The Samsung Galaxy S8 and S8+ were recently updated to Android Oreo, and among its new features includes a full band selector (replacing the old service menu that was disabled with the security patch of November / 2017)
This mode lets you choose a specific network (as does the test menu in AOSP) and also choose a band specified within all supported.
Now, the only known way to enter this menu is through an activity manager (Nova Launcher or Quickshortcutmaker for giving examples) and look for the com.samsung.HiddenNetworkSetting app
When you find the activity, you must execute it and the next window will appear:
https:// imgur .com/a/61DJo
Where you can choose the network mode. If you open the side menu, you will see the other 2 options (Band Selection and 5G SA Mode) then select "Band Selection" and the following will appear:
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Here you can choose the available bands, and then activate the slider that says "Selection". In this way, the band chosen as the default (Remember that if you select only one of the bands, you will not have CA)
I remember again that this method only works with builds based on Android 8.0 Oreo (RAP or RB7)
I remember again that this method only works with the builds based on Android 8.0 Oreo (RAP or RB7) and I do not know if it will work on other models besides the international variants of the Galaxy S8 or S8+ (SM-G950F / FD and SM-G955F / FD)
That is all! For now, I will be alert to possible doubts, but I remember that this app is only available through a hidden activity within the Oreo update, and I do not know if it will be maintained in successive updates. I will continue informing.
Thank you so much
Thank you very much for this useful info and for some unknown reason I am not getting Band 40 in band selection menu even when I am 100% sure this phone support TDD band 40
Related
I found there are a lot of "debug" apps in the firmware for Z3,
and I'll introduce the most interesting one - "Tech Mode by Sony"!
With "Tech Mode by Sony", you can check what band you are connecting only with your Xperia.
I only confirmed "Tech Mode by Sony" aka TechMode.apk is avairable in the firmware for Z3 / Z3 Compact 23.0.A.2.98 / 23.0.A.2.105.
Here is extracted files from Z3 D6603 23.0.A.2.105: Download
[UPDATE]
You can get Tech Mode for Z1 or Z2 by flashing/downloading Customized UK ftf
How to check connecting band
1. Dial
Code:
*#*#*386#*#*
or
Code:
*#*#*585*0000#*#*
2. "Tech Mode by Sony" will be opened, tap what you are connecting.
e.g. If you want to check LTE band, tap LTE and if you want to check W-CDMA band, tap UMTS.
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
3. Check "Serv EARFCN" for LTE or "UARFCN" for UMTS
4. Open LG Space or some other apps such as EARFCN Calculator
e.g. Type number of "Serv EARFCN" to "Earfcn" of LG Space and click "Frequency ...".
Then you wil get band info like this:
For UMTS, click "UMTS Frequency" tab.
This is very useful if you are interested in network or unlocking bands.
Great! Tks for sharing this....
Anyway, tested on Z1 4.4.4 .133 firmware and all show N/A on the app. Some are display like IMEI......
Very helpful for me, T-Mobile would intermittently switch me to LTE Band 4 where signal was low instead of keeping me on Band 12 which gave me full signal. After disabling Bands 2&4, I am always on Band 12 now with full signal.
Not working for 5.1.1 on 6603
Great found!
Thank you so much my friend!!
It works on the Z2 with 5.1.1 ROM 264
Download the apk file, place it in system apps as 755 and reboot.. (you need custom kernel to write in system folder, or deactivate protection)
Thanks a lot
All other apps I've tried failed to read the earfcn Nr.
Hi @AndroPlus, I'm trying on a Z3C running stock MM 23.5.A.1.291 (booloader locked) D5803.
Both strings don't work. I mean, when I digit the last character "*" all the text I have digit (in the text dial number) is automatically deleted.
Is the apk working in this case?
Thanks
Hi,
I have new unlocked Axon 7 Mini and after Nougat upgrade there is a new VoLTE option in the menu. I can turn it on but nothing happens. My carrier is Vodafone Czech Republic and it supports VoLTE, for example on my second phone, Nubia N2, with the same sim card, when I turn on VoLTE, the icon appears in statusbar and everything works. On MTK phones there is also hidden Engineering Menu (*#*#3646633#*#*) where are some IMS settings, and is possible to set "operator_code" and "mncmcc check" to get VoLTE working.
