yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] thebryceee:
I think they're curious about T-Mobile's LTE speeds here in the states.

Sent from my Nexus 4
[Nexus 4 General] Kandydish:
Not so much the speeds but actually picking up the T-Mobile signal. I have the right settings set up (which also give me a solid 3G/+ connection) so when I get near the LTE tower, I'll post my findings.

---------- Post added at 12:59 PM ---------- Previous post was at 12:56 PM ----------

Also, what's "LTE Ram Dump" from the testing menu? (*#*#4636#*#*)
[Nexus 4 General] karendar:
It dumps your RAM and transfers it on LTE to anyone who wants it! WOOT WOOT!

Probably used for creating dump files for debugging.
[Nexus 4 General] kolorolokolo:
Hi,

This is my first post so I am saying 'Hi' to everybody :)

I have tested Nexus 4 and it is typical cat 3. LTE UE, capable of 102Mbps transfers in DL and 48Mbps in UL direction. I have tested it on 1700/2100 Band 4 radio. LTE call with Nexus 4 was possible with JB4.2.1. With JB4.2.2 OTA upgrade, the 'LTE only' option from *#*#4636#*#* was taken away and I could not make attach anymore. I have screenshots taken from Network Speed app taken during UDP data transfer in DL and UL separately, by using iperf on sever and the phone. Unfortunately, since I am new to the forum I can't post photos yet. Anyone have an idea how to post the links here?

Hope this helps :)
[Nexus 4 General] Freshly_Snipes:
Who needs LTE with speeds like this? T-Mobile wins here in Atlanta.

View attachment 1772770

Sent from my Nexus 4
[Nexus 4 General] thebryceee:
Latency and upload smokes HSPA+. Latency is the key factor that makes LTE faster.

Sent from my Nexus 4
[Nexus 4 General] Eric-1987:
Even though both are more than enough for a phone.
[Nexus 4 General] Freshly_Snipes:
Yeah latency sucks. I swear there is like a 5 second hold on loading data lol

But none the less it's still cool for a phone.

Sent from my Nexus 4
[Nexus 4 General] creaturemachine:
Not bad, but still not this:

View attachment 1773971
[Nexus 4 General] milan03:
Is it? Well, this is T-Mobile's HSPA+21 latency in New York City. Have you seen lower than 27ms latency on LTE?
[Nexus 4 General] thebryceee:
Better in places than others but from my experience, LTE was a lot quicker, even though download speeds were faster on HSPA+. We usually get a delay with HSPA+ 42 because the second channel has to kick in.

Sent from my Nexus 4
[Nexus 4 General] milan03:
Yeah that's true. It's the new cell equipment they're using that's head and shoulders above the other US carriers.
[Nexus 4 General] Qbancelli:
I want my LTE already.

Tmobile is dragging its feet.
[Nexus 4 General] Jayrod1980:
A noob question but what can I do to get my connectivity back? Flashed the old radio on 4.2.2 and now I can't call anyone... Kinda sucks. I don't want to reflash the image and lose everything
[Nexus 4 General] ross1998:
On stock rom using old radio on 4.2.2 the calls won't work so if you want 4.2.2 and calling then flash aosp based rom(cyanogenmod).
[Nexus 4 General] manus ferrera:
So if I am able to change my APN to get lte would I still be able to connect to 3g when not in the area? Does the sign change from the H to something else or does it stay? And any adverse affects of using it like battery drain or anything specific? Is it easy to return back to stock APN if any bad happens
[Nexus 4 General] thebryceee:
Yes you'll still get 3G. H will turn into 4G when connected to LTE. I think T-Mobile uses the new LTE technology but I haven't ran a full day on LTE so I'm not sure how it affects battery. It's as easy as flashing the .48 radio in recovery to get back to stock. The .33 radio broke in-call audio on stock 4.2.2 so you might want to either flash a 4.2.1 ROM or CM10.1 and the .33 radio.

Sent from my Nexus 4
[Nexus 4 General] cobyman7035:
30 minutes of help t e n your phone will be smoking hot

Google Voice via my r72 NeXus⁴ using XDA Premium
[Nexus 4 General] reuthermonkey:
So the latest cm10.1 will let me have 4.2.2, and I can still flash the .33 radio to get LTE?
[Nexus 4 General] thebryceee:
I have flashed CM10.1 and the .33 radio and my in-call audio has worked as well as LTE settings stick in the phone info menu, however, I can't say definitively that you will connect to LTE. When I connected to LTE, I was still on 4.2.1 and have switched to Straight Talk since then. I'll jump back on T-Mobile on the next billing cycle and see.

