Develop Bugs

GSM Frequeny

I have a Orange SIM card which I got in Israel, I am now in Canada and that SIM works fine on my friends Nokia 6600, but when I try to use it with my XDA IIs I can't find any networks or anything. I am guessing its the GSM frequecy although the phone supports all of them. Does anyone have any idea what I need to do to get the SIM to work here? Does anyone know how to manually select a GSM frequency?
XDA IIs
ROM Version: 1.40.00 WWE
Radio Version: 1.15.00
Protocol Version: 1337.45

Hello psytech,
I believe you're roaming. Sometimes, you really cannot just plug your sim card then voila its working. If you are roaming, most of the time you really have to manually select the network.
anyway, i'm currently using windows mobile 2005, and no longer using windows mobile 2003 SE. i hope i could still help you or atleast you can see the pattern on how to do it.
here what you do:
1. click on the signal strength icon (the icon located on the upper right most portion of your screen just beside the speaker icon)
2. a dialogue box will appear with a clickable 'settings' button (located on lower left part of the dialogue box.), click the 'settings'
3. you will then see 3 tabs on the bottom part of the screen, 'phone', 'services', 'network'. click on 'network'.
4. you should find something like 'find network' button there, then just but before you click on it, choose 'manual' for network selection.
the rest is self explanatory, i hope i was able to help you. cheers!

You say your orange sim works fine on your friends nokia but does not work in your IIs.
Is it possible that your IIS device is sim locked as in will only work on the O2 network in the country you got it from.
If so unlock it via wiki (link in sig)

not it
I forgot to mention that the SIM worked fine in Isreal, my original SIM is orange (I do have an account with) I just can't get support cause I didn't buy the phone from them (capitalists).
About the network search. Thats what I've been doing for the last couple of days but I can not find ANY networks at all. which is what leads me to believe that its a GSM frequency problem.

What happens if you put your friends sim in your phone
GSM in Canada is generally 1900 http://www.gsmworld.com/roaming/gsminfo/cou_ca.shtml

doesn't work either
My friend's SIM doesn't work on my phone either. If canada is 1900, how can I make sure that my phone is currently using 1900. (I know it supports it, but how do I actually see that its actually scanning with it?)

What happens if you go to Settings->Phone->Network and then change Network Selection to Manual.
You should then get a list of networks. This will list all networks even if you cannot connect to them.
[edit] This has already be suggested earlier in the thread
If you do get some networks then the only reason that I can think of that you are not connecting is that under Prefered Networks you have a network selected that your carrier does not have a roaming agreement with.
Check your provider's website to see who they have agreements with.

no networks
My provider (Orange) has agreements with Rodgers, but my problem is that I am not listing ANY networks, I tried manual and even added the Rodgers network to my favorite networks, but when I try to search for networks I can't find any, I just get a blank window. This is very odd to me and I've never heard of anyone with that problem.
Like I've mentioned before, I updated my windows to TuMa 1.4 and my radio to 1.1.15. If there's anything else I need to do or anything I may not have done when I updated my network please tell me.
btw when I installed that TuMa windows I change my ID thingy to Tmobile.

Problem solved
Attenttion everyone:
It has come to my attention that there is a problem in the Band Selection CAB when it comes to certian cellular providers.
The problem so far appears on a Cellular One network that only supports 850Mhz. When the North American Option is choosen in the Band tab, the phone can not find a network to register on. I'm not quite sure why this happens yet, but there is a solution to fix.
http://relaysgoldens.com/sx66/ext_roms/BandSelect-fix.CAB
By installing this CAB, it provides a fourth option on the band tab, "Reset Value to Zero".
By selecting this option, the phone will be reset to it's default state, and will work normally.
I've trapped this as a bug in the 1.40.124 extrom and will be working to figure this out.
Note: the band selection setting is persistant, and will not be reset even if you downgrade the ROMs on the phone. If you are experiencing this problem, the ONLY way to reset the value is to use the CAB above.
-Chris
P.S. I've also updated the 1.40.124 RAR file on the website to include the updated bandselect CAB.
Click to expand...
Click to collapse
I found that at http://pdaphonehome.com/forums/showthread.php?s=&threadid=53121 and it worked.

