I hope someone can guide me about using Skyrocket in Japan or WCDMA 2100Mhz area.
First, I'm noob for Android from Blackberry, so please go easy with me.
I sent my wife to Japan with Sim unlocked I-727 skyrocket with SKYICE4.2E-12.5 ULCE2 modem (nice rom), and she cannot get Data connection with B-Mobile SIM after setting their APN correctly. B-Mobile support cannot figure out why it does not work.
SIM is for data only type, and they use DoCoMo antenna which is WCDMA2100Mhz, that I think Skyrocket should work.
I had no problem using T-mo Data SIM here in Chicago before I sent her out with Skyrocket. Got 2G with ULCE2 modem, 4G with VK1L modem. I flashed UCLE2 modem before I gave the Skyrocket to her.
Is she having trouble because ULCE2 is RAT locked(I don't have good understanding of it)? or is it because Seanzscream stripped world phone capability for battery sake when he updated to version 10 (I think it was)?
Which method below do you think to solve our problem?
I'm also open for other method as well.
1) Keep the Rom, and just flash Blaze RIL or VK1L modem, then choose WCDMA in /Setting/More/Mobile Network/
2) Keep ROM and Modem, and *#2263# WCDMA only.(possible?)
3) Go back to version 9 I backed up with Rom Manager?
Is anybody using SKYICE 4.2E in Europe or Asia where 2100Mhz band is used?
If so, what is your Modem and Radio setting? Do you get 3G or 4G with combination?
Thanks in advance for all your support!
Got it working!
Well, I was able to figure this out.
It seems SkyIce 4.2e does not support 2100Mhz WCDMA.
But installing other radio than ULCE2, it can be done, I guess.
This is what I did for the test, and I hope this can be helpful to others who may run into same problem.
With Leak 4.0.4, I can chosse WCDMA by *#2263#, and I got 4G icon and data was working. But I got "SIM not provisioned" error.
Restored SkyIce 4.2e I backed up.
*#2263# will give me selection, but not IMT2000 I needed to choose WCDMA.
So, no data in Japan which use 2100Mhz.
I did Wipe Cache Partition, Dalvik Cache wipe, then installed Blaze RIL radio.
Somehow, it made sim unrecongnized, and *#2263# did not give me any selection, I mean no list at all. I played around, and only after, Factory reset, fix permission, restored SkyIce Rom via CWM touch, I was able to choose WCDMA by *#2263# method. Lol, I had a 4G icon, and data was good after remaking APN. My wife gave me a good kiss over Skype. I think she won't bother me much when I get GSIII, and start playing around with it. lol.
Note: I had Apex Launcher as default because my wife liked it over TWUX. I don't think it make difference, but just in case anybody need exact set up.
Android up!
Related
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?
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.
Most of the reason I rooted my phone was to be able to force my at&t Skyrocket into 2g mode. I get little to no 3g coverage at work and when the phone switches to edge (2g) I get almost full bars. I have tried cm9 rom which has a known issue with forcing 2g anyway but gave it a shot. I also had aokp with no luck. And yes, I went to settings>network>use 2g mode on both roms. Then I went after radios......I know at&t has a rat locked radio so I thought I'd be clever and try the rogers rat unlocked radio. Got really good data speed, call quality, and signal other than work of course. But still didn't allow the force 2g mode. Tried the *#2263# or whatever and it won't even bring up a menu on at&t phones which is understandable because its a rogers thing. Then I tried the trusty ol *#*#4636#*#*. Wouldn't do anything either. Suggestions anyone? Or maybe its just impossible....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Nevermind
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
You can force the Skyrocket into GSM-only (2G/EDGE), but your ROM has to support it. Sky ICS does, not sure about others.