Sent from my Nexus 4
[Nexus 4 General] creaturemachine:
That's not always the case. Its working fine for me.
[Nexus 4 General] ross1998:
Is that with verizon iphone 5 ot At&t iphone 5?
[Nexus 4 General] Ekae:
wow i think LTE is dead already.
[Nexus 4 General] zivan56:
Voice is working fine on Rogers with LTE enabled as well with 4.2.2 and older radio. It sounds like there is an issue with circuit switched fallback with T-Mobile's equipment and the phone.
[Nexus 4 General] kmoz:
No data with LTE selected on .33 modem on Rogers

Had LTE data working on stock 4.2.2 after flashing .33 modem back. No issues with voice calls.

Flashed Cyanogenmod 10.1 M2 and the .33 modem. Can select LTE and it sticks. Can make voice calls but get no data until I switch back to WDMCA. Any one else having this issue on Rogers?
[Nexus 4 General] milan03:
GSM A1428.
[Nexus 4 General] BTTNext:
I'm having the same issue. Has anyone figured out how to fix this?
[Nexus 4 General] nexus4_13:
Why does my phones signal constantly change between h and h+? I have the latest paranoid android ROM.
[Nexus 4 General] BTTNext:
Wrong thread
[Nexus 4 General] zivan56:
It's due to a "mess" in the cell info implementation on the Nexus 4/Android 4.2

The basic problem is that all Google services use the MCC/MNC/LAC/CID to approximate your location via the cell tower (for non-CDMA systems). This is a GSM/UMTS based concept which is different in LTE. LTE only has MCC and MNC, then it has PCI/TAC/CI which are *somewhat* equivalent to LAC/CID.

PCI is basically something like a subset of CID, with CI being something that is more like CID. However, CI is 28 bit but CID is 16 bit, so they can't be equivalent (can't fit).

TAC and LAC are the same size, so they could be equivalent. However, Google would need to use this convention when mapping out cell network for geolocation as well.

Google "fixed" this in Android 4.2, by not forcing manufacturers to convert LTE cell info to GSM cell info by implementing CellIdentityLte,CellIdentityGsm, and CellIdentityCdma.

However, the Nexus 4 doesn't implement the 4.2 cellid API (it returns null instead of one of the above). Instead, it relies on the old mechanism.

My theory on what happens on the Nexus 4 is the propriatary Qualcomm RIL tries to return the LAC/CID for the circuit switched fallback network (GSM or UMTS) which should be fine for geolocation, but it's not very well impemented. So on some systems (it appears Bell/Telus have a higher sucess rate than Rogers) it does work, but others it doesn't. It could be due to LTE base station software/manufacturer/etc or perhaps something internal to the Nexus 4 driver.

tl;dr is Google needs to fix it. I don't have LTE access to test how the N4 behaves, so I can't say for certain the exact cause.
[Nexus 4 General] Qbancelli:
T-Mobile LTE sightings in Brooklyn.

http://www.howardforums.com/showthread.php/1792144-official-T-Mobile-USA-LTE-thread/page10
[Nexus 4 General] Cuzz1369:
No LTE for me. Followed every guide i could find. On Virgin Canada, finally called them to see if it was enabled on my account they said since my phone isn't capable they wont activate it from their end. :mad:
[Nexus 4 General] ross1998:
Maybe there is a legal way to fake your device ID/IMEI so they think you have LTE capable device...
[Nexus 4 General] DespairFactor:
LTE on Nexus 4

LTE on Nexus 4 is awesome despite having no amplifier. If you haven't tried it yet, do it!

---------- Post added at 09:02 PM ---------- Previous post was at 08:53 PM ----------

Do you have an LTE sim? Maybe if you do they will see it as a LTE phone. I did the same with Bell and Bell owns Virgin. All they can see on their end is my IMEI because it is an unlocked phone purchased from an external retailer.:)
[Nexus 4 General] yyz71:
Yep LTE works nicely here on virgin mobile in Toronto even though being told by virgin my phone isn't capable of doing so how wrong there were..

