I am using a Galaxy S2 Skyrocket on the Dirty Unicorn rom and I was wondering how I can force my network to 3G. I have Straight Talk on AT&T and a very good LTE 4G signal but it drains my battery very quickly and I don't really need the speed of LTE and the speed of 3G works fine for the things I do.
I've tried in the Mobile Network settings to switch it to GSM/WCDMA preferred but it always immediately switches back to LTE/GSM/WCDMA mode and connects to LTE. The use only 2G networks option does not work either as it immediately gets turned back off as soon as you turn it on.
Using *#*#4636*#*# to switch the mode to WCDMA preferred or GSM preferred does not work either as it also switches back to LTE immediately after.
Is it possible to force the phone to 3G networks? On my old captivate samsung phone on a 4.2 JB rom, it was doable and it worked on 3G fine (even being a 4G enabled phone).
Here is what I've found works on AT&T but it might not work for you.
Go to mobile network settings and then Network Operators. In the Network Operators screen scan for networks. If two different networks appear select the one on the bottom. Then the 2G only button and other settings will work and stick until you reboot your phone. I have to change this every time I reboot. I hope this helps.
Sent from my SGH-I727 using xda app-developers app
Yes. That worked. Now I just need to figure out how to turn off the hspa so it just uses a 3G connection on WCDMA instead of hspa or hspa+
Sent from my SGH-I727 using xda app-developers app
I have been using this technique every time I reboot. Anyone know how to make this permanent?
Or perhaps automate it using tasker?
Related
I am having an issue locking the phone to WCDMA. I live an area where the EDGE signal is stronger and it constantly drops 3G. After rooting the phone, I locked it into WCDMA and it would stick all the time, even dropping all signal when I moved into an area with only GSM coverage. However, somewhere along the line, I've lost the abillity to lock it in. I have tried going into the Mobile Networks settings and selecting WCDMA Only and also doing the *#*#4636#*#* and neither one will lock it into WCDMA. Anyone else having this issue or know of a workaround for this?
If ur in a edge based area where 3g is minimal,then setting to wcdma is the worst way to go. Wcdma will lock u into 3g/4g signals ONLY! So if your in edge area only,wcdma will not give u data or signal due to the fact the phone is searching for 3g/4g signals only. And GSM or cdma is a different ball park. Set to wcdma preferred and let it pick up what it can. If a 3g or "4g" signal is avaliable,it will automatically detect it and connect.
Sent from my HTC Inspire 4G using XDA App
mattmiller said:
If ur in a edge based area where 3g is minimal,then setting to wcdma is the worst way to go. Wcdma will lock u into 3g/4g signals ONLY! So if your in edge area only,wcdma will not give u data or signal due to the fact the phone is searching for 3g/4g signals only. And GSM or cdma is a different ball park. Set to wcdma preferred and let it pick up what it can. If a 3g or "4g" signal is avaliable,it will automatically detect it and connect.
Sent from my HTC Inspire 4G using XDA App
Click to expand...
Click to collapse
Its not that I don't have 3G in my area, its just that it only gives me 3 bars as opposed to EDGE which will give me full signal. When it's set on wcdma preferred, it will connect to 3G and after a few minutes switch over to EDGE. With my Captivate and the Inspire when I first got it and before I rooted it, I was able to lock it into only 3G. Somehow after flashing basically every rom in this forum, I can't get that setting to stick anymore.
Ok then flash the ruu of the rooted stock inspire. It is a pd98img.zip u can load and flash via bootloader. It will stay s-off and will flash updated radio and patches. Get your data fixed and GPS and then flash a rom afterwards. Attn1 has it posted in the development.
Sent from my HTC Inspire 4G using XDA App
Rob_Wing said:
Its not that I don't have 3G in my area, its just that it only gives me 3 bars as opposed to EDGE which will give me full signal. When it's set on wcdma preferred, it will connect to 3G and after a few minutes switch over to EDGE. With my Captivate and the Inspire when I first got it and before I rooted it, I was able to lock it into only 3G. Somehow after flashing basically every rom in this forum, I can't get that setting to stick anymore.
Click to expand...
Click to collapse
Same issue here, I called AT&T and they said it's because the cell tower closest to my office is old and supports Edge only so my phone keeps attaching to that tower even though there are other towers in range (that will give me 3 bars of 3G) which are newer.
With the stock rom, even going into the testing menu and setting "WCDMA only", it kept me on the Edge network. I rooted and flashed a custom ROM (Android Revolution) and at first it was great. At the office I could force "WCDMA only" at my desk, when I went into the middle of the building or whatever I would just have no signal (which I was ok with).
