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Does anyone know how to enable 3G only on Vibrant????
I can see the option for 2G only, not for 3G... BTW my phone is rooted...
why would you want 3G only? when "2G only" is disabled... 3G is on but if there isn't 3G signal then it goes to alternative EDGE (2G) temporarily until 3G signal is available
"3G Only" isn't a feature.. and its pointless to have it as well
zephiK said:
why would you want 3G only? when "2G only" is disabled... 3G is on but if there isn't 3G signal then it goes to alternative EDGE (2G) temporarily until 3G signal is available
"3G Only" isn't a feature.. and its pointless to have it as well
Click to expand...
Click to collapse
it will be pointless for T-Mobiles users. But it will makes sense for Wind Mobiles users (Canada) cause Wind only has 3G connection and doesn't have any 2G connection.
Ya, so now you know it's not pointless. So what's the solution?
jaykim85 said:
it will be pointless for T-Mobiles users. But it will makes sense for Wind Mobiles users (Canada) cause Wind only has 3G connection and doesn't have any 2G connection.
Ya, so now you know it's not pointless. So what's the solution?
Click to expand...
Click to collapse
I'm pretty sure by default with the 2G unchecked that it's on 3G mode.
It's not a feature, it's just what it is...it's always on 3G accessibility.
http://ip208-100-42-21.static.xda-developers.com/showthread.php?t=734515
Use the code for Battery and General Info: *#*#4636#*#*
Towards the bottom there is an option for "Set preferred network type"
You can change that to only use the networks you want.
The descriptions of each of the choices are at the bottom of the linked post.
Hope that helps
I found that menu didn't work for me. I used that menu on my G1 and it worked great, but it seems to have no effect on the Vibrant.
Check out this post: (change the xx to tt, I can't post links yet)
hxxp://forum.xda-developers.com/showpost.php?p=7208948&postcount=2
That's the proper way to force 3g mode, and I do it on my phone it works great.
Also, another reason to force 3g only is if you live in a weak 3g area. I don't want to ride the edge network 60% of the time if I can force 3g and get it 100% of the time.
Hey none of the methods I read here work.
So after playing around with my phone a little bit, I discovered a way to actually lock 3g.
Again I'm not a phone expert, and I discovered this on my own, so use with caution, I don't want to be blaimed for a broken phone.
here is how I did, copy and pasted from another forum I posted these instructions in:
Tired of edge speeds, want to lock in 3g? Okay this next one, do at your own risk ask usual, use with caution. I kinda figured this one out on my own, through trial and error, so I’m not sure how stable or accurate, or even how safe it is to do this. I did notice though, if you screw up, you can use the factory reset code above and things should go back to factory defaults.
Okay…so again do at your own risk. Also by locking into 3g speeds, if you ever go into a non 3g area, or if your 3g signal is poor in your area, then your phone calls will drop and data will stop, unless you go back and set the phone to its default automatic gsm/cdma settings.
Dial: *#*#197328640#*#*
Click [1] debug screen
Click [8] phone control
Click [7] network control
Click [2] band selection
This is where you make a change, default setting is [1] automatic, which means it chooses automatically between gsm/cdma (Edge vs 3g). So we are going to change this and set it to wcdma band which is 3g.
Click [2] wcdma band
Click [1] wcdma all []
Now it should display “select wcdma all bands [*]"
Now on the bottom of your phone, click the menu key, it’s the one next to the home key, now click back, menu again one more time, back one more time, this is just to confirm it set to number 2 wcdma band.
Now click menu key one last time, click end.. and you are done. Now to double verify that the phone is locked into 3g, dial in: *#*#4636#*#*
Then click phone information Then scroll down to “set preferred network type” It should now have listed “wcdma only.” PS, if you tried to do a shortcut, and just set wcdma this way first without doing the lock above, it would just go back to gsm/cdma auto once you exit the screen.
Your phone should now be locked into 3g.
Just to confirm, i upgraded my firmware to XWJM5 today, and i noticed that in settings > wireless and network > mobile networks, there's a new menu 'network mode' in which there's 3 options - auto / gsm only / wcdma only. Nice touch!
In answer to the cynics, there are times when browsing, when the phone is borderline whether to give you 2g or 3g, it does come in handy, and it's safer too, as if i have to browse on 2g it makes me want to smash the phone up!!
SamsungGalaxySVibrant said:
Hey none of the methods I read here work.
