CM 10.1.2 2g jumps to 3g problem - Galaxy S I9000 Q&A, Help & Troubleshooting

Hi
all fine on CM10.1.2, except the fact that I want to use 2g only for battery saving, and after switching to 2g only, the phone autoswitches back to 3g after a variable period of time (30 min - 1 hour). During this time, the phone is on 2g as required. I have factory resetted, formatted all the partitions, odin-ed android 2.3.6 and after that CM 10.1.2 from CWM; so all clear, but the problem with 2g/3g remains...
Any fixes please ?...
Thank you!

think you can change the settings in service mode, not sure what the code is... also you have to type it into the stock dialer to access it.

tnanks, but I want to manually and easy switch to 3g when I want. Anyway, I didn't find any working codes for secret menu...

goto "settings" then "wireless & networks" then "moble networks" then click on "use 2G network only" also select "GSM/UMTS Network preferences" and select "GSM only"

I don't find GSM/UTMS option... when I click 2G only, after a while it uncheck itself and switches back to 3G.
Sent from my ME173X using Tapatalk 4

I have temporary fixed it by using juicedefender. When not on wifi, it goes on 3G, so it's ok.
Sent from my ME173X using Tapatalk 4

try this app and set it to GSM only http://bit.ly/1caLSfU

Didn't work, but thankyou anyway... It seems that it works with android 4.3.
Sent from my ME173X using Tapatalk 4

Try downloading the latest release.. I think it has been fixed..
Sent from my GT-I9000 using xda app-developers app

Related

Does 2G work on Telus with Milestone?