*Edit: Just tried it on my phone, and it seems to have worked fine.
tmanybill4u said:
Most of the reason I rooted my phone was to be able to force my at&t Skyrocket into 2g mode. I get little to no 3g coverage at work and when the phone switches to edge (2g) I get almost full bars. I have tried cm9 rom which has a known issue with forcing 2g anyway but gave it a shot. I also had aokp with no luck. And yes, I went to settings>network>use 2g mode on both roms. Then I went after radios......I know at&t has a rat locked radio so I thought I'd be clever and try the rogers rat unlocked radio. Got really good data speed, call quality, and signal other than work of course. But still didn't allow the force 2g mode. Tried the *#2263# or whatever and it won't even bring up a menu on at&t phones which is understandable because its a rogers thing. Then I tried the trusty ol *#*#4636#*#*. Wouldn't do anything either. Suggestions anyone? Or maybe its just impossible....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
You can on cm9 by first going to "select network operator" and choosing at&t. Then 2g networks only will stick. Thank cschmitt for this.
sent from my part of the problem
Sorry to mention I'm on Straight Talk. Should that matter? Don't think so
Sent from my SGH-I727 using xda app-developers app
T.J. Bender said:
You can force the Skyrocket into GSM-only (2G/EDGE), but your ROM has to support it. Sky ICS does, not sure about others.
*Edit: Just tried it on my phone, and it seems to have worked fine.
Click to expand...
Click to collapse
Greeting from Hong Kong.
I encounter the same problem. The 3G (WCDMA2100) signal at my home is too low (<-110dbm) to make a call but my Skrocket could not switch to the 2G network (GSM900 with -85dbm) automatically. I wonder if anyone has an apps that could switch the phone to 2G mode through the servicemode menu (*#2263#, 3, 6) and then back to 3G mode (*#2263#, 2, 6).
Bender mentioned that a Sky ICS ROM could do it. Please let me know where I can obtain this ICS. Thanks very much.
http://forum.xda-developers.com/showthread.php?t=1763195
Sent from my SAMSUNG-SGH-I727 using xda premium
yip2727 said:
Greeting from Hong Kong.
I encounter the same problem. The 3G (WCDMA2100) signal at my home is too low (<-110dbm) to make a call but my Skrocket could not switch to the 2G network (GSM900 with -85dbm) automatically. I wonder if anyone has an apps that could switch the phone to 2G mode through the servicemode menu (*#2263#, 3, 6) and then back to 3G mode (*#2263#, 2, 6).
Bender mentioned that a Sky ICS ROM could do it. Please let me know where I can obtain this ICS. Thanks very much.
Click to expand...
Click to collapse
I have installed ICS build 4.2F6R2 on my Skyrocket but still could not force my phone to 2G network. How can I do it please?? Thanks.
I have installed ICS build 4.2F6R2 on my Skyrocket but still could not force my phone to 2G network. How can I do it please?? Thanks.
Click to expand...
Click to collapse
setings, more, mobile networks? Or something similar.
I was wanting to do this without flashing a rom. I am running stock ICS AT&T i727UCLF6.
I have the same problem where i don't get very good 3g service, drop calls all the time and would just like to force it into 2g mode while at work. Why would this be removed from the rom should be a basic feature.
Install RAT unlocked modem, *#2263# and picking specific band that is supported by your provider suppose to work. Tho it's not gonna work on CM/AOSP based roms. It will work on att phones.
kishke said:
Install RAT unlocked modem, *#2263# and picking specific band that is supported by your provider suppose to work. Tho it's not gonna work on CM/AOSP based roms. It will work on att phones.
Click to expand...
Click to collapse
Thanks very much. Flashed the Rogers Offical ICS modem found here. [MODEM]Official Rodgers..Release Modem- UXLF3
I am able to change to 2g mode only now. However i was wondering if there is a possibility of automating the process via an app, instead of using the *#2263# via the dialer?
For G only: *#2263#, choose option 3 GSM band preference, Then GSM 1900 I did not get 2g on this option but I hear from others that you can.
For 2g only: *#2263#, choose option 3 GSM band preference, Then GSM 850 Never dropped to G but has the possibility to.
For 3g/HSPA only: *#2263#, choose option 2 WCDMA band preference, Then WCDMA 1900 or 850
To return to normal: *#2263#, Choose Automatic.
