Port button at the bottom.

- You can see the list of ports. Select the one that says SAMSUNG Mobile USB Serial Port. If more than one appears, you can add them both. But It's usually the COM5 port.

- Once you select this you can see the Active Phone tab the connected phone. There should be non-zero ESN value on the correct port.

6. Go to Start Clients menu and click EFS Explorer. Select the correct port and click Ok. Wait for EFS Explorer to finish loading.

7. Once loaded, ensure that Exclusive Access is checked under Phone menu.

Removing 4G Carrier Aggregation (CA) pruning/limitation to improve 4G+detection

- In EFS Explorer, navigate to nv/ item_files/modem/lte/rrc/cap and delete prune_ca_combos and prune_ca_combos_Subscription01 files.

Info: These 2 files limits the 4G CA that our device can do. The 2nd file is for SIM2. Some of our telcos 4G CA combinations are not included in these files. Deleting them removes the limitation.

Other stuff you can do:

Remove 5G CA pruning/limitation

- In EFS Explorer, navigate to /nv/item_files/modem/nr5g/RRC/ and delete cap_prune and cap_prune_Subscription01 files.

Enabling VoNR guide here

(but I am not sure if our telco here already implemented VoNR. This is similar to VoLTE but for 5G)

Some guides and tweaks using QPST for qualcomm modems can be found in https://band.radio/

Hope we can find out how to remove GCF NR whiltelist soon.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] cyberlion17:
This error comes up when I do step 6. Is there a way to fix this?

EDIT: If i press no it says

"This target indicates that it does not support file subsystem 19" and

"This target indicates that it does not support file subsystem 62" and

"This phone probably does not support this file subsystem. If no files are displayed, this is likely the reason"

Then EFS does not display any file.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Can you show the port that you added and selected?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] cyberlion17:
Nevermind! It seems like the USB samsung drivers i had was outdated. Installing them over from your link worked! You're a genius man! I have 4G+ now using globe as my primary sim! :D

EDIT: Better speeds as well!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Great!

I forgot to mention: set your USBSettings back to MTP so your phone's USB connection works normal again..
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gr_nik81:
new code Service Mode (Android 12 ONEUI 4.0) works dialer Samsung *#2683662# but is locked from Samsung.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
5G working on mine with oneui4.0. 5G is new on my location, just saw this now. And I am a bit surprise that I have it on my device. Although I changed some EFS files on my device using QPST few days ago￼I'll share soon.￼
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] iman_mohammadi:
Unfortunately yes , bands can be enabled by QPST but using NR for some carrier needs to remove NR whiltelist in GCF which still there is no way in Android 12.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gr_nik81:
Any news to remove NR whiltelist in GCF with QPST tool for android 12??
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Culex316:
Sir, you are the REAL MVP!

Thank you very much for this guide! I have an S20+ originally from the U.S. but I am using it in Panama and even though it is unlocked, since it has the CSC from a U.S. carrier, it does not enable all of the hardware's CA combos (which includes a CA combo that is very useful for me here), so with this method I can enable that combo again once I get the Android 12 update, which I know will block me from accessing the GCF menu thank you!

Edit: I finally received the OTA update for Android 12 and just as I suspected, it reset my modem CA configuration to the default and I used your QPST method to delete the prune file and that did the trick and restored my hardware CA combos ! Thanks once again!

I think this needs to be done every time the baseband is flashed.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jemfalor:
/nv/item_files/modem/data/3gpp/lteps/disable_apn_matching

/nv/item_files/modem/nr5g/L2/mac/mac_cfg_validate_ctrl

/nv/item_files/modem/nr5g/L2/mac/mac_cfg_validate_ctrl_Subscription0

could the above be related to GCF? APN whitelisting??

nope, tested
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Try to backup files under L2. And delete the entire L2 directory. There's no L2 directory on mine and 5G is working
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Culex316:
What does deleting the entire L2 directory do?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jemfalor:
I'll test gcf on my other phone and check difference in esf. later. app has issues quoting, so not quoting
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gr_nik81:
If delete L2 directory with QPST tool

Removed NR Whitelisting in GCF?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
L2 are config files for layer 2 of 5G protocol stack. The other directories are a ML1 (for layer 1) and RRC (for layer 3, which contains the CA control files for 5G. ). Think of them as rules implemented by samsung. Other files that I changed using QPST are the ff for those interested (use Copy data file from PC):

IMPORTANT: Always backup the original files that you will be replacing or deleting.

carrier_policy.xml and carrier_policy.xml_Subscription01 : added 5G Stand Alone bands for PH telcos. SA bands are disabled by default even if NSA/SA is selected in dev menu.

policies.xml : updated so that changes on the above files will not reset on sim change.

lte_feature_restrictions.xml : added PH telcos to the Dynamic Spectrum Share (DSS) network list

also deleted policyman/persistent_items to refresh the contents

edit: also deleted cap_prune and cap_prune_Subscription0 files inside nv/item_files/modem/nr5G/RRC (layer 3). This removes defined limitation on 5G CA.

