[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0

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Romeo Nickolas

Senior Member
Jun 16, 2022
71
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You talking about the device config file I seen that in my OnePlus 8 in the carrier policy area and you just change the true until false right and then the update doesn't happen does that really work?

I've been up for over 24 hours straight messing with this phone I can't do anymore I'll have to do it when I feel like it I'm just totally burnt out with this thing but I appreciate the help and I bet it's the sim blocking it because there's no other reason why it's not working

When you install the drivers do you just install the Samsung drivers on their own and it works or do you have to manually install them with the have disk option in the device manager like I did?
Actually I don't know if it works because I have no other sim to test it. Just try it.

I use the samsung driver installer I didn't install it manually like browsign the folder.

What sim are you using?
I think if someone with the same phone and sim read your comment they'll help you if they have successfully opened the efs.

And also try to browse other threads with the same model since this thread is for SM-N986xx
 
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intheb0x

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Dec 8, 2007
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OnePlus 8
So you were right about the sin I put in an AT&t SIM and I got it to work QP St is up and running.

Could you kindly point me in the direction of the file you were talking about that doesn't change things the carrier policy they have in there since I just put a AT&t SIM in there to get it to be accessed but I would like to have a Verizon one or something similar
 
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intheb0x

Senior Member
Dec 8, 2007
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OnePlus 8
So I don't know but it seems like this phone has issues staying connected to 5G like when I reboot the phone it connects right away to nsa's connection but the longer it's on it seems to drop the connection more and just be stuck on LTE which is just weird but none of the edits I made stayed after I swap the SIM which really sucked but I seem to be able to edit everything when the AT&t card is inserted I cannot get to the band list at all but I'm able to connect with PCAT and qpst.

It also seems like with AT&t well really boost mobile that it sticks on NSA connections longer which seems pretty cool I also picked up some mm wave tonight as well with AT&t and it's stuck for a while Verizon says that this whole downtown area is ultra-wide band but yet I only picked it up for maybe two two different times for a 2 minutes each so it's just constantly dropping the connection and I don't know what's going on with Verizon but it just seems to be a constant problem no matter what phone I use.

Anyways even though the AT&t file carrier policy and everything is pretty wide open they do disable standalone bands it seems like so I'm going to re-enable those and then I'm going to play around with some of them prune files and see what happens since it seems to stick with the AT&t and I won't be having to do a Sim swap can anyone tell me what file they were talking about that you used that made the edit stick?
 

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
So you were right about the sin I put in an AT&t SIM and I got it to work QP St is up and running.

Could you kindly point me in the direction of the file you were talking about that doesn't change things the carrier policy they have in there since I just put a AT&t SIM in there to get it to be accessed but I would like to have a Verizon one or something similar
Sorry I just read your comment you should click the reply so I am being notified. But I know you already fix your problem because you found a way to access service menu on android 12.

I'm wrong about the carrier policy file that won't need to restart after changing sim. It doesn't work I just tested it now while testing my 5G to be activated.

And I give up now I already tried everything but still my 5G is Not Restricted. Thank you that you give me hope after you discover the samfw tool.
 
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Romeo Nickolas

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Jun 16, 2022
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Hello OP @tribalfs add this on 1st page if it works on SM-N9860.

Access service mode menu on Android 12 one UI 4.1
Dial *#73# on native phone app then select BAND SELECTION, tap BACK 4X (on the 3 dots at the top right corner) to get to main menu of service mode.
Thanks to original poster

Another method using SamFW tool
Thanks to @intheb0x
Here's the link:
 
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tribalfs

Senior Member
Mar 28, 2014
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Hello OP @tribalfs add this on 1st page if it works on SM-N9860.

Access service mode menu on Android 12 one UI 4.1
Dial *#73# on native phone app then select BAND SELECTION, tap BACK 4X (on the 3 dots at the top right corner) to get to main menu of service mode.
Thanks to original poster

Another method using SamFW tool
Thanks to @intheb0x
Here's the link:
Thanks for this info, brother. Unfortunately, it does not work on SM-N9860. :(

The good thing though is that it seems that we do not anymore need to manually remove the NR whitelisting on SM-N9860.
5G now works right out-of-the-box on the latest firmware even after performing factory reset on the device .
 
