Develop Bugs

Cingular 8525 / WM6 / UMTS not working

All:
I just got a Cingular 8525 and immediately upgraded it to WM6 (it had WM5 on it for about an hour). I am in a 3g covered area but I do not think I am getting a 3g connection on the phone. I have the big upper case U in a box, and then I have the signal indicator with an E over it. This makes me believe that I am connected to Cingular's edge network. Also, if I am on the phone and I try to run a sync with activesync the phone tells me that I have a voice call in progress. Any suggestions? AT&T support was clueless.

sk7575 said:
All:
I just got a Cingular 8525 and immediately upgraded it to WM6 (it had WM5 on it for about an hour). I am in a 3g covered area but I do not think I am getting a 3g connection on the phone. I have the big upper case U in a box, and then I have the signal indicator with an E over it. This makes me believe that I am connected to Cingular's edge network. Also, if I am on the phone and I try to run a sync with activesync the phone tells me that I have a voice call in progress. Any suggestions? AT&T support was clueless.
Click to expand...
Click to collapse
The U indicator is UMTS - that is 3G. However, most of the newer ROMs replace it with a 3G icon. What ROM did you use? Anyway, also, you may try the reg tweak to enable the BAND tab in the Settings > Phone menu. You can find that tweak in the wiki.

todd_jg said:
The U indicator is UMTS - that is 3G. However, most of the newer ROMs replace it with a 3G icon. What ROM did you use? Anyway, also, you may try the reg tweak to enable the BAND tab in the Settings > Phone menu. You can find that tweak in the wiki.
Click to expand...
Click to collapse
I have the same thing with my rogers phone, what I'm guessing is the phone is designed to pick whatever signal is strongest, (which is usually Edge) and not often-rescan for UTMS/3G.
If you google and download Band Switcher, you can force UTMS/3G at your leisure.

I wasnt aware the USA had 3G yet? I was always told that Edge was the best they had out there from a few mobile operators in the UK.
What Radio stack are you using?

Cingular, now known as "The New AT&T (AT&T)" has 3G up and running in some of it's markets.

No one seems to be answering this question.

Starfury said:
I wasnt aware the USA had 3G yet? I was always told that Edge was the best they had out there from a few mobile operators in the UK.
What Radio stack are you using?
Click to expand...
Click to collapse
We have quite a bit of UMTS and HSDPA coverage here in Massachusetts on Cingular/AT&T.

3G notification

I'm currently using the HTC T8285 Telstra. I know that it picks up the 3G here, just in Australia instead of having a 3G icon where the signal is, theirs has an H.
Is there any cab or tweak to either get the H to show up as 3G or have 3G shown beside where is says AT&T ?

Im actually on the Telstra network The icon switches between 3G and H on mine, i think depending on whether the current cell supports HSDPA?

ryche316 said:
I'm currently using the HTC T8285 Telstra. I know that it picks up the 3G here, just in Australia instead of having a 3G icon where the signal is, theirs has an H.
Is there any cab or tweak to either get the H to show up as 3G or have 3G shown beside where is says AT&T ?
Click to expand...
Click to collapse
You realize the "H" is better than "3G"?

H is for HSDPA aka 3.5G

i think ryche316 is referring to the label reading 3G AT&T vs just AT&T. if i'm correct, you'll need a registry editor to fix this. launch the registry editor and goto the registry key HKEY_LOCAL_MACHINE\SOFTWARE\OEM\PhoneSetting and change the Enable3GLongNamePrefix key value from 0 to 1. soft reset and you'll see it now read 3G AT&T. true this is a minor cosmetic item, cuz if it shows H in the signal meter, you're better off. i've rarely seen mine show 3G. i always want to see H.

cortez.i said:
i think ryche316 is referring to the label reading 3G AT&T vs just AT&T. if i'm correct, you'll need a registry editor to fix this. launch the registry editor and goto the registry key HKEY_LOCAL_MACHINE\SOFTWARE\OEM\PhoneSetting and change the Enable3GLongNamePrefix key value from 0 to 1. soft reset and you'll see it now read 3G AT&T. true this is a minor cosmetic item, cuz if it shows H in the signal meter, you're better off. i've rarely seen mine show 3G. i always want to see H.
Click to expand...
Click to collapse
Aye ditto, can also use Schaps 3.3 to do the mod too which will allow you to call 3G whatever you want.

