USSD code for Network Selection - Samsung Galaxy S9+ Questions & Answers

Hi guys I'm on vodafone network,Internet doesn't work on 3g,Works only on 4g.Since 4g network strength is not so strong in my Area my phone switches to 3g & Net stops working.I tried this code *#*#4636#*#* but it doesn't work.Is there any method to permanent select 4g.In settings there is only option for Lte/3g/2g.
Thanks for your time.

I do not know the dial code, but can open the menu with this app:
https://play.google.com/store/apps/details?id=com.kliksob.forgswitch

Thanks Bro

Related

Any Indian Airtel User Running wolf rom?

I am trying to activate 3g on my x10 and i am not getting the 3g signal on my phone.
wolfbreak rom
bb54
mobile office
Im running Airtel with my CM wolf rom.
I can use both 2G and 3G without any issues.
Check if your sim supports that.Older sims have problems in receiving signals.Suggest you to take a new sim with same number and try.
make sure your area has a 3g coverage of airtel... and make sure you manually make your phone to use 3g network... for that
just
1. got to any homescreen.
2. long press and select widgets.
3.select power control
4. select the toggle switch for 2g/2g
5. go down, down down
6.In chose network modes select 2g/3g only
7.press ok
8. now press the 2g/3g toggle till it displays 3g.
and youre done...
if this dosent helps or you are not getting any network for long time then sorry dude your area is not 3g enabled..!!
HIT THANKS BUTTON IF HELPED..!!
In settings> wireless & network settings > mobile network > uncheck "use 2G network only"
Hope this helps...

[Q] Data network keep changing between HSDPA /3g

Hello I updated my S2 to jellybean and the data network keeps changing between HSDPA and 3G. Making the use IMPOSSIBLE.
When I had the ICS there was a hiden menu *#301279# to disable HSDPA.
When I dial *#301279# I get somethin like "INVALID MMI CODE"
My phone is in spanish.
In JB I cannot get to this menu.
Is there an alternative to make it only use 3G.
Thank you
cdrasmu said:
Hello I updated my S2 to jellybean and the data network keeps changing between HSDPA and 3G. Making the use IMPOSSIBLE.
When I had the ICS there was a hiden menu *#301279# to disable HSDPA.
When I dial *#301279# I get somethin like "INVALID MMI CODE"
My phone is in spanish.
In JB I cannot get to this menu.
Is there an alternative to make it only use 3G.
Thank you
Click to expand...
Click to collapse
This is your code: *#*#301279#*#*
Sorry I mistyped it.
That code does not work with JB
Thanks
cdrasmu said:
Sorry I mistyped it.
That code does not work with JB
Thanks
Click to expand...
Click to collapse
Strange it works for me, and I'm running 4.2.2
Sent from my GT-I9100 using xda app-developers app
My firmware is stock GT-I9100 version 4.1.2.
And it does not work.
Any ideas?
Thank you
Data network keep changing between HSDPA /3g (SOLVED)
I found the solution in this thread:
http://forum.xda-developers.com/showthread.php?t=1818661
Found solution:
First enter service menu via secret code
*#197328640#
In the menu, choose the following items sequentially:
1 (debug screen)
8 (phone control)
3 (nas control)
5 (rcc HSPA control)
And then you will find the well known menu to change the HSDPA settings
Thanks
With my S2 I9100 with OmegaROM V12, the code *#197328640# does not work
Any help?

[Q] Why I can't use 3G ?

My DNA when turn to global mode or LTE/CDMA it become no phone wave
Then I use GMS only and it work
So my fone can't use 3G and now it run on 2G/EDGE 20kb/s very slow
Any one know this problem plz tell me how to fix , THANK ALL :laugh:
you may entering code in phone dialer
*#*#4636#*#*
you enter Testing mode menu
choose Phone information
find "set preferred network type" :
switch from GSM only to WCDMA only (or whatever that contain WCDMA)
after that you may seen that your lost signal and tadaaa... 3G appears.
you must doing this method everytime you restart your DNA.
or you simply download intelli3G from google play and switch as you want.
may this help you

LTE/WCDMA Preferred Network

hiya guys! my carrier's mobile data network runs more efficiently on LTE/WCDMA which is accessed in Testing Menu by dialing *#*#4636#*#*. I already tried flashing the CUSTOMIZED PHILIPPINES, USA, GENERIC LAM, and CUSTOMIZED MY but none of them offered the network type combo. Can anyone tell me which 23.5.A.0.570 firmware has such option available?
SOLUTION:
No need to re-flash any other firmware to get the LTE/WCDMA preferred network type. The option is not available in the usual menu in *#*#4636#*#*
But it can be accessed separately in the Service Menu's Service Settings. Just dial *#*#7378423#*#* to access it.
It's really nice to finally get back my good old preferred network type setting on MM. So I guess this thread is good as closed. TY

Choosing preferred cellular operator

My native cellular operator has very bad internet speeds.
However, when i'm in some area which isn't covered by my native operator, i'm able to use network of other cellular operator, whose network is so much better - but i'm able to do it ONLY when there is no my native operator coverage.
My question - is there any way to be always connected to that other operator? If i select it manually, it quickly switches me back to my native operator.
I'm ready to root my phone, if there is any way to do it - I have Xiaomi Redmi Note 7.
Thank you in advance
Have you tried changing the APN?
yes... phone is still on native network
By default, in "Mobile Network Settings" network operator is set to "automatic". But there's an option to "manually select". This will then scan for available networks, and let you chose one (obviously only possible with the desired network in reach). Having done that, whenever the chosen network is not available, you'd simply have "no network" – it wouldn't switch to any other operator, however strong his signal might be.
At least on Android Nougat this works ...

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