[Q] can't switch between 2G and 3G - Nexus S Q&A, Help & Troubleshooting

guys I can't switch between 2G and 3G freely. I checked the "Use only 2G networks" and it didn't work, nothing happened. and the moment I exit settings and go back to that option, it became unchecked.
anyone knows what's the problem?

Can you give more info?
Are you stock/rooted/what rom/kernel/radio blah blah blah...

rooted 2.3.3, it's a nandroid backup. after which I have netarchy 1.2.5 cfs on it, radio XXKB1

anyone pls? urgent

It happens to me too I have the same kernel but running cyanogen and I switch to 2g but wont go back to 3g
Sent from my Nexus S using XDA App

JJJ010101 said:
guys I can't switch between 2G and 3G freely. I checked the "Use only 2G networks" and it didn't work, nothing happened. and the moment I exit settings and go back to that option, it became unchecked.
anyone knows what's the problem?
Click to expand...
Click to collapse
Yeap i've made the same question but no one answered...it seems that there is no option to choose between 2g and 3g.....only to choose use only 2g

I have a solution to the problem.
Go to Home-->Press menu button-->Add-->Widgets-->Power Control-->Check the button "2G/3G"(You may uncheck all other buttons,up to you)-->
Scroll down till you see "Choose Network Modes"-->Click the button right below it--> Click on "2G/3G Only/3G+2G"-->Move to top and click OK.
A new widget will now appear on the home. Here you can switch your network modes between 2G or 3G or 2G/3G.

Related

[Q] How to turn off 4g/3g speed?

Hi everyone, is it possible to turn off the 4g/3g for some battery saving? i have the stock rom, couldn't find the option anywhere! Thanks!
ayyada said:
Hi everyone, is it possible to turn off the 4g/3g for some battery saving? i have the stock rom, couldn't find the option anywhere! Thanks!
Click to expand...
Click to collapse
Not there, another AT&T disabled feature.
i see... thx...
man... Att sux!!!!
So you can't turn off data.... if you just want to use wifi at home for example?
metaldood said:
So you can't turn off data.... if you just want to use wifi at home for example?
Click to expand...
Click to collapse
You can turn data on and off. There is actually an HTC widget that toggles data on and off.
Go to the market there is an app that you can use to toggle on stock rom. Just search 3G.
Sent from my Desire HD using XDA App
try *#*#4636#*#*
any1 have a shortcut or app for it?
Just uncheck "Mobile Network" under Wireless and Network in Settings.
I'm pretty sure my 3g/4g has yet to be turned on lol
Sent from my Desire HD using XDA App
I found a way to turn off 3g/4g and have Edge enabled by going to Settings > Wireless & Networks > Mobile Networks > Network Mode > here you can toggle from WCDMA Only; GSM Only; GSM/WCDMA Auto (default). Selecting GSM Only switching my connection to Edge. How can we create a shortcut/toggle for this option?
invione said:
I found a way to turn off 3g/4g and have Edge enabled by going to Settings > Wireless & Networks > Mobile Networks > Network Mode > here you can toggle from WCDMA Only; GSM Only; GSM/WCDMA Auto (default). Selecting GSM Only switching my connection to Edge. How can we create a shortcut/toggle for this option?
Click to expand...
Click to collapse
There is no such option on the Inspire 4g.
*#*#4636#*#* is the option. Dial it. Go to phone. Scroll down. Select gsm only.
sugardaddy1979 said:
*#*#4636#*#* is the option. Dial it. Go to phone. Scroll down. Select gsm only.
Click to expand...
Click to collapse
Does it really work ?
Yes. I use it to keep mine on gsm. I also used the stock widget to keep data turned off
Turning off 4G speed is easy. Turn on the phone, it doesn't exist
Sorry, couldn't resist.
Sent from Desire HD or Inspire 4G or whatever this thing is called via premium XDA app.
good one
in cm7 theres a widget where you can turn off 3g and switch to 2g, is included in the power settings widget, any chance on getting it while using sense?
How do you turn off something that has not even been turned on?
calin75 said:
How do you turn off something that has not even been turned on?
Click to expand...
Click to collapse
See my post a couple of posts above
Sent from Desire HD or Inspire 4G or whatever this thing is called via premium XDA app.
Using: *#*#4636#*#*
Then selecting GSM does not work for me..still reverts back to 3G "H+)
Any other suggestions? Do I have to root to get access to all the grayed out network options?
Thanks