Thanks there Trickster. yea that's what I was referring to. I do realize that the " H " is a 3.5G which has a faster download speed than 3G.
Thanks

ROM difference between i927 & i927R and 4G symbol

Hi,
Being in Australia the Captivate Glide is not available locally so ordered it online via a parallel importer.
I was supposed to receive the AT&T version but due to no stock I received the Rogers i927R version.
I cannot root the device as my work place prevents it since I need to use it for work related messaging.
1. Is there a list of differences between the AT&T and Rogers ROM's ?
2. I'm on Optus which uses 900/2100MHz, so the phone will connect on 2100.
Using an App called Network Signal Info I can see data connection switching when I'm moving around as normal, but the data symbol in the notification bar doesn't match when on 3G as follows:
NetInfo | Speed | Notif-Bar-Symbol
GPRS | 55kbit | G
UMTS (3G) | 384kbit | 4G <-- doesnt say 3G
HSDPA | 7.2Mbit | 4G
This a bug or ROM incompatibility ?
Thanks.

The only differences I know of is that the Rogers ROM is carrier-iq free and the tethering option is unlocked.

In my AT&T version, I can't find any way to manually toggle between 2G and 3G networks. However the network info apps/widget show it's automatically switching between EDGE, HSDPA and HSPA.

incidentflux said:
In my AT&T version, I can't find any way to manually toggle between 2G and 3G networks. However the network info apps/widget show it's automatically switching between EDGE, HSDPA and HSPA.
Click to expand...
Click to collapse
It would be handy to sometimes by able to force 2G to save battery.
Anyway, can the Rogers ROM be flashed onto the AT&T Glide and still work ?

vil33 said:
The only differences I know of is that the Rogers ROM is carrier-iq free and the tethering option is unlocked.
Click to expand...
Click to collapse
Good point.
Sounds like I should stick with the Rogers one they sent me rather than swap it for an AT&T version since the Rogers one will be most compatible without having to 'root'.
Carriers in Australia seem to allow tethering by default as long as you have a working App for it.
Thanks.

Which parallel importer did you use, do they have an online storefront?
Hope the Rogers version pricing comes down as fast the AT&T one. That's I went for At&T, down the line I'll end up flashing it with an open ROM. Mostly because of OpenVPN support.

Maruzko said:
It would be handy to sometimes by able to force 2G to save battery.
Anyway, can the Rogers ROM be flashed onto the AT&T Glide and still work ?
Click to expand...
Click to collapse
Indeed that's why I asked, since I don't use any data packages.
I checked my mom's S II, appears to be an AT&T carrier limitation. It won't even scan for other networks. I set her S II to 2G.
Earlier I wasn't concerned with the AT&T ROM, but this one is annoying, I could save some serious battery time by switching to 2G.

incidentflux said:
Which parallel importer did you use, do they have an online storefront?
Click to expand...
Click to collapse
mobicity.com.au
They've been very helpful and responsive, trying to get stock as quickly as possible.
When they couldnt get the AT&T Captivate Glide they sent me the Rogers Galaxy S Glide.
Seems that was the better way to go.

AT&T locks down their network and band select while Rogers does not. AT&T uses an "H+" on the HSDPA network to show status while Rogers uses a "4G".
Learned by flashing Rogers ROM onto an ATT cglide. Changed the model to 927R as well. Went back to ATT when I noticed the loss of the ATT wifi options.

