Database Info

[Q] Abroad and stuck no data! HELP!

Hello,
So i've got this nicely unlocked, shiny, G2x. (Running MIUI right now, please don't judge me) Anyways, I'm in Morocco, and am trying to use Maroc Telecom (IAM) which has 3g data (their site even claims HSPA+) and these are the frequencys they use:
GSM 900 / GSM 1800 / UMTS 2100
And copy pasted from the T-Mobile website, the G2x uses:
Quad band GSM (850/900/1800/1900 MHz), Dual band UMTS (1700/2100 MHZ Bands 1 & 4)
To me that looks compatible. Trouble is, i'm getting no data whatsoever, not even 2g, in an area that I know should have at least 3g. I've signed up for the plan correctly, I'm sure of that. And my G2x automatically picked up the APN settings when I first turned it on (and I verified that they are correct) but still not a hint of internet access. This is driving me crazy!! any hints would be greatly appreciated.

Just guessing, but does it think you're roaming. Maybe try enabling data roaming to see if it recognizes the data then.

fiffer1 said:
Just guessing, but does it think you're roaming. Maybe try enabling data roaming to see if it recognizes the data then.
Click to expand...
Click to collapse
It wouldn't be roaming if he bought a sim for that system as he says. Probably APN has a typo or not selected. Have to push radio button so it has a green dot to enable the APN. If that doesn't work then contact carrier to reset data on the account. I have had to do that in the past here in Thailand. Have you also tried turning the phone off and on, or doing airplane mode. Sometimes that is needed once.

Thanks for the responses!
Unfortunately, i've tried and double tried all those things, except getting the carrier to reset the data plan. I'll do that next. Now I just have to get through a bunch of menus in French & Arabic

Are you running Market Enabler. It can screw you up royally if you change sim and it was set to fake at boot. I had that on a Nexus One and had to factory reset the phone to get data working again when I changed sim.

Thanks for the advice. I don't think i'm faking my sim - unless that's something that comes with CM07 and I just don't know about it. Also I tried it on stock before flashing with no different result, so i'm pretty sure that's not it. Went to the office of Maroc Telecom, who replaced my sim (but still no luck) and an INWI sim which i'd previously been able to get 2g coverage on now gives me nothing. It is the weirdest thing and I feel stuck. Has anyone actually gotten a g2x to work on any other network?? is there some sort of Tmobile lock which is preventing me because i'm not using a tmobile sim? (And i'm not talking about the phone being 'locked', obviously i've gotten it unlocked, and can make calls just fine, and did have that short spell of 2g data on INWI) Anyways, i'm about ready to throw this very expensive phone out the window, because what is a smartphone without data?? Thanks anyways for your advice.

same, problem.
How can I solve it?
Maybe try to use other broadband?

I use my G2X in Thailand on TOT3G with no problems. They run 3G on Band 1 (2100/1900). Figure out what band it is. There about fifteen different 3G bands in use. Most people don't realize it but 3G radios use two frequency spectrums at the same time. There is an uplink and downlink. For example 2100 Band 1 uses 2100Mhz downlink and a 1900Mhz uplink. Band 4 is 1700Mhz uplink and 2100Mhz downlink. So the 3G radio in the G2X also transmits on 1900Mhz. But the 1900 Band 2 uses 1800Mhz as an uplink, which the 3G radio in the G2X doesn't support. Most companies that say they are on 2100Mhz are referring to Band 1. If they are running Band 1 the G2X definitely supports it. If you have sim unlocked the phone there is nothing preventing you from getting 3G reception on any carrier in the world.
Download "Network" (https://market.android.com/details?id=de.mangelow.network&feature=search_result) from the Android Market and run it. Scroll down to where it says what type of connection you want and make sure "WCDMA preferred" is selected. If the phone somehow got set to "2G only" you will never get 3G reception until you change it. That happened to me once on a Nexus One and took me a while to figure it out.
CM7 and some other custom roms are known to be having connectivity issues. I suggest you flash back to stock and make sure your apn is correct. If your apn is wrong in any way, the connection will be refused by the cell system.

answer to problem with 3G
engadget[dot]com/2011/04/27/t-mobile-g2x-lacks-quadband-hspa-shatters-dreams/
So, I have working 2G, and 3G(only data, calls are not working)
Rom: WeaponG2x.

