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Force LTE to Edge/3G

Hey! I'm new to the forums and just got a Skyrocket this week.
I was just wondering if its possible to force the LTE signal to HSPA only or even Edge/3g?
Looks like the LTE radio is locked pretty tight. Anyone out there find a method to bypass this? I've tried the administrative menus in the Phone Information menu and even some of the Apps in the market LTE on/off and nothing seems to work.
Thanks!

Pretty sure you can change your APN settings to allow only hspa since lte seems to require the PTA setting. Look for the various settings and I'll update later if you have no luck.
Sent from my Samsung GSII Skyrocket (SGH-I727) using xda premium

I thought of that too for battery saving.
Here in Canada I tried changing the APN from the default LTE setting to the internet.com setting but it is still stuck on 4G. I didn't subscribe to LTE plan yet but Speedtest.net tests is still better on the LTE apn.

*#2263#* gives access to the RAT selection menu, which lets you choose to park on GSM/UMTS/LTE, and separately which bands (850,1900,1700,2100, etc.) to park on within each technology.
Unfortunately the menu is restricted on our current radio, in my experience with previous Samsung UMTS radios we will need to flash a radio that is not restricted (at least temporarily, to unlock the menu) to get access to this.

@cue_32 i believe its supposed to say LTE when you are on lte. if it says 4g its really just 3g (or 3g+).

It would be great if an LTE on/off switch was created. If the current radio restricts this from occurring would be a huge bummer. I'll have to dig around on the Development blog to see if anyone is starting to look into this or creating some kinda switch.

The TPC rom gives you the option to choose LTE or HSPA in the settings.

EvilEvo said:
The TPC rom gives you the option to choose LTE or HSPA in the settings.
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What would be nice is if the ROM only connects to 3G when on idle, then go to 4G or LTE when data is being used. For better battery life
Sent from my SAMSUNG-SGH-I727 using XDA App

cue_32 said:
What would be nice is if the ROM only connects to 3G when on idle, then go to 4G or LTE when data is being used. For better battery life
Sent from my SAMSUNG-SGH-I727 using XDA App
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Agreed, the original GSII does that with hspa and 3g

help
Hi, how can I bypass AT&T throttling through chaning the APN? I'm running 2.3.6 stock and am in NYC. Thank you!

Force 2g. Is it possible and how

Most of the reason I rooted my phone was to be able to force my at&t Skyrocket into 2g mode. I get little to no 3g coverage at work and when the phone switches to edge (2g) I get almost full bars. I have tried cm9 rom which has a known issue with forcing 2g anyway but gave it a shot. I also had aokp with no luck. And yes, I went to settings>network>use 2g mode on both roms. Then I went after radios......I know at&t has a rat locked radio so I thought I'd be clever and try the rogers rat unlocked radio. Got really good data speed, call quality, and signal other than work of course. But still didn't allow the force 2g mode. Tried the *#2263# or whatever and it won't even bring up a menu on at&t phones which is understandable because its a rogers thing. Then I tried the trusty ol *#*#4636#*#*. Wouldn't do anything either. Suggestions anyone? Or maybe its just impossible....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Nevermind
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

You can force the Skyrocket into GSM-only (2G/EDGE), but your ROM has to support it. Sky ICS does, not sure about others.
*Edit: Just tried it on my phone, and it seems to have worked fine.

tmanybill4u said:
Most of the reason I rooted my phone was to be able to force my at&t Skyrocket into 2g mode. I get little to no 3g coverage at work and when the phone switches to edge (2g) I get almost full bars. I have tried cm9 rom which has a known issue with forcing 2g anyway but gave it a shot. I also had aokp with no luck. And yes, I went to settings>network>use 2g mode on both roms. Then I went after radios......I know at&t has a rat locked radio so I thought I'd be clever and try the rogers rat unlocked radio. Got really good data speed, call quality, and signal other than work of course. But still didn't allow the force 2g mode. Tried the *#2263# or whatever and it won't even bring up a menu on at&t phones which is understandable because its a rogers thing. Then I tried the trusty ol *#*#4636#*#*. Wouldn't do anything either. Suggestions anyone? Or maybe its just impossible....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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You can on cm9 by first going to "select network operator" and choosing at&t. Then 2g networks only will stick. Thank cschmitt for this.
sent from my part of the problem

Sorry to mention I'm on Straight Talk. Should that matter? Don't think so
Sent from my SGH-I727 using xda app-developers app

T.J. Bender said:
You can force the Skyrocket into GSM-only (2G/EDGE), but your ROM has to support it. Sky ICS does, not sure about others.
*Edit: Just tried it on my phone, and it seems to have worked fine.
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Click to collapse
Greeting from Hong Kong.
I encounter the same problem. The 3G (WCDMA2100) signal at my home is too low (<-110dbm) to make a call but my Skrocket could not switch to the 2G network (GSM900 with -85dbm) automatically. I wonder if anyone has an apps that could switch the phone to 2G mode through the servicemode menu (*#2263#, 3, 6) and then back to 3G mode (*#2263#, 2, 6).
Bender mentioned that a Sky ICS ROM could do it. Please let me know where I can obtain this ICS. Thanks very much.

