Hello all,
Today I upgraded to official cm13 (cm-13.0-20160420-NIGHTLY-Z00A), and then I found I'm unable to switch the network mode to LTE only in Testing (by dialing *#*#4636#*#*). It switched to LTE only for a little time, but after several seconds, it automatically switches back to WCDMA preferred.
I also wiped system,data, cache and did a fresh zip install, it still doesn't help.
This problem does not exist in cm12.
The LTE coverage here is not good, so forcing LTE mode is necessary.
So does anyone know how to keep my phone in LTE only mode with this cm13?
Thanks
Hi,
1. Try to input *#*#4636#*#* from the dialer app, select Phone information, change Set prefered network type to LTE only.
2. Create a custom profile on System Profiles, change Prefered network type to LTE (Recommended).
I'd recommend option one.
Sent from my ASUS_Z00A using XDA Labs
krasCGQ said:
Hi,
1. Try to input *#*#4636#*#* from the dialer app, select Phone information, change Set prefered network type to LTE only.
2. Create a custom profile on System Profiles, change Prefered network type to LTE (Recommended).
I'd recommend option one.
Sent from my ASUS_Z00A using XDA Labs
Click to expand...
Click to collapse
I did exactly the same thing. It only lasted several seconds and then automatically reverted back to WCDMA preferred.
I do have a LTE signal during the short duration. But I can't make it persistent.
oppop007 said:
I did exactly the same thing. It only lasted several seconds and then automatically reverted back to WCDMA preferred.
I do have a LTE signal during the short duration. But I can't make it persistent.
Click to expand...
Click to collapse
If you change it to LTE/GSM (auto PRL), does it revert back to WCDMA prefered?
Sent from my ASUS_Z00A using XDA Labs
krasCGQ said:
If you change it to LTE/GSM (auto PRL), does it revert back to WCDMA prefered?
Sent from my ASUS_Z00A using XDA Labs
Click to expand...
Click to collapse
It does.
I tried all network modes, and the results are all the same: automatically revert to WCDMA preferred after several seconds.
The interesting thing is: If I choose WCDMA only, it still will revert to WCDMA preferred. So I think this is an internal bug of the Android system and not related to the carrier.
oppop007 said:
It does.
I tried all network modes, and the results are all the same: automatically revert to WCDMA preferred after several seconds.
The interesting thing is: If I choose WCDMA only, it still will revert to WCDMA preferred. So I think this is an internal bug of the Android system and not related to the carrier.
Click to expand...
Click to collapse
Then, it would be CM13.0 bug.
Sent from my ASUS_Z00A using XDA Labs
Related
I've noticed in the menu options, there is an option to keep the phone in 2G mode only. On the other hand, is there any way to keep the phone in 3G / 3.5 / 4G mode? Any software that can do this?
hkalltheway said:
I've noticed in the menu options, there is an option to keep the phone in 2G mode only. On the other hand, is there any way to keep the phone in 3G / 3.5 / 4G mode? Any software that can do this?
Click to expand...
Click to collapse
The phone will only switch to 2G if faster speeds are not available. The 2G mode option allows you to prevent the phone from switching to faster (and more battery consuming) data connections....
From the dialer, you can type in *#*#4636#*#* to bring up some "secret" settings. From there you can configure your phone to only use 3G.
Sent from my Galaxy Nexus using Tapatalk
NPuter said:
The phone will only switch to 2G if faster speeds are not available. The 2G mode option allows you to prevent the phone from switching to faster (and more battery consuming) data connections....
Click to expand...
Click to collapse
How about if I don't want 2G at all and want it to stay 3G only, even if there is no signal? I remember this option on the SGS 2..
hkalltheway said:
How about if I don't want 2G at all and want it to stay 3G only, even if there is no signal? I remember this option on the SGS 2..
Click to expand...
Click to collapse
You do what chrono just said and the hidden menu let's you force 3g only. *#*#4636#*#* on the dial pad.
RogerPodacter said:
You do what chrono just said and the hidden menu let's you force 3g only. *#*#4636#*#* on the dial pad.
Click to expand...
Click to collapse
Doesn't stick all the time for some reason. Same with atrix. And other phones.
Sent from my Galaxy Nexus using xda premium
Chrono_Tata said:
From the dialer, you can type in *#*#4636#*#* to bring up some "secret" settings. From there you can configure your phone to only use 3G.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
What setting to change? I see phone information, battery information, etc..but no settings..any help please? Thanks!
hkalltheway said:
What setting to change? I see phone information, battery information, etc..but no settings..any help please? Thanks!
Click to expand...
Click to collapse
Go into phone info. From there if you scroll down a bit you will see a text that says something like "GSM/CDMA auto". Press that and you should get a drop down menu. Change the setting to "CDMA only". That should work.
Sent from my Galaxy Nexus using Tapatalk
Chrono_Tata said:
Go into phone info. From there if you scroll down a bit you will see a text that says something like "GSM/CDMA auto". Press that and you should get a drop down menu. Change the setting to "CDMA only". That should work.