Have you tried hard reset (press and hold vol^ and power) till it restarts..
Sent from my LG-P999 using xda premium

MisfitX said:
Have you tried hard reset (press and hold vol^ and power) till it restarts..
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
For the what?

Force LTE to Edge/3G

Hey! I'm new to the forums and just got a Skyrocket this week.
I was just wondering if its possible to force the LTE signal to HSPA only or even Edge/3g?
Looks like the LTE radio is locked pretty tight. Anyone out there find a method to bypass this? I've tried the administrative menus in the Phone Information menu and even some of the Apps in the market LTE on/off and nothing seems to work.
Thanks!

Pretty sure you can change your APN settings to allow only hspa since lte seems to require the PTA setting. Look for the various settings and I'll update later if you have no luck.
Sent from my Samsung GSII Skyrocket (SGH-I727) using xda premium

I thought of that too for battery saving.
Here in Canada I tried changing the APN from the default LTE setting to the internet.com setting but it is still stuck on 4G. I didn't subscribe to LTE plan yet but Speedtest.net tests is still better on the LTE apn.

*#2263#* gives access to the RAT selection menu, which lets you choose to park on GSM/UMTS/LTE, and separately which bands (850,1900,1700,2100, etc.) to park on within each technology.
Unfortunately the menu is restricted on our current radio, in my experience with previous Samsung UMTS radios we will need to flash a radio that is not restricted (at least temporarily, to unlock the menu) to get access to this.

@cue_32 i believe its supposed to say LTE when you are on lte. if it says 4g its really just 3g (or 3g+).

It would be great if an LTE on/off switch was created. If the current radio restricts this from occurring would be a huge bummer. I'll have to dig around on the Development blog to see if anyone is starting to look into this or creating some kinda switch.

The TPC rom gives you the option to choose LTE or HSPA in the settings.

EvilEvo said:
The TPC rom gives you the option to choose LTE or HSPA in the settings.
Click to expand...
Click to collapse
What would be nice is if the ROM only connects to 3G when on idle, then go to 4G or LTE when data is being used. For better battery life
Sent from my SAMSUNG-SGH-I727 using XDA App

cue_32 said:
What would be nice is if the ROM only connects to 3G when on idle, then go to 4G or LTE when data is being used. For better battery life
Sent from my SAMSUNG-SGH-I727 using XDA App
Click to expand...
Click to collapse
Agreed, the original GSII does that with hspa and 3g

help
Hi, how can I bypass AT&T throttling through chaning the APN? I'm running 2.3.6 stock and am in NYC. Thank you!

[Q] Can't choose WCDMA 2100 band on servicemode

I'm using the rat unlocked modem, I can see WCDMA 2100 under add bands but when I selecet it nothing happens, its not showing under WCDMA preference.

If you're on AT&T, RAT unlock will not work. Also, I am pretty sure our phone doesn't have a CDMA chip, so that option wouldn't work anyways.
Sent from my GT-P7510 using xda premium

I'm using the rogers RAT unlocked radio. There is WCDMA in the options and currently I'm using 850, my carrier also supports 2100 and I wanna see how's the reception on that frequency.
http://en.wikipedia.org/wiki/W-CDMA_(UMTS) it says it's using the gsm core which would explain why it's working and is preferred for me. If I choose the gsm band I don't have radio.
My network is HSPA, which and option for it doesn't exist so I'm guessing that's what the WCDMA is referring.

xda bugged out 1 can be deleted.

what are you entering to get into that mode? Mine says MMI not available.

*#2263# it's only unlocked on the rogers radio

thought so, I'm getting "connection problem or invalid MMI code". I'm running I727RUXLF3 and like everything else on the phone, it's gone to hell too it looks like.

I'm on the same base(using sky ICS tho) and its working, remember you need to do it with the stock dialer.