Tynar said:
AT&T locks down their network and band select while Rogers does not. AT&T uses an "H+" on the HSDPA network to show status while Rogers uses a "4G".
Click to expand...
Click to collapse
So even after rooting the phone, there's no way to manually change bands while on the AT&T ROM?
Tynar said:
Learned by flashing Rogers ROM onto an ATT cglide. Changed the model to 927R as well. Went back to ATT when I noticed the loss of the ATT wifi options.
Click to expand...
Click to collapse
Which WiFi options? Is the Rogers ROM disabling some WiFi options?

incidentflux said:
So even after rooting the phone, there's no way to manually change bands while on the AT&T ROM?
Which WiFi options? Is the Rogers ROM disabling some WiFi options?
Click to expand...
Click to collapse
I'm using the Rogers version in Australia.
I have all the normal WiFi options and have used it at home and on public ones with no issues.
I think, just guessing, that Tynar is talking about the customized WiFi options on the AT&T ROM I have read about which gives you access to their own WiFi network.

Tynar said:
AT&T locks down their network and band select while Rogers does not. AT&T uses an "H+" on the HSDPA network to show status while Rogers uses a "4G".
Click to expand...
Click to collapse
Yep, I since had a look at the User Guides, of which there is a different one for each version Rogers and AT&T. The ROM's have been customized to show different symbols for mobile connectivity.

incidentflux said:
Indeed that's why I asked, since I don't use any data packages.
I checked my mom's S II, appears to be an AT&T carrier limitation. It won't even scan for other networks. I set her S II to 2G.
Earlier I wasn't concerned with the AT&T ROM, but this one is annoying, I could save some serious battery time by switching to 2G.
Click to expand...
Click to collapse
Ya... Thats at&t limitation, I guess... But atleast in my sister's AT&T Thrill phone (running Froyo + rooted with SuperOneClick) the "NETWORK" app (LINK) from AM/PlayStore works and helps in selecting 2G only or 3G only whenever needed...
But even that app is NOT working on my rooted CapGlide... May be because this phone has only rooted-ROM and not rooted-Kernal (as told by rooting guide in cap.glide development section)... Experienced members please help... I badly need 2G only for battery backup and 3G only for good speed as 3G coverage in my place is not great...
Thanks...

kanagadeepan said:
But even that app is NOT working on my rooted CapGlide... May be because this phone has only rooted-ROM and not rooted-Kernal (as told by rooting guide in cap.glide development section)... Experienced members please help... I badly need 2G only for battery backup and 3G only for good speed as 3G coverage in my place is not great...
Thanks...
Click to expand...
Click to collapse
With AT&T Rom, you don't have that option.
You can flash Rogers Room (Untouched or Custom Rom) where you have the option of manually choosing network and choosing 2G/3G

Switching to 2G would really save on battery life.

So the notable differences are...
1. The AT&T ROM doesn't allow band switching or manual carrier search and selection. While the Rogers ROM does not have this restriction?
2. AT&T allows WiFi tethering, while Rogers doesn't?
3. Both versions come with Mail for Exchange apps?
4. Skype, G+ Hangouts, Google Talk, Voice and video works on both?
Please add/correct any other big differences. I'll make a table and put it up on Wikipedia once we have the notable differences, that could cause issues with international use.

incidentflux said:
So the notable differences are...
1. The AT&T ROM doesn't allow band switching or manual carrier search and selection. While the Rogers ROM does not have this restriction?
2. AT&T allows WiFi tethering, while Rogers doesn't?
3. Both versions come with Mail for Exchange apps?
4. Skype, G+ Hangouts, Google Talk, Voice and video works on both?
Please add/correct any other big differences. I'll make a table and put it up on Wikipedia once we have the notable differences, that could cause issues with international use.
Click to expand...
Click to collapse
2. Rogers allows WiFi tethering, while AT&T doesn't?
Just that.

santimaster2000 said:
2. Rogers allows WiFi tethering, while AT&T doesn't?
Just that.
Click to expand...
Click to collapse
So both carriers allow WiFi tethering? I haven't personally tested either so I can't be sure.

incidentflux said:
So both carriers allow WiFi tethering? I haven't personally tested either so I can't be sure.
Click to expand...
Click to collapse
You are blind or something ?
2. Rogers allows WiFi tethering, while AT&T doesn't

santimaster2000 said:
2. Rogers allows WiFi tethering, while AT&T doesn't?
Click to expand...
Click to collapse
Guess you don't know that leaving a question mark on your reply might confuse people in to thinking you weren't sure?!
santimaster2000 said:
You are blind or something ?
Click to expand...
Click to collapse
No need to be rude!