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Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
Thanks for this info, brother. Unfortunately, it does not work on SM-N9860. :(

The good thing though is that it seems that we do not anymore need to manually remove the NR whitelisting on SM-N9860.
5G now works right out-of-the-box on the latest firmware even after performing factory reset on the device .
Wow congrats thanks for the info. So I think this method only works for U and U1 models of note 20.
I'm still struggling to activate my 5G I have a U1 model.
Tried everything but no luck!
The last thing I did is to add 5G ca combo manually with the right LTE anchor band which is band 3 on n41 5G band but still the 5G is not restricted using Smart sim.
I cannot test it on Globe since there's no 5G signal here.
received_3289609871308252.jpeg
 

jemfalor

Senior Member
Wow congrats thanks for the info. So I think this method only works for U and U1 models of note 20.
I'm still struggling to activate my 5G I have a U1 model.
Tried everything but no luck!
The last thing I did is to add 5G ca combo manually with the right LTE anchor band which is band 3 on n41 5G band but still the 5G is not restricted using Smart sim.
I cannot test it on Globe since there's no 5G signal here.
View attachment 5703867
try removing gcf whitelisting
 

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
try removing gcf whitelisting
Tried everything that I read on this forum.
Remove gcf whitelisting
Remove prune combos on LTE and 5G.
Enable LTE DIVERSITY CONTROL TO 4RX
Enable DSS.
Etc.

I'm suspecting that it is the settings for LTE anchor band. I think it is on one of the file on the rfnw folder just like the 0028874 file that contains LTE ca combo of LTE phones.
 

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
I confirmed that the anchor band is really the problem by getting the ue capability logs.

Deleting cap_prune file or editing it manually to support the supported combo of 5G and LTE band (anchor band) doesn't affect on what the modem is configured.

The combination is still LTE anchor band 41 on n41 5G band (Sprint US CONFIGURED) based from logs.
Smart PH uses LTE anchor band 3 on n41 5G.
20220905_130912.jpg

CSC change to non US telco isn't possible for u and u1 model.

00028874 file on rfnv folder contains the ca combo of LTE phones.
Maybe one of the files on that folder hold the ca combo of 5G too?
 

tribalfs

Senior Member
Mar 28, 2014
2,176
1,631
Wow congrats thanks for the info. So I think this method only works for U and U1 models of note 20.
I'm still struggling to activate my 5G I have a U1 model.
Tried everything but no luck!
The last thing I did is to add 5G ca combo manually with the right LTE anchor band which is band 3 on n41 5G band but still the 5G is not restricted using Smart sim.
I cannot test it on Globe since there's no 5G signal here.
View attachment 5703867
Globe also uses band 3 and nr41 at least in my place
 

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intheb0x

Senior Member
Dec 8, 2007
1,472
365
Milwaukee WI
OnePlus 8
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?
Did you figure out how to get your mm wave back? I accidentally deleted mine and somebody posted a file fix but you have to get to EFS explorer through qpst in order to install it and you'll have mm wave back do you still have the phone? If so I'll post the file and how to for you.
 

intheb0x

Senior Member
Dec 8, 2007
1,472
365
Milwaukee WI
OnePlus 8
I confirmed that the anchor band is really the problem by getting the ue capability logs.

Deleting cap_prune file or editing it manually to support the supported combo of 5G and LTE band (anchor band) doesn't affect on what the modem is configured.

The combination is still LTE anchor band 41 on n41 5G band (Sprint US CONFIGURED) based from logs.
Smart PH uses LTE anchor band 3 on n41 5G.
View attachment 5704553
CSC change to non US telco isn't possible for u and u1 model.

00028874 file on rfnv folder contains the ca combo of LTE phones.
Maybe one of the files on that folder hold the ca combo of 5G too?
Where is this file located that you're talking about above I didn't know you could edit the anchor bands and such I would definitely like to play around with that.
 

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
Where is this file located that you're talking about above I didn't know you could edit the anchor bands and such I would definitely like to play around with that.
It's just what I thought but sadly the anchor band settings are encoded on the firmware and cannot be modified so modifying it isn't possible for now I guess?

I'm waiting for the android 13 update maybe they will remove the anchor band limitation since s22 has no anchor band limitation on XAA CSC based from what I have read on the comment section.
 
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intheb0x

Senior Member
Dec 8, 2007
1,472
365
Milwaukee WI
OnePlus 8
It's just what I thought but sadly the anchor band settings are encoded on the firmware and cannot be modified so modifying it isn't possible for now I guess?

