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.

Hide my phone from TMobile's network!

I like to use phones that tmobile usa doesn't carry because my internet plan will only work with normal phones and phones that tmobile doesnt recognize. Well, I'm using a tmobile dash right now cracked with kavana's rom and I'm wondering if I can change some system information in it that will make the network think that it's another unrecognizeable phone.
Does anyone know how I can do this?
THANKS

nbradford said:
I like to use phones that tmobile usa doesn't carry because my internet plan will only work with normal phones and phones that tmobile doesnt recognize. Well, I'm using a tmobile dash right now cracked with kavana's rom and I'm wondering if I can change some system information in it that will make the network think that it's another unrecognizeable phone.
Does anyone know how I can do this?
THANKS
Click to expand...
Click to collapse
Well let me see if I'm getting what you post....
You are basically asking some "magic (app)" so that T mobile doesn't recognize the actual dash. Not recognizing other phone will avoid paying more for your plan right?
This is what I called "Illegal polite undercover fraud request" from my point of view or I'm wrong ? This is not allowed here dude,

There is simply no way of cheating here. The contract (or payment) is identified by the IMSI (SIM Card) - not the device (IMEI) - and the traffic is identified by the APNs you set (GPRS settings). The IMEI of the device is completely useless in that regard.
You cannot cheat - that easy.
Operators are sometimes linking web-applications to the IMEI identifying the device type to optimize services in a device specific (e.g. MMS) way.
Changing the IMEI is simply
illegal
very hard to do and you will not find any service that will do it for you, neither at XDA-developers nor at those sites that deal with SIM Unlocking. They have the best knowledge of how to deal with the encrypted areas that safeguard the operators settings linked to the HW of the device.
If you could succeed to "fake" the IMEI to be of another device-type, some services that depend on the correct evaluation of this (MMS, other services) mail fail on your device because they do not match the real needs of the device.
If operators detect bogus IMEIs in their network, they may simply refuse to serve this device and you cannot log into the network any longer.
Spend your efforts on something more useful than trying to cheat the operator.

ok for the simple fact of using my brain and knowing how any computer system works.... yes. yes there is a way to make ur phone appear to be another its just not an app, it has to do with someting alot deeper... but that thats all im saying it is possible but immoral im sure.

tobbbie said:
There is simply no way of cheating here. The contract (or payment) is identified by the IMSI (SIM Card) - not the device (IMEI) - and the traffic is identified by the APNs you set (GPRS settings). The IMEI of the device is completely useless in that regard.
You cannot cheat - that easy.
Operators are sometimes linking web-applications to the IMEI identifying the device type to optimize services in a device specific (e.g. MMS) way.
Changing the IMEI is simply
illegal
very hard to do and you will not find any service that will do it for you, neither at XDA-developers nor at those sites that deal with SIM Unlocking. They have the best knowledge of how to deal with the encrypted areas that safeguard the operators settings linked to the HW of the device.
If you could succeed to "fake" the IMEI to be of another device-type, some services that depend on the correct evaluation of this (MMS, other services) mail fail on your device because they do not match the real needs of the device.
If operators detect bogus IMEIs in their network, they may simply refuse to serve this device and you cannot log into the network any longer.
Spend your efforts on something more useful than trying to cheat the operator.
Click to expand...
Click to collapse
Thanks dude for the explanation, I think this guy wanted that us start discussing the "changing IMEI" topic .

tutsuo said:
ok for the simple fact of using my brain and knowing how any computer system works.... yes. yes there is a way to make ur phone appear to be another its just not an app, it has to do with someting alot deeper... but that thats all im saying it is possible but immoral im sure.
Click to expand...
Click to collapse
Anything is possible if you pay the right people. Knowledge how to change the encrypted block consistently is rare and kept secret as those guys build a business around it.
But changing the IMEI is so useless imho - why waste time doing so? Especially as it will not even help you to get free calls or data transfer.

i know what OP is getting at. its similar to tzones. just go on to your tmobile account and change the phone to an old one that uses tzones such as the razor, if that doesnt work try going to a store and asking for that service by showing them an old phone. after the service has been activated all you have to do is change your network settings (internet2.voicestream.com) it worked for me for years, but sadly moved on to android which uses a 3g network. good luck.