[Q] H+ with HTC one X on AT&T

How can i make sure I have ability to connect to AT&T at H+ speeds.
With other phones I have been able to connect with H+.
However with this One X, i cannot.
1. How can i tell if microSIM i am using is 4G (H+) capable
2. How can I tell if my account has been provisioned for H+ service
3. Any particular APN settings needed for H+ connection. I have tried a bunch, and they all only connect to H speeds.
Thanks!

This is not a 4G phone.
4G is completely unneccesary on a Phone and would only drain more battery.
I'm in Sweden and my phone jumps between HSPA and 3G for some reason. HSPA is the "H" as you call it, and will show as H on the phone. And "H" is 3.5G.

If you want to check your apn settings, check out my post on page 3 of this thread:
http://forum.xda-developers.com/showthread.php?t=1587681
Also, to check your sim, search the sku number that is on it. It is a 5 digit number that should start with 7.
Sent from my HTC Vivid using XDA app

As gurkburk92 said, (unless you've got the actual US version of the One X) you don't have a H+ radio in your phone, therefore, you'll never be able to use 4g.
As for it being unnecessary in a phone... I'd have to disagree...
I've got an EVO 4g and when I'm in a 4g area, songs load WAY faster while streaming music (vs. 3g that occasionally buffers too slowly to listen to a song without skipping) and youtube videos are about the same.
If you're using your phone as a media consumption device, 4G definitely has its merits.

shorty6049 said:
As gurkburk92 said, (unless you've got the actual US version of the One X) you don't have a H+ radio in your phone, therefore, you'll never be able to use 4g.
As for it being unnecessary in a phone... I'd have to disagree...
I've got an EVO 4g and when I'm in a 4g area, songs load WAY faster while streaming music (vs. 3g that occasionally buffers too slowly to listen to a song without skipping) and youtube videos are about the same.
If you're using your phone as a media consumption device, 4G definitely has its merits.
Click to expand...
Click to collapse
Actually the One X is capable of getting AT&T HSPA+ speeds.
HSPA+ and LTE are two different things. AT&T considers HSPA+ to be 4g, and LTE to be completely different.
As for the ONE X you will be able to use HSPA+. I am getting speeds of up to 10mbps using AT&T HSPA+
http://androidspin.com/2012/03/11/htc-one-x-approved-by-fcc-for-atts-hspa-network/

lcavada said:
1. How can i tell if microSIM i am using is 4G (H+) capable
Click to expand...
Click to collapse
Any microsim you buy from ATT is HSPA+ capable.
2. How can I tell if my account has been provisioned for H+ service
Click to expand...
Click to collapse
You'd have to call and ask. If you aren't on a HSPA+ plan, the CSR can change it for you. The SOC codes (if you get somebody who has no clue) are
HSDPPB - unlimited
HSSMT7 - 2GB
SMTHS2 - 3GB
3. Any particular APN settings needed for H+ connection. I have tried a bunch, and they all only connect to H speeds.
Click to expand...
Click to collapse
The 'phone' APN and the 'broadband' APN (used for tethering) are the ones capable of 4G speeds. You won't have broadband unless you subscribe to a tethering package or have it provisioned as a data connect card.

