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.
[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0
- Thread starter tribalfs
- Start date
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?
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.
Attachments
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.
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.
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.
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.
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.
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.
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).
I'm sorry I should have explained. I have a s10 5g with x50 modem. So it has separate modems.
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.
Mine is a tmobile variant with tmobile but it has a csc WRD, which is worldwide.
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.
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.
Can anyone help me with the drivers please I don't know what to install them under everyone says just install the Samsung drivers well that's not working I keep getting that there's not an embedded file system in QPS t I manually install drivers from the Qualcomm diagnostics or whatever and I get the Snapdragon modem and everything to show up but it just won't connect can somebody tell me the right way to install it that guy does not work for me I keep getting that the embedded file system is not available or it's not there the same thing that other guy was talking about the problem he had he said he reinstalled the drivers with new ones and it worked well I used the newest ones and they didn't work I've uninstalled I reinstalled I'm at my wits ends I'm ready to throw this thing against the wall
Have you tried all the suggestions in the comments here?
If you're on 5G open the port with X55 on the phone label.
Try to remove your sim or try another sim before doing this because some telcos blocked the access of efs.
What's the exact model of your phone?
Sm-g988u1
Here's the thing also isn't removing the sim pointless because when you have to insert the Sim you want to use all the settings you just changed revert back.
Sorry for sounding crazy I'm just at my wits end with this thing it's been nothing but problems I bet the stupid Sim is blocking it because it blocks everything else every damn cold is blocked too but with the OnePlus 8 if I go in there and change things and then I switch Sims then all the settings revert if I change carrier policy or anything all the settings go right back to the way they were when I change Sims.
Here's the thing also isn't removing the sim pointless because when you have to insert the Sim you want to use all the settings you just changed revert back.
Sorry for sounding crazy I'm just at my wits end with this thing it's been nothing but problems I bet the stupid Sim is blocking it because it blocks everything else every damn cold is blocked too but with the OnePlus 8 if I go in there and change things and then I switch Sims then all the settings revert if I change carrier policy or anything all the settings go right back to the way they were when I change Sims.
Try all posible fix first before thinking other problems because your issue here is you can't access the efs.
There's a carrier policy file here that won't update the csc if you change sim. Try to read all thread comments most of the answers are already here.
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?
Similar threads
Top Liked Posts
-
There are no posts matching your filters.
-
8Hi! 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
