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[Q] "GSM only" setting

I need some help modifying a Froyo rom to include a "GSM only" setting.
The background is that under certain conditions (i.e. intermittently), the cell radio shows full connection, but will not allow calls, incoming or outgoing. I finally narrowed a workable solution down to forcing "GSM only" (vs. auto selection of CDMA and GSM networks). But I can only get there at the moment by adding the "Phone info" custom shortcut to my home screen (ADW Launcher) and going in and setting it manually. And unfortunately that doesn't always survive a reboot either.
I would like to simply pre-set that in the rom and not have to re-set it again. I had assumed it was something that could be done in one of the init or prop file, but I have thus far not been successful in finding information about where and how to do that.
Any help would be appreciated.

Solved. For anyone else who stumbles upon this question, the setting in build.prop is:
ro.telephony.default_network=#
Where the # is a number code for which setting you want. In my experimentation for my device, "ro.telephony.default_network=0" is WCDMA preferred and ro.telephony.default_network=1 is GSM only.
I "think" the other codes are as follows (but I can not confirm this):
0 WCDMA preferred
1 GSM only
2 WCDMA only
3 GSM auto (PRL)
4 CDMA auto (PRL)
5 CDMA only
6 EvDo only
7 GSM/CDMA auto (PRL)
8 Unknown
Additionally, if you want to set it temporarily while the phone is running, you can launch the phone info settings by entering this on your phone's keypad:
*#*#4636#*#*
But I believe it will revert to whatever you have in build.prop at the next reboot. No matter what you set in build.prop, you can still go into your Wireless & network settings, Mobile networks, and click on or off the "Use only 2G networks" setting.

Infuse won't stay at WCDMA Only

Hi guys
I need my phone to stay always @ wcdma only
So..
I did *#*#4696#*#*
Set it to WCDMA Only , but it's not saved ...
it comes back to GSM/WCDMA auto (PRL)
I also tried *#2263# (as I did sometimes with my captivate)
But again , with no luck .. I can't lock it at that specific frequency
any clue , someone ?
ps.
TIA

Which band type?

Hi,
after *#*#4636#*#* I entered telephone info and now I'm wondering which band setting would be right/best one for Germany?
Options are GSM only, CDMA only, GSM prefered (prl), CDMA prefered (prl), GSM/CDMA auto (prl), EvDo, WCDMA auto, WCDMA prefered (prl)
Atm it's set to GSM/CDMA auto (prl)
// please move if it's in the wrong section

[Q] Force 2G Radio only on Sensation Sense Roms

All Sense Roms that I have come across Do not let you Switch between 4G/3G to 2G, This is only possible as far as im concerned on CM or MIUI (Like when you go to Wireless settings>Mobile Networks>2G only) has anybody found a solution to this???

You can, its just worded differently. Go to settings, wireless, mobile network settings, netowrk type and select GSM. GSM/wcdma auto is automatic switching, wcdma is 3g only, GSM is 2g.
Sent from my Sensation

MusicMan374 said:
You can, its just worded differently. Go to settings, wireless, mobile network settings, netowrk type and select GSM. GSM/wcdma auto is automatic switching, wcdma is 3g only, GSM is 2g.
Sent from my Sensation
Click to expand...
Click to collapse
Thank you kind sir.....

[Q] Preferred network type CM10.1

In CM 10.1, going into *#*#4646#*#*, by default the network type is always WCDMA preferred. I want to make it permanently stay on WCDMA only or GSM Auto (PRL), but this setting never seens to persist across reboots.
I know it used to stick in CM7, but ever since CM9 I haven't found a way to make it stick.
Anyone know how?

djsubtronic said:
In CM 10.1, going into *#*#4646#*#*, by default the network type is always WCDMA preferred. I want to make it permanently stay on WCDMA only or GSM Auto (PRL), but this setting never seens to persist across reboots.
I know it used to stick in CM7, but ever since CM9 I haven't found a way to make it stick.
Anyone know how?
Click to expand...
Click to collapse
I think "WCDMA preferred" is the best one/most stable one.
because if you select "wcdma only", you will have no data connection when you have lower signal.
with "wcdma preferred" it change to the 2g network to keep your data connection connected (lol), so you wont get any data interruptions
Back to your question:
I have no idea

NQNH said:
I think "WCDMA preferred" is the best one/most stable one.
because if you select "wcdma only", you will have no data connection when you have lower signal.
with "wcdma preferred" it change to the 2g network to keep your data connection connected (lol), so you wont get any data interruptions
Back to your question:
I have no idea
Click to expand...
Click to collapse
What you described is exactly what GSM Auto (PRL) does, except GSM Auto (PRL) uses a pre defined list to choose which setting, rather than WCDMA preferred which constantly pings around to find the best connection at the expense of battery.
Where I live there is full HSPAP coverage, that's why I don't really care about 2G, and by keeping it on WCDMA only I will save battery compared to WCDMA preferred.
But I have still not been able to find a way for the setting to stick. I even tried editing the default connection property in build.prop but that didn't seem to work either.

djsubtronic said:
What you described is exactly what GSM Auto (PRL) does, except GSM Auto (PRL) uses a pre defined list to choose which setting, rather than WCDMA preferred which constantly pings around to find the best connection at the expense of battery.
Where I live there is full HSPAP coverage, that's why I don't really care about 2G, and by keeping it on WCDMA only I will save battery compared to WCDMA preferred.
But I have still not been able to find a way for the setting to stick. I even tried editing the default connection property in build.prop but that didn't seem to work either.
Click to expand...
Click to collapse
aaah okay, didnt know that with the battery