Database Develop

[Q]Optimus 2X on AT&T UMTS 1900

I was wondering if anyone has tried popping in an AT&T SIM in an Optimus 2X to see if UMTS 1900 MHz works. I know it's been done on Anandtech on a P990 model... but it would nice to be sure that Anand and friends didn't get some special LG surprise model.
I'd link you guys to the Anand article but I'm new here and XDA doesn't want me to post any links until 8 posts. =(

It works. I use it on at&t's 3g.
Sent from my Xoom using XDA App

I did a research in LG websites,
The only countries that mention that the P990 have the UMTS 1900 band are:
-Poland
-Slovakia
-Spain
-Holland
-Czech Republic
-Belgium
-Australia
-Hong Kong
-Taiwan
Other countries LG websites does not mention the 1900 band, all mention 900/2100. And some like the UK shows the 1700 Band too.
Notice that all sites show the Device as Model: LG P990.
So now the question is does the LG P990 have the UMTS bands 900/1700/1900/2100? since all are the same model number, or is possible that all have different UMTS bands chips?

Agh double post

clubtech said:
It works. I use it on at&t's 3g.
Sent from my Xoom using XDA App
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Where did you get your phone from?

vitaminxero said:
Where did you get your phone from?
Click to expand...
Click to collapse
Got from an eBay seller in Singapore.
The box on the phone states 900/1900/2100 UMTS so i am not sure why some LG local websites only state 900/2100. i am pretty sure they are all the same model.
If you want to the info on the eBay seller, PM me as i don't want people to think i am spamming

When the G2x is a hopeless case for me and retailers for the O2X cannot guarantee UMTS 1900 MHz support, I'll contact you on that seller. Thanks for the offer!

Thanks clubtech for the info. Do you know if AT&T detect it as a smartphone since I am on their $15 media net plan with my current phone?
Can you pm me the seller as well? thx

Is the phone unlocked? If I grab one from TMobile will it work?

mikeruoc said:
Is the phone unlocked? If I grab one from TMobile will it work?
Click to expand...
Click to collapse
It is unlocked. It is not the same as the TMobile G2x (In terms of hardware, the cell modem & GPS are different.)

clubtech said:
Got from an eBay seller in Singapore.
The box on the phone states 900/1900/2100 UMTS so i am not sure why some LG local websites only state 900/2100. i am pretty sure they are all the same model.
If you want to the info on the eBay seller, PM me as i don't want people to think i am spamming
Click to expand...
Click to collapse
Hi, I PMed you asking about the eBay seller. Thanks!

O2X P990h (850mhz UMTS)

Hi guys,
I've searched the O2X forum regarding 850mhz UMTS (HSPA) and found nothing so far. Does anyone here have the O2X P990h model which supports the 850mhz UMTS band? The only thing I can find is that the G2X supports 850 but has the model number P999.
I'm currently tossing up between the Atrix and O2X (I use the Australian NextG network btw). The locked bootloader on the Atrix sucks and coming from a S-Off'ed Desire I really want custom roms etc., but the O2X doesn't have 850mhz support which is a must for me, at least until now.
Since then I've stumbled onto these:
http://www.mobicity.com.au/lg-optimus-2x-nextg.html
They appear to be in a lot of other online shops as well, has anyone actually got one and can confirm normal O2X mods/roms work on the P990H?

Hi, i get 'h' on mine above the signal bars which i am guessing is hspa. (I'm in the UK on orange.) Or am I getting confused with something different?
Sorry if i am talking about something different.
Sent from my LG-P990 using XDA App

This is on czech LG site for O2X:
2G network: GSM 850/900/1800/1900 MHz
3G network: UMTS 900/1900/2100, HSDPA 7,2Mbps / HSUPA 5,7 Mbps
so i guess 850Mhz for UMTS is really not supported, at least not on EU model (but i doubt the specs will be different elsewhere on P990)

Actually he's talking about one listed as "LG P990H Optimus 2x 850/1900 "
It's on negrielectronics web site as well as a few others... but it seems impossible to find out any information on it. I myself am also interested..

Fulwood Sedge said:
Hi, i get 'h' on mine above the signal bars which i am guessing is hspa. (I'm in the UK on orange.) Or am I getting confused with something different?
Sorry if i am talking about something different.
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
No, completely different. The standard Optimus model number is P990. There is a 2nd model called the P990H which has 850mhz UMTS support (apparently at least).
So nobody has ever bought or used one of these phones?

where do you see a 850 umts version ?

