Turning off LTE - Nexus 5 Q&A, Help & Troubleshooting

In India where I am LTE is still not available so I was hoping to turn it off completely and save battery power.
I tried changing the network mode in settings to 3G but after a while it seems to revert back to LTE or no option selected.
Any thoughts?
Sent from my Nexus 5 using Tapatalk

No point in turning it off if it's not connected to LTE, you won't save anything.

It's a bug. Select 3g. When you return to the menu nothing will look to be selected but 3g is selected when this happens. Hope that made sense
NX5

Related

Disable 3G/ Use EDGE Only

For all the people that need their battery for a day or more I wanted to add the instructions on how to disable 3G.
Go into the dialer and type in *#*#197328640#*#*
Select "Debug Screen" on the menu
then hit "Phone Control"
then "UE State Control"
"Change RAT to GSM" will turn off 3G access and will leave your DATA on 2G.
This will save lots of battery especially for those who have low 3G signals.
Please note that rebooting the phone or even turning on "Airplane mode" will reverse these changes.
This means you will have to change the settings again (this is also the fastest way to cancel the changes and go back to 3G).
Thanks a ton for this. I'm sure it was in another thread, but I always saw mixed reports and hadn't tried it myself.
I have a 3-4 bar EDGE signal in my office, but only a 0-3 3G signal, so this will be a lifesaver.
However, as soon as there's a ROM that adds the force 2G option that should be there back into settings (and removes any other locks AT&T put in the software), I'll probably go that direction just because it is a pretty clunky way to do something that should be an option as is.
I have something to add to this. If you use a reboot or airplane mode to turn 3G back on, the next time you go to turn 3G off, you may need to re-enable 3G (WCDMA) before changing back to GSM. Apparently, the setting didn't get changed in the debug menu even though I got switched to 3G, so I had to put it back on 3G first.
Is this still the only way to disable 3G but leave 2G enabled on the Captivate? The apps in the Market are still all or nothing (3G or no data connection at all).
Thanks!
3G, 2G disabling?
Is there a way to disable the 3G/2G altogether but still use wireless?
You can always put it in airplane mode and then turn WiFi on if you don't want to use the AT&T network at all.

Any way to force LTE only mode?

