Related
Saw this on the AT&T forums, not sure if it works though.
Originally Posted by BecomingxInsane
I found out that if you go into the dialer and type in *#*#197328640#*#* that it will take you into a menu that will allow you to change it. From the main menu of the ServiceMode screen, select DEBUG SCREEN, then PHONE CONTROL at the bottom, then UE STATE CONTROL. From there select CHANGE RAT TO WCDMA to enable 3G only, and select CHANGE RAT TO GSM for 2G only.
this doesnt do anything at all .
i live in an area with no 3g coverage.. despite att sending me emails stating its be "coming" since last summer. anyways...
I set the phone to 3g only mode and I still get signal
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".
This is actually on old hack I used from the G1 forum. This is really useful if you are in an area where 4G or 3G is weak and you phone keeps switching back and forth to edge. Very annoying...
Install AnyCut from market
Open AnyCut and click NEW SHORTCUT
Click ACTIVITY
Scroll down to "Phone Info" and select that.
I renamed the shortcut "FORCE 4G" but you could name it anything.
Click OK
Now open the shortcut on your home screen, and scroll down to the bar that spans across the whole screen. This is the bar that controls all your network types listed here.
WCDMA preferred - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 3G is favored more.
GSM only - The GSM phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
WCDMA only - The GSM phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all. (FORCE 4G!)
GSM auto (PRL) - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more. This one is a bit confusing to me since PRL is associated mostly with CDMA technology and not GSM technology.
CDMA auto (PRL) - The CDMA phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more.
CDMA only - The CDMA phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
EvDo only - The CDMA phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM/CDMA auto (PRL) - Some phones are equipped with both GSM and CDMA capabilities. This setting appears to just have the phone attempt to stay connected to the data communication type that works the best. (MY FAVORITE ON G2X)
Unknown - If none of the above fit or the phone is acting weird as far as connecting to the carrier, you will see your preferred network type is set to this
Im sure this hack works on all android devices, less options will show for phones w/o that capability.
BetterCut will obviously also work and youll be able to customize an icon for the shortcut
Menu, settings, wireless and networks, mobile networks, network mode, wcdma only.
Won't that do the same thing without all the work?
*#*#4636#*#*
Phone information
Scroll down
Change WCDMA preferred to WCDMA Only
Same thing as well... If youre that desperate for "4g", however, if you lose 4g/3g you lose ALL SERVICE, I believe. I had played with these settings on my n1 last year. In the end, I found WCDMA preferred was the most reliable ;-)
Sent from my T-Mobile G2 using XDA App
DelinQuentisDQ said:
Menu, settings, wireless and networks, mobile networks, network mode, wcdma only.
Won't that do the same thing without all the work?
Click to expand...
Click to collapse
He's talking about changing the hidden menu. There are two menus, if you change it in the non-hidden menu and not on the hidden menu, is different.
This should probably be moved to themes and apps or general. Nothing really developed here, no offense.
jayohwhy said:
He's talking about changing the hidden menu. There are two menus, if you change it in the non-hidden menu and not on the hidden menu, is different.
Click to expand...
Click to collapse
This isn't the hidden menu this is just the phone info menu that you can access with *#*#4636#*#*
Thanks! I skirt the edge of society and there are a few ROMs that I really like to use that don't have this option built-in. Bionix has it but CM7/Faux and others do not have the option available from the mobile networks menu. I'm sure it adds to radio life if you set it to stick with the highest signal since the phone won't be switching towers.
I have a post about this in the Q&A section, but have any of you experience the G2X using only 1X or CDMA data frequencies other than 4g?
Dial *#*#4636#*#* go into phone information scroll down and choose wcdma only and your done default is GSM/WCDMA auto (PRL)
samsungcaptivates said:
Dial *#*#4636#*#* go into phone information scroll down and choose wcdma only and your done default is GSM/WCDMA auto (PRL)
Click to expand...
Click to collapse
please excuse my ignorance, but what would be the purpose of this?
so that it dosent jump around from 3g 2g if its auto and your not using data it automatically defaults to 2g i think to save battery then switches to 3g oir hsdpa 3.5g or what att calls 4g on demand this keeps it locked on wcdma or 4g to my knowledge
samsungcaptivates said:
so that it dosent jump around from 3g 2g if its auto and your not using data it automatically defaults to 2g i think to save battery then switches to 3g oir hsdpa 3.5g or what att calls 4g on demand this keeps it locked on wcdma or 4g to my knowledge
Click to expand...
