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

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gr_nik81

Member
Feb 4, 2021
12
0
Samsung Galaxy Note 20 Ultra
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 888 which is made my tsmc.)

Surprisingly my note 20 ultra SD 865+ held up better than my exynos note 10 plus.
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).
 

gr_nik81

Member
Feb 4, 2021
12
0
Samsung Galaxy Note 20 Ultra
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).

Screenshot_20220217-192624_Call settings.jpg
 
Last edited:

tribalfs

Senior Member
Mar 28, 2014
1,839
1,372
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).

View attachment 5539561
Yes, check the previous posts or the opening post
 
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gr_nik81

Member
Feb 4, 2021
12
0
Samsung Galaxy Note 20 Ultra
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.
 

tribalfs

Senior Member
Mar 28, 2014
1,839
1,372
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.
You can send me your modified files if you want.
 

teketake

Member
Sep 5, 2019
7
0
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?
 

teketake

Member
Sep 5, 2019
7
0
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.
 

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poomsirawit

New member
Mar 28, 2022
4
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.


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.
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)
 
Last edited:
Dec 16, 2018
13
2
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)
by next update ro reset factory, they will back.
 

Yassop

Member
Mar 6, 2019
5
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.


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.
Hi,

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

Thanks!
 

Culex316

Senior Member
Apr 1, 2012
511
219
Miami, FL
Samsung Galaxy S20
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.
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?

1649524298280.png
 
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ShotoGTR

New member
Apr 11, 2022
1
0
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.
 
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  • 6
    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

    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



    Video Guide:



    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
    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
    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
    3
    Hope this solution helps others on this thread. :) Thanks @kent800129 for the idea. We can finally enjoy 5G. Hahaha.
    xUtsumi and kent800129.....Greetings form the UK

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

    I had almost given 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