I'm waiting for the android 13 update maybe they will remove the anchor band limitation since s22 has no anchor band limitation on XAA CSC based from what I have read on the comment section.
I see. I hope it's coming soon!
They claim the beta is coming sooner than later!
 

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
Screenshot_20220928_193046.jpg
The note 20 ultra 5G puerto rico CSC are now on bootloader 3 so maybe the upcoming updates on all CSC will update the bootloader too.
If you're still testing something don't update the upcoming september security update if you still want to downgrade to A11.
 

ejoya

Senior Member
Nov 24, 2005
158
8
View attachment 5722209
The note 20 ultra 5G puerto rico CSC are now on bootloader 3 so maybe the upcoming updates on all CSC will update the bootloader too.
If you're still testing something don't update the upcoming september security update if you still want to downgrade to A11.
same problem as my fold 3 us u1 model. I can get n78 on some spots in the ph (mainly malls, makati and bgc area) n41 CA does not work even if all tweaks have been made. It seems the anchor band is hardcoded. On my flip 4 US model, I can get 5g easily with the same settings without problems.
 

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
same problem as my fold 3 us u1 model. I can get n78 on some spots in the ph (mainly malls, makati and bgc area) n41 CA does not work even if all tweaks have been made. It seems the anchor band is hardcoded. On my flip 4 US model, I can get 5g easily with the same settings without problems.

same problem as my fold 3 us u1 model. I can get n78 on some spots in the ph (mainly malls, makati and bgc area) n41 CA does not work even if all tweaks have been made. It seems the anchor band is hardcoded. On my flip 4 US model, I can get 5g easily with the same settings without problems.
Try this one. He change it to VZW CSC

And it's just softcoded on the firmware not hardcoded so it can be fixed by an update if they want too. I'll wait for the android 13 update.

Edit: don't try this if you're on note 20 ultra 5G it removes the esim subscription
 
Last edited:

Romeo Nickolas

Senior Member
Jun 16, 2022
71
12
I'm now on android 13 oneui 5 and still the 5G is not restricted. I think they did nothing on the modem settings or carrier config just the UI update.

So it's confirmed. This US varriant of note 20 ultra will never be support the 5G here in the PH.
Screenshot_20221124_170527_NetMonster.jpg
 

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    Hi! I created this thread for SM-N9860 HK/TW/CH variant users from Philippines.

    The GOAL is to make our units work with our local carriers':
    • 4G Carrier Aggregation (4G CA) (i.e. 4G+/LTE-A).
    • 5G network
    and resolve any carrier related issues that you want to address.



    First, I will share my personal experience with my unit using my Globe 5G enabled postpaid sim. My N20U 5G unit is from Hongkong with TGY (Hongkong) CSC.
    While on TGY, 4G CA and 5G on my unit were NOT working. I am only getting max 20mbps with 4G and not getting the 4G+ signal.
    Note: To check the existing CSC, go to settings > about phone > software info >service provider SW ver. You should see something like TGY/TGY,TGY/TGY.

    However, I was able to change my CSC from TGY to BRI (Taiwan's CSC) using the procedures in this thread.
    I am now on BRI and I am glad that 4G CA is now working. I am already getting 70-125mbps on speedtest with it. Check this post on how to check 4G CA.

    However, I have not tested the 5G signal yet as I am far from a 5G enabled location.
    It's noteworthy though that Taiwan telcos use 5G bands n78, n257 and LTE DSS which include that n78 5G band being used by telcos in the Philippines (source: List of 5G NR networks
    )
    I am hoping for fellows to hit this thread try this change and test if this will work on his/her network, hopefully on 5G network too.



    UPDATES/SOLUTIONS

    How to access ServiceMode menu on pre-OneUI 3.0
    1. Install Google Phone app from Play Store and set it as default dialer.
    2. Open Google Phone app and key in *#*#27663368378#*#*


    How to access ServiceMode menu on OneUI 3.0/3.1
    I just saw a method for opening the menu again for Android 11. I saw this on the US thread. :)


    Just check the code on my N9810 BRI
    This method only works on Qualcomm versions
    I use *#*#276633683782#*#* on Google phone dialer
    and it brings up a service mode screen.