Click to collapse
seems like it reverts back to auto after a reboot
This makes the phone work on Verizon, right?
MikeyMike01 said:
This makes the phone work on Verizon, right?
Click to expand...
Click to collapse
See that's what I thought too. ATT = GSM, Verizon/Sprint = CDMA.
kwaalude said:
seems like it reverts back to auto after a reboot
Click to expand...
Click to collapse
Mine goes back to auto as soon as I back out of the menu. Am I doing something wrong by using the back button?
wouldn't this, by locking it, render the phone useless when traveling out of area that support that network?
MikeyMike01 said:
This makes the phone work on Verizon, right?
Click to expand...
Click to collapse
roflmao 10char
vbanh said:
Mine goes back to auto as soon as I back out of the menu. Am I doing something wrong by using the back button?
Click to expand...
Click to collapse
Mine does the same thing. did you figure out how to do it? I have been trying but I couldn't do it
I found this here in the forum someone posted and it worked for me thanks for him.
champoux said:
Here's an alternate method I puzzled out (and then afterward discovered it was already posted in thread 751237. It's a bit faster and has the advantage of surviving flight mode; still gets reset upon restart.
Dial *#*#2263#*#* (mnemonic: *#*#BAND#*#*).
This brings up the Band selection menu which you can also access from the above method by dialing *#*#197328640#*#* then going into DEBUG SCREEN > PHONE CONTROL > NETWORK CONTROL.
Select [3] GSM BAND
Select [1] GSM ALL
Select "Select GSM All Bands"
Menu key > END
To switch back, go to *#*#2263#*#* and select [1] AUTOMATIC > Select GSM &WCDMA All Bands > Menu key > END.
Something else I'm trying out is switching the acquisition order so when it is in "dual" mode, it'll try GSM first. Even so, it will still switch to 3g if there's enough signal. Seems to help keep it on 2G though, when it would otherwise cling to a faint 3g signal with 0-1 bars.
To do that, go into the NETWORK CONTROL menu (see above) then
Select [4] AQUISITION ORDER (yes they misspelled it)
Select [2] GSM->UMTS
Select "Select ACQ_ORDER_GSM_FIRST" (at least they abbreviated it correctly)
Menu key > END
This option does not get reset upon phone restart.
Click to expand...
Click to collapse
I did this and now my sms or text messaging don't work help
I had this happen too, but I didn't use the above method. Don't know what happened, but when I checked message settings, I had no number under "Message Center" did a quick google search and found an ATT number "+13123149810"...now it works again.
Did u call the number
Never mind i fixed it.but now in my network type it says umts is that faster then hsdpa and are there any other number sequences i can use to tweak my phone
I'm getting RAT restricted, which I got on my Vibrant but never my Captivate...
How can I change to show the different bands?
Sent from my Samsung Infuse 4G
wcdma and cdma have nothing to do with each other. wcdma is also known as umts, the base part of 3g (and 4g when hspa+). hspa is a protocol that runs on top of this cell technology providing higher data speeds. gprs (known as edge, and some times called gsm) is 2g. you can turn one or another off so the phone does not seek and connect to both services, which could save battery life. even though ive yet to see my phone find less than 3g/4g in houston, i still dont turn it off, just in case.
The Jack of Clubs said:
wcdma and cdma have nothing to do with each other. wcdma is also known as umts, the base part of 3g (and 4g when hspa+). hspa is a protocol that runs on top of this cell technology providing higher data speeds. gprs (known as edge, and some times called gsm) is 2g. you can turn one or another off so the phone does not seek and connect to both services, which could save battery life. even though ive yet to see my phone find less than 3g/4g in houston, i still dont turn it off, just in case.
Click to expand...
Click to collapse
Thanks, John Madden.
So, I have the i5800 and have used this forum for getting advise and setting up my phone to work well..... but now I have a problem and need advise....
I bought my i5800 in the UK and brought it with me to Canada, now when I put any of the Virgin,Bell,Telus(HSPA) SIM cards in it, it does not register to the network.
