I have an atrix that is unlocked and has a T-mobile sim card. But its stuck on Edge and never been on 4g let alone even 3g. Is there a custom rom and/or kernel that can fix this issue?
The atrix isn't 4G capable (lacks the hardware) and T-mobile uses a different frequency for their 3G networks that the Atrix doesn't support.
So yeah you're stuck on edge as long as you're using T-mobile on the atrix
Seriously?
Blueangel180 said:
The atrix isn't 4G capable (lacks the hardware) and T-mobile uses a different frequency for their 3G networks that the Atrix doesn't support.
So yeah you're stuck on edge as long as you're using T-mobile on the atrix
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I have been considering the Atrix 4G from AT&T. it is advertised as 4G by ATT. I ready a couple reviews that said it was slow, but I assumed that might be from all the bloatware. I guess I should be looking at a different phone, if the Atrix 4G is really not 4G.
First find the specs of the device. Only devices listed as LTE are real 4G. You can find it in radio frequencies. At&t only has a few but verizon has a plenty to choose, although according to user feedback 4g devices are battery hogs, while on 4g of course.
Sent from my MB860 using XDA App
If you want fast / reliable data speeds you best be looking at a different carrier than AT&T.
Sent from my Motorola Atrix 4G using Tapatalk on AT&T, the company that disappoints me so much that I have to use my tapatalk signature to tell everyone
Well that sucks... I guess I'll be continuing my search. I'm new here but am loving the available information and the responsiveness of the members. Thanks again.
I believe the ATRIX is technically 4g but was wondering if anyone has seen 4g in the status bar ever? Im on AT&T and have seen 3g and h+ but no 4g. I know AT&T calls h+ 4g but it isn't really. I was also told that AT&T hasn't released 4g speeds yet but that was months ago. With the new ipad out that is 4g does that mean 4g speeds are available now and has anyone seen it on the ATRIX using AT&T ?
Sent from my MB860 using Tapatalk
Atrix only supports HSPA+, no LTE
You won't see LTE on the Atrix as the radio isn't capable of LTE. You will only ever see 4G come up on your Atrix if you edit the appropriate system files to show this instead of H+ or 3G. As was said, Atrix is only capable of HSPA which is what AT&T called 4G before they rolled out LTE.
I know Verizon Wireless uses a CDMA network for their services. But LTE is GSM right? I remember the UMB standard which gives 4G on CDMA was abandoned in favor of LTE. So does that mean the Droid RAZR/MAXX have both GSM and CDMA radios? Also is it possible to have voice/video calling on 4G LTE?
Yes, the XT912, XT910, and Maxx phones use the same chipset and have GSM and CDMA radios. They have just been disabled for the different regions.
LTE is entirely separate and different then CDMA/GSM. LTE uses the 700Mhz spectrum, while GSM/CDMA uses 850Mhz to 2100Mhz. Eventually, once LTE becomes more mainstream will we see chipsets that support GSM/CDMA/LTE/HSPA+
The Razr has the capabilities to be used with GSM and CDMA, carrier depending. But not LTE. It simply doesnt have the chipset.
And 4G is a loose term. It is used in reference to LTE, and HSPA+. Since our phone only supports data speeds up to 14.4Mb down (HSPA), it is not a 4G device.
g2tegg said:
LTE is entirely separate and different then CDMA/GSM. LTE uses the 700Mhz spectrum, while GSM/CDMA uses 850Mhz to 2100Mhz. Eventually, once LTE becomes more mainstream will we see chipsets that support GSM/CDMA/LTE/HSPA+
The Razr has the capabilities to be used with GSM and CDMA, carrier depending. But not LTE. It simply doesnt have the chipset.
And 4G is a loose term. It is used in reference to LTE, and HSPA+. Since our phone only supports data speeds up to 14.4Mb down (HSPA), it is not a 4G device.
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The cdma Droid razr and maxx are LTE phones. I don't know about the GSM Motorola razr.
Sent from my DROID RAZR using XDA
wildklymr said:
The cdma Droid razr and maxx are LTE phones. I don't know about the GSM Motorola razr.
Sent from my DROID RAZR using XDA
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it often makes economic sense for a large scale electronics manufacturer to make only a single bit of hardware and then enable/disable various bits in software. Intel has been doing this for almost 30 years. I've seen several references to all RAZRs having identical hardware including one from a Verizon employee who claimed could flash a RAZR from gsm to cdma and then back again.
