Develop Bugs

LG P930 can't connect to cellular UTMS network

Hi everyone,
So I installed CM10 on my P930. Since then, I couldn't connect to my carrier's cellular network. I can't make calls, receive text messages, or access mobile data. Can anyone give me some advice in terms of what to do?
Thanks.

p3vuong said:
Hi everyone,
So I installed CM10 on my P930. Since then, I couldn't connect to my carrier's cellular network. I can't make calls, receive text messages, or access mobile data. Can anyone give me some advice in terms of what to do?
Thanks.
Click to expand...
Click to collapse
Try flashing your base bands again, and drumist has a nice thread in android development section with most bb
Sent from my LG-P930 using xda premium

rani9990 said:
Try flashing your base bands again, and drumist has a nice thread in android development section with most bb
Sent from my LG-P930 using xda premium
Click to expand...
Click to collapse
Hi Rani,
No luck. I flashed every single baseband there was in this thread by drumist (http://forum.xda-developers.com/showthread.php?t=1842763), but none worked.

well try unbrick and don't flash official ics

I tried the unbrick, no luck either.
I just noticed that the lock screen says no SIM card, when I actually do have a SIM card installed.

p3vuong said:
I tried the unbrick, no luck either.
I just noticed that the lock screen says no SIM card, when I actually do have a SIM card installed.
Click to expand...
Click to collapse
Are you on at&t? I think those basebands are at&t only. If you are bad sim?
Sent from my LG-P930 using xda app-developers app

Swetnes said:
Are you on at&t? I think those basebands are at&t only. If you are bad sim?
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
No, the original carrier is Bell. I unlocked it and I'm using it on Rogers now. I tried another Rogers SIM, but still don't work.

You probably need to put in your APN settings.

does anyone have the Bell stock gingerbread ROM i could restore? Want to send it to LG for warranty repair. I looked at the SIM slot and it looks like its missing a gold contact (top right).

set apn....
Sent from my LG-SU640 using xda premium

Data issue...

Ok SO I could not find a proper thread for this since there are SO many threads. The issue I'm having is I got a Samsung galaxy S III that was unlocked, and after I put my ATT sim into it I could recieve texts and calls but I could not recieve data. So I rooted it and applied clockwork with all my mods and figured I could find some setting that would fix it... well I was wrong. I tried global, GSM and LTE settings none of which would give me data. If there is anything anyone can do to help I would be more than appreciative.

Synaaron said:
Ok SO I could not find a proper thread for this since there are SO many threads. The issue I'm having is I got a Samsung galaxy S III that was unlocked, and after I put my ATT sim into it I could recieve texts and calls but I could not recieve data. So I rooted it and applied clockwork with all my mods and figured I could find some setting that would fix it... well I was wrong. I tried global, GSM and LTE settings none of which would give me data. If there is anything anyone can do to help I would be more than appreciative.
Click to expand...
Click to collapse
Check ton make sure your proper APN setting is selected and filled in correct.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

In addition to the apn's, check your imei #

Also if this a new phone that u have not used before and just go call att so they can regester the devoce
Sent from my SAMSUNG-SGH-I747 using xda premium

Pbwizkid said:
Also if this a new phone that u have not used before and just go call att so they can regester the devoce
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
While I agree that you should always call at&t so they can register a device to your account, this will not help his current data issue
OP, is this an international s3, T-Mobile or at&t? What firmware/rom is installed? Again, verify your imei is intact

Ok so this is a verizon Galaxy S3. It is rooted running 4.1.2 JB, Kernal 3.0.31. After I got the phone I did go to an ATT store to register a micro sim because i didn't have one at the time. So the imei is registered to my sim card perfectly. I can get calls and texts without any issue but no data. How do I figure out what the apn settings are and if I have the right configuration?
Sent from my SCH-I535