Sent from my Nexus 4 using Xparent BlueTapatalk 2
[Nexus 4 General] DespairFactor:
Google stuff works for me, just not Facebook or Cineplex:(
[Nexus 4 General] rr5678:
I'll have to go see this :p

I wish MetroPCS had sim cards - I can see their LTE network where I live. If they had it I would open an account just to mess with LTE on my phone :p
[Nexus 4 General] cmstlist:
Yes they do have SIM cards on LTE devices. I think Sprint is the only LTE carrier that seals up the SIM slot.
[Nexus 4 General] milan03:
Ok I got attached to LTE in New York City, a few times. Get disconnected after 5mins or so.

Please don't forget to run a few test on Sensorly if you're connected so that we can start getting T-Mobile LTE mapping there for easier spotting.
[Nexus 4 General] imoumni:
Is it 2*5?
[Nexus 4 General] milan03:
using 4.2.1. never updated to 4.2.2, stock radio.
[Nexus 4 General] imoumni:
I meant bandwidth are they only deploying 5mhz?
[Nexus 4 General] Cuzz1369:
Well i would really appreciate some help from you on exactly how you achieved it. Tried a lot of different things. Cant get it to go. Half newb here so any help is greatly appreciated. I do have a LTE sim card. I live in kitchener, I know the have LTE here.
[Nexus 4 General] milan03:
It looks like it's 2x5Mhz yes. But it's still too early to tell.
[Nexus 4 General] efrant:
Here are all the things you need (checklist):

1) An LTE SIM

2) LTE coverage

3) LTE enabled in the radio settings on the N4

4) The proper APN for LTE for your carrier inputed into your N4 AND selected

5) An LTE compatible data plan

6) LTE provisioned on your account.

Point #6 above is what you have to call in to make sure it is there. If they don't want to add it, explain to them that you bought an LTE device from outside Canada and you want to be able to use LTE. Ask them, if need be, to add a dummy IMEI to your account to allow provisioning. You may have to call back a few times until you speak to a CSR that actually knows what they are talking about. If you can't get anywhere with that, then you can try putting your SIM in an LTE device sold in Canada and then call them to make sure that LTE is provisioned on your account, then try it in your N4.

@all: please do not talk about "faking" IMEIs on devices, as that is illegal. There is a difference between that, and having another IMEI provisioned on your account.
[Nexus 4 General] reuthermonkey:
I wouldn't get so excited - have you seen MetroPCS' LTE speed tests? If you think 5mbps/800kbps on Metro's horrible data network is worth the effort, then have fun!
[Nexus 4 General] yyz71:
The checklist efrant mentioned from 1-6 is correct.. But what I did to get it to stick after rrboot . Lowered my baseband back to .33 Updated my bootloader which has nothing to do with the radio. Used Root explorer edit my build prop volia. Here are some pics.

Sent from my Nexus 4 using Xparent BlueTapatalk 2
[Nexus 4 General] ross1998:
Has anyone heard of any ways to test LTE with iphone 5 like maybe creating the t-mobile carrier file it needs or maybe some apps on cydia, I have an iphone 5 factory unlocked a1428 and drive throught seattle alot and my school tower was one of the first to get reframed for 3g/4g on 1900.

Also when you do manual search for carriers on iphone it shows T-mobile, T-mobile 3G, and Atnt so maybe it would display T-mobile(LTE) when you are in lte area?
[Nexus 4 General] DespairFactor:
I think it would just be the t mobile one and it would default to the service based on your location
[Nexus 4 General] rr5678:
Oh. It's that bad? They might as well call it 3G.
[Nexus 4 General] BTTNext:
I doubt that Google will be willing to fix it if it's a Nexus 4 specific issue, considering that the phone is not supposed to support LTE in the first place.

But is this something that could be fixed through CyanogenMod or the like?
[Nexus 4 General] ninjafan:
Representatives have to tell you that stuff isn't possible even though it is, because it doesn't go in their favor($$). They also say it isn't possible to use an iPhone 4/4s on at&t prepaid, but look how many people do that.
[Nexus 4 General] DespairFactor:
Google won't fix it because they haven't got the licensing to use LTE in the phone and the amplifiers for it are not present.
[Nexus 4 General] droidwrx:
The required amplifiers, at least for some bands, *are* present. See the Anandtech article (I can't post links yet).
[Nexus 4 General] DespairFactor:
Either way, the licensing isn't there for the technology
[Nexus 4 General] reuthermonkey:
Licensing is fine. Problem is they don't want to submit it to the FCC for approval again.
[Nexus 4 General] DespairFactor:
Because fcc didn't approve it!
[Nexus 4 General] milan03:
Got me some LTE love in NYC on T-Mobile. Latency is insanely low, network isn't ready for prime yet, still testing, but I managed to connect for a short period of time quite a few times over the last three days and ran some tests.
[Nexus 4 General] rr5678:
It can now be mapped with Sensorly

