Getting HD Voice on GSM/2G to work - Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help &

When I'm calling someone and my phone switches from 3G to 2G due to better signal, the audio quality drops to standard quality, although my provider supports HD Voice on GSM as well.
My goal is to avoid this, by enabling the feature for GSM. The only problem is, I haven't found a way to do it, yet.
WB-AMR can be changed via the *#0011# Service-menu, but this only affects the UMTS setting not the GSM one.
WB-AMR can also be set by the CSC's customer.xml, but I can't seem to find a variable to do it for GSM.
My guess would be directly editing the modem and its variables via ADB, the file system or something like this, if that's possible.
Do you have an idea where to start?

DokiRenault said:
When I'm calling someone and my phone switches from 3G to 2G due to better signal, the audio quality drops to standard quality, although my provider supports HD Voice on GSM as well.
My goal is to avoid this, by enabling the feature for GSM. The only problem is, I haven't found a way to do it, yet.
WB-AMR can be changed via the *#0011# Service-menu, but this only affects the UMTS setting not the GSM one.
WB-AMR can also be set by the CSC's customer.xml, but I can't seem to find a variable to do it for GSM.
My guess would be directly editing the modem and its variables via ADB, the file system or something like this, if that's possible.
Do you have an idea where to start?
Click to expand...
Click to collapse
Change your phone S3 isn't compatible