So after playing around with my phone a little bit, I discovered a way to actually lock 3g.
Again I'm not a phone expert, and I discovered this on my own, so use with caution, I don't want to be blaimed for a broken phone.
here is how I did, copy and pasted from another forum I posted these instructions in:
Tired of edge speeds, want to lock in 3g? Okay this next one, do at your own risk ask usual, use with caution. I kinda figured this one out on my own, through trial and error, so I’m not sure how stable or accurate, or even how safe it is to do this. I did notice though, if you screw up, you can use the factory reset code above and things should go back to factory defaults.
Okay…so again do at your own risk. Also by locking into 3g speeds, if you ever go into a non 3g area, or if your 3g signal is poor in your area, then your phone calls will drop and data will stop, unless you go back and set the phone to its default automatic gsm/cdma settings.
Dial: *#*#197328640#*#*
Click [1] debug screen
Click [8] phone control
Click [7] network control
Click [2] band selection
This is where you make a change, default setting is [1] automatic, which means it chooses automatically between gsm/cdma (Edge vs 3g). So we are going to change this and set it to wcdma band which is 3g.
Click [2] wcdma band
Click [1] wcdma all []
Now it should display “select wcdma all bands [*]"
Now on the bottom of your phone, click the menu key, it’s the one next to the home key, now click back, menu again one more time, back one more time, this is just to confirm it set to number 2 wcdma band.
Now click menu key one last time, click end.. and you are done. Now to double verify that the phone is locked into 3g, dial in: *#*#4636#*#*
Then click phone information Then scroll down to “set preferred network type” It should now have listed “wcdma only.” PS, if you tried to do a shortcut, and just set wcdma this way first without doing the lock above, it would just go back to gsm/cdma auto once you exit the screen.
Your phone should now be locked into 3g.
Click to expand...
Click to collapse
Do you have to do this each time you reboot the phone or are the settings get saved somehow?
Just to confirm, i upgraded my firmware to XWJM5 today, and i noticed that in settings > wireless and network > mobile networks, there's a new menu 'network mode' in which there's 3 options - auto / gsm only / wcdma only. Nice touch!
Click to expand...
Click to collapse
Setting to WCDMA only does not change a thing.
Orochi77 said:
Setting to WCDMA only does not change a thing.
Click to expand...
Click to collapse
Well i don't know what's up with your phone, but on my phone, it sets it to pick up wcdma only, like it says.
spark001uk said:
Well i don't know what's up with your phone, but on my phone, it sets it to pick up wcdma only, like it says.
Click to expand...
Click to collapse
Probably has to do with my provider.
Thanks for your answer.
I live on the borderline Edge and G3/H signal towers. When it switches to Edge, the G2 is EXTREMELY slow on the data.
Is there anyway to force the G2 to maintain the G3/H signal and cut out the edge? I live in Rancho Cucamonga, CA and seems that its always on edge instead of the faster speeds. Please help!
Try going to settings> mobile networks
Then make sure that "use only 2g networks" is off
Then go to access points name and select "tmobile data" if that doesn't work go to a tmo store and complain
Sent from my T-Mobile G2 using XDA App
Dialer, #*#*4636*#*#, phone information, scroll down, WCDMA only, reboot phone.
Sent from my G2.
mejorguille said:
Dialer, #*#*4636*#*#, phone information, scroll down, WCDMA only, reboot phone.
Sent from my G2.
Click to expand...
Click to collapse
Dont need to reboot. Also note that if your not in a 3g/4g area it will give you no signal
xile6 said:
Dont need to reboot. Also note that if your not in a 3g/4g area it will give you no signal
Click to expand...
Click to collapse
doesnt work on my g2 - used to work on my previous android phones.
sundar2012 said:
doesnt work on my g2 - used to work on my previous android phones.
Click to expand...
Click to collapse
It's *#*#4636#*#*
GSM/Auto (PRL) seems to hold onto UMTS/HSPA longer than WCDMA (Preferred).
http://forum.xda-developers.com/showpost.php?p=6591742&postcount=2
tried to force the setting but it will go back to the wcdma preferred setting afterwards...anyone see the same?
is the Gsm/AUTO only better?
Not sure. Sometimes it seems like if I back out instead of hitting home it defaults back.
Sent from my T-Mobile G2 using XDA App
According to "T-Mobile" they said there upgrading their towers for the HSPA+ network thats why calls and text messages are not going thru sometimes........Lol!!