http://www.sensorly.com/map/4G/US/USA/T-Mobile/lte_310260
[Nexus 4 General] Neefy:
So can anyone link me to "how to flash the old radio"? I can't seem to find it, and will this work on my Paranoid Android? :)
[Nexus 4 General] thebryceee:
CM10.1 nightly works fine with the .33 radio for me

Sent from my Nexus 4
[Nexus 4 General] Gigabitex2:
Here is a link to the LTE fix thread. I'm not sure what ROMs are working with the fix..CM does ( I think ). http://xdaforums.com/showthread.php?t=2147299
[Nexus 4 General] DespairFactor:
Same for me
[Nexus 4 General] mdh007:
I'm with Bell Canada and have been using LTE for the last few days. Speeds are great (between 12-30 mbps) but I have noticed my battery die a lot quicker.

LTE uses a lot more battery eh? I was getting 5 bars before and now 2 with LTE so I'm guessing that could be a factor as well.
[Nexus 4 General] moldovanos:
Are you on old radio or new?
[Nexus 4 General] ttzero13:
I wish I could use LTE on mine
[Nexus 4 General] DespairFactor:
How much quicker? Where are you located in Canada? I use Bell LTE and have since I got my nexus. I'm just wondering in case this means I can lengthen my battery life.

Thanks!
[Nexus 4 General] Christopher583:
Agreed, video or it did not happen
[Nexus 4 General] cobyman7035:
LTE = battery killer. Makes my nex4 really heat up. Can burn ears on screen phone calls

Google Voice via my r72 NeXus⁴ using XDA Premium
[Nexus 4 General] draugaz:
Don't worry, LTE is not used for voice calls yet.
[Nexus 4 General] ChongoDroid:
I find the N4 remarkably good on battery while on LTE. No worse then my hoxl on LTE which was quite good I thought.

Sent from my Nexus 4
[Nexus 4 General] DespairFactor:
Do you notice a difference though? If so, how much?
[Nexus 4 General] thebryceee:
This is with LTE Only selected. The nexus can see AT&T and T-Mobile but can't connect to it. Not sure what the hell is 311660 is.

Sent from my Nexus 4
[Nexus 4 General] milan03:
311660 is MetroPCS.
[Nexus 4 General] Eddy130306:
Did you have to change your apn settings or no? or anything else?
[Nexus 4 General] Ace42:
Yeah T-Mobile LTE is already being testing in NYC, hopefully it'll be rolled out before end of April...
[Nexus 4 General] ross1998:
I auctally caught an LTE signal in downtown seattle on my iphone 5, I know you can't officially use tmobile lte on iphone 5 yet but google "Iphone 5 LTE enabler" and with jailbreak you can enable LTE. Sadly I didn't have Speedtest app on iphone so by the time I finished downloading I either got kicked off the network or it shut down
[Nexus 4 General] tonymjacc:
whooooa that a coool speed! want to live in USA.
[Nexus 4 General] scream4cheese:
We're overcrowded. :laugh:
[Nexus 4 General] milan03:
Yup APN = fast.t-mobile.com

APN Protocol = IPv4/IPv6

That's it.
[Nexus 4 General] Eddy130306:
Thanks. By the way, how do you get the phone settings to stick? After each reboot it changes.
[Nexus 4 General] milan03:
I don't, I just tinker with radio settings so much that it doesn't matter to me :)
[Nexus 4 General] maigre:
Are you running Android 4.2.1 to be able to get LTE?
[Nexus 4 General] ChongoDroid:
Not too bad, kinda hard to judge battery life because it depends on usage but for long downloads it's much better because it can race to finish. Doesn't sit downloading as long but for normal browsing it barely gets warm.