Yeah - that's what I say:
you can configure services that are used on the network
but you cannot hide the device you are using from the network itself
Any messing around making things seem different than they are will get you strange behavior of application services - but it will not save you any money.

fliparsenal said:
i know what OP is getting at. its similar to tzones. just go on to your tmobile account and change the phone to an old one that uses tzones such as the razor, if that doesnt work try going to a store and asking for that service by showing them an old phone. after the service has been activated all you have to do is change your network settings (internet2.voicestream.com) it worked for me for years, but sadly moved on to android which uses a 3g network. good luck.
Click to expand...
Click to collapse
So, basically you have told him the secret . Does this save you money at all? or it doesn't matter.

Mr. Clown said:
So, basically you have told him the secret . Does this save you money at all? or it doesn't matter.
Click to expand...
Click to collapse
This an "APN" I talked about earlier. Operators have several for different intended services (e.g. internet), but they try to keep things simple and reduce the amount of APN recently (so finally you have only one).
Per APN (Access Point Name):
The IP routing may be restricted (e.g. only to the mail server)
Charging may be different (kb/$)
The use of certain APN is restricted to you user profile, i.e. not everyone can use any APN
Depending on how strict the operators are handling the last point and how close they observe the generated traffic per user you may occasionally be lucky to sneak through with your traffic.
Mind however that for all traffic the operators are logging the IMSI (SIM Card) that generates it - so also for prepaid cards it may suddenly happen that your money is gone for old bytes that have been found linked to your SIM.

[Q] Network settings

Hi all developers! I have one question - have anyone information about where home network information placed? As I see radio settings is independent from ROM settings. Also I see that some settings placed in ROM, for example Call section's NBPCD and Assisted Dialing settings. Problem is that I use Incredible outside from U.S. and some programs wouldn't work fine because it have some limitations in US - for example new Skype work only in WiFi mode. Then I try to run it in 3G network it's write attention like "In the United States you can only make Skype calls over WiFi". Can we fix it?
P.S. changing NBPCD and Assisted Dialing settings give result only for call making process, not for global network settings.
P.P.S. I found one way - we can change file build.prop in ROM image (system/build.prop). There is two sections - ro.cdma.home.operator.numeric and ro.cdma.home.operator.alpha. I change it to my operator's default settings and bingo, I have stock Skype.apk, that work in 3G network. Next step is change stock's backup image. So, have anybody information about OS files, where this information placed?
Last update - simplest way for change build.prop at installed image is SDK's adb pull and adb push commands use. It's checked and really worked.

sobolkz said:
Hi all developers! I have one question - have anyone information about where home network information placed? As I see radio settings is independent from ROM settings. Also I see that some settings placed in ROM, for example Call section's NBPCD and Assisted Dialing settings. Problem is that I use Incredible outside from U.S. and some programs wouldn't work fine because it have some limitations in US - for example new Skype work only in WiFi mode. Then I try to run it in 3G network it's write attention like "In the United States you can only make Skype calls over WiFi". Can we fix it?
P.S. changing NBPCD and Assisted Dialing settings give result only for call making process, not for global network settings.
Click to expand...
Click to collapse
I thought I had read somewhere that verizon is letting Skype work over 3G. If I can find it again, I'll post it here.

Found a hacked APK over at DroidForums. I'll try to post the link.
http://www.droidforums.net/forum/xeudoxus/78843-apks-unlocked-apps.html

Desire low to no signal at home

Hi guys/gals,
HTC Desire A8183 nextG Telstra bought outright.
All works fine with as supplied 2.2
The biggest headache is phone signal strength ... at home usually ...
0 bar = 109-113dBm / 0-2asu
1 bar = 107dBM / 3asu
3 bar = 97dBM / 8asu
At work ...
4 bars = 51-61dBM / 23-31asu
This is with Telstra nextG sim in, at the moment I'm using Amaysim (Optus) and it's the same maybe a little worse.
Sometimes when you first activate the screen there's no bars then 4 then 3-2-1-0 again, with Amaysim you get broken conversation and occasional resend txt messages and telstra most times conversation was ok and no resend txt's.
I'v seen you can change radio ?! to help with signal strength ... or would it be better to root the phone and use ???? program, as mentioned it all work as I need except signal so not looking for better battery or features just get a better signal.
Side note are the program's used to root the phone only run on Windoze ?
I use Intel iMac
Thks Greg