The thunderbolt had this and it was nice.
Basically when I'm at work I'm in a fringe 4g area. If I leave the phone in 3g/4g auto mode then it constantly switches between the two and it destroys my battery. Not only that but it makes 4g basically unusable for me as it never stays on long enough to do anything with it.
On the thunderbolt by going into the phone info settings you could select LTE only mode.
On the Charge you only have the options of going CDMA only or CDMA/LTE auto. There is no LTE only option.
Is this something that can be corrected by an app or rom or kernel or is it built into the radio software?
I used the phone info app that worked great on the thunderbolt and on the charge it just comes up with a bunch of options like WCDMA only, GSM only and such and as far as I can tell none of them actually do anything.
Hopefully someone knows the answer to this because I like tethering to my tablets at work but if I can't have consistent 4g then I'm gonna be forced to return to my tbolt which is a shame because I like this charge alot better.
I haven't pucked up a Charge yet, but most Sammy phones let you for some fine grain tuning if the radio and other system settings via a menu accessed by a dialer code.
You could try *#*#197328640#*#* (is debug mode) and dig in from there.
Sent from Thunderbolt
distortedloop said:
I haven't pucked up a Charge yet, but most Sammy phones let you for some fine grain tuning if the radio and other system settings via a menu accessed by a dialer code.
You could try *#*#197328640#*#* (is debug mode) and dig in from there.
Sent from Thunderbolt
Click to expand...
Click to collapse
Already tried that, it doesn't work on the charge. It just dials and you get the "Welcome to Verizon wireless, your call cannot be completed as dialed" message.
I believe if you go settings ->wireless and network->mobile networks->system selection change it to CDMA mode will disable LTE.
you can try dialing "*#*#4636#*#*" that takes me to a hidden menu on the thunderbolt. If it works, from that menu select "phone Information" then select LTE only. or if you want to disable 4g (Helps battery in non 4g areas) you can select "CDMA auto(prl)"
thetwiztidfreak said:
you can try dialing "*#*#4636#*#*" that takes me to a hidden menu on the thunderbolt. If it works, from that menu select "phone Information" then select LTE only. or if you want to disable 4g (Helps battery in non 4g areas) you can select "CDMA auto(prl)"
Click to expand...
Click to collapse
Beat me to it
Sent from my ADR6400L using XDA Premium App
Thanks but did you guys even read my original post?
For starters, I'm not trying to disable LTE... I'm trying to force LTE only.
Secondly, as I previously said, This phone does not have the same radio options that the thunderbolt does. There is no option for LTE only. I understand the difference between CDMA auto PRL, CDMA/LTE auto and LTE only. THE PROBLEM IS THIS PHONE DOES NOT HAVE AN LTE ONLY OPTION!
I tried the phone info app that works on the thunderbolt, the only options are all for WCDMA only, GSM only and CDMA only and various combinations of them. There is no LTE only. Besides, none of the options present in that menu actually change anything, only the 2 that are built into the wireless network settings do (CDMA only and CDMA/LTE Auto).
Not trying to be a **** but if you're gonna post something to try and answer a question or help someone at least make sure you read the question.
In the same boat as you. I actually get decent service on LTE at home, and virtually nothing on 3G... go figure, but it keeps trying.
navycow said:
In the same boat as you. I actually get decent service on LTE at home, and virtually nothing on 3G... go figure, but it keeps trying.
Click to expand...
Click to collapse
i have the same problem as both you guys and this is so frustrating. when its connected to 4g i get between 8-10mb down. i also have a samsung mifi hotspot for verizon and it shows a strong 4g signal and gets over 10mb down consistently in the very same location.
i have no idea why my droid charge keeps switching between 4g and 3g. the funny thing is the only reason i really mind is because the 3g signal is horrible. if i was getting 2mb down on the 3g like i have seen at other locations i wouldnt mind at all.
yeah i have the same issue as well, i'm really not even sure what it's testing to decide to switch from 4g to 3g, i live about 100 yards from the verizon tower i'm connecting to and have full reception on both 4g and 3g but yet it still switches randomly between the 2, we really need a way to disable 3g
Sent from my Xoom using XDA Premium App
Still nothing on this front? I'm afraid I'm gonna have to return my charge tomorrow then =(
No LTE only mode = no 4g for me.
I already did and canceled Verizon, I'll have to stick with sprint. I really loved the charge, and wanted to keep it and stay with Verizon , but my evo gets a full 4g signal both at home and work. Too bad, the charge was an awesome phone
Sent from my SPH-D700 using XDA App
It actually seems to be the way android handles 4G, either on purpose or just coincidentally.
I have the same issue at work with Sprint, 4G gives me 2-3 bars but there is NO 3G, but it turns 4G off when the screen is locked, so it sits there trying to get backups in 3G all day, spare parts lets you force wifi to stay on, surely there should be a similar switch for 4G a dev could find.
Any luck on this issue here? I have a feeling I'm in a fringe area where it could potentially switch me between networks quite often...
Is it safe to assume that an LTE-only option is impossible unless Samsung does something to enable this functionality out of their LTE chip (CMC220)?
Any updates on a LTE/4G only option?
I found out how to force LTE Only ...
Warning! If this bonks up your phone, don't blame me!
Use at your own risk!​
Now that we got that out of the way, here is what I have found:
Enable the Hidden Menu option by entering the following code in your phone dialer: *#22745927
Enter an SPC of: 000000
Select: Hiddenmenu Enable
Select: OK (Your phone may reset after this)
To get to the "Force CMDA/LTE/Global" menu, enter the following code in your phone dialer: **583
If you press the LTE button, you will be fixed on the LTE network.
Reset your phone
Taaa-daa!
Note: You apparently need connectivity to the CDMA network to make phone calls & text messages (Thanks, chaoscentral!) Oh, well ...
To reset back to the normal LTE/CDMA automatic selection mode:
Go to the "Force CMDA/LTE/Global" menu by enter the following code in your phone dialer: **583
Press the CDMA button, which will re-enable your phone to default to the CDMA network.
Reset your phone
When your phone boots back up, go to: Settings >> Wireless & network >> Mobile networks >> System selection >> LTE automatic
Cheers!
just keep in mind LTE only mode means no phone calls or text messages. since those go over CDMA
Ah, I should've guessed they would make the phone code for this hidden menu option "LTE". Now I wish there was a way to only disable EV-DO 3G (leaving CDMA intact for phone calls/texts). Can't have it all I guess...
Thanks for this regardless!
PeterDLai said:
Ah, I should've guessed they would make the phone code for this hidden menu option "LTE". Now I wish there was a way to only disable EV-DO 3G (leaving CDMA intact for phone calls/texts). Can't have it all I guess...
Thanks for this regardless!
Click to expand...
Click to collapse
Yep. I tried goofing around with a few different options on the "LTE" theme, but nothing came up.
Then, I realized that I had loaded new ROMs since the last time I had enabled the Hidden Menus option, and figured out that my Hidden Menus were no longer enabled. Once I re-enabled the hidden menus, I tried *#LTE#* (which didn't work), and then **LTE, which did.
BTW, for anyone that has had problems making phone calls after following my original settings, I have updated the post on to how to get back to automatic LTE/CDMA.
Also, has anyone tried that **583 "Global" option yet? Verrrry Interesting!! (But, spooky!)**
Ain't messin' with your phone fun?
** Anyone who gets this reference wins one "Bippy".