Synaaron said:
Ok so this is a verizon Galaxy S3. It is rooted running 4.1.2 JB, Kernal 3.0.31. After I got the phone I did go to an ATT store to register a micro sim because i didn't have one at the time. So the imei is registered to my sim card perfectly. I can get calls and texts without any issue but no data. How do I figure out what the apn settings are and if I have the right configuration?
Sent from my SCH-I535
Click to expand...
Click to collapse
Stock APN settings can be found here based on your carrier.
http://forum.xda-developers.com/showthread.php?p=33060276
Settings > more > mobile networks > access point names
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Synaaron said:
Ok so this is a verizon Galaxy S3. It is rooted running 4.1.2 JB, Kernal 3.0.31. After I got the phone I did go to an ATT store to register a micro sim because i didn't have one at the time. So the imei is registered to my sim card perfectly. I can get calls and texts without any issue but no data. How do I figure out what the apn settings are and if I have the right configuration?
Sent from my SCH-I535
Click to expand...
Click to collapse
You do realize you're trying to use a cdma phone (verizon) on a gsm network (at&t), right? Different radios. Different technology. Won't work

Well it was unlocked at the phone has a gsm option so if it wasn't compatable I don't see why they would have the option there to actually use a gsm network.
Sent from my SCH-I535

Synaaron said:
Well it was unlocked at the phone has a gsm option so if it wasn't compatable I don't see why they would have the option there to actually use a gsm network.
Sent from my SCH-I535
Click to expand...
Click to collapse
You need to read more.
this phone only supports GSM with EDGE data.* This essentially means that you'll get 2G data speeds (unless you have a WiFi connection) because it doesn't support UMTS/HSPA+ which is required for international and U.S. 3G data. the 4G LTE frequency supported by this phone is only used in the U.S.* For those who don't know UMTS/HSPA+ is the 3G technology used by GSM carriers internationally (and used by AT&T and T-Mobile in the U.S.) which is different from the CDMA/EV-DO 3G technology used by Verizon and Sprint.*
This phone IS unlocked, that part is correct. But only for gsm carriers

So its preventing me from recieving ANY form of data possible?? It is a Verizon phone and I have ATT so you mean it doesn't support GSM then right?
Sent from my SCH-I535

You're in an at&t s3 forum with a verizon s3 that has zero data. If you really want to pursue this issue, you should start looking around in the Verizon S3 forums

Ugh that'll be the third forum I've gone to... I'm so lost
Sent from my SCH-I535

Synaaron said:
Ugh that'll be the third forum I've gone to... I'm so lost
Sent from my SCH-I535
Click to expand...
Click to collapse
you have a Verizon S3, that is the FIRST place you need to go. always go to the forum for the device you have, bro.
http://forum.xda-developers.com/forumdisplay.php?f=1708

If I'm not mistaken, some Verizon devices will not work on US gsm networks even if unlocked, only foreign gsm networks.
Saw an article about this, although it might have been a different phone that was being discussed.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Well rhank you everyone for dealing with my stupidity... I here on give up on this phone and am gonna sell/trade it for an ATT GS3...
Sent from my SCH-I535

Synaaron said:
Well rhank you everyone for dealing with my stupidity... I here on give up on this phone and am gonna sell/trade it for an ATT GS3...
Sent from my SCH-I535
Click to expand...
Click to collapse
If you are going to stick with AT&T, that is the way to go if you want to have data. No worries. Stupidity is only if you didn't learn anything. You had ignorance of the situation and now your don't. Do some research on any phone before you buy next time (especially if branded from another carrier). This can save you a lot of headaches as you have just learned. Just remember some basics from this forum. Good luck.

Unlocking a sgn2 on O2 network (uk)

Hi folks.
I'm switching networks from O2 to talktalk (vodafone) and I'm wondering if anyone can direct me to a free method of doing this. I've watched the videos on youtube that allow it to be done by dialing “*#197328640#” on the phone but when I enter the network lock section it says "MENU NOT EXIST"
I'm guessing this is an O2 thing so can anyone help me find a way to get my device unlocked?
ps. Hope I have this in the correct section. I've also tried searching on here but no joy.
Thanks

johnbhoyc said:
Hi folks.
I'm switching networks from O2 to talktalk (vodafone) and I'm wondering if anyone can direct me to a free method of doing this. I've watched the videos on youtube that allow it to be done by dialing “*#197328640#” on the phone but when I enter the network lock section it says "MENU NOT EXIST"
I'm guessing this is an O2 thing so can anyone help me find a way to get my device unlocked?
ps. Hope I have this in the correct section. I've also tried searching on here but no joy.
Thanks
Click to expand...
Click to collapse
GalaxSim worth the couple of bucks.