Have any of you guys tried to create the "phone" APN on your One X? When I do so I can't select it (there is no check box to select). I can only pick an APN that is called "wap.cingular". I have my account provisioned correctly for an H+ device (prior device was also H+). I also got a new SIM just for this device and have it correctly recorded with HTC (didn't have a microSIM).
EDIT
Ok I did some more playing and if I type "Phone" for APN it works but if I type "internet", "Internet" or "Internet Only" in the APN Type it is no longer selectable. What is supposed to be written in the APN type box???
EDIT 2
Ok so I've learned from some digging that it's a problem with my account never having been setup for "4G"...Which is odd because I had an AT&T "4G" phone previously (Atrix). So I've never gotten the speeds I've paid for. I love it!

phobos512 said:
Have any of you guys tried to create the "phone" APN on your One X? When I do so I can't select it (there is no check box to select). I can only pick an APN that is called "wap.cingular". I have my account provisioned correctly for an H+ device (prior device was also H+). I also got a new SIM just for this device and have it correctly recorded with HTC (didn't have a microSIM).
EDIT
Ok I did some more playing and if I type "Phone" for APN it works but if I type "internet", "Internet" or "Internet Only" in the APN Type it is no longer selectable. What is supposed to be written in the APN type box???
EDIT 2
Ok so I've learned from some digging that it's a problem with my account never having been setup for "4G"...Which is odd because I had an AT&T "4G" phone previously (Atrix). So I've never gotten the speeds I've paid for. I love it!
Click to expand...
Click to collapse
What kind of speeds are you getting? I am curious because I am on a go phone plan and get about 6-10mbps downloads.
Are you getting higher?

The speeds that ATT claims for 4g hspa+ devices are 2 to 6mbps. YMMV depending on network conditions.
Sent from my HTC One X using XDA

[How to] disable LTE on AT&T S3 (you can disable HSPA+ too)

I have read that you can change your APN settings to turn off LTE. However, I found another way (with the help of carefreelife). Use at your own risk! I am not responsible for any harm you may do though it seems fairly safe to me!:
UPDATE: THERE IS NOW AN EASIER METHOD TO DO THIS WITHOUT PULLING THE SIM AND REBOOTING (check out post #47 below or use this link)
http://forum.xda-developers.com/showpost.php?p=37310325&postcount=47
[OLD METHOD]1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G).
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.[/OLD METHOD]
I was attempting to follow this procedure for the S2:
{Trick} Get Around "RAT SELECTION RESTRICTED" on i897 modems! - xda-developers
...but I couldn't get the SIM out easily so I left it in...and followed the steps. It wouldn't recognize that the SIM had been reinserted so I gave up and rebooted...and it worked! No need to mess with airplane mode or anything just follow the steps above.
I was then able to follow the same procedure and turn back on the default setting which was "1) Automatic". After a reboot I am again connected to LTE.
Reason I'm using this: I'm testing a major battery drain issue that might be related to LTE/HSPA+ switching.
Reason you might want this: If you have poor LTE signal or even poor HSPA+ signal and want your phone to stop trying to connect to that network, this will stop it.
UPDATE:
A little bit of bad news here:
I have been on "WCDMA All" (HSPA+ aka 3G4/G, with LTE disabled) for 10 days now with ZERO problems whatsoever.
However, I am pretty sure that whichever you choose, if not "Automatic", you will be locked to ONLY that band:
i.e. if you choose "WCDMA All" you will not only be disabling LTE, but also 2G (EDGE) as well. You may not need it (and if so, it will not effect you) - but if your phone loses the HSPA+ signal, it will not fall back to 2G unless you change the setting.
I tested this theory by setting my phone to "LTE all" and trying to call myself from another phone. The call went straight to my voicemail. LTE is data only (for now) and when you receive a call, it switches to HSPA+. Unfortunately, since I had set my phone to "LTE All", it stayed on LTE and could not receive the call.
This may not be a deal-breaker but it's something to be aware of, for sure. I only tested "LTE All" because it was easy to do so, but I am assuming the same applies for the other settings...only "Automatic" would seem to pick the best available network.
Click to expand...
Click to collapse

Edited OP and changed thread title. Please help me test this. Thanks!