Don't know which worked, just sharing.

You can check the enabled bands on your phone using this app
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jemfalor:
i have a samsung s20 fe 5g, in it, there's no L2 nor ML1.

mind sharing your carrier_policy.xml file
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jemfalor:
tried everything so far,

deleted L2, ML2. modified carrier policy and policies.

seems like there are still 5g bands restriction in placed. 5g bands still missing in band selection menu.

configuration or gcf should be somewhere in the nv modem section
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Included in the attached zip in the post.

What bands do you have currently?

Actually 5G bands 1, 3, 28, 41, 78 and 79 on my note 20 Utra hongkong variant. Prior, there's no 3 and 28.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jemfalor:
n41 n66 n71 n260 n261
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Seems to me that you have a different variant, not TGY/BRI/CHC one.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Jawallory:
Same exactly what I have

Still not able to activate other NR bands in my variant XAA (US unlocked).
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Culex316:
Are you on Android 12? Have you tried inserting the SIM card of another carrier to see if it will unlock it?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Jawallory:
I am in Android 12, I have 2 different carriers sims (one sim+one esim), both are not activated for NR other bands, but I haven't tried to insert a different sim.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Just a reminder: this thread is intended for Philippine network users . While everyone is welcome to check this thread, pls avoid posting anything unrelated to Philippine network to avoid confusions.

Thank you.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] shadowlight57:
Hi confirmed 5G is working with the steps you provided. Just updated to android 12. Also network mode selection is working already.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Great!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mjohnson4580:
Does this have any effect for Verizon in the united states?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] danisonco:
I'm using G998U1 (S21 Ultra US unlocked), I only have n41 n66 n71 n260 n261.

How can I activate n78 which globe uses?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Send me a dm.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] danisonco:
DM sent.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Jawallory:
I have also the same issue, I am not able to activate N78 band & i am on Android 12

Can you help
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jemfalor:
remove gcf whitelisting to enable n78 in u1 models. currently no solution via qpst in oneui4
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] shadowlight57:
Will you guys get the new s22 ultra? Confirmed ph units will come with SD 8 gen 1 (made by samsung not like SD 865 and SD 865 plus which is made by tsmc.)

Surprisingly my note 20 ultra SD 865+ held up better than my exynos note 10 plus.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gr_nik81:
Snapdragon 888 manufacturing 5 nm (5LPE) Samsung process not tsmc.

Please @tribalfs send EFS file manager path files first post: (carrier_policy.xml,lte_feature_restrictions.xml,policies.xml,mcfg_sel_db.xml).
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] shadowlight57:
Oh, sorry for the misinformation. There are rumors of sd8 gen 1+ produced my tsmc
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gr_nik81:
After update latest firmware N9860 (TGY) (N9860ZSU3EVB1) Android 12 the bands NR B3, NR B28 (5GNR) is hide not enabled. Ιs there any way to activate it in QPST Tool with EFS?

I had old manual activation with ServiceMode Menu (Android 11) Unhide/Enable 5GNR bands 3 and 28 (final step Set Default LTE Band).
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Yes, check the previous posts or the opening post
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
Who misses the 5G qs toggle we had in android 11?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] cyberlion17:
Me. Haha. Kinda hard to dig always in the settings to change 5g
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] gr_nik81:
5G working in carrier Greece following the steps QPST tool first post UI 4.0 but NR band 3, 28 not enabled, is hide. Qualcomm x55 modem in N9860 supported this bands but there is a software limitation of Samsung.

On Android 11 you could activate NR B3 and NR B28 them from the Service Menu. On Android 12 no code access in Service Menu.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
You can send me your modified files if you want.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] teketake:
I also have n3 and n28 of 5G band disabled on SM-N9860(TGY).

Those 5G bands have been disabled since upgrading to UI 4.0.

(They were also disabled in android 11, which I enabled with the help of the tutorial in this thread)

I processed the configuration file with the QPST tool, but it only enabled the 4G CA.

