The hardware is not the same. Different baseband chips are being used to obtain the different 3G frequencies and speeds.
G2X - Uses the Qualcomm MDM6200 one chip solution for digital baseband, analog baseband and RF. This is the same baseband chip used in the Moto Atrix.
O2X - Uses the Infineon PMB9801/PMB5703 one chip solution for digital baseband, analog baseband and RF.
The major difference is that the G2X baseband has 14.4Mbps capabilities so T-Mobile can pretend they have 4G, while the O2X baseband has an upper download speed of 7.2Mbps.
I suppose LG had to swap in a new baseband chip for TMO as they demanded faster than 7.2Mbps speeds. They could have used another model of this chip design that got 24Mbps but I guess TMO didn't really want people having all that speed available as as users get higher download speeds, they tend to use more data because they can do things faster.
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As people have pointed out before, you can only get 2G on AT&T with the G2X. What I haven't been able to find, is this a hardware deficiency or software-locked out in the baseband or elsewhere in the ROM?
from what i've read before this was a software issue with the baseband. The phone is touted by LG and in its specs that its a quad band GSM phone that supports all the 3G bands.
as always I could be wrong though- it would be interesting to see if the new baseband that was included in the LG leak is compatibile with ATT 3G bands or not.
i was able to update my g2x to the new baseband along w/ CM7 nightly 89 and I could still only get AT&T 2G, NOT 3G. =[
found this article again, so the answer is definately not: http://www.engadget.com/2011/04/27/t-mobile-g2x-lacks-quadband-hspa-shatters-dreams/
Is there any practical difference between the two or are they just rebranded versions of each other?
I'm sitting with my LG Thrill 4G right now and am looking to get some sort of root happening so I can manage this battery life..
pretty sure it's just branding but don't quote me on that.
All tech sites list them as the same so don't think there is any real difference.
If they are identical does that mean that the Optimus has a 4G radio?
fazzy360 said:
If they are identical does that mean that the Optimus has a 4G radio?
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AFAIK neither the O3D or the Thrill has true 4G radio, as I understand it it's just that some updated 3G stuff are OK to call 4G because of the upgrade even though it's not really 4G.
As I remember AT&T and some other network had a case before the review board that decides what is what because their ads said 4G but it's really not, but because of the speed upgrade they where doing etc it was decided that it could be called 4G.
I might be totally wrong and the Thrill 4G really has a 4G radio but I don't think so, I think most of the 4G phones are actually 3GPP LTE.
LG.com on Thrill said:
Frequency
Quad-band GSM/GPRS/EDGE; 850/900/1800/1900 MHz; Tri-band UMTS/HSPA+; 850/1900/2100 MHz
DataTransmission
HSDPA 14.4 Mbps, HSUPA 5.7 Mbps
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Looks just like the O3D so unless the Thrill 4G for AT&T is a one of a kind AT&T specific phone that no other carrier can have then the 4G is marketing and nothing else.
CASE AND POINT
http://www.motherboard.tv/2011/1/7/...etwork-proves-4g-doesn-t-really-mean-anything
Will a g2x.fully work on at &t?
Sent from my inspirationally desired HTC phone
Nope.
Sent from my LG-P999 using faux's sexy kernel
It will work, but you won't get 3G... Only EDGE.
What is the status of this? If I remember correctly the G2x specs initially listed full compatibly with ATT's data networks, but attempts to make it work were fruitless.
Is there a chance (no matter how slim) that an updated baseband could enable ATT 3g data, or does the hardware truly not support it?
The hardware does not support it. T-Mobile said it was a mistake in the promotional materials but with so many shady things about the way the G2x has been handled, I wonder if it was done on purpose. Part of the reason why I went G2x was because it was AT&T compatible. I wouldn't have had to get a new phone should the merger get approved.
Memnoch30 said:
The hardware does not support it. T-Mobile said it was a mistake in the promotional materials but with so many shady things about the way the G2x has been handled, I wonder if it was done on purpose. Part of the reason why I went G2x was because it was AT&T compatible. I wouldn't have had to get a new phone should the merger get approved.
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Same reason I chose this phone.
Sent from my LG-P999 using XDA Premium App
It seems to be an issue with the baseband chip. The 2X uses an Infineon baseband chip and it could have supported 850, 1700 and 2100 (tri-band 3G can be configured for any three bands - optional five band 3G version is available) but the top data speed is 7.2Mbps. On the G2X LG switched to a Qualcomm baseband chip that supports 1700 and 2100 but has a top data speed of 14.4Mbps (also supports quad-band 3G on 850, 900, 1900, 2100 but the AWS version needed for T-Mobile band support is only dual-band). Maybe initially they were going to use the 2X chip but T-Mobile said give us faster data so we can lie to our customers and call it 4G.
For geeks who want to know the 2X uses an Infineon X-GOLD 616 PMB9801 and the G2X uses the Qualcomm MDM6200 baseband chip.
Using mine on at&t...I don't pay for their outrageous data plan so I can't comment say if 3g works or not (I don't see any 3g notification on the phone), but it does work other wise. Who needs a data plan when you have wifi every where you go? I use a wifi app for texting so I'm not sure if the messaging/picture messaging works, but if someone really wants to know I will try a friends sim card....