Are you talking regular stock Rogers dialer or the stock cm9 dialer?

Technically its that specific rom's stock but it's probably a different code at cm9, that's a completely different build as I understand it.

Skyrocket i727 with Tmobile at LTE/4G Speeds

Guys,
I just noticed my SGII gets LTE Mobile network type at work today. Below is my what I have.
Unlocked ATT Skyrocket i727
[ROM][OFFICIAL][CyanogenMod 10.1 Nightlies for Skyrocket] Build 0609
RADIO UCMC1
You don't need expensive TMobile iPhone 5 to get LTE speed.
Good luck and have fun!!

What's you location ?

mahanddeem said:
What's you location ?
Click to expand...
Click to collapse
Dallas Campbell, TX I think T-Mobile just have their network re-farm done here recently.
See HERE for the re-farm map.

Thank you. I live in Lewisville but my cousin told me all the Carlton area he was getting LTE. Do you also get 3g or HSPA+ because on mine i get 3g for sometime then i have no signal at all. i have click on 2g network only to get signal. Also which APN are you using?

justforgot;42621621. switchyou. I live in Lewisville but my cousin told me all the Carlton area he was getting LTE. Do you also get 3g or HSPA+ because on mine i get 3g for sometime then i have no signal at all. i have click on 2g network only to get signal. Also which APN are you using?[/QUOTE said:
Yes, I get HSPA+ / 3G too.
fast.t-mobile com is the APN that I am using.
You can use *#*#4636#*#* to change your preferred network type. I am using LTE/GSM auto (PRL)
Click to expand...
Click to collapse

Thank you. And one more question if i do this
You can use *#*#4636#*#* to change your preferred network type. I am using LTE/GSM auto (PRL)
Will i get both lte and 3g/hspa because i'm stuck at Edge but i know my area have good service. Because on my mom's iphone 3g it does have 3g signal it uses 1900 mhz

There messing with the 4g as I type this in warren/Detroit Michigan not yet strong enough to get a speed test. will update
Edit: here's lte

justforgot said:
Thank you. And one more question if i do this
You can use *#*#4636#*#* to change your preferred network type. I am using LTE/GSM auto (PRL)
Will i get both lte and 3g/hspa because i'm stuck at Edge but i know my area have good service. Because on my mom's iphone 3g it does have 3g signal it uses 1900 mhz
Click to expand...
Click to collapse
Sure you can get LTE/HSPA+/HSPA/3G(UMTS)/EDGE with that depends on how strong the T-Mobile signal is at your location.

Yeah. I tried everything but no luck. My cousin had lte on his iPhone at my house. My s1 have 3g/h on it running 1900 mhz. I'm stuck on 2g or just no signal at all
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

justforgot said:
Yeah. I tried everything but no luck. My cousin had lte on his iPhone at my house. My s1 have 3g/h on it running 1900 mhz. I'm stuck on 2g or just no signal at all
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
Does it stay on the Network type when you change it? Is 'use only '2G networks' option enabled on your Mobile network settings?
Try to flash to another RADIO and flash back to UCMC1 on CWM. If it still doesn't work, flash to stock AT&T ROM and make sure you can get other than EDGE speed and then flash CM 10.1.
Good luck.

Thank you. I'll Do As you say Tommorow. Eariler when i flashed 10.1 on this phone i had 3g/hspa but after half day i got pushed back to edge. After that i never got 3g/hspa. I have to check the 2g Networks only if i don't my phone won't get any signal.

justforgot said:
Thank you. I'll Do As you say Tommorow. Eariler when i flashed 10.1 on this phone i had 3g/hspa but after half day i got pushed back to edge. After that i never got 3g/hspa. I have to check the 2g Networks only if i don't my phone won't get any signal.
Click to expand...
Click to collapse
That explains why you get EDGE 2 because of that. I suggest you to diable 'use only '2G networks' option and to flash [RADIO][UXUMA7] For I727/I727R on CWM to see if can get HSPA+/3G first after that.