Related

[REF]/[PRJ] Updated: 7/24 Entering Service Menu / Hidden Setup Menus

Team,
***First off I am not responsible for damaged that occurs to any phones. Make sure you know what you are doing before making changes!!!***
I was having an issue with the mic gain recording distorted live concert audio so I was wondering how to access extended features on the Galaxy S.
The following is the code to dial in to access the hidden Service Mode menus.
Example how to access menus:
Dial *#*#197328640#*#*
This allowed me to adjust the mic gain to get better audio recordings at loud live concerts.
There seems to be several hidden menus on the Galaxy S and I am wondering how many more there are. Which led me to post this thread.
If any of you can find more hidden menus post them and i'll add them to this OP.
So far I know about:
Hidden Menus:
Service Menu: *#*#197328640#*#*
GPS Hidden Menu: *#*#1472365#*#*
Battery and General Info: *#*#4636#*#*
GTalk Service Monitor: *#*#8255#*#*
LCD / Speaker Test: *#0*#
Factory Data Reset: *#*#7780#*#*
Camera Information: *#*#34971539#*#* (Do Not Use The First Option "update camera firmware" you will break your camera)
Change Power Button Action: *#*#7594#*#*
Show IMEI Number: *#06#
Be careful in Service Mode that you know what it is your changing. If you hork up your phone you can reset it by doing a Factory data reset in Settings / Privacy / Factory data reset.
I would do a nandroid backup before making changes if your just experimenting.
I will add reference material below as I can:
________________________________________________________
Service Menu:
The following popular data communication technology is associated with each cell carrier type:
GSM = GPRS (2g), EDGE(2g), UMTS(3g), WCDMA(3g), HSDPA(3g) {Cell Carrier examples: AT&T and T-Mobile}
CDMA = CDMA*(2/3g) EV-DO(3g) WiMax(3/4g) {Cell Carrier examples: Verizon and Sprint}
Preferred Network types:
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.
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. (Maybe the Samsung Galaxy S will take advantage of this???)
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.
_________________________________________________
There are quite a few test .apk's in the system.app folder I'm sure each of them can be launched with a specific code.
Updated OP with more codes
TGA_Gunnman said:
I was having an issue with the mic gain recording distorted live concert audio so I was wondering how to access extended features on the Galaxy S.
The following is the code to dial in to access the hidden Service Mode menus.
Example how to access menus:
Dial *#*#197328640#*#*
This allowed me to adjust the mic gain to get better audio recordings at loud live concerts.
Click to expand...
Click to collapse
I'm just wondering specifically what settings you adjusted and to what level to make this possible?
Just got home from a show and tried recording a short bit to see how it came out before potentially wasting my time doing the whole set, and the sound is terrible.
Itd be interesting. if we can access the volume buttons so we can use this to access the lock screen instead of just using the power button
Sent from my SGH-T959 using XDA App
I've found another one which is related to Touch screen Version Firmware update...
*#*#2663#*#*
with adw launcher you can long press on the desktop, create shortcut to a custom activity without the need of secret codes
holysmokesbatty said:
I'm just wondering specifically what settings you adjusted and to what level to make this possible?
Just got home from a show and tried recording a short bit to see how it came out before potentially wasting my time doing the whole set, and the sound is terrible.
Click to expand...
Click to collapse
Did you ever find out what to adjust?
gregc2009 said:
Did you ever find out what to adjust?
Click to expand...
Click to collapse
i would like to know this as well, in case i go to another concert i dont wanna come home and find out that the sound is horrible
I added a program here that will access these menu's for you: http://forum.xda-developers.com/showthread.php?t=772690
Has anyone been able to successfully keep the phone on the 3G only setting like my slide could and always got great 3G signal? I set this on my vibrant and it goes back to the GSM and CDMA (PRL) setting and jumps from 2G to 3G all day long.
anyone know if there's a way to disable or at least turn down the sensitivity of the noise reduction through these menus?
slinky1914 said:
Has anyone been able to successfully keep the phone on the 3G only setting like my slide could and always got great 3G signal? I set this on my vibrant and it goes back to the GSM and CDMA (PRL) setting and jumps from 2G to 3G all day long.
Click to expand...
Click to collapse
*#*#197328640#*#*
debug screen
phone control
network control
band selection
wcdma band
wcdma all
menu->end
Works for me.
Any ideas what the ramdump in common/diag config does?
GCF is a feature to auto reply to every email - lol think I will leave one that alone.
just tried this and....
shootr said:
*#*#197328640#*#*
debug screen
phone control
network control
band selection
wcdma band
wcdma all
menu->end
Works for me.
Click to expand...
Click to collapse
got a message that says RAT selection option is restricted?
Please add the code that is used to dump the system logs to the SD card, i don't recall what it is right now.
EDIT:
*#9900#
i did the fw updates on *#*#2663*#*# and now only my menu and back buttons illuminate and none of the work i was on jpm froyo and i odined back to stock twice and still not working can anyone help???
edit:i went back into the menu on freshly odined jfd
Same here. Did you ever find out the settings for the audio to record a concert easily?
Sent from my SGH-T959 using XDA App
hey i have a lot of troubles with this this, the people says that the don't hear me well so... i think it's a problem of my microphone. There's any way to improve this? because i have to shout a lot haha
Great find man..
Sent from my XDA app cuz I'm stalking your mom....