Force Roaming Carrier

Since upgrading to 2.2 I can't manually select and KEEP a roaming provider. If I switch on plane mode or reboot, it will then select a roaming carrier automatically, which is always the wrong one. I need to force it to a particular one because of a data roaming agreement with Softbank.
When I used to use iphone it was easy. Select the carrier manually and it would only connect to that carrier.
Is there an app, fix or something similar out there?

Cant you manually set your APN?

andrewluecke said:
Cant you manually set your APN?
Click to expand...
Click to collapse
yes, but it's the carrier i need to force when overseas. softbank has agreements in place with carriers around the world to cap the data charge per day. on any of my old nokia's etc i could manually select the carrier and it would remember it all the time until i changed it back to auto when i landed back in my home country. Android does not remember your selection though.

[Q] Rogers GS3 unlocked for ATT - NO DATA!

I have a galaxy S3 (SGH-I747) originally on Rogers form Canada. I bought an Un lock code and unlocked it. The phone shows signal, makes calls and SMS, but NO 4G and NO network access. (internet pages don't load when disconnected from WiFi)
Under Mobile Network I cannot connect to ATT's network. Does anybody know what I'm doing wrong? Or is there a ROM i need to install after I ROOT the phone? Do I even need to ROOT it? (Sorry in advance, i come from the world of Jailbreaking, but have rooted Droids in the past)
Thx!

I'm not an expert, but you probably need to check your APN settings, and change them to AT&Ts if they aren't already. You can check this in Settings -> More Settings (in Wireless and networks section) -> Mobile Networks -> Access Point Names
I don't know what the AT&T settings should be, but you can probably find it easily enough. Also, you might want to Shut down the phone, remove the SIM, reboot without a sim, then shut down and put it in again to make it read the APN settings from the sim

Try flashing the ATT rom and see if that makes it work to start.

Got It!!!
I had to manually add my APN settings. I was over looking the button on the bottom left to configure it.
Thanks for the help!:cyclops:

Does the SGH-I747 (Rogers version form Canada) pick up LTE on AT&T?

[Q] New phone -- no data. Suggestions?

OK, I took the plunge and got one. Checked a few things out, then went for the ICS update (official AT&T, at least for now) before I got too wrapped up in it. Seems I may have forgotten to check out that the data plan worked before the update -- I think I may have had Wi-Fi on all the time. Yeah, it was a dumb mistake.
Now I cannot get any data with any application when outside a Wi-Fi zone. Not even 2G, much less 3G. No connection and no indicator at the top. Phone is working on 3G just fine.
I have AT&T, though it's an old "Smartphone Unlimited" plan. It works just fine on my LG Expo (which is 3G). The phone is supposed to be unlocked (at least until I updated it, don't know if that affected it), but I have no non-AT&T SIM with which to try it. Have made no attempt to root it or load a custom ROM.
Are there some settings somewhere that I have to change to go through my old "wap.cingular" gateway (either rooted or not)? Should I try going to a custom ROM? Back to the original software (link, please, if that's the case)?
I'm going to see if a co-worker's T-Mobile SIM works with it (voice and/or data). But is there anything else I should try? Has AT&T finally caught up with me and my old, cheap, unlimited data plan and my SIM keeps me from connecting?

There should be no issue putting in a SIM from a working phone. If you go to System Settings->About Phone->Status, what is the network status? "Unavailable"? "Unprovisioned"?
Do you have signal, just no data, or do you have no signal?