lock your infuse to cdma

Dial *#*#4636#*#* go into phone information scroll down and choose wcdma only and your done default is GSM/WCDMA auto (PRL)
samsungcaptivates said:
Dial *#*#4636#*#* go into phone information scroll down and choose wcdma only and your done default is GSM/WCDMA auto (PRL)
Click to expand...
Click to collapse
please excuse my ignorance, but what would be the purpose of this?
so that it dosent jump around from 3g 2g if its auto and your not using data it automatically defaults to 2g i think to save battery then switches to 3g oir hsdpa 3.5g or what att calls 4g on demand this keeps it locked on wcdma or 4g to my knowledge
samsungcaptivates said:
so that it dosent jump around from 3g 2g if its auto and your not using data it automatically defaults to 2g i think to save battery then switches to 3g oir hsdpa 3.5g or what att calls 4g on demand this keeps it locked on wcdma or 4g to my knowledge
Click to expand...
Click to collapse
seems like it reverts back to auto after a reboot
This makes the phone work on Verizon, right?
MikeyMike01 said:
This makes the phone work on Verizon, right?
Click to expand...
Click to collapse
See that's what I thought too. ATT = GSM, Verizon/Sprint = CDMA.
kwaalude said:
seems like it reverts back to auto after a reboot
Click to expand...
Click to collapse
Mine goes back to auto as soon as I back out of the menu. Am I doing something wrong by using the back button?
wouldn't this, by locking it, render the phone useless when traveling out of area that support that network?
MikeyMike01 said:
This makes the phone work on Verizon, right?
Click to expand...
Click to collapse
roflmao 10char
vbanh said:
Mine goes back to auto as soon as I back out of the menu. Am I doing something wrong by using the back button?
Click to expand...
Click to collapse
Mine does the same thing. did you figure out how to do it? I have been trying but I couldn't do it
I found this here in the forum someone posted and it worked for me thanks for him.
champoux said:
Here's an alternate method I puzzled out (and then afterward discovered it was already posted in thread 751237. It's a bit faster and has the advantage of surviving flight mode; still gets reset upon restart.
Dial *#*#2263#*#* (mnemonic: *#*#BAND#*#*).
This brings up the Band selection menu which you can also access from the above method by dialing *#*#197328640#*#* then going into DEBUG SCREEN > PHONE CONTROL > NETWORK CONTROL.
Select [3] GSM BAND
Select [1] GSM ALL
Select "Select GSM All Bands"
Menu key > END
To switch back, go to *#*#2263#*#* and select [1] AUTOMATIC > Select GSM &WCDMA All Bands > Menu key > END.
Something else I'm trying out is switching the acquisition order so when it is in "dual" mode, it'll try GSM first. Even so, it will still switch to 3g if there's enough signal. Seems to help keep it on 2G though, when it would otherwise cling to a faint 3g signal with 0-1 bars.
To do that, go into the NETWORK CONTROL menu (see above) then
Select [4] AQUISITION ORDER (yes they misspelled it)
Select [2] GSM->UMTS
Select "Select ACQ_ORDER_GSM_FIRST" (at least they abbreviated it correctly)
Menu key > END
This option does not get reset upon phone restart.
Click to expand...
Click to collapse
I did this and now my sms or text messaging don't work help
I had this happen too, but I didn't use the above method. Don't know what happened, but when I checked message settings, I had no number under "Message Center" did a quick google search and found an ATT number "+13123149810"...now it works again.
Did u call the number
Never mind i fixed it.but now in my network type it says umts is that faster then hsdpa and are there any other number sequences i can use to tweak my phone
I'm getting RAT restricted, which I got on my Vibrant but never my Captivate...
How can I change to show the different bands?
Sent from my Samsung Infuse 4G
wcdma and cdma have nothing to do with each other. wcdma is also known as umts, the base part of 3g (and 4g when hspa+). hspa is a protocol that runs on top of this cell technology providing higher data speeds. gprs (known as edge, and some times called gsm) is 2g. you can turn one or another off so the phone does not seek and connect to both services, which could save battery life. even though ive yet to see my phone find less than 3g/4g in houston, i still dont turn it off, just in case.
The Jack of Clubs said:
wcdma and cdma have nothing to do with each other. wcdma is also known as umts, the base part of 3g (and 4g when hspa+). hspa is a protocol that runs on top of this cell technology providing higher data speeds. gprs (known as edge, and some times called gsm) is 2g. you can turn one or another off so the phone does not seek and connect to both services, which could save battery life. even though ive yet to see my phone find less than 3g/4g in houston, i still dont turn it off, just in case.
Click to expand...
Click to collapse
Thanks, John Madden.