For Qualcomm Snapdragon phones, I found this guide here on XDA:
https://forum.xda-developers.com/oneplus-5t/how-to/guide-volte-vowifi-german-carriers-t3817542
But when I open "PDC" app in my QPST start menu folder my device is not listed and there are no options to change.
Is here someone with an european carrier and has VoLTE working on Axon 7 Mini? If you know how to get it working, please share your experiences.
Any help will be much appreciated. :good:
I did a modem image backup from my phone - the file NON-HLOS.bin can be opened in WinImage and what is interesting, here is the directory structure:
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There are modem configuration files (mcfg_sw.mbn) for different operators in different countries. It looks like that Vodafone VoLTE is supported in these european countries: Deutschland, Italy, Portugal, Spain, Turkey and UK.
And other interesting thing are these "secret" codes:
*#*#6266344#*#* – SW MBN Configuration.
*#*#3266344#*#* – HW MBN Configuration.
*#*#33266344#*#* – setMbnAppState: false
*#*#76266344#*#* – setMbnAppState: true
- The last one enables hidden application "MBN Test" which allows select particular "mcfg_sw.mbn" files mentioned above and activate specific modem configurations for particular operators in various countries.
My idea was to activate MBN configuration file for example "VoLTE Vodafone Italy" which may contain similar configuration as Vodafone Czech Republic. But when I try to activate it, phone is immediately restarting and after restart the settings are gone and the default MNB file is loaded, which is, in my case, OpenMkt-Commercial-CU.
Here are some screenshots from the app MBN Test:
Also I have tried to add the IMS APN but it has no effect at all.
How can I start the 'MBN test' app after enabling it via *#*#76266344#*#* ? It's not listed in my app launcher.
SGH-i200 said:
How can I start the 'MBN test' app after enabling it via *#*#76266344#*#* ? It's not listed in my app launcher.
Click to expand...
Click to collapse
The "MBN Test" icon should appear automatically in your launcher once you have activated the app using the code.
And *#*#33266344#*#* code hides the app shortcut.
Machi007 said:
The "MBN Test" icon should appear automatically in your launcher once you have activated the app using the code.
Click to expand...
Click to collapse
I forgot that I'm running LOS14.1 which does not support VoLTE and doesn't have that test app. Too bad. I want VoLTE and LineageOS!
My mobile operator not support VoLTE (Poland Play)
The miui version I am using is the 12.0.8eu stable version.
And I installed all other versions (eu, eeu, global, Chinese and even developer version).
All miui12 Android 10 versions, including the current developer version, when using 5G data
Mobile phone information by pressing *#*#4636#*#* The item is set as unknown in the basic network type
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The reason is that there is no 5G (NR) in the default network item.
As a result, data is cut off or a calldrop occurs when switching between 5G and 4G.
Now, the eu developer rom is built up to miui12 android 11 (version 20.8.13).
I installed the latest developer rom on my phone. And the result?
Not seen in all miui12 android 10 versions The basic network type NR has been new added.
And there is no longer a calldrop or signal interruption when using 5G (or 4G) data.
Of course, it is not checked as Unknown.
I would like the manufacturer or ROM developer to solve this problem quickly.
Can you create an update patch that can add basic network items by simply flashing on Android 10 version using TWRP?
I want to hear the thoughts and opinions of many users.
whitemilk_kor said:
The miui version I am using is the 12.0.8eu stable version.
And I installed all other versions (eu, eeu, global, Chinese and even developer version).
All miui12 Android 10 versions, including the current developer version, when using 5G data
Mobile phone information by pressing *#*#4636#*#* The item is set as unknown in the basic network type
The reason is that there is no 5G (NR) in the default network item.
As a result, data is cut off or a calldrop occurs when switching between 5G and 4G.
Now, the eu developer rom is built up to miui12 android 11 (version 20.8.13).
I installed the latest developer rom on my phone. And the result?
Not seen in all miui12 android 10 versions The basic network type NR has been new added.