---------- Post added at 08:02 PM ---------- Previous post was at 08:00 PM ----------
what i often wonder is if there is a 1700 (tmobile) radio buried somewhere deep in the RAZR.
iolinux333 said:
]what i often wonder is if there is a 1700 (tmobile) radio buried somewhere deep in the RAZR.
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Nah, iFixit did a teardown and found a Qualcomm MDM6600 baseband. That doesn't have T-Mobile's frequencies. If it had the option for pentaband GSM, Motorola would definitely market the hell out of that - think about how many more customers they could get.
http://www.ifixit.com/Teardown/Motorola-Droid-RAZR-Teardown/7048/1
wildklymr said:
The cdma Droid razr and maxx are LTE phones. I don't know about the GSM Motorola razr.
Sent from my DROID RAZR using XDA
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Your right. I had no idea that Verizon had a LTE version. I guess thats the difference between the XT910 and the XT912. Im curious to know if the XT912, unlocked, will work with other LTE carriers besides Verizon.
On top of that, I am unable to find any ifixit reviews of the XT912. Only the XT910. Is there actual hardware differences?
My question is since LTE is GSM and Verizon is NOT GSM, how do they manage to provide LTE service? Does the phone keep switching between CDMA and LTE or what?
cheekrox said:
My question is since LTE is GSM and Verizon is NOT GSM, how do they manage to provide LTE service? Does the phone keep switching between CDMA and LTE or what?
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When you're in an area that has LTE coverage, you'll get LTE. When you're in an area that does not have LTE coverage, the phone automatically switches to CDMA.
The Verizon RAZR does have a GSM radio. But as others have said, it's disabled. Verizon has said they're going to enable the GSM radio on the Droid 4 for international use in the future, and since the Droid 4 and the RAZR are pretty much identical internally, many people think that Verizon may eventually enable the GSM radio on the RAZR as well at some point (though there has not been any official or unofficial word from Verizon/Motorola on that).
To answer your questions:
1. They are using GSM. They partnered with Vodafone in 2007 and have been building their LTE network since then.
2. Yes. CDMA for 3G and LTE for 4G.
cheekrox said:
My question is since LTE is GSM and Verizon is NOT GSM, how do they manage to provide LTE service? Does the phone keep switching between CDMA and LTE or what?
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Riight! So the DROID RAZR keeps switching between LTE (which is GSM) and Verizon's CDMA network right? Which means that it HAS TO have a GSM radio in it for LTE to function? Also I heard voice is NOT possible over 4G, is this true?
cheekrox said:
Riight! So the DROID RAZR keeps switching between LTE (which is GSM) and Verizon's CDMA network right? Which means that it HAS TO have a GSM radio in it for LTE to function? Also I heard voice is NOT possible over 4G, is this true?
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Like myself and others have already said, there is a GSM radio in the Verizon RAZR. It is just not possible to use it. The Verizon RAZR will not work on a GSM network (at least not until the capability is enabled by Verizon or a developer).
VoLTE (voice over LTE) is possible, but no one is really doing that yet.
LTE is a form of GSM, but it's best to think about the two as completely different since in the real world their manner of operation is different. So don't think of LTE and GSM as the same type of technology that's interchangeable. Think of each as separate from the other.
Also, don't confuse what is often referred to as 4G on GSM networks (HSPA+) and LTE. They're also completely different. HSPA+ is often called 4G, but it's actually just an extension of existing 3G technology. LTE, for all intensive purposes, should be viewed as a completely different technology.
bsweetness said:
Like myself and others have already said, there is a GSM radio in the Verizon RAZR. It is just not possible to use it. The Verizon RAZR will not work on a GSM network (at least not until the capability is enabled by Verizon or a developer).
VoLTE (voice over LTE) is possible, but no one is really doing that yet.
LTE is a form of GSM, but it's best to think about the two as completely different since in the real world their manner of operation is different. So don't think of LTE and GSM as the same type of technology that's interchangeable. Think of each as separate from the other.
Also, don't confuse what is often referred to as 4G on GSM networks (HSPA+) and LTE. They're also completely different. HSPA+ is often called 4G, but it's actually just an extension of existing 3G technology. LTE, for all intensive purposes, should be viewed as a completely different technology.
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I agree with you 100 percent. Except the fact that LTE is not a form of GSM nor CDMA. Its completely different.
The funny part about HSPA + is that its HSPA with mimo technology. Theoretically making it 3g on steroids.
razr maxx
There are two separate models of the Razr Maxx.
the first one, the xt912 released months ago is for the US market and is a CDMA phone
here s the link with all the specs:
developer . motorola . com / products / droid-razr-maxx-xt912
the second one, the xt910, is a gsm phone. and works on 2g and 3g networks around the world.