I have full phone and text service, just no data (though, oddly, it says I have used 9.92KB of data). That occurs both at my home where I connect to my microcell and elsewhere. Of course, at home, I can also use WiFi for data.
"Mobile Network State" is "Disconnected". "Mobile Network Type" is "UTMS:3." If I turn the data network off and back on, it goes to "connecting" for a while, then back to "disconnected. I did find the location where it specifies the Access Point Names and it is set to "wap.cingular" just like my old phone. But unlike my old phone, the user name and password are "not set". These are uneditable fields.
I also went to the place it allows me to select my network operator and it offered me three different "AT&T" options. Two of the three gave me a message that my SIM does not allow connection to that network. When I try to switch to one of them, I see the data indicator go through Edge, 3G, and 4G, then off.
Only other odd thing I've noted is that the serial number is all zeros. The IMEI is correct, though; and I think that's what matters.
I'm becoming more and more convinced this is a problem with my SIM and the data plan it's tied to. It is from an old EDGE-only Windows Mobile 5 "smart phone" when that meant a device without a touch screen or QWERTY keyboard and a "PDA" was something that had either of those. The "Smart Phone" data plan was half that for a "PDA" but more than for a plain phone, and that's what I'm still paying. I've been buying phones outside of the AT&T system to hang on to that inexpensive, unlimited plan; but I may have reached the end of the line with it. I definitely need to try a SIM from another 4G capable phone,. both AT&T and T-Mobile, to see where I stand.

Tiger Shark said:
I have full phone and text service, just no data (though, oddly, it says I have used 9.92KB of data). That occurs both at my home where I connect to my microcell and elsewhere. Of course, at home, I can also use WiFi for data.
"Mobile Network State" is "Disconnected". "Mobile Network Type" is "UTMS:3." If I turn the data network off and back on, it goes to "connecting" for a while, then back to "disconnected. I did find the location where it specifies the Access Point Names and it is set to "wap.cingular" just like my old phone. But unlike my old phone, the user name and password are "not set". These are uneditable fields.
I also went to the place it allows me to select my network operator and it offered me three different "AT&T" options. Two of the three gave me a message that my SIM does not allow connection to that network. When I try to switch to one of them, I see the data indicator go through Edge, 3G, and 4G, then off.
Only other odd thing I've noted is that the serial number is all zeros. The IMEI is correct, though; and I think that's what matters.
I'm becoming more and more convinced this is a problem with my SIM and the data plan it's tied to. It is from an old EDGE-only Windows Mobile 5 "smart phone" when that meant a device without a touch screen or QWERTY keyboard and a "PDA" was something that had either of those. The "Smart Phone" data plan was half that for a "PDA" but more than for a plain phone, and that's what I'm still paying. I've been buying phones outside of the AT&T system to hang on to that inexpensive, unlimited plan; but I may have reached the end of the line with it. I definitely need to try a SIM from another 4G capable phone,. both AT&T and T-Mobile, to see where I stand.
Click to expand...
Click to collapse
In the Access Point Names make sure that the profile you were talking about is selected. Or from that screen if you hit the menu button it should give you the option of entering your own APN. If you've had data working on another phone I would suggest duplicating the APN settings from it and try making a new profile.
It could be the SIM/plan you're currently on but honestly this sounds exactly like what happens when your APN settings aren't configured correctly.

Turn the phone off, remove the SIM, boot it with no SIM. Go into Access Point Names and remove all the entries. Turn it off, put the SIM back in, turn it back on. If it doesn't autocreate an entry in Access Point Names, or the autocreated entry still doesn't work, take it to an AT&T store and ask them for help.

m1batt1 said:
In the Access Point Names make sure that the profile you were talking about is selected. Or from that screen if you hit the menu button it should give you the option of entering your own APN. If you've had data working on another phone I would suggest duplicating the APN settings from it and try making a new profile.
It could be the SIM/plan you're currently on but honestly this sounds exactly like what happens when your APN settings aren't configured correctly.
Click to expand...
Click to collapse
There was no way to select the plan. So I made a duplicate of it, which did have a select button, selected it, and it now works great. Thanks so much for your help.

roothorick said:
take it to an AT&T store and ask them for help.
Click to expand...
Click to collapse
That would have ben last resort. They would have wanted to "upgrade" my data plan to something that cost more and isn't unlimited.
Your solution might have also worked, but the first one offered led me to a solution, so I never tried yours. I'll keep it in mind, though.