http://forum.xda-developers.com/showthread.php?t=1763195
Sent from my SAMSUNG-SGH-I727 using xda premium

yip2727 said:
Greeting from Hong Kong.
I encounter the same problem. The 3G (WCDMA2100) signal at my home is too low (<-110dbm) to make a call but my Skrocket could not switch to the 2G network (GSM900 with -85dbm) automatically. I wonder if anyone has an apps that could switch the phone to 2G mode through the servicemode menu (*#2263#, 3, 6) and then back to 3G mode (*#2263#, 2, 6).
Bender mentioned that a Sky ICS ROM could do it. Please let me know where I can obtain this ICS. Thanks very much.
Click to expand...
Click to collapse
I have installed ICS build 4.2F6R2 on my Skyrocket but still could not force my phone to 2G network. How can I do it please?? Thanks.

I have installed ICS build 4.2F6R2 on my Skyrocket but still could not force my phone to 2G network. How can I do it please?? Thanks.
Click to expand...
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setings, more, mobile networks? Or something similar.
I was wanting to do this without flashing a rom. I am running stock ICS AT&T i727UCLF6.
I have the same problem where i don't get very good 3g service, drop calls all the time and would just like to force it into 2g mode while at work. Why would this be removed from the rom should be a basic feature.

Install RAT unlocked modem, *#2263# and picking specific band that is supported by your provider suppose to work. Tho it's not gonna work on CM/AOSP based roms. It will work on att phones.

kishke said:
Install RAT unlocked modem, *#2263# and picking specific band that is supported by your provider suppose to work. Tho it's not gonna work on CM/AOSP based roms. It will work on att phones.
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Thanks very much. Flashed the Rogers Offical ICS modem found here. [MODEM]Official Rodgers..Release Modem- UXLF3
I am able to change to 2g mode only now. However i was wondering if there is a possibility of automating the process via an app, instead of using the *#2263# via the dialer?
For G only: *#2263#, choose option 3 GSM band preference, Then GSM 1900 I did not get 2g on this option but I hear from others that you can.
For 2g only: *#2263#, choose option 3 GSM band preference, Then GSM 850 Never dropped to G but has the possibility to.
For 3g/HSPA only: *#2263#, choose option 2 WCDMA band preference, Then WCDMA 1900 or 850
To return to normal: *#2263#, Choose Automatic.
I don't have LTE in my area but I believe you can choose LTE B17 from LTE option to have LTE only. Didn't buy for LTE but because it was the best device (specs) through AT&T at the time.

Jnewell05 said:
Thanks very much. Flashed the Rogers Offical ICS modem found here. [MODEM]Official Rodgers..Release Modem- UXLF3
I am able to change to 2g mode only now. However i was wondering if there is a possibility of automating the process via an app, instead of using the *#2263# via the dialer?
For G only: *#2263#, choose option 3 GSM band preference, Then GSM 1900 I did not get 2g on this option but I hear from others that you can.
For 2g only: *#2263#, choose option 3 GSM band preference, Then GSM 850 Never dropped to G but has the possibility to.
For 3g/HSPA only: *#2263#, choose option 2 WCDMA band preference, Then WCDMA 1900 or 850
To return to normal: *#2263#, Choose Automatic.
I don't have LTE in my area but I believe you can choose LTE B17 from LTE option to have LTE only. Didn't buy for LTE but because it was the best device (specs) through AT&T at the time.
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Not for our phones for ics. With a rogers based radio on gb yes. So u have to pick, pics and manual, or gb and app.

Which app works with gingerbread?

Rogers lte not working

Hey guys
So I just got LtE network in my phone just about a week ago and it was pretty fast but it was draining my battery. So I went and switch back to gsm/hspa and guess what I can't switch back to lte......
Btw I am on sky Ics ROM and have been trying to read the forum but I can't seem to find a fix, any suggestion?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Try *#2263# select lte then menu key end then *#2263# select automatic then end and u should be good . Try this without sin in phone
Sent from my Skyrocket

Thank You so much
Jahcure said:
Try *#2263# select lte then menu key end then *#2263# select automatic then end and u should be good . Try this without sin in phone
Sent from my Skyrocket
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Ur welcome
Sent from my Skyrocket

kkakckk said:
Hey guys
So I just got LtE network in my phone just about a week ago and it was pretty fast but it was draining my battery. So I went and switch back to gsm/hspa and guess what I can't switch back to lte......
Btw I am on sky Ics ROM and have been trying to read the forum but I can't seem to find a fix, any suggestion?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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So jealous... I want LTE in my area (Edmonton)
Sent from my SAMSUNG-SGH-I727R running SKY-ICS 4.2F6-2.7

once you go LTE is very hard to go back

I upgraded to CM9 stable version yesterday, and I don't have LTE
I went to *#*#4636#*#* and selected LTE/GSM auto (PRL), and I added the Rogers LTE APN settings.
i also have baseband I727RUXLF3
help please.