Still stuck on Edge. I tried *#*#4636#*#* method but still no luck.

justforgot said:
Still stuck on Edge. I tried *#*#4636#*#* method but still no luck.
Click to expand...
Click to collapse
Sounds like you do need to flash the ROMs like I have suggested.

I'm on cm 10.1 regular cyanogen and did flash ucmc1 but still no luck.

Getting LTE speeds on mine unrooted and not flashed. On fast t-mobile APN.

/\
Surprising to find a rocket still on GB !!! lol
Good speeds you're getting.,

Yeah. I notice that too.
I did get utms signal but couldn't access data.
Re-flashing stock 4.1.2
Sent from my LG-P999 using xda app-developers app

mahanddeem said:
/\
Surprising to find a rocket still on GB !!! lol
Good speeds you're getting.,
Click to expand...
Click to collapse
Yea, looks like CM 10.1 should be nearing a stable release soon so I'll root it then. I'm coming from a HTC Glacier since the devs decided to stop supporting it.
One thing's for sure though, LTE tends to burn through my battery. I hope it gets better once it's rooted.
Did you get better reception when you flashed the i757m radio?

justforgot said:
Still stuck on Edge. I tried *#*#4636#*#* method but still no luck.
Click to expand...
Click to collapse
I am running Embryo 6.11 (JB 4.1.2) ROM using T-Mobile's SIM, and was able to get LTE using both the UCMC1 and UXUMA7 radios. However, the phone defaults to EDGE when outside of the LTE area, instead of switching to HSPA+/HSPA 3G. Using *#*#4636#*#*, my network selector is set to LTE/WCDMA/GSM. I would have to manually set it to WCDMA only to pick up HSPA+/HSPA. Then when I toggle back to LTE/WCDMA/GSM, the radio picks up HSPA+/HSPA. Hope this helps!

[Q] Can't turn on 1700 band

Hi All
I have a problem, and don't really know that to do. I have a Samsung Galaxy S Relay 4g, rooted, running the latest nightly and modem. Recently I went on vacation to Europe and while there used local sim cards from t-mobile Eu. At first nothing worked, Then I read some forums and from there learned of the *#*#4636#*#* code. Used the Select Radio Band option and switched to the Euro band selection. All was well Europe SIM cards worked Data, voice everything.
I get back to Canada, and I figure I need to switch back to the USA band. So I do. but still no service, no voice or data. I can get roaming. but that's not really an option. I see the network operators Bell and Rogers, but no Wind or Mobilicity(who use the 1700 band). I'm on wind. So to me it looks like the 1700 mhz band is turned off on my phone.
So far I have tried...
Used the *#*#4636#*#* multiple times switching bands...
Tried using the settings menu to select wcdma preferred or global
Re-flashing the modem
Flashing to the newest nightly
Tried a verified good SIM card
Nothing works....
I'm thinking I may have to go back to the stock t mobile software and try to turn on the radio there...
So does anyone have an idea what could be missing? Or how to specifically turn on the 1700 mhz band? The select radio band pop up only has two options Euro band and USA band.
Any help would be greatly appreciated!

Okay!
So I think I'm back up and running, all AWS networks in Canada show up. Haven't tried data or voice, but I'll be doing that on the way home from work...I'll post after if things still don't work...
So these are the steps I took....
1. Using CWM I did a full back up to an SD card.
2. Then using CWM I flashed the stock JB firmware from here http://forum.xda-developers.com/showpost.php?p=41209211&postcount=1
3. In the Dialer app. I dialed *#197328640# navigated through the gsm,lte,wcdma options and set the band selection to automatic.
4. Tested phone on stock to see if it picks up the networks...and it did!
5. Using CWM restored my original cyanogenmod install with all settings and software.
6. Tested network connectivity again, and the networks now show up.
On the way home I'll do some tests with data and voice.

Looks like everything works! woot!

It looks like there's a bug in the band selection code. It should be offering you the AWS frequencies, as well an an automatic everything choice.
I'll look into a fix for apexqtmo. In addition, I will nuke the CDMA options, they're not needed and probably causing other problems.
Sent from my SGH-T699 using Tapatalk 4