I'm currently using CM 6.1.2 on my Milestone.
If I switch to 2G mode in the mobile network settings, I have no connection.
If I use the Toggle 2G app, it doesn't seem to really do anything. If I set 2G to use one of the options that don't disconnect me (WCDMA, CDMA or GSM 2g/3g) it still shows 3G in the status bar so I'm not sure what the point is in using the Toggle 2G app.
Wondering the same thing myself...
Does anyone knows the answer?
zeppelinrox said:
I'm currently using CM 6.1.2 on my Milestone.
If I switch to 2G mode in the mobile network settings, I have no connection.
If I use the Toggle 2G app, it doesn't seem to really do anything. If I set 2G to use one of the options that don't disconnect me (WCDMA, CDMA or GSM 2g/3g) it still shows 3G in the status bar so I'm not sure what the point is in using the Toggle 2G app.
Click to expand...
Click to collapse
I am not certain about this (i use rogers), but i believe that telus has no 2G (edge) network. They built a 3G only network just in time for the olympics to replace their cdma network:
So the toggler probably cant find a valid connection and retries 3G.
Manual mode cant find a network at all.
On rogers, i can fallback to 2g. This is normal according to what i think i know.
Sent from my Milestone using Tapatalk
thanks for the info.
That's what I thought so have given up on the idea of getting 2g to work
I guess when it comes to 3g and saving battery life, juice defender will have to do as it can turn off data when the screen is off but still have the phone working.
Well, I think I made some progress with this.
On my phone, I was also loosing the connection when switching from 3G to 2G but it's working now. I can get calls, it's only the data aver 2G that doesn't work now.
I have the Cronos rom on my phone, I can tell you what I did if you're interested.
Yes please do.
If it works on cm6 then at least I can also save juice by not using juice defender... oh the irony... lol
edit: hey look at all them Canadian flags, eh?!
Sent from my Milestone using Tapatalk
Took me a lot of time to find the right switches combination.
Anyway, I have Toggle 2G auto managing the 2G/3G and for the bottom 2 options:
2G network: WCDMA preferred (3G/2G)
3G network: GSM auto (PRL)(2G/3G)
If I check under Setting/About/Phone/Status, I see written mobile network type UMTS.
Hmm... I had those 2 settings reversed when using toggly2g
I will try that.
Right now, my mobile network type shows up as HSPA.
Your post prompted me to find the difference and came up with these 2 useful pages just before my head exploded.
Awesome thread: http://www.howardforums.com/showthread.php/1600012-HSPA-vs.-UMTS
Handy chart at the bottom of http://en.wikipedia.org/wiki/Universal_Mobile_Telecommunications_System
s0ulreaver said:
Well, I think I made some progress with this.
On my phone, I was also loosing the connection when switching from 3G to 2G but it's working now. I can get calls, it's only the data aver 2G that doesn't work now.
I have the Cronos rom on my phone, I can tell you what I did if you're interested.
Click to expand...
Click to collapse
Is this not the same then as just shutting off data?
Caz666 said:
Is this not the same then as just shutting off data?
Click to expand...
Click to collapse
Not sure but I don't think so. You can turn off the data but have the phone connected to the 3G network, right?
I think you could get data over 2G but it's just very slow, right?
With Telus I don't think they allow data over 2G.
zeppelinrox, I wonder why yours shows like this, what do you have active under those settings?
What ROMs are you guys using?
zeppelinrox said:
Hmm... I had those 2 settings reversed when using toggly2g
I will try that.
Right now, my mobile network type shows up as HSPA.
Your post prompted me to find the difference and came up with these 2 useful pages just before my head exploded.
Awesome thread: http://www.howardforums.com/showthread.php/1600012-HSPA-vs.-UMTS
Handy chart at the bottom of http://en.wikipedia.org/wiki/Universal_Mobile_Telecommunications_System
Click to expand...
Click to collapse
When I'm on 2G it shows as UMTS
With 3G (mobile data enabled) I see it alternating from 3G/UMTS to H/HSPA.
I'm on CM6.
My phone always shows HSPA except if I set it to use 2G then it shows GPRS - which is when I have no data and no phone signal.
I did use the Telus baseband file in AOR though... I wonder how it will behave if I use the Canada baseband....
Also, here's a neat trick....
dial *#*#4636#*#*
A Testing App will show up....
Select Phone Information and then goto the bottom.
You can set your preferred Network type.
Ok so that listbox shows all the different options.
The only options that will save are:
GSM only (2g - I get nothing - shows as GPRS)
WCDMA only (3g - shows as HSPA)
GSM auto (PRL) - (3g - shows as HSPA as well)
All the other options either are not selectable or just revert back to GSM auto (as is the case with WCDMA preferred)
I just did a few speed tests and I seem to get faster speeds with GSM auto than I do with WCDMA only
Gonna try that Canada baseband now....
Edit: Same thing. Except the speed test is slower for both WCDMA and GSM autio so best off using the Telus baseband.
The dial trick doesn't work. I dial the sequence as a phone number, right?
It disappears then nothing changes.
ah.. yeah sometimes it takes 2 or 3 tries...
do you use adw launcher?
If so, you can actually create a shortcut for it... I figured it out today.
1 Press and hold on homescreen and select Custom shortcut
2 Press "Pick your activity"
3 Select the second item on the list ie. Activities (with the ADW icon)
4 Wait for all stuff to load, scroll down to Settings, and press the arrow next to it to see the long list of activites that Settings.apk can do.
5 Scroll down near the end of the list, you will see Testing(.TestingSettings)
6. Select that and press OK on the next window.
I also made one for Battery History, which is actually part of the Testing app but is usually only accessible through Spare Parts.
I still can't get the trick to work... doesn't do anything on my phone
Right now I'm on the 2501 rom (latest 2.2.1 from Motorola) and I can say it's the best I've tested so far!
Outstanding battery life!
I found another way to run Testing App.
With Google gesture search you can set it to launch Settings actions
Let it scan and then write "testing" on the screen
Edit: oh crap I mistyped the code.
Its *#*#4636#*#*
I had 4536 before so I fixed it
Sent from my Milestone using Tapatalk
zeppelinrox said:
I'm currently using CM 6.1.2 on my Milestone.
If I switch to 2G mode in the mobile network settings, I have no connection.
If I use the Toggle 2G app, it doesn't seem to really do anything. If I set 2G to use one of the options that don't disconnect me (WCDMA, CDMA or GSM 2g/3g) it still shows 3G in the status bar so I'm not sure what the point is in using the Toggle 2G app.
Click to expand...
Click to collapse
Well, after doing some more tests and trying different apps (2G/3G switchers) I can say those apps work only if your cell phone company has both 2G/3G network.
In Montreal, only Rogers has both.
Easy to test (btw: I'm using the FroyoMOD rom): go in "Settings" -> "Wireless & Networks" -> "Mobile Network Settings" and check "Use only 2G networks".
See if your cell phone company is listed when you do a search under "Network Operators". If it's not, don't bother using a 2G/3G switcher.
When doing this, in Montreal I see only Rogers listed. If I uncheck "Use only 2G networks" I see all 3 of them: Bell, Telus and Rogers.
Hope this helps!

