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Cant get 3G to work?

hey guys
been trying to get 3G to work, but everytime i go into the bank selection, and pressing on the 850mhz band, it says "menu not exsist" so i cannot enable 3G
anyone know wtf is going on here and how i can make 3G work?
thanks
EDIT: it worked fine up until i flashed 2.3.3, then flashed back to darky now i cant

Is the phone actually the 850 or 900mhz version?
If it's the 850 then check to see if you have a compatible modem. May just need to flash one to fix it.
Also check if your apn settings are correct just in case.
http://ausdroid.net/apns/
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sxi200 said:
Is the phone actually the 850 or 900mhz version?
If it's the 850 then check to see if you have a compatible modem. May just need to flash one to fix it.
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Click to collapse
Its a 850 version, been using it for ages but it stuffed up when i flashed to 2.3.3 then back to darky
tried flashing JG4 and JL2 which are 850 modems but still not working
and yep, they are right

Check your apn settings. You may have list them during the flash 2.3.3 flash process. I've added a link in my first post just in case you need it.
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sxi200 said:
Check your apn settings. You may have list them during the flash 2.3.3 flash process. I've added a link in my first post just in case you need it.
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Click to expand...
Click to collapse
I checked and they are right
This really sucks, I just got it back from warranty about 2 weeks ago

Oh ok. Well that's got be stumped as well if apn details are correct.
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sxi200 said:
Oh ok. Well that's got be stumped as well if apn details are correct.
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Click to collapse
that makes 2 of us then haha!
i got no idea what happen

These are some of the things I would try in your situation:
-Restore cwm backup of rom that had working 3g (I assume you would have done that already if you had one).
-restore to factory settings.
-flash a fresh / compatible stock rom just to see if it comes back. Then re-flash darkys.
I doubt there is a problem with the phone itself. Just some software mismatch somewhere.
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sxi200 said:
These are some of the things I would try in your situation:
-Restore cwm backup of rom that had working 3g (I assume you would have done that already if you had one).
-restore to factory settings.
-flash a fresh / compatible stock rom just to see if it comes back. Then re-flash darkys.
I doubt there is a problem with the phone itself. Just some software mismatch somewhere.
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Click to collapse
Ok
I just flashed the stock telstra ROM back onto the phone, and still getting 2g, and 3g is there but not going to work...
my other phone is working on 3g fine though so its not telstra
( talking about NextG here to, same thing really )
EDIT: now it says its running on the 850 band under band selection, its the only one ticked. but its still E which is 2g
under service mode, its running GSM900, ****ty 2G
would it be because my phone only has 10% battery?

Well I hope for your sake low battery is the problem.
Hey, I thought I was the only one who flashes roms with such low battery. Guess not!
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sxi200 said:
Well I hope for your sake low battery is the problem.
Hey, I thought I was the only one who flashes roms with such low battery. Guess not!
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Click to collapse
i dont think your supposed to flash roms with low battery but lol

Got another idea. Since you have 'E' showing then you must have correct apn details.
So now go to mobile network settings and select only wcdma in network mode. That is 3g only. Take it off auto.
Could just be that 3g there but its defaulting to 2g due to low reception.
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aussiesausage said:
i dont think your supposed to flash roms with low battery but lol
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Click to collapse
So they say but I've lost count of how many times I've done so at 10% or less. Never had a problem.
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sxi200 said:
Got another idea. Since you have 'E' showing then you must have correct apn details.
So now go to mobile network settings and select only wcdma in network mode. That is 3g only. Take it off auto.
Could just be that 3g there but its defaulting to 2g due to low reception.
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Click to expand...
Click to collapse
if i do that, i dont get anything. just a circle with where reception bar is, and no service
im off to bed, will check back in the morning see if anyone has any solutions for me to try

Good luck!
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sxi200 said:
Good luck!
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Click to collapse
stupid thing says "menu not exsist" when i go into the band selection

Also
There was this walkthrough thing I saw on here ages ago, about changing the product code the manual way, But can't find it.
It had something to do with using adb to copy over something in the efs folder, can't remember
Do you know what I'm talking about?
Is it possible that when they replaced the PCB in my phone, they did not put a 850 enabled version in there? Cause nothing I do is working.....

Yep, I know what you are talking about but I use another method.
In dialler type *#272*imei# with imei being your imei number of course.
It will show you the available product codes. Just remember that once you change it the phone will automatically reboot and do a factory reset.
Not sure however if this will help with your problem.
Was 3g working after you got it back from warranty?
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sxi200 said:
Yep, I know what you are talking about but I use another method.
In dialler type *#272*imei# with imei being your imei number of course.
It will show you the available product codes. Just remember that once you change it the phone will automatically reboot and do a factory reset.
Not sure however if this will help with your problem.
Was 3g working after you got it back from warranty?
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Click to collapse
Yeah I tried that way but it did not work.
And I'm 99% sure it was.
They replaced it with a regular one, I put my Optus sim in there, and 3G works. So they replaced it with a Regular 900MHz version, not a NextG version
You have got to be ****ing joking....