Tiger Shark said:
There was no way to select the plan. So I made a duplicate of it, which did have a select button, selected it, and it now works great. Thanks so much for your help.
Click to expand...
Click to collapse
Glad it worked out for you!
Sent from my SGH-I927 using xda app-developers app

Question How to change preferred network type?

I'm on EE UK but the preferred network type setting doesn't appear to be present in SIM options?

It appears that some providers suck hard and don't want to allow you to switch networks. That's not a phone thing-y, it's a provider thing-y. Which means that your phone will of course still change networks, but only if the "higher" one is not available, ergo your phone will only connect to 4G, if 5G is not available - if the 5G connection is bad, that will probably cause problems for you, because your phone will probably not want to connect to 4G automatically.
I can easily switch preferred network types
Settings -> Network & Speed -> SIMs -> (scroll down, between 4G Calling & Carrier settings version) -> Preferred network type (5G, 4G, 3G, 2G).
It that's not available, your network carrier sucks. No more to say here.
I'd suggest you either switch providers, or contact your provider to see if they are willing to change this. It's definitely on their end, cuz people like me can change the settings easily.

cd993 said:
I'm on EE UK but the preferred network type setting doesn't appear to be present in SIM options?
Click to expand...
Click to collapse
You may be able to change preferred network type with *#*#4636#*#* dialer code.

cd993 said:
I'm on EE UK but the preferred network type setting doesn't appear to be present in SIM options?
Click to expand...
Click to collapse
EE (& BT Mobile) hide the menu.

Morgrain said:
It appears that some providers suck hard and don't want to allow you to switch networks. That's not a phone thing-y, it's a provider thing-y. Which means that your phone will of course still change networks, but only if the "higher" one is not available, ergo your phone will only connect to 4G, if 5G is not available - if the 5G connection is bad, that will probably cause problems for you, because your phone will probably not want to connect to 4G automatically.
I can easily switch preferred network types
Settings -> Network & Speed -> SIMs -> (scroll down, between 4G Calling & Carrier settings version) -> Preferred network type (5G, 4G, 3G, 2G).
It that's not available, your network carrier sucks. No more to say here.
I'd suggest you either switch providers, or contact your provider to see if they are willing to change this. It's definitely on their end, cuz people like me can change the settings easily.
Click to expand...
Click to collapse
Or you could just make sure Adaptive Connectivity is enabled and not worry about it.
You would have to drag me away from EE (BT Mobile) screaming and kicking given the coverage and speeds they have, to say they suck over one menu option missing is absolutely laughable.

cd993 said:
I'm on EE UK but the preferred network type setting doesn't appear to be present in SIM options?
Click to expand...
Click to collapse
When the Note 20 first came out a lot of carriers wouldn't let you change network type but there's an app in the play store that was working on the notes.
Force 4G/5G Only - Apps on Google Play
Lock your phone to 4G/5G mode or VoLTE network
play.google.com

ggrant3876 said:
When the Note 20 first came out a lot of carriers wouldn't let you change network type but there's an app in the play store that was working on the notes.
Force 4G/5G Only - Apps on Google Play
Lock your phone to 4G/5G mode or VoLTE network
play.google.com
Click to expand...
Click to collapse
Crashes or alternately just disappeared for me when I click on the first option "4G LTE with only one SIM". Reported the crash. Thanks, though. Maybe they'll update it.

An alternative to the dialer code is to boot into safe mode, and the preferred network type setting will appear in: Settings -> Network & internet -> SIMs between Data warning & limit and Carrier settings version (at least it does on my Google Fi Pixel 6 Pro).