I just pressed back after changing the setting on mine and it's sticking.
I set it to GSM Auto (PRL) and it does seem to make a big difference in battery life (3G coverage is kinda funny in my area).
mejorguille said:
Dialer, #*#*4636*#*#, phone information, scroll down, WCDMA only, reboot phone.
Sent from my G2.
Click to expand...
Click to collapse
I get "Connection problem or invalid MMI code."
joebobjoe said:
I get "Connection problem or invalid MMI code."
Click to expand...
Click to collapse
I got that too. But I was connected to EDGE. Worked when I was on H
joebobjoe said:
I get "Connection problem or invalid MMI code."
Click to expand...
Click to collapse
You have the # and * transposed.
Try *#*#4636#*#*. You shouldn't have to try dialing, it should immediately jump into testing mode
So I was playing around with my unlocked note nd I found a selection of bands nd I can select them but not sure yet if it does unable 1700 nd 2100 bands to work on wind mobile or tmobile any ideas ive the pictures
What code did you enter to find those options?
Note 1 had the same menu options.
It doesn't mean anything without actual support in the phone.
I assume, like the Note 1, if you turn those on your phone is going to reject your sim card.
- Frank
Hi just peeked into this and was able to select 1700 band, go to comi bands and select 1700 wcdma and any other missing band and it will be selected. If it makes any difference i dont know since im in a good refarm area for tmobile.
ronj1986 said:
What code did you enter to find those options?
Click to expand...
Click to collapse
*#197328640# nd Debug screen band selection youll find everything
ChodTheWacko said:
Note 1 had the same menu options.
It doesn't mean anything without actual support in the phone.
I assume, like the Note 1, if you turn those on your phone is going to reject your sim card.
- Frank
Click to expand...
Click to collapse
I guess you right I used to own a note 1 but never tried it only if one can try nd see what happens because my sim is not getting rejected but I dont have a wind or tmobile to test with
5800xm_user said:
Hi just peeked into this and was able to select 1700 band, go to comi bands and select 1700 wcdma and any other missing band and it will be selected. If it makes any difference i dont know since im in a good refarm area for tmobile.
Click to expand...
Click to collapse
By the sound of it our hardware just don't have the bands but yet we can select them kinda strange but if you could try using tmobile sim let use know what happens
I was able to do this also, with the leaked XXDLJ2 FW (4.1.2) - I tried with earlier FW before and couldn';t get into the menu - could be total noob error though...
Remove SIM card first.
Then power up Phone, dial #*197328640*
Select: DEBUG/PHONE CONTROL/NETWORK CONTROL/SELECT WCDMA BANDS
from there, it seems you can select ALL, or add the bands you want. (I'm on TMO USA so I selected 1700/1900/2100)
Now, what I don't know is...once you re-insert the SIM ( and you have to power cycle to do that) does the TMO SIM override the changes I just made? I have very weak 4G near my house so I cannot check if 4G is working or not.
CORRECTION: Forget what I said about removing SIM card !!! I was able to access the menu with the SIM inserted, and it looks like my settings are holding ( there's an asterisk next to the WCDMA bands I chose). This is promising!
I did this on a stock rom and after rebooting settings stay the same. Cant tell if itll make any difference since im at work and dont get good coverage. Will report as soon as i can and im on tmobile california
Sadly, it appears that any other setting than Automatic will disable WCDMA altogether - I sat in my car for 20 minutes right under a cell tower tryin to make it work, but was stuck on Edge...as soon as I selected AUTO, my phone jumped to H+ ...and it was on the 1900 Band since the 1700 band is automatically unchecked when switching to Auto. Oh well...gotta wait for the damn TMo refarm then.
The TMUS reframe is killin' me. Neither my house or work are in a reframed area. However, there are several points on my commute that are reframed, and I did have a chance to eat dinner in one. Holy moly is HSPA+ fast! EDGE is virtually useless with these devices.
McNoob said:
Sadly, it appears that any other setting than Automatic will disable WCDMA altogether - I sat in my car for 20 minutes right under a cell tower tryin to make it work, but was stuck on Edge...as soon as I selected AUTO, my phone jumped to H+ ...and it was on the 1900 Band since the 1700 band is automatically unchecked when switching to Auto. Oh well...gotta wait for the damn TMo refarm then.
Click to expand...