Is everyone in the thread successfully enabling n3 and n28 with the QPST Tool without problems?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] teketake:
I have changed the CSC of SM-N9860 from "TGY" to "BRI" in order to activate n3 and n28 on SM-N9860 (TGY).

As a result, n28 has been successfully activated.

However, n3 did not activate and I lost n41 and n79.

I have tried the method by QPST TOOL as shown by a volunteer.

Unfortunately, the result was no different.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] poomsirawit:
Is there anyway to get those files back? (prune_ca_combos and prune_ca_combos_Subscription01 in LTE and cap_prune and cap_prune_Subscription01 in nr5g) Since I deleted them my phone signal turns very unstable, ps. I forgot to backup those files before deleted. Please help, Thank you.

my phone is Samsung Note 20 5g (SM-N981U1)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] iman_mohammadi:
by next update ro reset factory, they will back.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] poomsirawit:
Just found the way, I randomly navigated to UE setting&info > Setting > System > NV Rebuild > ALL mode then all the deleted files came back, 4g+ is gone, thanks anyway!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mapl.ph:
I'm on the same boat. I have a SM-G998U unlocked AT&T unit. Hoping you can help me unlock CA and 5g bands.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Jawallory:
Are you on android 12?

If yes, please share how did you get to access to UE setting & info menu

Thanks
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] poomsirawit:
I was, but I went through the internet and still couldn't find the way to access UE setting, so I downgraded to 11 that was how.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Yassop:
Hi,

Any idea why *#0808# doesnt work on my s20+ 5G KV? I want to try the above tuts.

Thanks!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Culex316:
I found an interesting file in QPST called "cap_prune_backup" (see screenshot below). It's under the "OEM" folder and seems to contain similar pruned carrier aggregation combos as the ones in the /modem/lte/rrc/cap directory.

I wonder if deleting it will ensure that the phone can never again cap the combos?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] ShotoGTR:
Hello! I'm planning to buy a S22U SD8Gen1 variant. One store site that I saw says, 5G doesn't work with my carrier (Globe). Will these steps be able to make it work?

Thank you. Regards.

Solved my problem. Thank you.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] koliberk:
Hello all,

Any updates how to remove NR Whitelisting on samsung 5G N20U ?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] danisonco:
I recently got an eSim for my Globe postpaid and for some reason I can now get a 5G signal even if I don't have n78.

G998U1 XAA, OUI 4.1
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Abaddon:
I got an SM-S908U1. Is this applicable on it too? I wanna use n78 here in PH
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tribalfs:
I think you're connected to NR41 - which I believe is the more widely used 5G band by Globe specially on NSA mode.

You can check the connected band(s) using the *#0011# code.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] danisonco:
Nice, hope they eventually add NR41 SA.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] theartialmartist:
I'm seeing mixed results when searching, can you confirm if the SM-S9110 Snapdragon has an unlockable bootloader, and if the exynos procedure works to root it?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] fsmeurinne:
Have same issue need help
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
Hello. This is my first comment here.

That's a good news for us using U1 variant. Here on our town only smart has 5G and they are using n78 only so I have no 5G signal. I hope they will add n41 soon.

BTW after the June security update the hidden menu for selecting bands like on your photo no longer available. But you can still use *#2263# to lock bands.

Thank you to the man who share how to unlocked the CA using QPST tool it works on SM-N986U1 varriant.

I also tried the trick on my old note 9 SM-N960U1 but it doesn't work because based on my research the configuration is on the 00028876 file and I can't find anything on how to edit it.

if someone know please tell me. Thank you!

Here's the proof of LTE+ connection using TNT sim.

Edit: I found the way to make my note 9 supports CA and it was succesful 🙂
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] iman_mohammadi:
Delete
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] biijan:
For me was same (Note 20 Ultra 5G) , but with new update, it gone !!!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] biijan:
Hi