Now with the newer versions of the ROM I could no longer force "WCDMA only"... And the OP basically ignores my questions when I ask. Something that worked fine, I flashed a new version of the ROM and it stopped working...doesn't take a genius to figure out it's probably something he changed in his ROM... Not to sound unappreciative of the developers here...they do great work. Just frustrating... >_<
is there any way that you can disable 3g mobile data while keeping on the 4g data(like you can with the evo 4g)?
the reason i ask is this... i use my phone to tether to the computer in my room, and it seems that i get a weak 4g signal there, so its constantly going back and forth between 4g and 3g. I'd prefer to keep the phone only on a 4g signal, even if weaker. is there a way to do this ?
Try the app lte onoff from the market. I believe there's an option for lte only.
Which selection would it be? thanks in advance
Sent from my SCH-I510 using XDA App
I need this too.
On the thunderbolt if you used one of those phone info apps you had the options for CDMA only, CDMA/LTE auto and LTE only.
I have to use LTE only when I want to tether in my office because if I leave it on auto my phone will constantly switch between 4 and 3g and it rapes my battery.
If you use those same apps on the charge they show a bunch of gsm options and wcdma and such. Far as I can tell none of them do anything either. The built in options on the phone allow you to use CDMA only or CDMA/LTE auto but not LTE only. Definitely hope someone can work up a fix soon as it's a key issue for me (I own two tablets that I like to tether).
please help.How to activate 2G/3G switch in INFUSE 4G (I997UCKD5).
I would like to switch my phone between EDGE and HSDPA+ speeds.
The Edge and Hsdpa+ speeds are the same on ATT lol
J/k
infuse 4g "a lot a screen real estate"
i just asked about switch, not for the ATT speed.
Somebody knows how to to activate this button?
re: 2G/3G
malikin said:
please help.How to activate 2G/3G switch in INFUSE 4G (I997UCKD5).
I would like to switch my phone between EDGE and HSDPA+ speeds.
Click to expand...
Click to collapse
There is NO switch like that, if you want only 2G then simply set the phone to "GSM only" and it will only get the slow EDGE speeds regardless of what area you are in.
If you do not set the phone for GSM only then the phone will automatically switch to 3G/4G speeds if those speeds are available in whatever area you are in.
Whenever you are in a 3G/4G area you will see a little icon in your notification bar if you have not set the phone up for GSM Only.
Misterjunky said:
There is NO switch like that, if you want only 2G then simply set the phone to "GSM only" and it will only get the slow EDGE speeds regardless of what area you are in.
Click to expand...
Click to collapse
but we haven't configuration button/item to choose "GSM ONLY" or 3G MODE in my firmware.
may be this will help us http://forum.xda-developers.com/showthread.php?t=963562 ?????????
*#*#INFO#*#* in dialer, then Phone Information
INFO = 4636
Default is GSM/WCDMA Auto (PRL)
Battery History is kinda useful too...
Entropy512 said:
*#*#4636#*#* in dialer, then Phone Information
Default is GSM/WCDMA Auto (PRL)
Click to expand...
Click to collapse
but i can't to save changes. i choosed "WCDMA only" and after reconnecting were automatically connected to EDGE
please help
You're right... I tried to force GSM Only and failed.
Not sure why you would ever want to force WCDMA only. The phone will always prefer 3G over 2G.
I tried to force WCMA Only and failed.
Entropy512 said:
You're right... I tried to force GSM Only and failed.
Not sure why you would ever want to force WCDMA only. The phone will always prefer 3G over 2G.
Click to expand...
Click to collapse
The reason for doing that is if you are somewhere on the outer edge of a 3g/4g connection and it keeps jumping back and forth. All the signal jumping can kill a battery quicker.
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
When you go into the *#*#4636#*#* screen, select phone information and then hit menu. Select radio band and pick AUS. This locks my phone to 3g/4g.
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Infused 2.0 adds this feature.
How to Switch Samsung Infuse 4G i997 to 2G Edge Network. Turn off 3G/4G on Samsung In
Warning: This will work depending on where you’re at. If you’re in a good area with excellent coverage your phone may just stay with the H+ and not switch. Here we go.
Step 1) Dial *#*#4636#*#*
Step 2) Click Phone Information (at the top)
Step 3) Scroll down
Step 4) Click the grey/bluish menu and select GSM only. DON’T SELECT ANY OTHER ONES or you may roam on other carriers.
Why would you do this? You can save battery power by not using the H+ network.