Fido's LG P990hn is an 3g 850/1900/2100 phone. I'm curious that is it able to flash a p990's third party rom or not.

alexander宇 said:
Fido's LG P990hn is an 3g 850/1900/2100 phone. I'm curious that is it able to flash a p990's third party rom or not.
Click to expand...
Click to collapse
Don't take this as a definitive answer, but yes, it should be.
As you can see from the included screenshot, the ROM itself (via Hidden menu) lets you select 850 bands for both GSM and WCDMA, even though the radio doesn't support WCDMA-850 on the regular P990, which the screenshot is from. (This is from the new official Gingerbread, but it was the same on Froyo.)
You may run into other problems of course, like the ROM not liking your baseband, which is the one thing you probably shouldn't replace with stuff from the P990.
As stated, I cannot say for sure, but I think you can try without damaging your phone. (Or get someone else to try it on theirs ;-)) Which is my way of saying you probably should get a second opinion. And a third.

Cant you just get a G2X? Theyre 850 i think. Or you could join the dark side and use optus
Sent from my LG-P990 using Tapatalk

Just saw this thread and wanted to clarify for anyone else who might stumble upon it.
P990HN from Fido does support 850Mhz and also works with all the custom roms/kernels for P990

I'm brazilian.
In Brazil, UMTS is 850/2100mhz
(990h model)

here in mexico 850 its the 3g band, the 8xxx baseband + canadian ril makes the phone p990h, but the radio its not capable on p990 celphone, you can just load miui or cm7 and load the 8xxx baseband and the canadian ril then you can upgrade your phone

I have the LG Optumus 2x - P990.
This phone has a software lock on the UMTS 850Mhz Band.
Does anyone know how to root this phone and unlock it?
My phone will sometimes connect to 3G here in Canada, but then it reverts back to Edge Network. If I turn my phone Off/ON, it will usually connect to 3G then after a few mintues goes to Edge. Certian parts of the city I'm in will connect to 3G at all times, it's very strange.

I did not know (and still confused) about what I was doing when I flashed my Fido LG P990hN with T-mobile CyanogenMod7. I can operate on Rogers network, but its not stable. Im new to this so I don't know what questions to ask - I just keep reading forums and help files. Michael
Sent from my X10i using XDA App

I have the P990h model bring from Spain, and in the box says that works with 850/1900/2100 WCDMA, and all the roms from P990 works normally, right now im on CM7

Dwntwn said:
I did not know (and still confused) about what I was doing when I flashed my Fido LG P990hN with T-mobile CyanogenMod7. I can operate on Rogers network, but its not stable. Im new to this so I don't know what questions to ask - I just keep reading forums and help files. Michael
Sent from my X10i using XDA App
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Click to collapse
ok guys, here what I found.
I started separate thread in Q&A section:
http://forum.xda-developers.com/showthread.php?t=1521105
I'm in Ontario, Canada on Rogers. Got LG o2x from buddy who bought it in Europe. Then my mystery started. At home I was getting 3G and H, but at work (about 50km away) was getting only EDGE. But buddy with iPhone had 3G all the time. I got suspicios. Tried everything - flashing different ROMs, RILs, BBs... Same sh...it.
Then, my another buddy bought used LG 3D (Thrill) which was sold by Rogers (i.e. official Canadian edition) and asked me to root it. I did and tested - he had 4G (same as H, I guess) all the time. WTF!!!
So quest continues...
I found hidden menu in both phones. There I could force phone to use exact band I wanted. And mystery was solved...
So I forced:
GSM850 - my o2x got Edge; buddies: 3D Edge (the same)
GSM1900 (GSM PCS on phone) - my o2x: G; buddies: G
WCDMA1900 (UMTS_Band_II) - my o2x: H; buddies: 4G
and now...
WCDMA850 (UMTS_Band_V) - my o2x: NOTHING; buddies: 4G
So I made the conclusion that European o2x has WCDMA850 band disabled somehow. It explaines why I have H at home (big city where H is on WCDMA1900) and only Edge at work (small town and H is on WCDMA850).
Now I'm trying to find out if it's possible to unlock/enable WCDMA850 band on this phone. I read that Samsung has hidden menu where you can select bands you want to use.
Does somebody have and idea if there is something like that in LG?
Thanks!!!

Goldenmeadow said:
Does somebody have and idea if there is something like that in LG?
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Click to collapse
There is, but it won't do you much good, as this is, to my knowledge, a hardware limitation. The P990 can not use the 850Mhz band, the P990h and P990hN can.
If you still want to try you'll find band selection in the hidden menu. Dial 1809#*990#, select Modem Setting/Band selection.