    Press [5] RF Test and choose [2] PREF MODE SET
    (or other options also works )
    It will show Please use *#2263# for mode set
    Then just tap three dots on right top menu and choose back
    It will bring you back to the main menu.

    by kent800129

    I can finally go to UE settings with this.


    Enabling 5G Stand Alone mode
    Go to UE SETTING&INFO -> SETTING -> PROTOCOL -> NR5G -> NR5G SA/NSA Mode Control > SA/NSA ENABLE Exit


    Solution to make 5G work in PH (also works in some countries with compatible 5G bands)
    Try this. On UE Settings>Protocol>GCF>Remove NR Whitelisting. Then reboot. That's the first step I did.

    Unhide/Enable 5GNR bands 3 and 28
    Hi there,
    Please go to [2] UE Settings >> [2]System
    On the last page choose [1] SET LTE BAND CONFIG
    Then click on [1] SET DEFAULT LTE BAND
    Reboot your phone and check again the available NR bands.


    How to check what 5G bands are enabled
    4. Go to UE SETTING&INFO -> SETTING -> PROTOCOL -> NAS -> NETWORK CONTROL -> BAND SELECTION -> BAND SELECTION SIM * -> NR5G Band Preference -> (enabled ones are marked with asterisks)

    If not yet enabled, select each then -> GO MAIN -> APPLY BAND CONFIGURATION. Exit then reboot

    Better 4G Carrier Aggregation (4G+)
    UE Settings>System>Diversity Control Menu>LTE Diversity Control>LTE 4RX ALL Enable.

    Note: You may need to redo the above procedures after software updates.



    5G Bands Supported by the device
    Bands 1, 3, 28, 41, 78 and 79


    5G Bands in PH
    The following are the mobile 5G bands being used in the Philippines from foi.gov.ph:

    - Smart: 1, 3, 5, 8, 40, 41 and 78
    Update: According to this article in smart website, they are using NR28, NR41 and NR78 with 5G CA.

    - Globe: 1, 3, 8, 28, 40, 41
    Update: According to Globe's website, they are using NR41 and NR78
    View attachment 5327677

    -DITO: 1, 28, 34, 41, 78

    The 5GNR bands missing is in N9860 are 5, 8, 34 and 40. Theoretically, our device should work in 5G sites utilizing 5GNR bands 1, 3, 28, 41 and 78 which our device is capable of. Otherwise, 5G will not work.

    [/B]

    You can also check enabled bands using this app (already blocked by Samsung in June 2022 update)

    Enable DITO Internet and VoLTE to enable call and sms

    Add the following DITO's IMS APN (in addition to internet APN)

    DITO IMS APN:
    Name: IMS
    APN: ims
    MCC: 515
    MNC: 66
    APN type: ims
    APN protocol: IPv4/IPv6
    APN roaming protocol: IPv4/IPv6

    ---------------------------
    DITO INTERNET APN:
    Name: DITO Internet
    APN: internet.dito.ph

    Update: Confirmed working on TGY and BRI






    METHODS FOR ONEUI4.0

    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.

    Update: This stopped working after a certain update.
    Fix 5G Reception

    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
    The good thing though is that it seems that we do not anymore need to manually remove the NR whitelisting on SM-N9860. 5G now works right out-of-the-box on the latest firmware even after performing factory reset on the device .
    6
    Try this. On UE Settings>Protocol>GCF>Remove NR Whitelisting. Then reboot. That's the first step I did.
    4
    xUtsumi and kent800129.....Greetings form the UK

    Huge thank you to your both. :)(y):D:p:p:cool:

    I had almost givem up with this dam phone. Although it is my wife's , no 5g had stopped me importing one for myself.

    In the UK this phone got 5g on networks Vodafone and Three but not on god dam EE which is the biggest UK network.

    I am going to link your post in the other thread!

    Thankyou Thankyou Thankyou
    It was a consolidated effort. :) Also the only necessary part on enabling 5G is the first part. I just included the next 2 parts to increase signal strength and diversity stuff. Although I don't understand what they do fully, I've researched a little and enabling them will not hurt battery life while increasing the strength of signal. Correct me if I'm wrong on this. :D
    4
    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.
    4
    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 agoI'll share soon.

    View attachment 5521715 View attachment 5521721

    What does deleting the entire L2 directory do?

    If delete L2 directory with QPST tool

    Removed NR Whitelisting in GCF?

    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