It was same for me... and after UI4 , I couldn't access to Service menu to open all bands and I lost my 5G, then I moved to E-Sim and I had 5G :D ... but with the latest update (this month) I lost it again!!! not with this threat I have LTE+ now, but not 5G... if anyone find a way to get the 5G please let me know... I am living in UK with a US version of Note 20 Ultra5G
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] koliberk:
Hi, i have Hong Kong TGY version with new A12 UI4.1 in UK, with this update i lost 5G as well. No way to use service menu to activate it back 😪
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Keltonb:
I am trying to get QPST to work with my S22 Ultra (SM-S908U1) but it is saying that it there is no efs file system. I accidentally removed my mmwave bands in the *#73# menu and have not had any luck getting mmwave to work again. Any ideas?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
Try to add all the ports with SAMSUNG labels then try to open the efs with that port 1 by 1.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Keltonb:
I seem to have three Samsung COM ports. Only one of them will show an ESN, all the others just say “No Phone”. The ports without an ESN don’t seem to do anything at all with the efs explorer
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
Did you set the usb settings to rndis+dm+modem using code *#0808#?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Keltonb:
I used the rndis+dm+modem+adb setting, maybe adb messed something up
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
If it still doesn't work try different port or usb cable or different pc
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mateuszd:
This is quite an interesting thread. I'm on O2 in the UK and have the US note 20, sometimes my phone shows 5G which doesn't make sense since n78 is not supported by the U1 model. Can someone explain it?

I'd love to whitelist other bands...
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] vu tien hai:
Do you have all files in the /nv/item_files/modem/nr5g/RRC/ of N20U 9860 TGY. I want to copy them to my N986U1. Because N986U1 doesnt enable n78 band, so I dont use 5G in Vietnam. As I know, N9860 TGY Hongkong has n78 band. Thank you
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
We have the same phone model and I already researched about this and there's no way to unlock n78 on U1. The modem is hardware configured and there is no n78 on it even you put the configuration files nothing will change since it won't detect the required band.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] vu tien hai:
So sad, but i think this is software problem. Because on One UI 3.1 (Android 11) and lower, i see many people can enable this band by service mode. And on One UI 4.0 (Android 12), Samsung locked this method.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
I already tried all posible software fix including that. And there's still no n78 on 986U1 it only works on 9860 model.

Can you send me the link where you saw those people who unlocked the n78?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] vu tien hai:
Oke, thank you so much
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] fsmeurinne:
It will show that there is a 5G network available but it's not actually connected as 5G, it's only LTE+ This will show if you use an app like NetMonster.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] fsmeurinne:
It was fone using a code to get to the UE settings on Android 11 I also chrcked it. unfortunately with Android 12 this code no longer works, so no way to do it. Been searching everywhere.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] fsmeurinne:
https://xdaforums.com/t/guide-servi...and-services-5g-low-band-on-u1.4182293/unread
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
I think you saw the screenshot of band locking page (*#2263#) that shows all the bands but it is just a display bug when selecting all the bands. It is still doesn't work coz it's really hardware configured.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
My nephew has a redmi 5G phone and it shows the EARFCN of an n41 5G band so I'm shocked because I don't really need to unlock the n78 on my phone because n41 is already supported. But the problem is I still didn't get 5G signal. Maybe it is software configured on US telco only?

My friend will soon buy a samsung 5G phone with snapdragon chipset here in the Philippines so maybe I can get the required files using QPST tool. I'll update my post if I successfuly activate my 5G with n41 band.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
I downgraded my phone to android 11 again coz i hope i will get the n41 signal but the problem is not the phone it's the signal in my area.

And to confirm what I have told you that there's no way to unlock the n78 band since it's hardware configured.

Here's the screenshot what will be unlocked after accessing the UE settings.

It only unlocks n12 and n25 there's no n78.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kountry83:
I'm getting this same thing but it odd because I can view the efs for the 5g modem but not the regular modem. I installed the drivers from the link as well.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
Yes because 5G phone only use 1 modem for all. You can access all the files you need to edit or delete on the 5G modem (x55).
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kountry83:
I'm sorry I should have explained. I have a s10 5g with x50 modem. So it has separate modems.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Romeo Nickolas:
On my experience if sprint sim is inserted on my unlocked samsung I can't access the efs. So try to insert other sim especially international sim even if it is expired. So it will make the CSC XAA not SPR or any other US CSC.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kountry83:
Mine is a tmobile variant with tmobile but it has a csc WRD, which is worldwide.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] intheb0x:
You know I never had problems with my OnePlus 8 connecting to PCAT or QPS t but this stupid s20 ultra is going to get slammed against the freaking wall repeatedly.

Can someone please tell me what I'm doing wrong and every time I try to start it and qPST you keep saying that stupid error about the file system. That the phone doesn't have a embedded file system.

HELP HELP HELP

It's ridiculous and there's no guides or help me files for it no decent write-ups everything's pieced around the internet in little pieces here and there ,ITS RIDICULOUS

so so I enabled usb debugger on developer first before the 0808 stuff?

Then what I get the same error ..com5.