_____________________________
To switch back to 3G or 4G
Step 1) To switch back follow steps 1-3 and then click GSM/WCDMA auto (PRL)
Hi there,
I have a Samsung Galaxy S2 LTE (signed with Rogers) and I'm trying to figure out how to disable 4G on my phone and only use 3G. I've looked through some threads talking about changing the "Network mode" in the "Mobile network settings," but I haven't had any luck with that.
GSM/HSPA/LTE (Auto Mode)
GSM/HSPA (Auto Mode)
GSM Only
HSPA Only
Right now, I'm using GSM/HSPA (Auto Mode) but it still says I'm connected to 4G in the status bar. In GSM Only, it connects to the edge network (E) and in HSPA only, it will connect to 4G network. Anyone have any ideas of how to connect using 3G?
Also, I've noticed in my APN settings, I'm using the "ltemobile.apn" (the only APN setting I have listed). I don't have a LTE plan, so should this be the APN that I should be using? Since I'm not on a LTE plan, would I be charged more for using the "ltemobile.apn" APN?
Thanks
4g is 3g/HSPA. If you were able to get LTE, the 4g icon would change (as long as you aren't on a ROM that doesn't have LTE icons)
Is there any way to turn off 4G/LTE completely and just use 3G to conserve battery life? I don't own a Skyrocket but my friend does and has horrible batt life.
On home screen press menu button and go to phone settings
Wireless and Network > Mobile Networks > Network Mode
Here you can tell it to use edge/3g/lte or edge/3g or just edge or just 3g
Hopfully that is not my ROM that allows me to choose that. Using Sky Ice Cream Sandwich rom
It depends on the ROM. Stock won't do it and a number of custom roms I've used don't do it either, but I have seen some that appear to allow for that functionality. Do some research and find one you like.
"4G" is 3g (well hspa+) which is twice as fast as what 3g speeds were originally at (see 4, iphone) its more of a marketing thing. There won't be a 3g icon showing up with these roms. best bet is to choose gsm/hspa then it won't be looking for LTE.
bluecrush69 said:
Hi there,
I have a Samsung Galaxy S2 LTE (signed with Rogers) and I'm trying to figure out how to disable 4G on my phone and only use 3G. I've looked through some threads talking about changing the "Network mode" in the "Mobile network settings," but I haven't had any luck with that.
GSM/HSPA/LTE (Auto Mode)
GSM/HSPA (Auto Mode)
GSM Only
HSPA Only
Right now, I'm using GSM/HSPA (Auto Mode) but it still says I'm connected to 4G in the status bar. In GSM Only, it connects to the edge network (E) and in HSPA only, it will connect to 4G network. Anyone have any ideas of how to connect using 3G?
Also, I've noticed in my APN settings, I'm using the "ltemobile.apn" (the only APN setting I have listed). I don't have a LTE plan, so should this be the APN that I should be using? Since I'm not on a LTE plan, would I be charged more for using the "ltemobile.apn" APN?
Thanks
Click to expand...
Click to collapse
HSPA is actually 3G. AT&T and Tmobile were calling it 4G because they had to come up with some marketing scheme to compete with WiMaxx and LTE. SO in short, AUTO HSPA... is effectively disabling your 4G.
Hello All,
I'm on the WIND mobile network and I'm trying to prevent my MyTouch 4G Slide from roaming on Rogers. I'm running pyr-o-ice 1.12 desensed, and I can't figure out how to get the WCDMA only mode to stick.
I only recall one ROM (don't recall which one) being able to set WCDMA only as persistent, and this one doesn't seem able to. I've read that there is an app available on the market, but I'm wondering if there's any way to do this straight through Android. *#*#4636#*#* menu settings are NOT persistent. Even without rebooting, the phone will switch to WCDMA preferred even after I have set WCDMA only mode.
Does anyone have a persistent solution on ROM-agnostic Android? I don't mind editing files through adb. Thanks!
It may be a glitch in the ROM. I have the stock Rom and run WCDMA Only mode all the time. T-Mobile's 2G at my work is terrible so I just use WiFi or WCDMA.
Sent from my unrooted, stock, Black myTouch 4G Slide using XDA Premium App.
I have full bars on both 2G and 4G, but the 4G is slooooooow... Anyone know why? Sometimes 2G is faster... The phone on 4G just seems to keep downloading "something" but doesnt show much... And takes forever to load. So i have to use wifi but when i am out id like to use 4G... Thanks
Sent from my myTouch_4G_Slide using XDA
4g in your area can just be borked....
Have you tried Toggle2G? (You need to flash the ...update.zip)
Stefan