TrymHansen said:
If you still want to try you'll find band selection in the hidden menu. Dial 1809#*990#, select Modem Setting/Band selection.
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That's exactly what I did - went into hidden menu and selected each band one by one and then checked status in Engineering Mode of Modem Settings.
Now I have next idea: all this experiment I did while having "canadian" baseband 823. And i had WCDMA850 line in Band selection (but it didn't work).
Now I'm wondering if I still have WCDMA850 entry if I put "european" baseband 725. This will be my next step tonight. Because if I have WCDMA850 in 725 bb then I would assume that phone CAN handle it but it's disabled somehow.
What do you think?
I just thought that for manufacture like LG is easier to make just one universal phone and then limit available bands using software (or firmware)...
Thanks for ideas!!!

You'll find the (non-functioning) 850 band on European basebands as well.
I'm no electronics engineer, but I think there's more involved in supporting a specific frequency than just the baseband. (I think each frequency needs some kind of dedicated amplifier among other things.) The chip itself is capable of supporting 850 I think, but not the rest of the "supporting" electronics. I may be completely wrong though.
Basically the P990h is the revision which enables the 850 band. I think trying to get it to work on the regular P990 is futile, but you're of course free to try anything you want.

If I remember rightly, in the O2X review by Aandtech, they say that the 850 option is there in software but not there in hardware (on European version). So even though you can select it, it won't work. (At least that's according to the initial review)

[Q] Check 3G frequency/band of Optimus 2x(P990)

Gsmarena shows that there are two versions of P990(not P999 G2X), one with HSDPA 900 / 1900 / 2100 and the other with HSDPA 900 / 1700 / 2100. I have a P990, but the box is missing. I wanted to use the phone on WIND(AWS only) and so wanted to know whether there is anyway of knowing whether the phone supports 1700(AWS) frequency from the phone itself(maybe some dialer code). I know I can do it on my Vibrant by going into the service mode.

There is only one P990, but there is a P990h that supports 850/1900/2100
The only AWS one is the G2X/Wind O2X.

Rusty! said:
There is only one P990, but there is a P990h that supports 850/1900/2100
The only AWS one is the G2X/Wind O2X.
Click to expand...
Click to collapse
I thought the same initially, but was a bit confused after I saw gsmarena showing the phone supporting 1700 3G band.....does anyone have a P990 with AWS frequncy support..

I read this thread while Googling and made an account to ask a question because now I am really confused.
So if I buy the P990 from Asia, will it work on Wind/Mobilicity? GSMArena says it has the 900/1700/2100 bands (LG site says P990 supports Edge 900/1700/2100, but what is EDGE?) but this thread says that only the G2X/Wind O2x P999 supports AWS? Is there a difference?

I reckon the 900/1700/2100 bit on GSM Arena is a balls up, although it's not their fault. LG UK's website actually states that they are the WCDMA frequencies for it, but on the box is 900/1900/2100.
EDGE is the 2G frequencies, which are 850/900/1800/1900 on the box.

Thanks, did more digging and the info I found is 100% in agreement with you.
So pretty much only the T-Mobile and Wind version of G2x/O2x support AWS will work on Wind and Mobilicity.

[Q] Does my P970 have the 1700 Mhz band? Will it work on the 3G T-mobile network?

Hi all,
I've spent the last few hours searching google and this forum, but to no avail. Any help would be appreciated.
I have a LG Optimus Black but don't have the box to know the specifications. I want to buy a T-mobile sim card for my phone, but can't figure out if it will support T-mobile's 1700/2100 3G network. According to GsmArena (and other sites) there is 2 versions of the P970 one with the 1900 Mhz band and one with the 1700 band, I don't know which one my phone is.
How can I know which band my phone supports? I have a model number, IMEI, and S/N. Is there any app or program that would be able to tell me what band my phone supports?
Thanks in advance.

CrushedBananas said:
Hi all,
I've spent the last few hours searching google and this forum, but to no avail. Any help would be appreciated.
I have a LG Optimus Black but don't have the box to know the specifications. I want to buy a T-mobile sim card for my phone, but can't figure out if it will support T-mobile's 1700/2100 3G network. According to GsmArena (and other sites) there is 2 versions of the P970 one with the 1900 Mhz band and one with the 1700 band, I don't know which one my phone is.
How can I know which band my phone supports? I have a model number, IMEI, and S/N. Is there any app or program that would be able to tell me what band my phone supports?
Thanks in advance.
Click to expand...
Click to collapse
Contact your nearest LG service center and ask em you want to talk to their technical not costumer service.
Sent from my LG-P970 using Tapatalk

lesp4ul said:
Contact your nearest LG service center and ask em you want to talk to their technical not costumer service.
Sent from my LG-P970 using Tapatalk
Click to expand...
Click to collapse
Thanks, would that be the only way of knowing?