Oohh! That hurts man! I'd be pretty pissed too. If it shows as 900 then they fu**ed up.
I'd be going to see them Asap. Problem is you'll be without a phone again until fixed.
Give them an ear-full man.
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xxjvo roaming problem

recently updated my i9000 to the jvo of gingerbread, now when I roam sometimes it has problems getting a signal, in major cities it is fine but on a highway it loses it sometimes and says emergency calls only,.or shows three/four bars but won't send anything,
I'm on Virgin Mobile in Canada,
an example us when I went to sarnia once I couldn't get a signal to save my life, I'm from cambridge.
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You could try flashing a new modem through Odin. Some work better than others. If you do a quick search of the forum you'll find loads of info.
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okay, thanks
is there any which will not result in me having to reinstall all my apps?
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Does rom region matter?

My Optimus Black cames with v20j (Canada) and I understand that there's differences between regions like apps. But other than that, is there any real difference? I've used Spain's, Germany's, Europe's and the Philippines' roms and they all run the same.
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From my own experience with canadian carrier "telus or koodo".
Some of the roms seem to not get a good connection to the network,
I went as far a sending my phone for repair, rerooted my device and reflashed but kept getting cant connect to network at this time. I do beleive some one else on telus had the same issue. Can' t recal his name
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Huh, I'm on Koodo and I've had no trouble with signal on any rom. I did find that some roms don't say I'm on Koodo, but Telus. But, Koodo is part of Telus so it makes sense.
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Telus
I'm with Telus and since I changed my original rom from a custom one I can't get phone signal outside of town.
It's because we have the lg p970g not lg p970. We have different phone signal for our roms this is why our phone are having signal issues.
I didn't find a way to correct this problem. But is there a flashable zip for a canadian rom becaus my usb port is broken and i can only charge my cellphone and change my rom with a flashable zip file.
hope we'll find a solution someday :S

Yes for xample you cant find persian language in v20n or j but v20b have persian
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And Singtel
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claude906 said:
From my own experience with canadian carrier "telus or koodo".
Some of the roms seem to not get a good connection to the network,
I went as far a sending my phone for repair, rerooted my device and reflashed but kept getting cant connect to network at this time. I do beleive some one else on telus had the same issue. Can' t recal his name
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Click to collapse
i had issues when outside of town. i recently tried the n version of Zeus on the same trip and signal seemed to be better, specifically in a spot where I had no signal before. still not as strong as stock though. running telus.
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stellar_d said:
i had issues when outside of town. i recently tried the n version of Zeus on the same trip and signal seemed to be better, specifically in a spot where I had no signal before. still not as strong as stock though. running telus.
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Click to collapse
This is exactly the same as me. Mine isnt horrible now but I ocasionally loose signal
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wondering if any of you guys had problems with the gps on the new telus or koodo releases? i haven't tried them without doing the root procedure but when bare bones rooted GPS didn't work
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Sim unlock

Hey all I was just woundering if there is a free way to sim unlock my phone yes I know its cheap to buy on eBay but for me it is the principle. I found that if I stick my similar in I can use the phone by refreshing the service under the mobile network menus but I can't seem to save my apn for 3g internet or any network for that matter.
Your help would be greatly appreciated everyone ..
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Why are u asking in LG 2X's thread? Ask in general.
You can by turbosim and use it with yiur locked simcard.
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Because the phone in question is a lg p990 .... the Samsung galaxy s series has a sum unlock app so I was seeing if anyone could provide more phone specific information.
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chrisdeger said:
Because the phone in question is a lg p990 .... the Samsung galaxy s series has a sum unlock app so I was seeing if anyone could provide more phone specific information.
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From my experience, some Android phones can be SIM unlocked entire by a software hack, and others can't.
It depends on the hardware and the ability to exploit the power cycle and other jargon I'm not familiar with.
I know for sure I was able to unlock a Galaxy S2 and a HTC Desire Z without paying for a code, but for the LG Optimus 2X P990 I had absolutely no such luck and had to buy a code. Same with a Motorola Backflip.

I am able to txt and make phone calls does that but not 3g or data is that normal for a locked phone or am I just doing something incorrect to set up apn
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chrisdeger said:
I am able to txt and make phone calls does that but not 3g or data is that normal for a locked phone or am I just doing something incorrect to set up apn
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Click to collapse
If you can text and call but not access data, then yes, you may have an APN or baseband or RIL problem.
Download APN Manager and GetRil.
I had the same problem with my P990 after unlocking it and using GetRIL to match the baseband properly solved my problem.

OK you are correct my baseband and rihl don't match what should I do from this point
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question about roms

I have a Tab 7 (gt-p1000r , rogers 3g) that I cannot for the life of find a stock firmware to go back to, so I am wondering if anyone can tell me is there any roms that I can use that won't brick my device? (I am rooted and superuser is on)
I don't even care if I loose 3g functionality, as this is just a luxury, I only use at home

A at&t rom might work. Both are on the gsm network. I think you can rake a at&t phone into canada and it will work. This might work. Just look into it. The model for a at&t is sgh-i987.
Happy hunting.
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Deep Nox said:
A at&t rom might work. Both are on the gsm network. I think you can rake a at&t phone into canada and it will work. This might work. Just look into it. The model for a at&t is sgh-i987.
Happy hunting.
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Thank you kindly, I will look into it, as mentioned I don't even care if I keep the radio portion of it(texting via sim, I have a nexus 4 so I am ok)

The CM 10 version has full functionality, i've heard. CM 11 still has a few bugs, no mobile data. I'm not sure about kang roms, AOKP, they are similar to CM.
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