[Q] No 3G on Latest Miui

Hi all,
I'm new to the Nexus S 4G root scene. I just flashed Miui yesterday, and I am getting no 3G. I couldn't find anyone else that was having this issue.
Everything else works, and I get 1x data, but not 3G. It's not the location because stock gets me full 3G service in the same location.
I flashed this kernel: http://www.peteralfonso.com/2011/08/download-nexus-s-263514-kernel.html?spref=tw
but it didn't fix anything.
Thanks for your help
Edit: After going out with my phone, I realized I do in fact have 3G reception, but it's very poor and constantly switches between 3G and 1x. I normally have very good reception with stock Android in my area. It doesn't stay connected to 3G for more than a few seconds at a time and switches back and forth between 3G and 1x
Have you set up the phone to use 3G at all?
Go to Settings, and find Mobile Network settings, and there should be one box that says something like 2g only.
You probably know what to do from there on.
dario3040 said:
Have you set up the phone to use 3G at all?
Go to Settings, and find Mobile Network settings, and there should be one box that says something like 2g only.
You probably know what to do from there on.
Click to expand...
Click to collapse
Under "Mobile Network Settings" there is no option for that. Only "Data Enabled" which is turned to "on"
Mikooster said:
Under "Mobile Network Settings" there is no option for that. Only "Data Enabled" which is turned to "on"
Click to expand...
Click to collapse
It says: Network type selection.
dario3040 said:
It says: Network type selection.
Click to expand...
Click to collapse
Thanks for your help.
Maybe I'm just being dumb, but it's not there.
Settings > System > Mobile Network Settings
there are 4 choices:
Data Enabled (on), Always receive MMS (on), Data roaming (off), and System Select (automatic)
After going out with my phone, I realized I do in fact have 3G reception, but it's very poor and constantly switches between 3G and 1x. I normally have very good reception with stock Android in my area

[Q] Network preferred type

Hello,
I have a Moto G with Android 4.3 and i want to change the network type preferred, but i didnt found this option, i always used the command *#*#4636#*#* and change to "WCDMA Only" in my old phone (Samsung galaxy y duos, Android 2.3.6).
My data acess always oscillates between 2g and 3g, there is other way to force connection only at 3g ?
Thank you guys
I also wanna know that
Sent from my Moto G using Tapatalk
"WCDMA Only" should force it to be 3g only. That's on every phone I've had, and it works.
Sent from my Nexus 4 using Tapatalk
pnut22r said:
"WCDMA Only" should force it to be 3g only. That's on every phone I've had, and it works.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Ok but what we are trying to figure out it's where we can find this option
Sent from my Moto G using Tapatalk
Try this https://play.google.com/store/apps/details?id=de.mangelow.network
Sent from my Nexus 4 using Tapatalk
pnut22r said:
Try this https://play.google.com/store/apps/details?id=de.mangelow.network
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
I tried. I downloaded but I don't know where to go in this app. I can't find the options or the menu to change to wcdma only. Can you please do a dummy tutorial for me?
Seriously I've stared this app for hours and still no clue
Sent from my Moto G using Tapatalk
Oh, when you open the app, it's supposed to take you to the menu that you were taking about.
Look and I'm the general or q&a thread, there is another topic about this. Some people are saying theirs are locked from this menu unless they do something else. If I find a link, I'll send it over
Sent from my Nexus 4 using Tapatalk
pnut22r said:
Oh, when you open the app, it's supposed to take you to the menu that you were taking about.
Look and I'm the general or q&a thread, there is another topic about this. Some people are saying theirs are locked from this menu unless they do something else. If I find a link, I'll send it over
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Thanks. I'll appreciate it
Sent from my Moto G using Tapatalk
Allewar said:
I tried. I downloaded but I don't know where to go in this app. I can't find the options or the menu to change to wcdma only. Can you please do a dummy tutorial for me?
Seriously I've stared this app for hours and still no clue
Sent from my Moto G using Tapatalk
Click to expand...
Click to collapse
Seriously!?
Have you tried to see each option of the app?
I'm gonna try to help you: open the app, there's a menu. The first option should be "Phone Information", tap that.
So you have a lot of information about the radio, your chip, phone number, your provider, cellphone network and more...
Look for the option like "Set prefered network type" (or something like that. I'm trying to imagine how it's written in English, once here I use it in portuguese).
That option is a combobox with a lot of other options to choose. Always use:
"GSM only" (forces to use 2G, saves battery, you can also use that from Android Config Menu)
"WCDMA only" (forces to use 3G, speed up connection, but drains battery)
And "WCDMA prefered" (the phone always try to connect to 3G, but when it's not possible, it gets 2G).
The default option should be "GSM auto (PRL)". Similar to WCDMA prefered, but read this the see difference:
http://forum.xda-developers.com/showpost.php?p=6591742&postcount=2
Be very careful with the other options. CDMA is very different from WCDMA.
CDMA is a different 2G modulation and it's not compatible with GSM neither Moto G.
EvDO is used only in some countries and providers, google to learn about it.
And LTE is 4G connection. I don't know if Moto G radio support that.
Remember: try it in you own risk! I'm not responsable for any connection problems you get. And try not to change nor tap any other option in that menu.
I'm using this app here with any trouble.
Ok, I see this menu, I select my network preferred type but nothing happens...
Am I supposed to do something after select the network type I want?
I mean, the Phone is still changing to 2g...
I'm so frustrated with not being able to force wcdma =/
Problem solved.
Download and install Phone testing from play store.
Thank you guys =]
oogait said:
Problem solved.
Download and install Phone testing from play store.
Thank you guys =]
Click to expand...
Click to collapse
How is that I am the only one unable to make it work. I must be very dumb ....
Sent from my Moto G using Tapatalk
Allewar said:
How is that I am the only one unable to make it work. I must be very dumb ....
Sent from my Moto G using Tapatalk
Click to expand...
Click to collapse
I am on the same boat. The change I made in (*#*#4636#*#*) - WCDMA prefered - won't save. After each reboot/restart it goes back to GSM PRL.
My G isn't rooted or modified in any way, out of box state with few 3rd party apps.
Maybe is related to APN?
Network mode
HI Friends,
I like to use network preferred mode AUTO (3g/2g),
but from mobile network -> network mode there are only
two option that we can select either "2G" or "3G".
Some days back at first time when I opend this menu
neither of "2G" or "3G" was selected so It was working fine
with by defualt in auto mode.
But once I have selected this option now It is not possible to unselect both
2G as well as 3G and put phone back to auto network select mode.
Can anybody has work around for this.
I tried "Network" app as suggested but not useful for me.
hardikparty said:
HI Friends,
I like to use network preferred mode AUTO (3g/2g),
but from mobile network -> network mode there are only
two option that we can select either "2G" or "3G".
Some days back at first time when I opend this menu
neither of "2G" or "3G" was selected so It was working fine
with by defualt in auto mode.
But once I have selected this option now It is not possible to unselect both
2G as well as 3G and put phone back to auto network select mode.
Can anybody has work around for this.
I tried "Network" app as suggested but not useful for me.
Click to expand...
Click to collapse
Download phone testing by diewlandon playstore open app then go phone setting
hardikparty said:
HI Friends,
I like to use network preferred mode AUTO (3g/2g),
but from mobile network -> network mode there are only
two option that we can select either "2G" or "3G".
Some days back at first time when I opend this menu
neither of "2G" or "3G" was selected so It was working fine
with by defualt in auto mode.
But once I have selected this option now It is not possible to unselect both
2G as well as 3G and put phone back to auto network select mode.
Can anybody has work around for this.
I tried "Network" app as suggested but not useful for me.
Click to expand...
Click to collapse
In Settings > Apps you can reset app preferences which deselects 2g and 3g, but not sure it makes any difference. You lose any preferences you set for apps...
Thank You
serophia said:
Download phone testing by diewlandon playstore open app then go phone setting
Click to expand...
Click to collapse
Thank you very much !!! It is working with me !!!!