Click to expand...
Click to collapse
Not sure how that disables 2G (1xRTT). Unless I'm mistaken, both 1xRTT (2G) and EVDO (3G) run on top of CDMA.
Also, you can get to this from settings->wireless & networks->More...->Mobile Networks->Network Mode
There you can select LTE/CDMA or CDMA.
And it always sticks
Hi guys I had to make a thread because I really don't know what's happening.
From stock I updated to the leaked ICS that came out in the spring. This is where I noticed I could not get lte.
I updated to cyanogen 9 and currently on 10.
I noticed that when I try changing networks from wcdma preferred to auto lte gsm it doesn't stick. It goes back to wcdma preferred even in *#*#4636#*#*... ohhh when I first flashed to the leaked ICS I had it set to wcdma preferred.
Why after I flash anything while on wcdma preferred It is unable to change or stick to any network? BTW even if I change it without exiting the screen I still can't get lte. Yes I'm in lte coverage and have the plan.
Please help thanks
Sent from my LG-P930 using xda app-developers app
nt1 said:
Hi guys I had to make a thread because I really don't know what's happening.
From stock I updated to the leaked ICS that came out in the spring. This is where I noticed I could not get lte.
I updated to cyanogen 9 and currently on 10.
I noticed that when I try changing networks from wcdma preferred to auto lte gsm it doesn't stick. It goes back to wcdma preferred even in *#*#4636#*#*... ohhh when I first flashed to the leaked ICS I had it set to wcdma preferred.
Why after I flash anything while on wcdma preferred It is unable to change or stick to any network? BTW even if I change it without exiting the screen I still can't get lte. Yes I'm in lte coverage and have the plan.
Please help thanks
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
Happened to me aswell, the only fix i could find is to go through the unbricking process to restore LTE connectivity, after that i changed my settings in *#*#4636#*#* and i lost LTE again. Only way i know of is to just do the unbricking process and flash whatever ROM you use, and avoid from changing the network settings via *#*#4636#*#*. Besides in cyanogen mod there is an option in the settings app to change networks and use 2g only. Changing network settings in settings app wont cause you to loose LTE once you change it back to the WCDMA/gsm mode in settings app again
nt1 said:
Hi guys I had to make a thread because I really don't know what's happening.
From stock I updated to the leaked ICS that came out in the spring. This is where I noticed I could not get lte.
I updated to cyanogen 9 and currently on 10.
I noticed that when I try changing networks from wcdma preferred to auto lte gsm it doesn't stick. It goes back to wcdma preferred even in *#*#4636#*#*... ohhh when I first flashed to the leaked ICS I had it set to wcdma preferred.
Why after I flash anything while on wcdma preferred It is unable to change or stick to any network? BTW even if I change it without exiting the screen I still can't get lte. Yes I'm in lte coverage and have the plan.
Please help thanks
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
I would try doing flashing a new basband/firmware and then doing a factory reset, if that doesnt help, then I would do the unbrick proccess. (takes about an hour)
In Viper ROMs notification bar there was a switch for 2G/3G/2G+3G.
I really miss this option in other ROMs, where only 2G/2G+3G is available. In auto mode (2G+3G) my phone often has trouble choosing network which makes the connection very unstable.
Do you have any tips for an app or widget that will let me lock to 3G only?
Thanks.
Try going to Settings - Mobile Networks - change Network Mode to WCDMA only.
Coming from a Sense 3.6 ROM here. Might be different from ROM to ROM.
Sent from my HTC Desire S using xda app-developers app
Sorry forgot to mention, I use AOKP, where there is no such option in the Settings menu. But I recall your solution works in original and Sense ROMs.
type in wcdma into Google play and it should show an app called network, it simply accesses the network settings inside the os and allows you to change to wcdma only (3G). this does need set after every boot though.
kevrae said:
type in wcdma into Google play and it should show an app called network, it simply accesses the network settings inside the os and allows you to change to wcdma only (3G). this does need set after every boot though.
Click to expand...
Click to collapse
Great, exactly what I was looking for! Thanks a lot.
hi,
I have Samsung AT&T I747 with HyperDrive ROM. It always registered on GSM/LTE/CDMA preffred mode and I m unable to set it to GSM only mode. I even go to and set manually GSM only in mobile network setting but again it jumps to GSM/LTE/CDMA mode...
Please suggest me how to set it to GSM mode only.... I tried *#2263# also, but it also does not work.
Thanks
Jiten
jitensetia said:
hi,
I have Samsung AT&T I747 with HyperDrive ROM. It always registered on GSM/LTE/CDMA preffred mode and I m unable to set it to GSM only mode. I even go to and set manually GSM only in mobile network setting but again it jumps to GSM/LTE/CDMA mode...
Please suggest me how to set it to GSM mode only.... I tried *#2263# also, but it also does not work.