I think you have to downgrade to a 4.1.1 rom first, unlock your phone then flash a 4.1.2 rom.
Sent from my GT-N7105 using xda premium

As above use Galaxsim and pay £2.something ? What I did
Sent from my GT-N7100 using xda app-developers app

dazza7111 said:
As above use Galaxsim and pay £2.something ? What I did
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
I've tried using galaxsim but I'm getting
"unable to read NV data"
You guys are saying it's worth the money but the app appears to be free. I can't see a paid version only a free version.

It will ask you to buy if you want to use it to unlock.
Sent from my GT-N7100 using Tapatalk 4 Beta

Its lill risk though ...but you can game it ...in that case u need to play with efs partition. ..
I did the same to unlock my friends Rogers. ..can explain you method if willing.
Sent from my GT-N7100 using xda premium

johnbhoyc said:
I've tried using galaxsim but I'm getting
"unable to read NV data"
You guys are saying it's worth the money but the app appears to be free. I can't see a paid version only a free version.
Click to expand...
Click to collapse
I don't know what the dev of galaxsim has done but I get unable to read error too. Grab v1.4.3
http://db.tt/7bmiX3ml
This one works for me. Just don't let it update.
Sent from my GT-N7100 using xda premium

OP you sure you're locked?
Sent from my GT-N7100 using Tapatalk 4 Beta

Thanks for the reply's folks.
I downgraded to 4.1.1 to try using the *#197328640# method but that hasn't worked.
I've tried using the old version kdogguk posted but i'm getting invalid IEMI number now but it's saying my phone is unlocked
my phone is locked tho as it won't take my new talktalk sim.
My phone was stuck on boot screen when I downgraded and I had to root though odin then reset it before it would work so I think I've downgraded to the wrong firmware as it is now branded O2 firmware where as before even tho it was locked to O2 the firmware was neutral (not O2 branded).
I've rooted as I said but it won't install custom roms so I have a problem now. Going to upgrade to 4.1.2 but need to make sure I have the right firmware this time.
I'm having some time of it right now lol

This galaxysim app is now saying my phone is unlocked but it won't take my talktalk (vodafone) sim

Still no luck? My note 2 was on o2 first thing I done was root it, tried that code but didnt work then used galaxsim its free but said it could be done paying £2 something. Then I installed a standard btu rom. Funny thing is not tried diffe sim yet. Just hate locked phones
Where abouts in UK are you?
Sent from my GT-N7100 using xda app-developers app

on my phone it says my device is unlocked but when i try to call any number it says not registered on network, what's the problem?

turn off data. turn off mobile. turn them back on. reboot.

Galaxsim was saying my phone is unlocked but it wouldn't take my talktalk sim. I ended up paying £9 to get it unlocked on ebay. Working fine now.

Strange because my phone is O2 but I've been running it with a 3 sim from day one.
They should be unlocked by default.
Sent from my GT-N7100 using Tapatalk 4 Beta

[Q] s3 downgrade help needed

I recently acquired a t-mobile galaxy S3 (t999l)running stock 4.1.2, however my current provider is metropcs and in order to use it i have to unlock it. I currently dont have the money to pay for that so i want to downgrade it to 4.1.1 to do it for free. I was wondering how i could go about downgrading step by step. I would also like to have it rooted.

There is no 4.1.1 for t-999l.. And you don't need to unlock T-Mobile phones to use them with metroPCS.. I know because I've worked for metroPCS.. In other words, you're good to go!!
Sent from my SGH-T999 using Tapatalk

4.1.2 is all we have
Sent from my SGH-T999L using xda app-developers app

serio22 said:
There is no 4.1.1 for t-999l.. And you don't need to unlock T-Mobile phones to use them with metroPCS.. I know because I've worked for metroPCS.. In other words, you're good to go!!
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
I tried putting my already activated metropcs sim card in and it asked for sim unlock code. Is there anything I can do to resolve that.

IamthePesident said:
I tried putting my already activated metropcs sim card in and it asked for sim unlock code. Is there anything I can do to resolve that.
Click to expand...
Click to collapse
What phone did you have before? Was it cdma or gsm? It shouldn't ask for one.. also is your area using cdma or gsm network?
Sent from my HTCSensation using Tapatalk

S3 no reception?