[Q] Changing the Radio Frequencies on a Samsung GT-I9000

Phone Radio Compatibility Details Requested (both general and US T-mobile specific)
I have been doing a lot of researching regarding this phone and all of its cousins as well as how they will operate on the various US carriers. I have the following requirements for my next phone purchase:
1) Must be an Android device
2) Must have front facing camera (for international video calls to relatives)
3) Must be GSM (for compatibility with local prepaid SIM cards when traveling)
As AT&T and T-mobile are the only two carriers in the US (the only two viable ones at least, I don't know if any smaller carriers use GSM) and I refuse to renew my contract with AT&T that narrows it down to one option.
I have been researching the different carrier frequencies, both what they are and why they are different. It seems T-mobile decided to be special and as a result it is nearly impossible to get a T-mobile high speed compatible phone unless you purchase it from them directly. I almost want to call that evil, but it is easy to believe that is just a bad side effect rather than the intent.
Anyways, as we all know the Galaxy S has been severely nerfed by everyone except for Sprint. If Sprint only had a GSM phone that I could use internationally I would pick up their model, but alas it is not. I will not purchase the Vibrant because it lacks the front facing camera. My last option is the unlocked Galaxy S available abroad unless I am missing something.
Most of the online retailers I have seen all list different band frequencies and not even all of them have it divided into 2G/3G frequencies. I have some specific questions, but if you have any useful information for me I would appreciate it.
Question 1: Do the online retailers just suck, or are there truly many different frequency bands for the unlocked Galaxy S?
Question 2: Does anyone know of a Galaxy S phone that is fully compatible with T-mobile in the US (not the Vibrant, I need the front facing camera)? If not, would it be good enough?
Question 3: The radio bands I have ready about are usually divided into 2G and 3G categories. Is the phone radio physically divided into one for 2G and another for 3G, or is it the same radio and those are the frequencies USUALLY used by the different speeds? If I see the appropriate T-mobile high speed frequencies listed under 2G, would that mean the radio is in fact compatible with the T-mobile 3G because the radio can talk on that frequency, or is the hardware actually different and unable to comprehend the 3G speeds?
Bumping my own thread and also wondering if anyone has any recommended vendors to buy the international Galaxy S in the United States.
i bought mine from handtec.co.uk and it is working ok..
beware though that at&t unfort. in my error has been slowly getting rid of 1900 3g and more 850 3g which does not work on the phone..
at least at home the microcells are 1900 3g.
Radio chip/antennae changes?
It seems the internal Galaxy's electronics is all the same or modular. Is there a chance to take the radio module out of T-Mobile body and put it into the Sprint's nice hardware? How easy it is to obtain the desired component?
related post: http://forum.xda-developers.com/showthread.php?t=718041
[Q] Which CSC (Phono/radio) version will give the best results?
I'm wondering what CSC-version (Or is it the Phone/Modem?) will give the best results in The Netherlands with Vodafone as telecom provider, or maybe... where can i find the stock version of the radio (and is it possible to use it with a root?)
I'm using Froyo (I9000XXJPC) - Rooted, but I'm wondering if my connection isn't worse since updating, I believe my 3G/HSDPA is weaker since then.
Anyone the same problem?
I also have the same problem, but already since upgrading to jm1 trough KIES.
I think we need a i9000XEN CSC.
shumix said:
I also have the same problem, but already since upgrading to jm1 trough KIES.
I think we need a i9000XEN CSC.
Click to expand...
Click to collapse
Is the "i9000XEN CSC" the stock one?
I'm not on JPC but changing from JM3 to JP2 (modem) actually makes my GSM signal and wifi sort of worse, dropping 1-2 bars at the exact same location compare to JM5
CSC has NOTHING to do with reception or 3g whatsoever... its just branding stuff and APN etc...
the MODEM file is the one you need to look out for!