Connectivity
GSM 850/900/1800/1900,
W-CDMA 850/900/1900/2100
as u can read as well on Motorola website.
i cant post entire links due to restrictions to my new account but if u go on typing the url without spaces u will see all the specs
developer. motorola . com / products / razr_maxx_xt910
I have already bought the xt910 and i use it in Australia on normal 2g, 3g and 3.5g capable networks. It works on Telstra Next G network as well. The battery is amazing. 2 days of intense use in 3.5g without recharging it. 5 days of moderate use (gps - bluetooth - sync off) without a charge.
If you head over to the bionic forum a developer has been able to unlock the GSM radio for the RAZR/Droid 4/Bionic. It's compatible with ATT HSPA and T-Mobile edge. As far as I know it's still a work in progress.
Sent from my DROID RAZR MAXX via XDA
And yes at this time no carrier (that I know of) carries voice over LTE. It's still in the experimental stages.
Sent from my DROID RAZR MAXX via XDA
convert a cdma xt912
Hey guys I want to know if anyone could convert a cdma xt912 into a GSM phone by using a ROM or something ??
alyreda said:
Hey guys I want to know if anyone could convert a cdma xt912 into a GSM phone by using a ROM or something ??
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Nope, you can get it running on 2G though I believe.
Sent from my ADR6425LVW
So is there any way I could get 4G working on my XT910?
cheekrox said:
So is there any way I could get 4G working on my XT910?
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Not that I know of.
Sent from my ADR6425LVW
A friend I work with just got the EVO 4G LTE and he is coming from the OG EVO 4G. He got 4G on his old phone where we are at but he can not get 4G on the new EVO 4G LTE. Is it because the old EVO did wimax and the new one doesnt have a wimax chip in it, only LTE and they have not upgraded to LTE in our area yet? And he has LTE/CDMA selected under mobile network settings.
you are right this phone has no wimax only 3g that's why people who got wimax capable phones still using then cause sprint 3g is a joke they should be ashamed at calling this 3g. I just came to sprint three weeks ago from TMobile. TMobile edge/2g Network blows sprint 3g away i mean if you compared the three g speeds of TMobile it's faster than wimax and if you compared TMobile hspa to sprint Wimax it make that look slow. I didn't know sprint was thus bad our i would of stayed i just got tired of TMobile not getting any good phones.
Sent from my EVO using XDA Premium App
bonebeatz1234 said:
you are right this phone has no wimax only 3g that's why people who got wimax capable phones still using then cause sprint 3g is a joke they should be ashamed at calling this 3g. I just came to sprint three weeks ago from TMobile. TMobile edge/2g Network blows sprint 3g away i mean if you compared the three g speeds of TMobile it's faster than wimax and if you compared TMobile hspa to sprint Wimax it make that look slow. I didn't know sprint was thus bad our i would of stayed i just got tired of TMobile not getting any good phones.
Sent from my EVO using XDA Premium App
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then that is probably the deal. i have Verizon, so dont really keep up with what is going on with Sprint around my area, but i have not heard of them getting LTE around here yet. i am just north of houston, they may have it down in houston, but houston always gets new things, then my area gets it shortly after as they start to expand out. i know verizon and att have their LTE working here. but you are right about Sprints 3G speeds, i downloaded speedtest on his phone and it took like 3 minutes. haha
bonebeatz1234 said:
they should be ashamed at calling this 3g.
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Which is ironic, as every carrier should be ashamed of calling whatever their top service is "4G". If you had actual, true-to-spec 4G service, you'd need a new pair of pants.
Sent from my EVO using xda premium
SilverZero said:
Which is ironic, as every carrier should be ashamed of calling whatever their top service is "4G". If you had actual, true-to-spec 4G service, you'd need a new pair of pants.
Sent from my EVO using xda premium
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Technically Sprints WiMax was closer in terms of Spec than any carriers LTE or hspa+. But with almost no backhaul improvements over 3g, piss poor rollout speed, and craptastic implementation, it was doomed to fail. LTE gives us 3.5G. LTE advanced will bring us true 4G with LTE tech. Sadly I'm not sure we will ever see it, or be able to afford it with the way carriers are treating data plans.
With true 4G you'll be able to burn an AT& T data cap in 10 minutes and Verizons in 30 minutes. By this time I assume network vision will have failed miserably and Google will have purchased Sprint for pennies and made a prepay carrier full of Android badassery.... At least that's what I'm hoping for.
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