Click to collapse
you can select mulit bands that way you dont have to use auto as it does turn em off ,i used the last selection it lets you select what you want
Sorry to check in late but with these changes I notice that my signal sticks to 2g and barely wants to switch to H or H+. Maybe when Im off work Im gonna try to select all wcdma band and switch to wcdma only in network mode. when selecting network mode i notice it changes all the settings in the service menu.
leeroy1034 said:
you can select mulit bands that way you dont have to use auto as it does turn em off ,i used the last selection it lets you select what you want
Click to expand...
Click to collapse
that's what I've been doing - COMBI BANDS, and add GSM 850/900/1800/1900 and WCDMA 1700/1900/2100.
But it didn't work for me, phone remains stuck on EDGE -
I dont think this does much only put me in Edge mode or no data at all. Its weird that theres an option for it. So ya no luck here...
I know some people were having problems keeping or even getting on band 12 with the V20. The people at T-Mobile were useless, even the engineers. After much poking around, I found a solution that works...for me at least and hopefully for you guys.
I had a hard time finding a dialer code that got me to the right menu. This is it. Now, this is, as far ask I know, only for the Tmo version.
*#546368#*918#
Tap Field Test
1. Modem Settings
2. LTE-A CA setting
3. Choose Pcell B4 Scell B17 option
4. Choose Restart Later and hit the back button
5. LTE Band selection
6. Choose Band 12
7. Reboot
(if you still aren't getting band 12, just dial code *#546368#*918# then just do 5 and 6 again.)
I get a solid band 12 connection all the time. This has helped tremendously with battery as well. It's connecting to a much closer tower and not connecting to a band 4 tower a zillion feet away.
Hope that helps!
I am on T-mobile. How do I find out what band I am using? Thanks!
Dialer code doesn't seem to work...
vinyl3131 said:
I know some people were having problems keeping or even getting on band 12 with the V20. The people at T-Mobile were useless, even the engineers. After much poking around, I found a solution that works...for me at least and hopefully for you guys.
I had a hard time finding a dialer code that got me to the right menu. This is it. Now, this is, as far ask I know, only for the Tmo version.
*#546368#*918#
1. Modem Settings
2. LTE-A CA setting
3. Choose Pcell B4 Scell B17 option
4. Choose Restart Later and hit the back button
5. LTE Band selection
6. Choose Band 12
7. Reboot
(if you still aren't getting band 12, just dial code *#546368#*918# then just do 5 and 6 again.)
I get a solid band 12 connection all the time. This has helped tremendously with battery as well. It's connecting to a much closer tower and not connecting to a band 4 tower a zillion feet away.
Hope that helps!
Click to expand...
Click to collapse
fclifton said:
I am on T-mobile. How do I find out what band I am using? Thanks!
Click to expand...
Click to collapse
There's a free app on the play store called Network Cell Info Light.
Just run that and hit the Raw tab and you can see the band.
fclifton said:
I am on T-mobile. How do I find out what band I am using? Thanks!
Click to expand...
Click to collapse
+1 and also how to go back , my speed seems worse now.
edit : well it shows me on band 4 .. hmm
edit 2 : set to airplane mode then back and now its on 12 ...
If it goes back to band 4 , that just means its a better connection?
trobertson said:
Dialer code doesn't seem to work...
Click to expand...
Click to collapse
What's the model number of your phone? Mine is showing LG-H918.
Is that what yours is showing?
vinyl3131 said:
What's the model number of your phone? Mine is showing LG-H918.
Is that what yours is showing?
Click to expand...
Click to collapse
yup. it's a t-mo v20.
I've followed your steps through 4 restarts now and I can't get mine to stick. It switches to Band 12 (verified with LTE Discovery app) after step 6, but once I reboot or go to airplane mode and back, it goes back to Band 4. Any ideas?
Drey070 said:
+1 and also how to go back , my speed seems worse now..
Click to expand...
Click to collapse
Yes that's a common trait of band 12. You get much better coverage but speeds aren't as good. For me, it's still good for what I need plus no dropped calls, awesome connection and no battery drain. Was a worthy trade-off.
Enter the dialer code, modem settings, LTE-A CA, hit the top most option (it'll say all enabled). Back button, LTE Band, band you were on before. Probably band 4.
