Database Info

[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.

[Q] WanHu ROM 2G/3G switching?

So I finally jumped in and got the WanHu ROM installed with M's v5 patch. This thing is really nice now, hopefully it will stay that way even after I reinstall some of my apps.
One thing that I've noticed is that the ability to use only 2G networks is gone. It used to be an option under Settings » Wireless controls » Mobile networks. Any chance that may be coming back?
I know some people would probably think I'm crazy to be asking that, but in my experience the batter life was pretty much double that of what I was getting on 3G, so I'd use that mode sometimes.
Thanks for all the good work on the WanHu ROM.

You can turn off the 3g at Settings >> Wireless networks >> Data Network settings & there is also a 3g widget.

Hi,
At this point you only turn data on or off. You cannot switch from 3g to 2g.
I would like to have this feature to, because the radio at my work is very poor and the battery last much longer in 2g.
Sent from my XT720 using XDA App

switch 2g , 3g, and 2g/3g
if i have to change the default network setting (3, which mean 3g/2g auto), i can from here:
1. from the dialpad dial *#*#4636#*#*
2. from the popued menu, choose Phone Information
3. from "Set preffered network type" You can choose several options including:
"GSM auto (PRL)" (this is usually default and means 3g and failback to 2g, depending on signal
"WCDMA prefered" (this mean 3g and if there is no 3g, then 2g), this settings seems to wotk, but if you exit and return to the same menu it is changed
"WCDMA only" 3g only
"GMS only" 2g only
hope that helps.
p.s. I use Battery monitor application, which has shortcut to the Phone Information menu.

peshovec said:
if i have to change the default network setting (3, which mean 3g/2g auto), i can from here:
1. from the dialpad dial *#*#4636#*#*
2. from the popued menu, choose Phone Information
3. from "Set preffered network type" You can choose several options including:
"GSM auto (PRL)" (this is usually default and means 3g and failback to 2g, depending on signal
"WCDMA prefered" (this mean 3g and if there is no 3g, then 2g), this settings seems to wotk, but if you exit and return to the same menu it is changed
"WCDMA only" 3g only
"GMS only" 2g only
hope that helps.
p.s. I use Battery monitor application, which has shortcut to the Phone Information menu.
Click to expand...
Click to collapse
Thanks for the reply. I was messing around in those menus and could not find a "GSM only" mode on my phone. I will look again, but all I remember were an "auto" mode, a "3g only" mode, and a bunch of CDMA stuff (which doesn't apply to our phones).
But I will look again and try out the battery monitor application program as that would be nicer than typing the key sequence everytime.
And just to expand my (rather small) knowledge of the android OS. The option to select only 2G under Settings » Wireless controls » Mobile networks, is that a framework thing that has to be added?
-J

[Q] Network Mode

Hello,
In the Setting/Network Mode, there is LTE/3G/2G selection and due to unavailable LTE on my area I would like to switch to 3G preferred.
Each time I chose 3G network, it will show "Change the network operating mode" in the Network Mode, if I choose either LTE or 2G it will stay as it is
I read from the forum, suggested using "*#*#*4636#*#*" >> phone info, choose WCDMA only, but it will reset back when phone is reboot.
Is there anyway to permanent this WCDMA mode even after reboot?
Thank you.

Nexus 5 Network Type Tests

I for one dont feel the need for LTE myself yet. Perhaps if im dling a large file or something i would want to use it, but my ever day activities that i use my phone for, 4G(HSPA) does just fine. So i decided to do some tests. The main reason i would turn off LTE and just use HSPA is id assume it saves battery. Ive come to this conclusion knowing LTE requires more phone power to hold the signal, and also the conclusion that when im on LTE, my phone signal is always significantly lower then when on HSPA. 1/2 bar vs 4/5bar normally.
How id normally turn off lte was using a shortcut to the Phone Info menu. Where you could change network modes. By default it is LTE/GSM Auto(Prl). I would normally set it to WCDMA Preferred to have it only use 4G(HSPA). However every reboot would reset that.
Until recently i found the Network Mode option within the settings menu. Wondering what the differences are side affects are, or if one mode affects the settings of another. So far ive found that the Network Mode and Phone Info modes are some what linked.
Network mode is under Mobile Network within the More Wireless Settings.
Phone Info via *#*#4636#*#*
Network Type via Settings > About phone > Status
Test #1
Set Network Mode: LTE (which in turn sets LTE/GSM Auto(Prl) if it was on anything else)
Set Phone Info Mode: LTE/GSM Auto(PRL)
Signal: 1Bar - 113db / 27asu
Network Type: LTE
Speedtest 1: 2.51 / 1.64
Speedtest 2: 2.21 / 1.80
Speedtest 3: 2.69 / 141
Set Network Mode: LTE
Set Phone Info Mode: WCDMA Preferred(i beleive doing this second, overrides the option set above, but it reverts it to LTE and LTE/GSM Auto(Prl) after reboot of phone)
Signal: 4Bars - 90db / 11asu
Network Type: HSPA\HSPA+
Speedtest 1: 2.25 / .45
Speedtest 2: 1.43 / .60
Speedtest 3: 2.08 / .42
Set Network Mode: 3G
Set Phone Info Mode: LTE/GSM Auto(PRL)
Signal: 4Bars - 91db / 11asu
Network Type: HSPA\HSPA+
Speedtest 1: 1.93 / .35
Speedtest 2: 1.55 / 1.04
Speedtest 3: 1.85 / 0.20
Set Network Mode: 3G
Set Phone Info Mode: WCDMA Preferred
Signal: 5Bars - 89db / 12asu
Network Type: HSPA\HSPA+
Speedtest 1: 2.03 / .45
Speedtest 2: 2.15 / .50
Speedtest 3: 2.20 / .55

Tried but in vain
when i am setting the Set Phone Info Mode to anything other than LTE/GSM Auto(PRL), it resets back to the default setting which is LTE/GSM Auto(PRL) as soon as i exit the phone information screen.

ever since I updated to CM13 network type LTE and 3G don't work oneplus one

Hello All, ever since I updated to CM13 on my oneplus one,first with official snapshot and now even nightly, I may only get network connection on 2g. LTE and 3G don't work. I tried this but it didn't help.
Fix for LTE not working on OnePlus One
Step-1: Go to Settings>> Mobile Network>> Access point name>> Restore defaults. The list should have several options for APNs, select the correct APN. Now go to Settings>> Mobile Networks>> Network operators, then click Choose automatically. Turn Aeroplane Mode on and off again. Ensure that you are connected to Wi-Fi
Step-2: Restart your phone
Step-3: Go to Phone and dial *#*#4636#*#* and choose Phone information. Set the Preferred Network Type to LTE/GSM auto (PRL). Turn off the radio and turn it on again. Go to the SMSC and click Refresh>> Update.
Can anyone help in please?