You gotta be kiddying me man. Seriously you wanna put this phone on ATT and have all those limitations? Go with tmobile. Awesome service!
jboxer said:
It seems to be an issue with the baseband chip. The 2X uses an Infineon baseband chip and it could have supported 850, 1700 and 2100 (tri-band 3G can be configured for any three bands - optional five band 3G version is available) but the top data speed is 7.2Mbps. On the G2X LG switched to a Qualcomm baseband chip that supports 1700 and 2100 but has a top data speed of 14.4Mbps (also supports quad-band 3G on 850, 900, 1900, 2100 but the AWS version needed for T-Mobile band support is only dual-band). Maybe initially they were going to use the 2X chip but T-Mobile said give us faster data so we can lie to our customers and call it 4G.
For geeks who want to know the 2X uses an Infineon X-GOLD 616 PMB9801 and the G2X uses the Qualcomm MDM6200 baseband chip.
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Jboxer you're always full of great spot on data. Is it your job that relates to phones or just a hobby?
Mister Hat said:
Jboxer you're always full of great spot on data. Is it your job that relates to phones or just a hobby?
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Just a geek.
Sent from my LG-P999 using Tapatalk
Lol! Nothing wrong with that. Just find a girl that thinks its awesome
jboxer said:
Just a geek.
Sent from my LG-P999 using Tapatalk
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Sent from my LG-P999 using XDA App
jboxer said:
Just a geek.
Sent from my LG-P999 using Tapatalk
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Respect.
10 chars
Guess we'll have to wait and see. They are buying all the equipment as well, so I don't see why it wouldn't work once everything is said and done.
broncosman said:
Guess we'll have to wait and see. They are buying all the equipment as well, so I don't see why it wouldn't work once everything is said and done.
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AT&T is buying T-mo spectrum to kill it and use it for LTE. They're keeping their 850/1900 for 2g/3g. The G2x won't work on their network for 3g, neither will 99% of the other T-mobile phones. They won't keep running the 1700/2100 T-mo 3g frequencies for any decent amount of time. Its in their best interest to have all customers running on one set of frequencies.
Im planning to buy either one of this phone but something is confusing me about the 3G. I dont have a 4g plan only 3g. Will there be a difference in speed if i use 3g for both phone?
I copied this from gsm arena. This confuses me???
G2x HSDPA, 21 Mbps; HSUPA
Optimus 2x HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
G2X is for USA T-Mobile bands 4g/3g, edge as well. The optimus 2X is for European bands on DT
Sent from my LG-P999 using XDA Premium App
It depends on where you are going to be using the phone. The 2X (P990) baseband chip is slower than the G2X's (P999) baseband chip. Having said that you need to buy the phone based on where you plan to use it. The P999 only works on 1700 and 2100Mhz 3/4G networks. The P990 works on 900, 1900 and 2100Mhz 3G networks. Be careful as there are some P999s marketed as 2X, such as in Canada by Wind Mobile. G2X is a proprietary T-Mobile name and only they can use it. So you should think in terms of P990 and P999, not 2X and G2X.
I was reading somewhere that tmobile's 4g is the same speed as wind's 3g
Sent from my LG-P999 using Tapatalk
calcio4life said:
I was reading somewhere that tmobile's 4g is the same speed as wind's 3g
Sent from my LG-P999 using Tapatalk
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T-Mobile doesn't have true 4G. They have HSDPA+ which can get speeds up to 42Mbps but you never see these speeds in real life. The modem in the P999 (G2X) has a max download capability of 21Mbps. There is no definition of 4G so carriers like T-Mobile can call anything they want as 4G as a marketing ploy. Here in Thailand we have 42Mpbs speeds now but nobody has the balls to call it 4G. For example, TOT3G calls it 3.9G. So yes, it is very possible that T-Mobile's 4G is the same as Wind's 3G if Wind is running HSDPA+, which most carriers have deployed by now.
jboxer said:
It depends on where you are going to be using the phone. The 2X (P990) baseband chip is slower than the G2X's (P999) baseband chip. Having said that you need to buy the phone based on where you plan to use it. The P999 only works on 1700 and 2100Mhz 3/4G networks. The P990 works on 900, 1900 and 2100Mhz 3G networks.
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I'm in the USA. What coverage can I get with my G2X (P999) in Europe?
And does the suffix make a difference? Mine comes up as an LG-P999bn.
EEngineer said:
I'm in the USA. What coverage can I get with my G2X (P999) in Europe?
And does the suffix make a difference? Mine comes up as an LG-P999bn.
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Almost all of Europe uses 2100Mhz so you are better off with a P999 (G2X) because it has a faster 3G radio (21Mbps) as compared to a P990 (7.2Mbps). Both phones will work in Europe on almost all (if not all) 3G systems.
"BN" is a new one. Haven't heard of that one before. Most of the suffixes don't mean much. They designate hardware revisions or refurb units. Other known suffixes are DW, DWU, DWDP and WA. You sure it is "BN?" The LG Updater doesn't show that suffix as supported as of yet. Probably because yours came with the latest v21e rom so there is nothing for the updater to updater yet on yours.
Hi, professionals!
I have bought a new Galaxy mini 2 (aka Jena, GT-6500D).
It's based on MSM7227A chip.
But it has a big drawback - it looses GSM network when I'm out of the city.
Other phones can use GSM network in those places, where my new one really sucks!
Can I improve signal strength/receiver sensitivity using some kernel hack?
Sometimes upgrading your baseband can help but there are a lot of things that could affect that.