Right now i'm on JM1 (rev03) with the appropriate modem file and i have no problem whatsoever!
BackfireNL said:
CSC has NOTHING to do with reception or 3g whatsoever... its just branding stuff and APN etc...
Click to expand...
Click to collapse
You sir, are wrong.
I have a Bell I9000M and flashed the new HK JP2 Froyo to it. I lost my 850mhz UMTS Band. I then flashed back to stock JH2, including the modem and still no band. The only thing that fixed it was doing the *#272*xxxx# CSC select. Once I did that, bingo, 850MHZ Reception.
I know what you're saying SHOULD be correct, but unfortunately, it is not.
I'm still correct! CSC contains carrier costumizations. Which also can contain settings to ENABLE the 850mhz radio band!
BackfireNL said:
I'm still correct! CSC contains carrier costumizations. Which also can contain settings to ENABLE the 850mhz radio band!
Click to expand...
Click to collapse
So, enabling/disabling a band doesn't have anything to do with reception?
So, when I get no reception because I'm in an 850MHZ ONLY area, which is disabled by the CSC. The CSC has nothing to do with it? I don't see the logic there, but alright.
You can use whatever CSC you want as long it enables the 850MHz band. It doesnt matter what CSC...
Modem file is the one that contains the drivers for the radiochip etc... A better modem file means that you can get higher 3G/Wifi speeds or even have better reception.
The CSC only contains the setting to enable the band.. nothing more nothing less
BackfireNL said:
You can use whatever CSC you want as long it enables the 850MHz band. It doesnt matter what CSC...
Modem file is the one that contains the drivers for the radiochip etc... A better modem file means that you can get higher 3G/Wifi speeds or even have better reception.
The CSC only contains the setting to enable the band.. nothing more nothing less
Click to expand...
Click to collapse
Cool man, I was directly referring to:
BackfireNL said:
CSC has NOTHING to do with reception or 3g whatsoever... its just branding stuff and APN etc...
the MODEM file is the one you need to look out for!
Right now i'm on JM1 (rev03) with the appropriate modem file and i have no problem whatsoever!
Click to expand...
Click to collapse
Which was wrong. No service due to CSC = No Reception. Plain and simple. You can argue what you meant all day, it's not what you said.
I'm done with this. I apologize to the OP for having this thread turn into this childishness.
Have a good day.
BackfireNL is right. Selecting a CSC indicates which band/frequency the radio will use according to the place you are.
dnsp said:
BackfireNL is right. Selecting a CSC indicates which band/frequency the radio will use according to the place you are.
Click to expand...
Click to collapse
Uhh, that's what I said, disagreeing with his "CSC has NOTHING to do with reception" comment.
Just so you two know, the actual Merriam-Webster definition of reception is:
"the act or action or an instance of receiving"
CSC not allowing 850MHZ = No Reception.
If you're taking about small increases/decreases in quality of reception, then absolutely yes, CSC has no effect. But that is not what was stated.
Confused...
Okay... thanx, both of you!
I've learned a lot new thinks...
Finally... I understand that I must use the Modem file if I have issues with the reception of the 3G network, but which version should give me the best results for my provider (Vodafone/Netherlands) and the new Froyo (JPC), and where can I get that modem file?
The Radio Chip in the SGS
ht tp://ww w.triquint.com/prodserv/more_info/proddisp.aspx?prod_id=TQM6M9014
(remove spaces)
That is the chip, now if I understand that right, it is a Pentaband radio. So that would mean it is all locked out in software.
No?
Users in the U.S., What Radio are you using?
I am running CFLagFix1.60(StockXXJF3) and using AT&T.
Everything works fine, except for a weak signal.
I can receive and make calls, but at times have calls dropped.
My home is in an area where there is a weak signal.
I am not try to get 3G, just a stronger signal.
May not be possible, but worth a try.
Signal is fine when not at home.
I have tried the following Radios without boosting the signal.
MODEM_I9000XXJF3.tar
I9000UGJH2-Modem
MODEM_I9000XXJP2.tar
bell_I9000_radio - No signal with the bell_I9000_radio
Any suggestions, or is it a lost cause?​
Is this a haiku?
PS It would help telling us what carrier you are using it on.