Or you can just reset network settings and it'll detect everything by itself.
ocelot4ark said:
I've followed your steps through 4 restarts now and I can't get mine to stick. It switches to Band 12 (verified with LTE Discovery app) after step 6, but once I reboot or go to airplane mode and back, it goes back to Band 4. Any ideas?
Click to expand...
Click to collapse
No need to reboot after just doing steps 6 and 7. Should stick.
trobertson said:
yup. it's a t-mo v20.
Click to expand...
Click to collapse
Weird, are you copy and pasting with an accidental space at the end? Make sure the last character is not a blank space but the end actual of the code.
typing it manually.
vinyl3131 said:
Weird, are you copy and pasting with an accidental space at the end? Make sure the last character is not a blank space but the end actual of the code.
Click to expand...
Click to collapse
vinyl3131 said:
No need to reboot after just doing steps 6 and 7. Should stick.
Click to expand...
Click to collapse
Tried it both ways. I was hoping the reboots would help, but no dice. I've been repeatedly selecting Band 12 through the Field Test menu. I'll select 12, then go to the LTE Discovery app, see that it's on Band 4. I'll toggle airplane mode to see if that triggers something, but still no dice. So then back to the Field Test > Select Band 12, rinse and repeat. No matter what I do I can't get it to stick.
What's your network mode setting? Settings > Wireless Networks > More > Mobile Networks > Network mode? I'm using GSM/WCDMA/LTE Auto.
ocelot4ark said:
Tried it both ways. I was hoping the reboots would help, but no dice. I've been repeatedly selecting Band 12 through the Field Test menu. I'll select 12, then go to the LTE Discovery app, see that it's on Band 4. I'll toggle airplane mode to see if that triggers something, but still no dice. So then back to the Field Test > Select Band 12, rinse and repeat. No matter what I do I can't get it to stick.
What's your network mode setting? Settings > Wireless Networks > More > Mobile Networks > Network mode? I'm using GSM/WCDMA/LTE Auto.
Click to expand...
Click to collapse
Yea I'm on auto too. I never restart my phone or use airplane mode so that might be a hitch. Actually, it's kind of a good thing cuz band 4 is always there if you need it.
I'm gonna add the dialer code in my contacts so in case a reboot is called for, can just toggle it back to 12 real quick.
trobertson said:
typing it manually.
Click to expand...
Click to collapse
Just for ****s and giggles, try copying it from my original post and pasting into the dialer. If that doesn't work, that is weird. I'm not sure why it would work for others and not you. Strange.
It's all dependant on what you need. Like I live in Woodstock GA. It's kind of the sticks and I was lucky to get one bar and phone was always hot.
But now getting 5 bars easy.
Just weigh what is most important to you and decide from there. Plus you can always just change the band back to band 4 if you want.
Worked flawlessly. Thanks.
Code not working for me either. I'm definitely Tmobile. I've tried manual and copy/paste. It just disappears.. Thinking it might be something I've frozen.. I'll look.
Nope. Unfroze only thing it could have been in my list and still..
I'm using the 996 unlocked version and I can't seem to set the band ( responds with FAIL). Sad
Sent from my LG-US996 using Tapatalk
T-Mobile h918 here and does not work.
I manually enter code in dialer and hit call and all disappears and no menu. Very odd.
hello!
I am trying to set my network mode to WCDMA because I want to use data and receive calls on the same time since my carrier hasn't enabled VoLTE (that's another story...) but I can't!
The option is there, settings, more, Mobile networks, network mode, i make the change to "GSM/WDSMA auto" but it won't stick! If I go back and come again to this menu, the option is reverted back to "GSM/WDSMA/LTE auto"!
There is no luck either with the LG hidden menu, *#546368#*870# , it says "Connection problem or invalid MMI code".
Could this has to do with my modded kernel?
Any other ideas?
Here is my setup right now:
LG G6 H870
Android 7 Nougat V11i-EUR-XX
Melina kernel 3.18.62-melina-rel7_2017.12.31_uber-6.x_STOCK_zefie
Thank you in advance for your help!
That is a GSM phone. You cannot simply switch to CDMA. Different hardware.
patruns said:
That is a GSM phone. You cannot simply switch to CDMA. Different hardware.
Click to expand...
Click to collapse
what?
If i know that correct, WCDMA = 3g, right?
I want my device to be locked to 3g only, not 4g, because when I receive a call, it drops from 4g to 3g and I lose my internet connection, which is really frustrating if you are in the middle of a video call!