I have used my phone with my friends Rogers(GSM) SIM and have no problems with it, but I bought a Virgin SIM card, assuming all will be good and topped it up with $100 and now am stuck
Spoke to Samsung customer support who say that it wont work since in Canada the model number is i5800L which has some special functions in it which are not in the i5800 ..... so am I scr..ed?
asax said:
So, I have the i5800 and have used this forum for getting advise and setting up my phone to work well..... but now I have a problem and need advise....
I bought my i5800 in the UK and brought it with me to Canada, now when I put any of the Virgin,Bell,Telus(HSPA) SIM cards in it, it does not register to the network.
I have used my phone with my friends Rogers(GSM) SIM and have no problems with it, but I bought a Virgin SIM card, assuming all will be good and topped it up with $100 and now am stuck
Spoke to Samsung customer support who say that it wont work since in Canada the model number is i5800L which has some special functions in it which are not in the i5800 ..... so am I scr..ed?
Click to expand...
Click to collapse
I don't see any issue with it. I have a i5800D and I run on Telus/Bell.
In fact, there is another user on here with a i5800L and he/she is on Telus as well so it should be no problem. Are you using a V2 Telus SIM? Go down to a Telus or Bell store and ask them to try one of their SIM cards. That will tell you for sure because Virgin runs on Telus/Bell. In that case you need to unlock the SIM from Virgin maybe?
*Edit* The users name is bootsplash: http://forum.xda-developers.com/member.php?u=4247544
Thank you Spitlebug, but
According to what Samsung tells me - The i5800L and i5800D are both North American Models and work on the 3G/HSPA.
I guess what I'm trying to say is that I cant access the radio frequencies for HSPA. Even when I go Internet surfing using my friends (Rogers) SIM, it is extremely slow, due to the above fact, since I am forced to use EDGE.
Last night, I saw this thread, however, I have a slightly different menu setup.
androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html
And I cant select the 850, all I can do is select all, which still does not register my sim
i think flashing the rom will solve ur problem... find stock roms in development section and flash ur origin rom..
I thought so too Hadi_xman,
I have flashed it with the i5800DLKDA and it went into a loop, so I flashed it back to the CM7.1 Alpha that I was using.
My phones details are :
Baseband Version : I5800XXJP4
Kernel Version : 2.6.32.9 [email protected]
Mod Version : Cyanogenmod 7.1.0-i5800-kang
Buid Number : GWK74
I'm with hadi_xman,
It should work. 3g on my phone doesn't even work. I think it may be the service area, but even in Vancouver it doesn't work either.
I am starting to think Bellus 3g service is a sham.
I am running Kyrillos' ROM 9.5. I am not sure if it is the ROM itself, but it now identifies my phone as a plain jane i5800.
Quesrion, and I am no expert, but what would happen if you flashed the phone with a i5800 OPS?
Sent from my GT-I5800
I'm flashing it with this file :
apollo_0531.ops
Which file do you suggest?
Thanks in Advance.
asax said:
I'm flashing it with this file :
apollo_0531.ops
Which file do you suggest?
Thanks in Advance.
Click to expand...
Click to collapse
Its correct. If u get stuck at boot, hold volume up+down, home and power key to boot into recovery. Then wipe data from there
Cheers
Sent from my GT-i9003 powered by MIUI
asax said:
I'm flashing it with this file :
apollo_0531.ops
Which file do you suggest?
Thanks in Advance.
Click to expand...
Click to collapse
I think I was using the same OPS file. What network modes are available for your phone under:
Settings->Wireless and Network->Mobile Networks->Network Mode
Sent from my GT-I5800
Bscraze, so are you suggesting I retry flashing it with the i5800DTLKA??
I really appreciate you taking the time to reply Spitlebug - Thank you.