Just out of my curiosity, can you not do this:
settings > wireless and networks > more settings > mobile networks > network mode > GSM/HSPA
I have the Bell version, which is similar to ATT's, wondering if ATT disabled that option.

fortesquieu said:
Just out of my curiosity, can you not do this:
settings > wireless and networks > more settings > mobile networks > network mode > GSM/HSPA
I have the Bell version, which is similar to ATT's, wondering if ATT disabled that option.
Click to expand...
Click to collapse
Yes, it is disabled on AT&T versions. If you try the method I listed above without removing the SIM card, it will be blocked as well.
AT&T does not want us to have any control over which network we connect to. It's been speculated that they want us forced on to LTE to take strain off the HSPA network. Honestly I think that's fine - though I prefer to have a choice - except that I suspect LTE switching is causing my battery drain issue and I need to turn it off in order to test that theory.
http://forum.xda-developers.com/showthread.php?t=1811182

carefreelife at Android Central forums showed me that WCDMA All is the proper setting to disable LTE and stay on HSPA. It's working for me and seems to be perfect!

Curious,why dont u want LTE?
Sent from my SAMSUNG-SGH-I747 using xda premium

bbgt2 said:
Curious,why dont u want LTE?
Click to expand...
Click to collapse
Testing to see if it's causing the battery drain issue described in this thread:
http://forum.xda-developers.com/showthread.php?t=1811182

Oh ok. Cant complain about battery life. Been on stock, rooted stock, CM10 and always the same 14 hours between charges. Heavy user WiFi Twitter exchange etc.
Sent from my SAMSUNG-SGH-I747 using xda premium

bbgt2 said:
Oh ok. Cant complain about battery life. Been on stock, rooted stock, CM10 and always the same 14 hours between charges. Heavy user WiFi Twitter exchange etc.
Click to expand...
Click to collapse
My battery life is great too - there just seems to be a bug that causes it to suddenly become terrible and drain fast until it's rebooted. This is just a method I'm using to test it.
It's possible that disabling LTE can increase battery life but I'm not sure there's any evidence that LTE uses more battery than HSPA+. On older phones the LTE was not integrated into the SoC and thus was a power hog...but it's integrated on the S3.
For users who are on fringe areas and receive poor LTE or HSPA+ coverage...the phone will use extra battery trying to connect and stay connected to those...even if it's [mostly] unsuccessful. Using this method would be a good idea for people who would rather just stay on the bands with strong signal and stop wasting battery trying to get on LTE or HSPA+ fruitlessly.

Thanks a lot for this I've been wanting to switch to 2g only THANKS

Your the man! I've wanted to do this since I got the phone. Is there anyway to use combination bands like in the Captivate?
Sent from my GSIII
---------- Post added at 09:55 AM ---------- Previous post was at 09:52 AM ----------
Woah I just noticed your that guy from the other thread that had some serious battery life issues. Still no luck huh?
Sent from my GSIII

I can't get into the screen.. Always get some error after entering *#2263#

DudeWatsThat said:
Your the man! I've wanted to do this since I got the phone. Is there anyway to use combination bands like in the Captivate?
---------- Post added at 09:55 AM ---------- Previous post was at 09:52 AM ----------
Woah I just noticed your that guy from the other thread that had some serious battery life issues. Still no luck huh?
Click to expand...
Click to collapse
Hey what's up. I don't know what combination bands are - haven't ever used the Captivate.
And yes I'm still working on those battery issues...I'm hoping that THIS fixes it...even though it would meaning losing LTE for the time being...at least I'd know what's causing it!
X10D3 said:
I can't get into the screen.. Always get some error after entering *#2263#
Click to expand...
Click to collapse
What's the error you get? Are you using an AT&T Galaxy S3?

jeffreii said:
Hey what's up. I don't know what combination bands are - haven't ever used the Captivate.
And yes I'm still working on those battery issues...I'm hoping that THIS fixes it...even though it would meaning losing LTE for the time being...at least I'd know what's causing it!
What's the error you get? Are you using an AT&T Galaxy S3?
Click to expand...
Click to collapse
You can mix the different bands between wcdma and gsm and their frequencies,that way you can get the best signal in your area.
How's that LTE test coming?
Sent from my GSIII

Does nothing. When I hit send it just says invalid mmi code.
Sent from my SAMSUNG-SGH-I747 using xda premium