[Q] HELP! Lost 3G, Edge only

I was just exploring my phone and I went onto the hidden menu:
*#*#4636#*#*
From here, I changed the network thingy from GSM/CDMA auto (PRL) to GSM only just to see what it was about. All of a sudden my data connection went from 3G to edge. So then I changed it back to GSM/CDMA auto (PRL) and there isn't a change. I have turned off my phone and restarted but still only get Edge connection. The area I live in has a very strong 3G signal all the time. Is there any solution on how to get my 3G back? Im on stock rom 2.3.4 rooted. I also have the I9020A version from Rogers. Any help would be much appreciated.
*PS I really don't want to do a factory reset
Have you tried mark and unmark "2g only" in network settings?
Sent from my Nexus S using XDA App

No 3g signal

I'm on bamf soab 1.03 and I dont think anyone else is habing this problem but I'm wondering if anyone knows how to fix this issue. When I get 4g signal the phone will use it but won't use 3g. It drops out of 4g and then just stays without data. So basically its only using 4g or else its just not connecting to 3g. There is no data problem in my area because people I live with are getting 3g just fine....any ideas?
Menu > Settings > Wireless & Networks > Radio Info > Change LTE only to CDMA/LTE mode
if you don't have the radio info option there, download LTE toggle from the market and do the last step.
heh. i tried out the new 1.03 and market just kept crashing on me(even after force stopping/clearing data) and uninstalling updates. so i just thought "to hell with it" and switched back over to shiftao3p
No such setting as LTE only. And my phone has always been on LTE/cdma so its not that I already checked that. I'm not a noob user.
do you have EHRPD on under modem settings in ##778? It should be. Past that I sometimes reset if it has issues locking on to one and that will resolve. That's all for my ideas, though I'm still on SOAB 1.02
johnchad14 said:
do you have EHRPD on under modem settings in ##778? It should be. Past that I sometimes reset if it has issues locking on to one and that will resolve. That's all for my ideas, though I'm still on SOAB 1.02
Click to expand...
Click to collapse
This is what i was going to suggest. Here's some information that might be helpful. I've found that with the network testing and stuff the past few weeks in my area, sometimes revision a enabled is better, sometimes eHRDP works better. Try switching revision A and see what it does.
Try dialing ##778# on your phone, hit call if you need to.
Choose edit mode
Password is 000000 (six zeros)
Choose modem settings, go down to revision A, and change from e HRDP to "enabled"
Press menu and commit modifications, phone will reboot.
After it settles you may need to go to *#*#4636#*#* and choose phone info then change your preferred network settings to get a solid signal.
Sent from my ADR6400L using xda premium
I was messing with it last night and seems that the issue is fixed if it happens again ill follow those steps. I'm a pretty advanced user but I'm not so familiar with those settings so thanks for the help
Sent from my ADR6400L using XDA App
I'm running a version of 2.11.605.3, de-bloated and rooted.
I lost 3G on October 21st. I would either get 4G, or nothing. On occassion, I would get 1x. Selecting CDMA only gives me NO data
If I change the REV-A option under the ##778# menu from EHRPD to enabled, the 3G comes back and the toggling between 3G and 4G works fine.
Switch back to EHRPD and 3G goes away. Seems like the problem is with EHRPD. I don't know why all of a sudden it stopped working correctly and I don't have enough tech skills to identify the possible cause.
VZW has had trouble with their Data network the last two weeks, could be a VZW problem. I have not had any 3G problems on my phone and I am running SoaB v1.03 on my phone.
Sent from my Galaxy Tab 10.1

[Q] How to make LTE/GSM default?

some time ago i set the phone to LTE in the testing menu to see what LTE networks it could see. it saw them fine but not for the network i use yet.
the thing is ever since then everytime the phone reboots it seems to default back to LTE only. soi have to ga back in to the test menue and set it back to LTE/ GSM to get the signal back.
Help! why is it still doing this and how can i fix it?
Go to Settings, More... under Data usage, Mobile networks, Preferred network type. Make sure the radio button for 3G is selected.
so i cant leave it on 4g preferred? 4g should be coming to my location in the next coulpe weeks so id not want that to be perminant.
or will setting it to 3g reset things?
ooooooh, did as you said rebooted, 3g locked on. sat back to 4g preferred and rebooted, 3g locked on.
yey! thanks, i dont get why it worked but much appreciated.

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