wCDMA Milestone (mod)

Doing this will boost call QUALITY & response time between the tower and your phone. It also seems to cut alot of the background noises as well.
1. open dialer
2. *#*#4636#*#*
3. change GSM Auto (prl) to wCDMA preferred.
4. click Enable QXDM SD Log
5. SMSC: -refresh, then long hold update.
6. Scroll to top, run ping test...
7. Once done, hit HOME.... NOT BACK!
if you run into any issues, swap back to GSM-Auto (prl) then update your SMSC number again. By default it loads as GSM-Auto, so if you reboot, you will have to swap it again.
-=-=-=-=-=-
Ive been running like this for around 10 days now and & definitely notice a good gain in call quality, not only in response time, but clarity as well. I don't get any background static and outside wind/other noise seems to drop as well also.
-Leave me feedback and let me know what you think if you try it.
Is this working fpr European Phones (in my opinion Germany) too?
gmbhneo said:
Is this working fpr European Phones (in my opinion Germany) too?
Click to expand...
Click to collapse
I have EUR version of XT720 and using it with T-Mobile USA; I tried that method, it works.
Ph0z3 said:
Doing this will boost call QUALITY & response ti
1. open dialer
2. *#*#4636#*#*
3. change GSM Auto (prl) to wCDMA preferred.
4. click Enable QXDM SD Log
5. SMSC: -refresh, then long hold update.
6. Scroll to top, run ping test...
7. Once done, hit HOME.... NOT BACK!
Click to expand...
Click to collapse
1-2-3 no problem
4_ I dont have that option anywhere
5_refresh Ok , but log hold update doesnt change anything ??????
6-7 no problem
I dont really feel any difference . ill tell you in a couple days
also there must be a way to set this on boot or make this persistant , I noticed if you go back in that menu and use back to exit it will also revert changes to default ...
gmbhneo said:
Is this working fpr European Phones (in my opinion Germany) too?
Click to expand...
Click to collapse
yes it is. like i said, if it doesnt, change back... no harm done.
DAGr8 said:
4_ I dont have that option anywhere
5_refresh Ok , but log hold update doesnt change anything ??????
Click to expand...
Click to collapse
4. Not all phones will... it varies with service.
5. should automatically update, if nothing pops up saying it saved... skip it.
DAGr8 said:
I noticed if you go back in that menu and use back to exit it will also revert changes to default ...
Click to expand...
Click to collapse
thats why i said USE HOME... NOT BACK. Also im looking at the radio file to figure out a boot sequence to make this permanent, once i get it solved, ill post it.
Ph0z3 said:
thats why i said USE HOME... NOT BACK. Also im looking at the radio file to figure out a boot sequence to make this permanent, once i get it solved, ill post it.
Click to expand...
Click to collapse
ok I know this is confusing but what I meant is if I apply the changes . then hit menu . I do some testing and then I go (again) in *#*#4646 etc etc , even if I dotn do anything and I just hit 'back' it will reset the settings ...
btw got my first compliment today someone said my phone sounded louder then usual 9normally its the otherway aroud ppl say its not loud enough ...
Did it and the network xhanged from GPRS to HSPA will test it and report here
Sent from my Milestone
Im sure ill get it at some point or another.. so here is it...
WHAT IS wCDMA... and why is it better than GSM?
-=-=-=-=-=-=-=-
wCDMA (Wideband Code-Division Multiple Access), an ITU standard derived from Code-Division Multiple Access (CDMA), is officially known as IMT-2000 direct spread. wCDMA is a third-generation (3G) mobile wireless technology that promises much higher data speeds to mobile and portable wireless devices than commonly offered in today's market.
wCDMA can support mobile/portable voice, images, data, and video communications at up to 2 Mbps (local area access) or 384 Kbps (wide area access). The input signals are digitized and transmitted in coded, spread-spectrum mode over a broad range of frequencies. A 5 MHz-wide carrier is used, compared with 200 KHz-wide carrier for narrowband CDMA.
Summary:
1.WCDMA is a 3G technology while GSM is a 2G technology
2.GSM is slowly being phased out in favor of CDMA