CrushedBananas said:
Thanks, would that be the only way of knowing?
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Click to collapse
yeah, by providing your IMEI and product code, they will know the specific specification.
I also have US T-mobile HTC Sensation, frequency works very well in my country (900/1800/2100)

lesp4ul said:
yeah, by providing your IMEI and product code, they will know the specific specification.
I also have US T-mobile HTC Sensation, frequency works very well in my country (900/1800/2100)
Click to expand...
Click to collapse
I called up they claimed that since it's a international phone they don't know. Perhaps I'll try calling tomorrow LG in the UK.

CrushedBananas said:
I called up they claimed that since it's a international phone they don't know. Perhaps I'll try calling tomorrow LG in the UK.
Click to expand...
Click to collapse
yeap try LG, also you can email LG.com online support... outrageous if they did not know

lesp4ul said:
yeap try LG, also you can email LG.com online support... outrageous if they did not know
Click to expand...
Click to collapse
I just called LG in the UK they also claim they don't know. This is getting kind of annoying. I want to know if I can buy a T-mobile sim card.

I have the LG P970 and with my t-mobile USA Sim, 3G does not work. It only uses the GSM Edge signal. It works fine with AT&T 3G.

raharsha said:
I have the LG P970 and with my t-mobile USA Sim, 3G does not work. It only uses the GSM Edge signal. It works fine with AT&T 3G.
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Click to collapse
So you have the 1900 Mhz version of the P970, since At&t's UMTS network uses 850/1900.

Humm just bring your phone to T-mobile booth or branch and test it

CrushedBananas said:
Hi all,
I've spent the last few hours searching google and this forum, but to no avail. Any help would be appreciated.
I have a LG Optimus Black but don't have the box to know the specifications. I want to buy a T-mobile sim card for my phone, but can't figure out if it will support T-mobile's 1700/2100 3G network. According to GsmArena (and other sites) there is 2 versions of the P970 one with the 1900 Mhz band and one with the 1700 band, I don't know which one my phone is.
How can I know which band my phone supports? I have a model number, IMEI, and S/N. Is there any app or program that would be able to tell me what band my phone supports?
Thanks in advance.
Click to expand...
Click to collapse
T-Mobile USA's 3G/4G(UMTS/HSPA+) AWS REQUIRES 1700mhz + 2100mhz combined. If your phone has only 1700mhz, it won't work (and no, it won't work "1/2"). You'll just get defaulted to EDGE speeds (which practically all GSM phones support)

the
P970 has HSDPA 900 / 1700 / 2100
and the P970H has HSDPA 900 / 1900 / 2100
so i think the original version would work...
Came back from the U.S and AT&T 3G works fine.

Will the Lg optimus990 work on att 3g and T-Mobile 3g?

I Wanted to know if lg optimus 2 x will work on at&t 3g and t mobile 3g .....someone selling 1 for 225 is that a good price?
Sent from my Galaxy Nexus using xda premium

I know it might be late, but from GSMArena:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1900 / 2100
HSDPA 900 / 1700 / 2100

as I posted in another thread...I was only able to get 2G(Edge) on my o2x when I used the phone on T-MOBILE in the US

mad_catmk2 said:
as I posted in another thread...I was only able to get 2G(Edge) on my o2x when I used the phone on T-MOBILE in the US
Click to expand...
Click to collapse
Well, it depends on the type of o2x you have.
I have an SU660, which unlike what's written in the GSM Arena, does not have 1700 band. So, I learned the hard way and found out a little too late (which I also noted about this in another post) that mine cannot use 3G on T-mobile USA.
OP's O2X is P990, which should work on AT&T. See here:
http://forum.cyanogenmod.com/topic/37457-p999-vs-p990/

aragorn7 said:
Well, it depends on the type of o2x you have.
I have an SU660, which unlike what's written in the GSM Arena, does not have 1700 band. So, I learned the hard way and found out a little too late (which I also noted about this in another post) that mine cannot use 3G on T-mobile USA.
OP's O2X is P990, which should work on AT&T. See here:
http://forum.cyanogenmod.com/topic/37457-p999-vs-p990/
Click to expand...
Click to collapse
Of course that's why I said 'on tmobile' in my post
And yeah it should work on AT&T