The options are :
GSM/WCDMA (auto mode) - currently selected
WCDMA Only
GSM Only
GSM/WCDA (WCDMA Preferred)
_______________________
Just a quick note though -
Could you tell me what your setting when you dial -
* # * # 1 9 7 3 2 8 6 4 0 # * # *
The phone will automatically take you to a screen called:
SERVICE MODE
AND YOU WILL SEE THESE OPTIONS:
----------------------
[1] DEBUG SCREEN
[2] VERSION INFO
[3] UMTS RF NV
[4] GSM RF NV
[5] AUDIO
[6] COMMON
[7] QXDM LOGGING
----------------------
all these options are written very very small so you will have to touch the screen very accurately to get the right one... so select them in the following order:
[1] Debug Screen
+
[8] Phone Control
+
[7] Network Control
+
[2] Band Selection
Once you Tap on "Band Selection" you will have a screen stating these 3 Options:
-------------------------
= BAND SELECTION =
[1] Automatic [*]
[2] WCDMA Band []
[3] GSM Band []
-------------------------
The Asterisk ' * ' indicates what option has been chosen, in this case the selection is on "AUTOMATIC" which is correct: the Phone will pick the best Network to work, we just have to make sure that the Phone is searching in all the Possible Networks because by Default some of them are Disabled.
So Tap on:
[2] WCDMA Band []
and on the screen you will see appearing the following Options:
----------------------------------
= WCDMA BAND =
[1] WCDMA ALL []
[2] WCDMA 2100 []
[3] WCDMA 1900 []
[4] WCDMA 900 []
[5] WCDMA 850 []
-----------------------------------
Here it is not allowing me to chose any option other than ALL and 2100.
What do you see?
Also in the tab NETWORK CONTROL
When you choose GCF, what are your settings there?
Just a hunch, but I have a feeling something in the service menu has been disabled and I for now can't figure it out....
I am able to select them all, I see all the same options. Perhaps you need to flash a AndroidModem that will allow you to. The hardware should be fine....
Sent from my GT-I5800
GCF says:
[] GSM/(E)GPRS/WCDMA REL6
[] REL5
Sent from my GT-I5800
Hrm, I have a better solution... My wife has a Virgin Mobile SIM. I could try it in my phone, but TELUS might lockout my phone.
Sent from my GT-I5800
How do I flash the Androidmodem and can you point me to the file... please?
I don't know if there is a Galaxy 3 specific Telus Modem.
I do believe the latest Froyo Telus Modem is TLJL3 though. You will have to ask someone a little more familiar with it. I think you can flash them with CWM though, so that's a bonus.
asax said:
Bscraze, so are you suggesting I retry flashing it with the i5800DTLKA??
I really appreciate you taking the time to reply Spitlebug - Thank you.
The options are :
GSM/WCDMA (auto mode) - currently selected
WCDMA Only
GSM Only
GSM/WCDA (WCDMA Preferred)
_______________________
Just a quick note though -
Could you tell me what your setting when you dial -
* # * # 1 9 7 3 2 8 6 4 0 # * # *
The phone will automatically take you to a screen called:
SERVICE MODE
AND YOU WILL SEE THESE OPTIONS:
----------------------
[1] DEBUG SCREEN
[2] VERSION INFO
[3] UMTS RF NV
[4] GSM RF NV
[5] AUDIO
[6] COMMON
[7] QXDM LOGGING
----------------------
all these options are written very very small so you will have to touch the screen very accurately to get the right one... so select them in the following order:
[1] Debug Screen
+
[8] Phone Control
+
[7] Network Control
+
[2] Band Selection
Once you Tap on "Band Selection" you will have a screen stating these 3 Options:
-------------------------
= BAND SELECTION =
[1] Automatic
[*]
[2] WCDMA Band []
[3] GSM Band []
-------------------------
The Asterisk ' * ' indicates what option has been chosen, in this case the selection is on "AUTOMATIC" which is correct: the Phone will pick the best Network to work, we just have to make sure that the Phone is searching in all the Possible Networks because by Default some of them are Disabled.
So Tap on:
[2] WCDMA Band []
and on the screen you will see appearing the following Options:
----------------------------------
= WCDMA BAND =
[1] WCDMA ALL []
[2] WCDMA 2100 []
[3] WCDMA 1900 []
[4] WCDMA 900 []
[5] WCDMA 850 []
-----------------------------------
Here it is not allowing me to chose any option other than ALL and 2100.
What do you see?
Also in the tab NETWORK CONTROL
When you choose GCF, what are your settings there?
Just a hunch, but I have a feeling something in the service menu has been disabled and I for now can't figure it out....
Click to expand...
Click to collapse
Yea retry. On my phone sometimes after flashing it won't boot, I have to go into recovery mode and wipe myself
Cheers
Sent from my GT-i9003 powered by MIUI