[Q] Cannot switch to 3G.

Hello everyone,
Previously I had the ROM "iXperia 8". There i could switch between 2G, 2G/3G & 3G easily just with a click. After I installed "PrimeHD", i do not have the 3G mode. I can switch between only 2G and 2G/3G modes.
Please help.
Dibakar Saha said:
Hello everyone,
Previously I had the ROM "iXperia 8". There i could switch between 2G, 2G/3G & 3G easily just with a click. After I installed "PrimeHD", i do not have the 3G mode. I can switch between only 2G and 2G/3G modes.
Please help.
Click to expand...
Click to collapse
Seems problem at "install PrimeHD".
Uninstall it or recover to previous status.
I believe you had backup before you install PrimeHD......
try dialing *#*#4636#*#* in the caller app (normal one) and it should bring up a testing menu.from there go into phone information and scroll to bottom. there should be a network mode drop-down list. pick something like "WCDMA only"
The Jinxer said:
try dialing *#*#4636#*#* in the caller app (normal one) and it should bring up a testing menu.from there go into phone information and scroll to bottom. there should be a network mode drop-down list. pick something like "WCDMA only"
Click to expand...
Click to collapse
Thanks it worked. But do you know what are the other options for?
I have another solution to the problem myself.
Go to Home-->Press menu button-->Add-->Widgets-->Power Control-->Check the button "2G/3G"(You may uncheck all other buttons,up to you)-->
Scroll down till you see "Choose Network Modes"-->Click the button right below it--> Click on "2G/3G Only/3G+2G"-->Move to top and click OK.
A new widget will now appear on the home. Here you can switch your network modes between 2G or 3G or 2G/3G.
Which options? The SMC check (i think) and others? That is beyond the scope of my knowledge

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