And there is no longer a calldrop or signal interruption when using 5G (or 4G) data.
Of course, it is not checked as Unknown.
I would like the manufacturer or ROM developer to solve this problem quickly.
Can you create an update patch that can add basic network items by simply flashing on Android 10 version using TWRP?
I want to hear the thoughts and opinions of many users.
Click to expand...
Click to collapse
I had the same issue on miui 11. I never investigated as thoroughly as you but when I went to 12 the issue disappeared.
SMS not working properly on 4G or WiFi calling on T-Mobile or Verizon. Intermittent send/receive reliability. Delay in receive between 15 min to 2 hours, then receive several text messages simultaneously. Found some stuff about intermittent SMS functionality on OOS most recent version, but all the errors came down to Google Carrier Services v50. Please point me in the right direction. Thank you so much for developing such an awesome ROM!
Phone: One Plus 8 Pro IN2023
LineageOS version: lineage-18.1-20210508-microG-instantnoodlep
Build number: lineage_instantnoodlep-userdebug 11 RQ2A.210505.303 eng.root.20210508.144057 dev-keys
LineageOS Download url:
index - powered by h5ai v0.29.2 (https://larsjung.de/h5ai/)index - powered by h5ai v0.29.2 (https://larsjung.de/h5ai/)
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download.lineage.microg.org
Gapps version: microG services core v 0.2.18.204714
Did you--
wipe: factory wipe after clean install from brand new stock, no issues with install (kudos on install guide - very easy from https://wiki.lineageos.org/devices/instantnoodlep)
Are you using--
a task killer: no
a non-stock kernel: no
other modifications: no (except microG)
I also have this issue. It's mostly the same setup as you. Though I'm on One Plus 7 Pro Guacamole. And I only have T-Mobile. Otherwise everything sounds more or less the same. Did you every find a solution? My temp mitagation steps (until I find a solution) include; Turning off the wifi and only using the cell carrier. Kill any currently "Sending" messages in the SMS app. "Force stop" the running process of the SMS app under the "Apps & notifications" in settings. Then try sending it again. It works 9 times out of 10. If I can't get it to work. Then a full reboot usually does it. But I'd really like to find a fix for it. This issue has persisted from Lineage 17 to 18. Everything afaik is up to date.
As in android 11 i was able to access
Com.example.tmo.bandmode
Using activity launcher
And i forgot to reset the bands and updated to android 12, now i am stuck with band 1 of LTE, and now i no more have access to band change activity
Anyone can upload the com.example.tmo.bandmode apk from their android 11 build? Or a solution to change band, as i badly need it in my locality.
Without root.
Did you find any solution?
Poojan Solanki said:
Did you find any solution?
Click to expand...
Click to collapse
No, plus no is replying any suggestion
Did you find any solution now?
Network band selection no longer available
UPDATE (04/07/2022): This is the response Samsung gave about band selection being disabled. It won't be coming back it seems. Ever since I had the Note 10+ 5g, I had been able to use the band selection app to open the hidden menu which would allow me to select which bands to connect to and...
eu.community.samsung.com
this work for me
Ulfa_indo said:
Network band selection no longer available
UPDATE (04/07/2022): This is the response Samsung gave about band selection being disabled. It won't be coming back it seems. Ever since I had the Note 10+ 5g, I had been able to use the band selection app to open the hidden menu which would allow me to select which bands to connect to and...
eu.community.samsung.com
this work for me
Click to expand...
Click to collapse
thats for samsung, and required Knox, and oneplus dont have knox plus android 12 dont allow command permissions for allowing owner option in alliance x shield,
we need a working solution for oneplus android 12
till now nothing is working for changing lte band in android 12
Try rooting it and then using network signal guru to force other bands.
BeatNoMoreYT said:
Try rooting it and then using network signal guru to force other bands.
Click to expand...
Click to collapse
i dont have any use of root , and rooting just to change band not feel like doing it.
my point was we were able to change band in android 11 without root
so finding or is their a way to change it in android 12 without root
the band change app/activities are locked and not able to launch them in android 12 without root.
tried using activity launcher and similar apps too here is the ss
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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