Network option on O2x

after flashin cm7. I can see there are more option on network.
1) GSM/WCDMA AUTO
2) ONLY WCDMA
3) ONLY GSM
4) GSM/WCDMA(WCDMA PREF)
Also. there is a option of "Only using 2G network", is this same as "ONLY GSM"??
which option will u prefer and have a balance between networking speed and battery??
Thx
Use only GSM if you wanna save battery.
Sent from my LG-P990 using XDA Premium App
That part is very bugy depending on what bb/ril one uses.
With most combinations 2g only resets on reboot.
With some when enabling 2g it automaticly switches to gsm only (i guess thats how its supposed to work..)
With others 2g is greyed out when not in gsm only...
And so on...
At some point i lost track of all the different combinations...
The only bb for me was 218 that switched the mode when enabling 2g only and did not reset on reboot. So you probably have to see which bb works for you, but then there is that thing with battery drain, call qualit and wrong timezone, so sacrificing one for an other might reduce choices....
Sent from my HTC Wildfire using XDA

Can't force 3g on .2233

I am in a fringe 4g area where I don't have a really good signal, so I want to force to 3g but the option for preferred networks is grayed out. Anyone else have this problem?
Sent from my DROID BIONIC using xda app-developers app
I tried as well.... No dice
Sent from my DROID BIONIC using xda app-developers app
I was able to install LTE onOff from the market, but I should be able to do it in the system settings.
Go to the Dialer, type *#*#4636#*#* and then go to Phone Information. In the lower half of that screen you'll get every network option you could ask for. Go "CDMA Only" for 2G data only and choose "CDMA Auto (PRL)" for 3G
Thanks for that, buy we used to be able to switch between 3g/cdma and LTE in the settings menu. I am just trying to figure out if it is an unfinished part of the leak or something permanent of ics.

[Q] Why the 3G doesn't work

Hello.
Hello.
I am currently using the The Ultimate ROM, when active data I always get in the notification bar E data, but when I activate the 3G signal dies completely:crying:, I mean to activate 3G data not working. That is problem with your machine or ROM?
jualmarxkh said:
Hello.
Hello.
I am currently using the The Ultimate ROM, when active data I always get in the notification bar E data, but when I activate the 3G signal dies completely:crying:, I mean to activate 3G data not working. That is problem with your machine or ROM?
Click to expand...
Click to collapse
...3G works fine for me :S
Go to setting and disable 2G networks
Check your APN settings and make sure they're correct, my friend on the Ultimatum has no problems with his 3G so it may be that your APNs aren't set up correctly
Sent from my GT-P7510 using Tapatalk HD
Check your GPRS settings.
Sent from my octa-core, badboy S4 using the new Tapatalk 4 Beta
Wanna discover some awesome new apps? Check this out - http://forum.xda-developers.com/showthread.php?t=2322687
1 - type *#*#4636#*#* in your dialer
2 - choose "phone information"
3 - turn off radio
4 - set preferred network type to GSM only
5 - turn on radio
if it doesn't work, try do follow these same steps and updating/refreshing your SMSC
HIT THANKS IF I HELPED :good:

3g netwirk

I would like my phone to be connected to 3g all the time in order to save battery... Is there any way to do this? Changing to gsm, CDMA in network settings still gives me hspa.
Thnx
Sent from my One using XDA Premium HD app
EnIXmA said:
I would like my phone to be connected to 3g all the time in order to save battery... Is there any way to do this? Changing to gsm, CDMA in network settings still gives me hspa.
Thnx
Sent from my One using XDA Premium HD app
Click to expand...
Click to collapse
HSPA is still 3G. If you want you can select to use GSM only and you will only get EDGE connectivity.
Dial *#*#4636#*#* , go to phone information, and there's a dropdown which by default says WCDMA preferred. Switch that to whatever else you need. Also, remember that this setting does not stick after reboot so you need to reset it to your preference each time after you reboot your phone.
Misread, sorry.

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