DudeWatsThat said:
You can mix the different bands between wcdma and gsm and their frequencies,that way you can get the best signal in your area.
How's that LTE test coming?
Click to expand...
Click to collapse
I can't say anything for sure until I get about 1 week of uptime with no plummet. It's been stable (battery and signal) since I enabled it, though.
X10D3 said:
Does nothing. When I hit send it just says invalid mmi code.
Click to expand...
Click to collapse
You shouldn't even have to hit send...as soon as you hit the second # it should go straight to the menu.
*#2263#
I can't guarantee this works with any modifications to stock as I have only done it on my unrooted stock AT&T S3.

CM10. I just learned that you can only use dialer codes on stock roms. AOSP roms don't recognize them. There's a small few that work. obviously this one doesn't. Where can I find the APN info?

Nice find!! Works perfectly with my AT&T Galaxy S3. Going to test it out for a few days. I have 4G LTE where I live but when I go to college in the fall there won't be any LTE. This will come in handy!
However, with the WCDMA option enabled, does this mean you only have access to 3G and not 2G? Sometimes when I am in rural areas there is no 3G so I need to use EDGE or GSM. Hopefully with the WCDMA all enabled 2G is still accessible.

X10D3 said:
CM10. I just learned that you can only use dialer codes on stock roms. AOSP roms don't recognize them. There's a small few that work. obviously this one doesn't. Where can I find the APN info?
Click to expand...
Click to collapse
I've seen it here and there - including in my battery plummet thread linked earlier. I first found it mentioned here:
http://forums.androidcentral.com/t-galaxy-s-iii/181957-turning-off-lte.html
ComradeNF said:
Nice find!! Works perfectly with my AT&T Galaxy S3. Going to test it out for a few days. I have 4G LTE where I live but when I go to college in the fall there won't be any LTE. This will come in handy!
However, with the WCDMA option enabled, does this mean you only have access to 3G and not 2G? Sometimes when I am in rural areas there is no 3G so I need to use EDGE or GSM. Hopefully with the WCDMA all enabled 2G is still accessible.
Click to expand...
Click to collapse
That's a great question. I have looked at it like a hierarchy but there's plenty of reason to believe it could be otherwise. There's not really anywhere in Miami I can go that doesn't have really strong HSPA+ so I don't know how I can test it. If anyone can do this test themselves and see what happens when you leave a 3G area please post results here.
Actually, once I am done testing the battery drain I could switch from Automatic to LTE and find somewhere in Miami where there's only 3G and see if it switches down to 3G or just loses signal entirely. Someone could also switch to LTE mode and try to receive a phone call...if it is truly locked on ONLY LTE then it won't be able to take a call...
The more I think about it the more it seems like this could be a major drawback of this method. I look forward to testing this later and hearing what you guys find as well. Thanks!

jeffreii said:
I've seen it here and there - including in my battery plummet thread linked earlier. I first found it mentioned here:
http://forums.androidcentral.com/t-galaxy-s-iii/181957-turning-off-lte.html
That's a great question. I have looked at it like a hierarchy but there's plenty of reason to believe it could be otherwise. There's not really anywhere in Miami I can go that doesn't have really strong HSPA+ so I don't know how I can test it. If anyone can do this test themselves and see what happens when you leave a 3G area please post results here.
Actually, once I am done testing the battery drain I could switch from Automatic to LTE and find somewhere in Miami where there's only 3G and see if it switches down to 3G or just loses signal entirely. Someone could also switch to LTE mode and try to receive a phone call...if it is truly locked on ONLY LTE then it won't be able to take a call...
The more I think about it the more it seems like this could be a major drawback of this method. I look forward to testing this later and hearing what you guys find as well. Thanks!
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I'd also love to know if 2G works, but I can't while in North California. There isn't a single place within a 20 mile radius of where I live that doesn't have full LTE and HSPA+ coverage since so many people live here. I go to college in a fairly rural area in California though so in late September I'll be able to confirm if we can get 2G with the WCDMA method.