[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0
- Thread starter tribalfs
- Start date
I have SM N986U. I am not getting 5G in uae. And that code did not do anything in google dialer. Someone help.
I think UAE only use n78 5G and N986U has no n78. Even if it has n78 if the LTE anchor band is different from US networks it won't work.
Does the QPST method still works on Android 13 OneUI 5.0?
I tried the *#73# service menu to activate the bands on Flip 3 (F711U1). Was able to unlock few bands. The ones that are used in my country are 28, 78, 258. 78 is now there but not other two. Not sure if the 258 is even supported by this model or not. However 28 is supported and is present in the international version.
Can anyone help me or guide in unlocking the 28 band or possible make LTE+ work?
I tried the *#73# service menu to activate the bands on Flip 3 (F711U1). Was able to unlock few bands. The ones that are used in my country are 28, 78, 258. 78 is now there but not other two. Not sure if the 258 is even supported by this model or not. However 28 is supported and is present in the international version.
Can anyone help me or guide in unlocking the 28 band or possible make LTE+ work?
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7Hi! 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
UPDATES/SOLUTIONS
How to access ServiceMode menu on pre-OneUI 3.0
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
Solution to make 5G work in PH (also works in some countries with compatible 5G bands)
Unhide/Enable 5GNR bands 3 and 28
How to check what 5G bands are enabled
Better 4G Carrier Aggregation (4G+)
Note: You may need to redo the above procedures after software updates.
5G Bands Supported by the device
5G Bands in PH
You can also check enabled bands using thisapp(already blocked by Samsung in June 2022 update)
Enable DITO Internet and VoLTE to enable call and sms
METHODS FOR ONEUI4.0
Update: This stopped working after a certain update.
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 .4
It was a consolidated effort.xUtsumi and kent800129.....Greetings form the UK
Huge thank you to your both.
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 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. 4Here 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
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.
You can check the enabled bands on your phone using this app