I don't have LTE in my area but I believe you can choose LTE B17 from LTE option to have LTE only. Didn't buy for LTE but because it was the best device (specs) through AT&T at the time.
Jnewell05 said:
Thanks very much. Flashed the Rogers Offical ICS modem found here. [MODEM]Official Rodgers..Release Modem- UXLF3
I am able to change to 2g mode only now. However i was wondering if there is a possibility of automating the process via an app, instead of using the *#2263# via the dialer?
For G only: *#2263#, choose option 3 GSM band preference, Then GSM 1900 I did not get 2g on this option but I hear from others that you can.
For 2g only: *#2263#, choose option 3 GSM band preference, Then GSM 850 Never dropped to G but has the possibility to.
For 3g/HSPA only: *#2263#, choose option 2 WCDMA band preference, Then WCDMA 1900 or 850
To return to normal: *#2263#, Choose Automatic.
I don't have LTE in my area but I believe you can choose LTE B17 from LTE option to have LTE only. Didn't buy for LTE but because it was the best device (specs) through AT&T at the time.
Click to expand...
Click to collapse
Not for our phones for ics. With a rogers based radio on gb yes. So u have to pick, pics and manual, or gb and app.
Which app works with gingerbread?
I bought one of these phones, rooted it, unlocked it, and installed CM9. I love the phone and OS, but I cannot get the 3G/4G to work on AT&T. Any ideas?
Yeah. The data network is incompatible. Different frequency.
Sent from my SGH-T769 using xda premium
Yeah I think all you can get is 2G (edge) on AT&T with the blaze.
I can say from first hand experience that the blaze works great with AT&T's 3g service. I bought this phone last week, unlocked it, and swapped in the sim from my old Aria and have been using it with CM10 ever since. Data speeds are around 3 to 6 Mb/s down and 1 Mb/s up, and voice and text messaging works fine.
For a more technical answer, AT&T uses the 850 mhz and 1900 mhz frequencies for UMTS (3g), and T-mobile uses 1700 mhz and 2100 mhz frequencies. The blaze supports UMTS on all of these frequencies so there are no technical roadblocks to using this phone with AT&T. http://www.phonearena.com/phones/Samsung-Galaxy-S-Blaze-4G_id6824
As for your problem of not getting 3g working, I had similar issues when first switching the sim card (especially on the stock rom). Check that your APN matches the one your old phone was using. On the stock rom, the phone did not auto detect the correct APN and this caused the 3g to not work. CM10 detected the correct APN right away though. Also, try turning data off and on or even rebooting the phone once you've checked your network settings.
I sold my other phone and no longer have it. Please confirm your APN settings, and how do I change them?
The blaze has all the frequencies necessary for it to do HSPA (3G/4G) on AT&T's networks.
You'll likely want to change the APN. On CM9/10, go to Settings -> Wireless & Networks + More... -> Mobile Network Settings -> Access Point Names.
I was careful in selecting this specific phone because of its compatibility with AT&T HSPA bands. I have tried the suggested tweaks to the APN settings within both CM9 and CM10, but I still get no visual notification that the phone is operating in 3G or 4G mode. The areas in which I have used the phone consistently provided 3G and/or 4G coverage consistently with my prior BlackBerry 9860.
Any additional tips/tricks would certainly be appreciated. I know this phone is capable of so much more than it's providing me at this point.
nellans57 said:
I was careful in selecting this specific phone because of its compatibility with AT&T HSPA bands. I have tried the suggested tweaks to the APN settings within both CM9 and CM10, but I still get no visual notification that the phone is operating in 3G or 4G mode. The areas in which I have used the phone consistently provided 3G and/or 4G coverage consistently with my prior BlackBerry 9860.
Any additional tips/tricks would certainly be appreciated. I know this phone is capable of so much more than it's providing me at this point.
Click to expand...
Click to collapse
have you tried running a speed test to see if maybe it's just that the icon isn't coming up?
That is why it was called the "Merger Proof Phone"
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