3.GSM is still more widespread than CDMA
4.WCDMA and GSM uses different frequency bands
5.WCDMA offers much faster data speeds than GSM
6.WCDMA would soon replace GSM
It's stated in this thread that it's non-dangerous as you can just reboot the phone / change it back. I'll just pop in here with a word of caution: I couldn't.
I have received a significant increase in speed and response time on my data connection since performing this change. I've received significant performance/quality on my conversations over the phone. I can still receive SMS's, however I can no longer send any...
When I attempt to change it back it's already on "GSM auto (PRL)", and I can no longer get the "Enable QXDM SD Log" button when changing to "WCDMA preferred".
I've attempted to change back by ignoring the step that included the "Enable QXDM SD Log" button, but to no avail.
I've attempted to re-flash GOTs 2.2.1 as that should include the most partitions of any flashable ROM, and I had hoped it re-wrote the radio. Apparently it did not.
I basically have a looong night of debugging ahead of me Such is the nature of modding.
[edit 1]
My phone is a UK Milestone, one of the first models. I am not sure of the technical term for the model.
[edit 2]
Solved it.. The SMSC number was set to 5p41450522.
After some time I found the SMSC (SMS center - responsible for sending SMS on the network) number from my provider. For TDC in Denmark it's +4540390999.
Pressed UPDATE and home button.
NOTE: For non-english phones the menu is translated, and as such the 2 buttons next to the SMSC field may be named the same. The left most button is UPDATE, the right most button is REFRESH. Some languages tend to translate those two words to the same.
The default setting, GSM auto (PRL), will switch to wCDMA when there's a load on the network connection. That is, with a call, a download, or something similar, the phone will accomplish exactly what's been done manually.
The difference is that with this setting, the phone will almost always prefer 3G, meaning you won't have the benefit of using the less power-consuming connection when there's very little load. There has to be almost no traffic for it to step down to 2G.
It won't affect call quality, and if it does, I'm going to go out and state that it's simply a placebo effect. Regardless of which setting you choose, call quality will be the same, as both will have the phone switch to 3G during a call anyways.
One thing you may notice, though. With it set to WCDMA preferred, you may notice a less reliable data connection, and perhaps some dropped calls if you're not in an area with good 3G coverage. GSM auto will prefer 2G network when reception is low, helping to ensure you stay connected.
jlor said:
Solved it.. The SMSC number was set to 5p41450522.
Click to expand...
Click to collapse
Glad you got your issue solved.
xslntx said:
One thing you may notice, though. With it set to WCDMA preferred, you may notice a less reliable data connection, and perhaps some dropped calls if you're not in an area with good 3G coverage. GSM auto will prefer 2G network when reception is low, helping to ensure you stay connected.
Click to expand...
Click to collapse
This is not an issue to me, because ATT is the dominant force here in the south KC metro area, I always have solid signal!
Tag, I did this to see if it fixes my SMS problem.
Thanks to your "wonderful mod" sending SMS didnt work anymore. Make sure you put in the correct SMSC number of your SMS Service Center!
I can no longer send any txt messages after applying this mod, I did a factory wipe and still can't. Any way to revert this?
Took me a while to find the telus SMSC number: +16475800172
gmbhneo said:
Is this working fpr European Phones (in my opinion Germany) too?
Click to expand...
Click to collapse
yes it does
here are two that I found:
t mobile +2063130004
at&t +13123149810
sorry to any issues you may have recieved whole doing this... but as always, full nandroid back- ups should be done before adding a new mod. yeah I realize I said there was no harm if this didn't work out, so I'm sorry for that.
Anyways just google for "(your carrier) SMSC address" then correct it if you are having issues.