My friend got a phone from T-Mobile s3 few weeks ago and unlocked it to use it here in Canada in mobilicity network. But it has like 0 reception it gets reception for few mins than goes to 0 bars. Is it a radio issue or something else? Any help would be greatly Appreciated. Thanks!
Sent from my SGH-I317 using xda app-developers app

Are you sure the unlock was successful? Im not sure how it works in Canada but could it be blacklisted?
While it shows signal does it work for calls and data?
Sent from my SGH-T999 using Tapatalk

Yes unlock was successful and recognize the network. Gets reception you can make call after few mins loses it and goes to 0 it's not blacklisted as it was purchased outright from the retail store. Right now there is no Sim card on phone and it shows 4 bars.
and for some reason this is the newest s3 i think cause usually its t999v this one say t999l
DocHoliday77 said:
Are you sure the unlock was successful? Im not sure how it works in Canada but could it be blacklisted?
While it shows signal does it work for calls and data?
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Sent from my SGH-I317 using xda app-developers app

Yes unlock was successful and recognize the network. Gets reception you can make call after few mins loses it and goes to 0 it's not blacklisted as it was purchased outright from the retail store. Right now there is no Sim card on phone and it shows 4 bars.
DocHoliday77 said:
Are you sure the unlock was successful? Im not sure how it works in Canada but could it be blacklisted?
While it shows signal does it work for calls and data?
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Sent from my SGH-I317 using xda app-developers app

You might need a new sim card. And the T999V is only sold by the Canadian carriers. The T999L is the updated lte model of the original T999.
After unlocking were you able to use a sim from another carrier and have it work with zero issues? If you only tested it on the network you are reporting problems with that is not confirmation of a successful unlock. Try a sim from another carrier and see if it works.
If it is unlocked then it sounds like an old sim card type issue.
Sent from my SGH-T999 using Tapatalk

*please ignore*

DocHoliday77 said:
You might need a new sim card. And the T999V is only sold by the Canadian carriers. The T999L is the updated lte model of the original T999.
After unlocking were you able to use a sim from another carrier and have it work with zero issues? If you only tested it on the network you are reporting problems with that is not confirmation of a successful unlock. Try a sim from another carrier and see if it works.
If it is unlocked then it sounds like an old sim card type issue.
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
just tried my sim card same issue and we tried with 2 other brand new sim card from ssame provider. i just flashed this March 2014 - 4.3 JellyBean - New!
Note: This is based off of the stock image TMO T999LUVUBNC1
Download :: Download - root66_TMO-L_T999LUVUBNC1.7z through odin thought it might be radio issue but same thing.
her daughter has the same s3 with 4.1.2 and works perfect. can i downgrade through odin to 4.1.2? i think md5 modem might be better.

Unfortunately no. Once you flash 4.3 there is no going back. If its not working with any of the sim cards, try one from another carrier if possible.
Kinda sounds to me like its not unlocked. How did you go about attempting to get it unlocked?
Sent from my SGH-T999 using Tapatalk

She will come to pick the phone today I'll ask how did she unlock the phone. But if it wasnt unlocked how does it recognize the Sim? Can you suggest me a modem? But I will ask how she unlock it and let you know. Also when I flash the new 4.3 it didn't erase the call history and also when I reset the phone it doesn't seem like it resets it cause the call history's are still there.
DocHoliday77 said:
Unfortunately no. Once you flash 4.3 there is no going back. If its not working with any of the sim cards, try one from another carrier if possible.
Kinda sounds to me like its not unlocked. How did you go about attempting to get it unlocked?
Sent from my SGH-T999 using Tapatalk
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Click to collapse
Sent from my SGH-I317 using xda app-developers app

sofia-captivate said:
She will come to pick the phone today I'll ask how did she unlock the phone. But if it wasnt unlocked how does it recognize the Sim? Can you suggest me a modem? But I will ask how she unlock it and let you know. Also when I flash the new 4.3 it didn't erase the call history and also when I reset the phone it doesn't seem like it resets it cause the call history's are still there.
Sent from my SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
You can only use the 4.3 modems now. When you flash firmware it doesnt erase your data. Not sure why it didnt on a factory reset though, unless its stored on sd.
Sent from my SGH-T999 using Tapatalk