Database Develop

Force WCDMA Only

Hi all,
Would like to check if anyone knows how could i set "WCDMA Only" (3G Only) on Galaxy S?
I can only Force 2G only via the settings menu, but not 3G only.
Managed to access the "Phone Info" menu via *#*#4636#*#*, selected "WCDMA Only" from the dropdown box.
However, nothing seemed to be set nor i see any button to save the choice?
Anyone happen to know how can i have it set? Or i could manually set it by applying some settings somewhere?
Thanks alot!

you cant force 3g... you would get no signal if you didnt have a 3g connection

boinger66 said:
you cant force 3g... you would get no signal if you didnt have a 3g connection
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Click to collapse
I know that. However, such settings are available in Nexus One.

i2umi said:
I know that. However, such settings are available in Nexus One.
Click to expand...
Click to collapse
It is also available on the HTC Desire :
WCDMA only
GSM/WCDMA auto
GSM only

*#*#197328640#*#* > debug screen > phone control > network control > band selection
You need to do this after each reboot though as it does not stick.

Is there a way to shortcut this with anycut?

-Double Post-
Sent from my GT-I9000 using XDA App (Which seems less than stable...)

The app Network simplifies the procedure quite a bit. Haven't actually gone into a low signal spot yet to see if it fully works as intended though.
Sent from my GT-I9000 using XDA App

thank you very much..i have been searching this high and low...you save my day..

Thank you so much! This helped me diagnose the SGS and see if I have 1900 3G in my area (1 bar). here's a tip that I used for quick access to the debug screen just as a trial and it actually worked
Enter ONLY *#*#197328640#*# then hit add to contacts (notice there is no * at the end).
Give it a name (Samsung Debug Screen) and tap to edit the number and enter the final * at the end.
Save and exit. Now whenever u want to enter debug mode to change the network or other stuff just type *#*# and it should appear. Tap on the contact and voila!

clubtech said:
*#*#197328640#*#* > debug screen > phone control > network control > band selection
You need to do this after each reboot though as it does not stick.
Click to expand...
Click to collapse
Awesome, thanks for this! Lots of fun debug info in there.
boinger66 said:
you cant force 3g... you would get no signal if you didnt have a 3g connection
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Click to collapse
My operator doesn't have a 2G network... all they have is 3G. There's no point in my phone looking for anything other than a 3G network.

Solution added to FAQ

sorry to ask if this is already answered but how exactly to i get to CONFIRM my wcdma only selection? i check it and nothing happens, data connection stays on "G" symbol. I know for sure that at the place where i tested i get NO 3g signal. which means probably that i should be losing all signal after choosing wcdma only. that does not happen. also if i close the phone info app and reopen it, choice gets back to default (3g/gprs).
any help appreciated... I really need this.

forcing to only 3g is a bad move, i tested it on my n1 and i kept dropping calls once 3g lost signal.

raspdeep said:
forcing to only 3g is a bad move, i tested it on my n1 and i kept dropping calls once 3g lost signal.
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Click to collapse
I know but i need it for the internet.. and i need it badly.. please help anyone as soon as possible. thank you guys

Its available in the new firmware I9000XWJM1
Hey, its there in I9000XWJM1 and tested working great as expected! However its a beta so you may see other issues. Not sure if its there in latest stable.

Just to confirm, i upgraded my firmware to XWJM5 today, and i noticed that in settings > wireless and network > mobile networks, there's a new menu 'network mode' in which there's 3 options - auto / gsm only / wcdma only. Nice touch!
In answer to the cynics, there are times when browsing, when the phone is borderline whether to give you 2g or 3g, it does come in handy, and it's safer too, as if i have to browse on 2g it makes me want to smash the phone up!!

spark001uk said:
Just to confirm, i upgraded my firmware to XWJM5 today, and i noticed that in settings > wireless and network > mobile networks, there's a new menu 'network mode' in which there's 3 options - auto / gsm only / wcdma only. Nice touch!
In answer to the cynics, there are times when browsing, when the phone is borderline whether to give you 2g or 3g, it does come in handy, and it's safer too, as if i have to browse on 2g it makes me want to smash the phone up!!
Click to expand...
Click to collapse
LOL "safer"

@OP Although 'WCDMA only' mode may not be a good idea and hence not recommended but just to confirm
my current Build i9000XXJPH have following three modes
GSM/WCDMA (auto mode)
GSM only
WCDMA only

JM8 build also have this mode. I noticed that when I flash the i9000M (bell version) previously it didn't have these modes.

[q] tried to only use 2g, now can't go back to 3g

Hi all,
a little while ago, i learned how to use only 2g,
how i did it was:
settings -> wireless network -> mobile networks -> network mode -> and then chose gsm only.
it was good because it only used 2g. however, now i went back to the previous option,
GSM/WCDMA (auto mode) but it still only uses 2g.
I don't know if this is relevant, but i'm using a i9000m, but unlocked on rogers...
thanks in advance!

also currently using.. darky's gingerbread rom is that makes a difference?

i've also played around with quick settings before, however, i've double checked my apn settings and they seem fine...

anyone? please help :S

Try this, go to dialer and input *#*#4636#*#* then choose phone info, select wcdma prefered in the dropdown list, then press menu and select band. After you do this, go to settings and turn airllane mode on, then off and wait, you should have 3g back.
Sent from my Galaxy S using XDA App

Any way to force EDGE over GPRS?