[Q] XT1053. Preferred network type question. No 2G/3G ?

Hey Guys!
I'm from Argentina and I have bought (via Amazon) this amazing phone. It is the Developer Edition 32GB, XT1053. I think it runs the T-Mobile rom. I bought it because it is the global GSM version and its LTe bands works down here (same bands as US) well.
So far so good with this little and fast phone, but I was really surprised when i went on to check the preferred network types options, and found I only have 2 options: Automatic or 2G. There is no "3G/2G" option as I use to see in other phones. Normally you would expect 3 options here:
LTE (which includes 3G and 2G also), 3G (which includes 2G also) and just 2G.
Thing is, so far I don't mind this since Its cool to have it automatically, the phone will always try to find LTE and if not, 3G... and if not, 2G. The thing is, Argentina is currently setting up LTE over the country these days (yes, we suck), and in the future the operators 'might' charge an extra cost for using LTE instead of 3G, and that's what worries me... not having the option to limit the phone to 3G/2G was something I wasn't expecting and honestly I don't want to flash the phone to another rom, not at least in the near future.
Anyone knows if this "Automatic - 2G" setting is normal to see in this version ? Do you know if there's some kind of workaround to make it work under 3G/2G only in case I need to avoid LTE in the future for extra fees and so ?
Thanks for your help guys!
Edit: Forgot to mention, the phone came out with 4.4.3 but I upgraded it via OTA to 4.4.4 right away.
Yes the Automatic - 2G option is normal for the xt1053 retail stock. Android has hidden menu that gives more options tho.
Use this app to access hidden menu: https://play.google.com/store/apps/details?id=com.snclabs.radioswitcher&hl=am
Scroll down to where it says set preferred network type and change to whatever you want. gsm only being 2g, wcdma only being 3g, and so on
If the setting doesn't stick after reboot you can try toggling data off then on after changing the setting. try a few times it will stick after reboot.
dtg7 said:
Yes the Automatic - 2G option is normal for the xt1053 retail stock. Android has hidden menu that gives more options tho.
Use this app to access hidden menu: https://play.google.com/store/apps/details?id=com.snclabs.radioswitcher&hl=am
Scroll down to where it says set preferred network type and change to whatever you want. gsm only being 2g, wcdma only being 3g, and so on
If the setting doesn't stick after reboot you can try toggling data off then on after changing the setting. try a few times it will stick after reboot.
Click to expand...
Click to collapse
Thanks man! That app will be really helpful to me if it happens that the operators start charging extra fee for LTE use in the near future.
Btw, I don't understand that much all that names. What would be the options for having 3G and 2G ? Should it be "WCDMA preferred" ? (I guess that takes away LTE) I will not use it under 3G only since I will be without signal if I happen to run into a 2G zone. (yes, we still have a lot of 2G zones in this country )
Thanks!!!!

[Q] App to switch between 2G/3G and LTE ? XT1053 T-mobile doesn't have it :(

Hey guys!
I bought a Moto X Dev Edition, XT1053 with the Tmobile rom i guess.
Thing is, when I got to preferred networks options, I only have "Automatic - 2G".
Automatic would be LTE/3G/2G. I do not have the "middle" option to toggle to 3G/2G, as most phones with LTE support do have.
Hence, either I have ALL bands or just 2G. The problem here is that in my country LTE is being deployed right now, so signal is really week on most places and having my Moto X in "Automatic" REALLY drains my battery. I have to use it with 2G and then switch to Automatic when i need it, which is really annoying. Basically, I really need the "3G" option that most phones have, which involves 3g or 2g depending on signal strenght.
Thing is, I need an app that would let me choose either if I really want the Auto mode (all bands, being 4G preferred) and also being able to choose 'WCDMA preferred', which is the mode my XT1053 is missing and also the mode I'm needing right now.
*#*#4636#*#* code doesn't work on my Moto X. Also I looked at PlayStore and there's a bunch of them, neither of them really generate trust on my, as they are old and receie really low opinions. I don't want to start messing around with apps and broke something here
I read on another forums that "Radio Switcher" works this out, but I saw screenshots of it (didn't actually tried it) and, aside being a really outdated app, it does have the "wcdma preferred" option but do not have the "auto" mode for all bands together (as I think some day I will use, when 4G signal becomes more strong in future).
Do you guys know a cool and updated app that would let me choose between "Auto" and also "WCDMA preferred" (the one missing in my phone) ??
Your help will be really appreciated.
Thanks so much!!!!
Well, I ended up installing Radio Switcher and for my surprise it works perfect!
If I want to use 3G preferred (the option the XT1053 stock doesn't have) I select "WCDMA preferred". If I want to use just 2G I choose "GSM only" and if I want to use the "Auto" option that my XT1053 have, I choose "LTE/gsm auto (PRL)" option.
So, I'm good now. The only problem is that Lollipop seems to have changed this hidden menu, and all these apps are outdated, so I might be in trouble again when I get Lolli in the near future.

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