Thanks
Jiten
Click to expand...
Click to collapse
You can not do this. GSM/LTE/CDMA is the correct mode it should be on
Might I ask why you want to do that ?
hednik said:
You can not do this. GSM/LTE/CDMA is the correct mode it should be on
Might I ask why you want to do that ?
Click to expand...
Click to collapse
thanks for taking this up, actually I had 2G internet activated on my mobile plan. And when I set all the modes ON, it drains my battery fast and always jump my device from GSM to 3G and bounce back very frequently and my phone sometimes goes unreachable.
So previously when I was on stock ROM then it used to search only for 2G network and my battery also does not drain fast.
jitensetia said:
thanks for taking this up, actually I had 2G internet activated on my mobile plan. And when I set all the modes ON, it drains my battery fast and always jump my device from GSM to 3G and bounce back very frequently and my phone sometimes goes unreachable.
So previously when I was on stock ROM then it used to search only for 2G network and my battery also does not drain fast.
Click to expand...
Click to collapse
Could be that its a Verizon based rom. Try an at&t or T-Mobile based ROM. See if you have problem
Sent from my SGH-I747 using xda premium
jitensetia said:
hi,
I have Samsung AT&T I747 with HyperDrive ROM. It always registered on GSM/LTE/CDMA preffred mode and I m unable to set it to GSM only mode. I even go to and set manually GSM only in mobile network setting but again it jumps to GSM/LTE/CDMA mode...
Please suggest me how to set it to GSM mode only.... I tried *#2263# also, but it also does not work.
Thanks
Jiten
Click to expand...
Click to collapse
I haven't seen your ROM but, on AOKP you would go to Settings>More>Mobile networks>Network operators and search for available networks. When search is completed, click on AT&T (there may be more than one showing.) After this, your selection of GSM/WCDMA will "stick." Unfortunately, it has to be repeated after every reboot.
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
UPDATE... looks like as long as i dont try to make a call the option to switch it back to auto is still there. One a call is attempted and fails the option to set to auto disappears.
fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
hyelton said:
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
Click to expand...
Click to collapse
I understand but after it's been on LTE for a while it doesn't give you the option to switch back.
fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
fastwanabe said:
I understand but after it's been on LTE for a while it doesn't give you the option to switch back.
Click to expand...
Click to collapse
Depending on what rom your using under mobile networks there is network selections with
LTE/WCDMA/GSM
GSM Only
WCDMA Only
and LTE only
hyelton said:
Depending on what rom your using under mobile networks there is network selections with
LTE/WCDMA/GSM
GSM Only
WCDMA Only
and LTE only
Click to expand...
Click to collapse
Right, thats what normally the options are however after about 5 min after selecting LTE/CDMA the only options that appear were.
LTE/CDMA
CDMA
thats it.
fastwanabe said:
Right, thats what normally the options are however after about 5 min after selecting LTE/CDMA the only options that appear were.
LTE/CDMA
CDMA
thats it.
Click to expand...
Click to collapse
How are you changing it? Changing it via Build.Prop? Then there is your problem, JUST change it using the setting under mobile networks..
hyelton said:
Most carriers Phone calls and Texts dont go through LTE...... If your setting it to LTE only thats why.
Click to expand...
Click to collapse
hyelton said:
How are you changing it? Changing it via Build.Prop? Then there is your problem, JUST change it using the setting under mobile networks..
Click to expand...
Click to collapse
I'm changing it under mobile networks.
Stop changing it to lte/cdma and you're phone will no longer mess up. Leave it on gsm/wcdma/lte auto. You're phone will switch when the appropriate network is available!!!
Sent from my LG-E980 using XDA Premium 4 mobile app
fastwanabe said:
Hi, guys I recently ran into an issue with the build prop modification in regards to network selection. If I enable the network selection as pointed out in one of the other threads and select LTE /CDMA my phone will lock on LTE however no phone calls can be made out or recieved. I had to reflash to 10k then reroot and then change the build prop to CA/TLS and finally hardreset via stock recovery. Anybody else have this issue?
Click to expand...
Click to collapse
Simple fix. Just select airplane mode for a few and then toggle it off and you'll see your network options come back once data roaming turns off and your carrier logo appears. I typically run lte/CDMA to get consistent lte speed bit when a callsade I have the same issue as you. But I just gave your the fix so your good
Sent from my LG-E980 using Tapatalk 2
Jammol said:
Stop changing it to lte/cdma and you're phone will no longer mess up. Leave it on gsm/wcdma/lte auto. You're phone will switch when the appropriate network is available!!!
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks a lot captain obvious, the point of the thread wasn't to "not switch it" dude, it's finding a work around and make everybody aware of what happens.
fastwanabe said:
Thanks a lot captain obvious, the point of the thread wasn't to "not switch it" dude, it's finding a work around and make everybody aware of what happens.
Click to expand...
Click to collapse
It would happen on any phone!!!!!