Can anyone tell me if there is a way to force my phone to stay on EDGE. I have good EDGE signal but it keeps jumping to GPRS.
Thanks

I don't have my note yet, but in SGSII. If you go to settings>>wirelsss and network>>Mobile Networks>>Network Mode, Choose GSM only, it should always stay in Edge.
It worked for me.

nocturnal_screamer said:
I don't have my note yet, but in SGSII. If you go to settings>>wirelsss and network>>Mobile Networks>>Network Mode, Choose GSM only, it should always stay in Edge.
It worked for me.
Click to expand...
Click to collapse
hmm I'm running a AOSP ICS rom so don't see Network Mode anywhere under Mobile networks

this will prevent you to join 3g, if u select gsm only, it will disable 3g.
but i dont know you can select between edge n gprs
Sent from my GT-N7000 using xda premium

dr.ketan said:
this will prevent you to join 3g, if u select gsm only, it will disable 3g.
but i don't know you can select between edge n gprs
Sent from my GT-N7000 using xda premium
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Click to collapse
well I'm using a unlocked GNote on Tmobile so for now no way getting 3g anyway but in a area where I have full bars on Edge sometimes it switches to GPRS which I'm trying to prevent.

I think it depends on network, n even i dont believe it have relation with nwtwork bar. You will get edge or gprs according you are connected with network. So it is metwork dependent. I dont think you can change it manually, as both are comes under 2g. We can chose 2g/3g, but afaik we cant select subtype.
Sent from my GT-N7000 using xda premium

sucks for me

you can try with this hidden menu, in the phone dialer input:
*#*#4636#*#*
first option, about phone, slide to the bottom and you will see network connection options, choose CDMA only to force EDGE, also you can choose more options than in the normal menu, don't modify anything else in this menu

ultracrix said:
you can try with this hidden menu, in the phone dialer input:
*#*#4636#*#*
first option, about phone, slide to the bottom and you will see network connection options, choose CDMA only to force EDGE, also you can choose more options than in the normal menu, don't modify anything else in this menu
Click to expand...
Click to collapse
Codes won't work on aosp roms.

Taiwan N9208 CSC:BRI, How to enter "WCDMA ONLY" mode

Hi Guys,
I have been trying to find a way to connect to WCDMA mode only and not the "3G/2G (Auto Connect)" mode. I need to do this because 3G reception is little poor but the phone always stays in 2G mode and the internet is DAMN slow.
The Normal method in usual android phones is to type *#*#4636#*#* which brings up a Network selection menu, which doesn't work in our Note 5.
@developers: Can one of your ROM Control apps can be helpful here which have that option of changing Radio to "WCDMA" option only. I recall using a custom ROM once which had that development app built-in which allowed to do so.
PLEASE HELP!!

Bump!
No help possible?

Nothing?

How to set simcard1 using 4G and simcard2 using 3G?

I am using miuipro rom for redmi 4x.
By dialling *#*#4636#*#*, i have set simcard1 to use 4G Only, and simcard2 to use 3G. This only works temporary and after reboot, the setting will revert to simcard1 using 4G and simcard2 using 2G (GSM only..)
I have tried other roms and the same thing happen. Could we set simcard1 to use 4G ONLY, and simcard2 to use 3G ONLY permanently, even after reboot the phone?
Thank you.

sariputra said:
I am using miuipro rom for redmi 4x.
By dialling *#*#4636#*#*, i have set simcard1 to use 4G Only, and simcard2 to use 3G. This only works temporary and after reboot, the setting will revert to simcard1 using 4G and simcard2 using 2G (GSM only..)
I have tried other roms and the same thing happen. Could we set simcard1 to use 4G ONLY, and simcard2 to use 3G ONLY permanently, even after reboot the phone?
Thank you.
Click to expand...
Click to collapse
Did you try to change it in settings? Go to Network Internet/ Sim Card and change "Preferred Sim for"

Did you try to change it in settings? Go to Network Internet/ Sim Card and change "Preferred Sim for"
Sorry for doublepost.

Samuitan said:
Did you try to change it in settings? Go to Network Internet/ Sim Card and change "Preferred Sim for"
Click to expand...
Click to collapse
Have tried that, in the setting, only one simcard can be set the prefer network ( Have set to use 4g only), which the simcard is chosen for internet data, and the second simcard network cant be set , and second simcard network will be automatically set by the system and it will always be GSM (2G)...........
By going to dial *#*#4636#*#*, that's the only way to set both simcard prefer network, but everytime restart the phone the setting will be gone, and revert back to simcard1 (4G) and simcard2 (2G, GSM)........