3G problem - Galaxy S I9000 Q&A, Help & Troubleshooting

I have a problem with my rooted SGS. The network keeps changing to EDGE and 3G. Is there anyway to keep it on 3G only?
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open the dialer and enter the phone code:
*#*#197328640#*#* (service mode)
and then navigate to the band selection menu
(1: debug, 8: phone control, 7:network control, 2:band selection)
select wcdma band only (instead of automatic)

Thanks alot PatcheZ. That solved the problem
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Related

How can I turn off 3G and use just 2G? SOLVED

Hey everyone,
I've had my Galaxy a few days now and I noticed there's no obvious option to turn off 3G like there was on my old Topaz.
Does anyone know if it's possible to turn off 3G (not data connection, I still want to use 2G) to save battery life.
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Go to settings > wireless and networks > mobile networks > use only 2g. The option is there.
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Cicinho said:
Go to settings > wireless and networks > mobile networks > use only 2g. The option is there.
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Click to expand...
Click to collapse
Erm, that option isn't there, all it says in mobile networks is:
Data Roaming
Access Point Names
Network Mode (this is only GSM/WCDMA switching)
Network Operator
I bought my phone as handset only so there's no branding and is rooted (option wasn't there before rooting either).
Can anyone help? Is there an app that can help?
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My options changed when I upgraded to the newest firmware available in Australia. GSM is 2G and WSDM is 3G.
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StuBouyer said:
My options changed when I upgraded to the newest firmware available in Australia. GSM is 2G and WSDM is 3G.
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Click to expand...
Click to collapse
Thank you for this, I'll test it now
EDIT: Worked a dream, thanks
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I downloaded an app/widget from the market called DCSwitch ... it allowed me to disable/enable my HSDPA radio with the touch of single button on my homescreen.

[Q] Stop network auto select.

Hey people.
Had a question for the smart people that live here.
When I am at home on the couch or downstairs in the computer room.i have very low signal or no signal. If I restart my phone I can see the signal bars go from full to none. My phone picks up a faint signal from hspa network (bell network) and keeps going from 3G to hspa. Before I had the galaxy s I had the touch pro on just the 3G network and did not have problems like this.
Does anyone know of a way that I could lock the galaxy s into the 3G network? I tried going to settings» network» mobile network and selecting one of the bell networks but gives me the error that i am not allowed to select the network, it will automatically choose it for me.
Running eclair,UGJH2
Thanks in advance for any help.
B.
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try dial this:
*#*#4636#*#*
there are some setting that you can play with there and good luck.
Thank you.
How do I save now though?
I selecting cdma but when I'm out of that setting then I have no where to save.
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How do you set the radio band(eg850) on MIUI roms

On MIUI the phone app doesnt have *#2263# menu to set the radio band
Can someone tell me how to actually set the radio band to 850mhz..
In settings selecting 3G Only just results in No data connection.........
Afaik if you have 850 enabled before flashing MIUI, it will stay enabled.
There is no way to change the band from within MIUI/CM7.
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[Q] LTE-only Mode

Hi everyone.
I'm having some issues related to the mobile operator signal (CLARO BR).
The I9305-T only have the LTE option associated to the the other type of frequencies (LTE/GSM/HSPA).
Is there anyway in which I can choose a "LTE-ONLY" frequency?
My phone is rooted and the ROM is Samsung original (odexed).
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ov3r said:
Hi everyone.
I'm having some issues related to the mobile operator signal (CLARO BR).
The I9305-T only have the LTE option associated to the the other type of frequencies (LTE/GSM/HSPA).
Is there anyway in which I can choose a "LTE-ONLY" frequency?
My phone is rooted and the ROM is Samsung original (odexed).
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Click to expand...
Click to collapse
1st of all, no such option yet. 2nd, the option is not practical as there is no place in the earth that have full coverage of lte network now. So if you do have such option to choose only lte network , you will find that you will always be disconnected when you enter some area that don't have lte network
I asked that because I have Lte coverage at work and at home.
Elsewhere in my city, the usual coverage is the H+.
I thought there was an app, a kind of a switcher, which would only work on rooted phones.
Anyway, thanks bro.
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Settings, under networks, more, mobile networks, network mode and select wcdma + LTE . Its the closest you'll get for the moment and beware LTE is a battery hog.
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ov3r said:
Hi everyone.
I'm having some issues related to the mobile operator signal (CLARO BR).
The I9305-T only have the LTE option associated to the the other type of frequencies (LTE/GSM/HSPA).
Is there anyway in which I can choose a "LTE-ONLY" frequency?
My phone is rooted and the ROM is Samsung original (odexed).
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Click to expand...
Click to collapse
Go to the engineering menu (type *#197328640# inside the phone.)
There go to [1] UMTS, [1] DEBUG SCREEN, [8] PHONE CONTROL, [7] NETWORK CONTROL, [2] BAND SELECTION, [4] LTE Band Preference, [5] LTE ALL
Note, that you will lose all non-LTE connection after this, and this option is saved, and not reset during a reboot! You will not be able to call anyone, but you will be able to use LTE speeds properly!
To go back open engineering menu again.
Then [1] UMTS, [1] DEBUG SCREEN, [8] PHONE CONTROL, [7] NETWORK CONTROL, [2] BAND SELECTION, [1] Automatic, [1] Automatic
No root access needed for this, works with all Samsung and Samsung based ROMs. Don't know whether it works with CM.
Use with care! As I've said you will lose access to non-LTE bands after the change until you reset it! A reboot or a firmware upgrade will not reset it! (Reflashing the modem firmware will however)
Thanks for your help!
I found this engineering menu and it worked fine. That's what I wanted!
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CM 10.1.2 2g jumps to 3g problem

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.
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I have temporary fixed it by using juicedefender. When not on wifi, it goes on 3G, so it's ok.
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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.
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Try downloading the latest release.. I think it has been fixed..
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