To change the radio, you must be ROOTED.
Unrevoked works on Mac, as well. Download it from here.
BTW, are you getting a good signal at home with other phones with the same SIM Card?
You may also try set this:
Some users experience longer battery life, if they switch from WCDMA preferred to GSM auto (PRL) - mostly in areas of bad reception.
To do this enter the Secret menu on the phone (*#*#4636#*#*), hit Phone information and set it under "Set preffered network type".
Click to expand...
Click to collapse

Thks nagypapi,
Yeah LG U990 same problem on 3, Telstra nextG and Amaysim sim's.
WCDMA only, GSM only, GSM/WCDMA auto ... there the only choices in "preferred network mode" this is available in menu on 2.2 with going into the secret vault.
GSM only shows better signal bars but is worse in a call, I leave it on GSM/WCDMA auto.
I see there is more option in the vault might try them.
Is there any program that you would suggest that's ezy without to many problems as mentioned all the function in 2.2 are fine for me just need to get better signal.
Thks Greg

What is your current Radio (Baseband version number)?

Baseband version # 32.48.00.32U_5.11.05.14
Greg

Okay, so there is newer version, which I am using. The good news is, that the new radio is more battery efficient. The bad news - reception remained the same.
Bottom line, installing it won't get rid of your problem.
You need an antenna to boost your signal at home - because you've said, that you have problems with all of your phones.
Found some sites, take a look around:
http://cellphoneboosterstore.com/
http://www.alternativewireless.com/cellular-antennas/improving-cell-phone-reception/antennaadvice.html

Thks again nagypapi for all you help and the links ...
I'v emailed telstra's customer service to ask if they would refund my money on the phone it's there own nextg branded phone on there network doesn't work,
there coverage map shows I should get full service, not holding my breath but feel like a bit of sh!t stirring is in order.
Greg

I hate to burst your bubble, but for starters, I doubt your phone is defective. Secondly, a coverage map means nothing. If you're in a valley for example and the towers are on the other side of the hills, you're gonna get bad reception.
I agree in some ways that a newer radio might help things. But ultimately your phone can only receive a decent signal strength if the coverage in that area is of that strength.
Perhaps go with one of those signal boosters.

[Q] Change preferred network order?

I have a slightly odd requirement, and I wondered if there was any way to fix it:
My carrier has a partnership with a second carrier so we can roam on each others networks for no extra cost.
Where I live, my own carrier only gives me a 2G signal, whereas the other gets 3G. Thing is, I have to physically select the other network. If it's on Automatic, it always "prefers" my own carrier.
This is fine until I'm on the other side of town where the other network gets no signal at all. I then have to manually select my own carrier again!
Is there any way to get it to prefer the other network, or even more ideally, prefer the one that offers the better signal at any given point?

Hi,
a bit of *bump* because I'm struggling with the same issue. I had such option on my previous samsung i780 (oooold) and it worked like a charm.
Currently my mobile operator has 2 roaming partners and if I want to change quickly the preferred order (because in some location it might have better coverage but only there and only for a while) I wold have to switch simcard to the old phone...
Isn't there at even a separate aplication to do that? Does andorid API allow such modification?

Glad I'm not the only one!
Interesting you mention an app to do it... i've not looked actually. If an app can access the list of networks and actually set the phone to use one, then I guess it would be possible. I'll check it out...

to the best of my understanding this is somewhat network option/setting and when suggesting an app I was thinging abount some way to read this setting, modify it and then save/send back to network. It would be a matter of access to the network settings from the API and knowledge how to operate it....

Still investigating this. Looks like the stuff to access the list of networks is in some internal APIs, so a little harder to access. I'll post back when I learn more...

Hey I hope you guys can figure this out have you tried the *#*#4636#*#* command and changed the radio? This will select the most preferred network.. e.g. I'm with Telstra in Australia, the stock radio defaults to 2100MHz but Telstra's HSPA+ is 850Mhz.. so I have to switch to AUS2 radio so it defaults to that every time.
Sent from my Galaxy Nexus using xda premium

@Simmo3D
It's not about the radio band but about the service provider itself.