Do you have an LTE SIM card from Rogers? If you don't have an LTE SIM card, you won't register to LTE network, even if you add the APN in the list.

Alexandre-P said:
Do you have an LTE SIM card from Rogers? If you don't have an LTE SIM card, you won't register to LTE network, even if you add the APN in the list.
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Yes, i do have an LTE sim card. Anyways, I deleted the LTE APN settings and created a new one, and just entered ltemobile.apn under the APN field. I left the MMSC address and APN type blank, and i was connected to LTE (4G).

Setting for only using 3G.

Hello everyone! I recently upgraded my optimus 3D to ICS with Darkroom v2. Everything works great except I can't seem to find the setting that enables 3G only. Do anyone know what to do to disable 2G? I am using the V21E baseband.
Sincerely Henrik

AW: Setting for only using 3G.
If you dont have internetconectivity try to add an apn, had the same problem on v2. Works for sure
P.S. dont know if i misunderstand you, or do you have internetconectivity but only 2g?
If this is your problem, to disable only 2g you have to go in settings there you find it.
Sent from my LG-SU760 using xda app-developers app

OK I will try to add a new APN. Yes I do know about the "only 2g network" option, it is unchecked. But because my phone never seem to automatically switch to 3G even if I know there is a strong 3G signal I want know if you can force the phone to only use 3G.
Sincerely Henrik

Dial 3845#*760# and go to Network Mode, remove the automatic check then go to WCDMA frequency bands and test each one to see which one works for your carrier. My idea is to not set the GSM frequency so the phone probably wont use it. You try and see if it works.

AW: Setting for only using 3G.
HenrikSwe said:
OK I will try to add a new APN. Yes I do know about the "only 2g network" option, it is unchecked. But because my phone never seem to automatically switch to 3G even if I know there is a strong 3G signal I want know if you can force the phone to only use 3G.
Sincerely Henrik
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Okay, wich baseband do you have?
And from wich country?
Had the same problem flashed xbsas rom with included basebsnd and i only had 2g, if that is the case try to flash v18a baseband.
P.S. im from germany with o2, but this baseband helps most of the people in xda
Sent from my LG-SU760 using xda app-developers app

At&t hidden menu

To access the hidden menu dial *#546368#*910#

McQueefus said:
To access the hidden menu dial *#546368#*910#
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Click to collapse
Doesn't work for me on my ATT version.
What options can you do with this anyways?
Sent from my LG-H910 using Tapatalk

You can test things such as your screen and data and can change a few settings

spexwood said:
Doesn't work for me on my ATT version.
What options can you do with this anyways?
Sent from my LG-H910 using Tapatalk
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It works on mine.
McQueefus said:
You can test things such as your screen and data and can change a few settings
Click to expand...
Click to collapse
Thanks. Is there a screen to change the connection technology e.g. 2G only, 3G only, and LTE only?

If there is I couldn't find it. I would think it would be under field test and under modem settings but I have not been able to change it. Please let me know if you find a way

haris163 said:
It works on mine.
Thanks. Is there a screen to change the connection technology e.g. 2G only, 3G only, and LTE only?
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Weird... I was trying the code in the Quickslide dialer, and it was saying that it was an invalid MMI code. I just tried the code again in the normal full size dialer and it worked without any issues. Hmmmm

Well glad you got it to work, I have tried to edit the apn settings for tethering but it didn't seem to work

haris163 said:
Is there a screen to change the connection technology e.g. 2G only, 3G only, and LTE only?
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Click to collapse
I downloaded the LG V10 Hidden Settings App
https://play.google.com/store/apps/details?id=you.love.v10.hidden.settings
The menu it pops using this under the Mobile Network has the option to select combinations of GSM, WCDMA, LTE.

Is there an app that can effectively change the network to cdma 3g only for lg v20 h910

Deniro254 said:
Is there an app that can effectively change the network to cdma 3g only for lg v20 h910
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If by cdma you mean WCDMA, see my previous post.
Sent from my LG-H910 using Tapatalk

Doesn't work
I downloaded the app from playstore and switched from 4g to 3g only and it still connected 4g...is there any other solution??

Deniro254 said:
I downloaded the app from playstore and switched from 4g to 3g only and it still connected 4g...is there any other solution??
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If it is a bigger "4G" symbol, then it is WCDMA/HSPA. When you are on LTE the "4G" is smaller and it has the word "LTE" under the "G".
You should be 3G or WCDMA flavor of 4G if you select the WCDMA option.
Sent from my LG-H910 using Tapatalk

Soo true... thank you so much