Using aokp pub and faux 11 at stock speeds

Sent from my Nexus 4
[Nexus 4 General] Eddy130306:
You can use a custom rom (Android 4.2.2) with the .33 radio.
[Nexus 4 General] nviz22:
Is this legit or is this a root to circumvent T-Mobile and Google's block on LTE? If it is available legit, I am going Nexus 4 baby. Bye bye Galaxy S3. Hello Nexus 4 and Nexus successor in October.
[Nexus 4 General] DespairFactor:
It's legit, works on anything with the old radio
[Nexus 4 General] theville502:
I have been experiencing lte like upload speeds in the louisville, ky area for the past few days. I have used both apn settings and radios. Same results. Havent been able to connect to lte only though.
[Nexus 4 General] milan03:
That upload is out of range for any LTE configuration on any network, globally. Erroneous.
[Nexus 4 General] Shark87:
Just tried seeing if I could get T-Mo LTE on my N4 here in NYC, but no luck. Got MetroPCS only when I checked the networks I could connect to. Good to hear that T-mobile is already testing in NY though, hope to be able to get on the LTE network soon.
[Nexus 4 General] moldovanos:
I started to get those crazy upload speeds today in Metro Detrot, their network is probably getting ready for LTE, so its messed up at the moment
[Nexus 4 General] milan03:
Which area?
[Nexus 4 General] lrdm:
Same here by the U.N. Only 311660 for MetroPCS.
[Nexus 4 General] SK1LLS:
Sorry for the noob question guys but if we roll back the radio were LTE works is it possible to get the nexus working voice text and data?
[Nexus 4 General] thebryceee:
Official T-Mobile LTE launch date 3/26/13 in 7 cities.

http://www.phonedog.com/2013/03/22/...ch-date-first-seven-cities-that-will-go-live/

Sent from my Nexus 4
[Nexus 4 General] ziddey:
lazy question, not a noob question. it's pretty much asked once a page
[Nexus 4 General] SK1LLS:
I meat voice data and text on Verizon* sorry
[Nexus 4 General] efrant:
The N4 does NOT work on Verizon's network.
[Nexus 4 General] tippingvan:
If i'm on 4.2.2, and change the APN settings to what you say, will that make any difference in data speed??
[Nexus 4 General] maigre:
I wasn't the one who gave APN edit suggestions, but I don't think LTE will work with 4.2.2 because of changes in the radio. Google, for whatever reason, cut off LTE support in 4.2.2. I suspect the settings you're referring to won't work on other than LTE.
[Nexus 4 General] Shark87:
Upper West Side.
[Nexus 4 General] milan03:
I used to connect to 65th and Central Park West right at the entrance to cross town park way. Didn't check that area for a few weeks though.

The Ericsson AIR panel is on that church corner of 65th and Central Park West facing the park. Another is on the other side of that church facing Columbus.
[Nexus 4 General] efrant:
Just so there is no confusion here: LTE works fine on build JDQ39 (i.e., 4.2.2), but it does not work with the newest radio (i.e., 0.48). So, you need to be running 4.2.2 plus a radio older than 0.48 for it to work. In addition, don't foreget that you need the proper LTE APN settings for your carrier, an LTE compatible SIM, an LTE data plan, LTE provisioned on your account, and of course, LTE coverage.

Note that some users on T-Mobile have been having issues when running 4.2.2 with an older radio on the T-Mobile network. (The Canadian carriers have no issue, neither does AT&T.)
[Nexus 4 General] thebryceee:
Yeah, no in-call audio. .33 will not work on stock. Works on CM10.1, AOKP and Liquid, the only ROMs I've tried.

This is on T-Mobile's network.
[Nexus 4 General] jpjrlive:
lte is overrated.. drains battery big time...
[Nexus 4 General] thebryceee:
LTE isn't overrated for speed freaks. To some people, that extra few seconds more is not a big deal, but a big deal to some. We live in a world of instant gratification and just those few short seconds can change a user's experience. Different strokes for different folks.

Be it a few seconds difference in web page load times, there is a very noticeable difference between HSPA and LTE. Even more so with HSPA+ 42 because it takes a bit longer for the second channel to kick in. With the way speeds are ever increasing, just a few seconds feel like a lifetime in today's technology. First world problems.
[Nexus 4 General] Shark87:
Hmm, I'll have to check it out then.

The improved ping performance is really nice as well. For example I've tried playing Shadowgun: Deadzone over HSPA+, but it lags. When I go on wifi it works just fine. HSPA+ is faster than the wifi I get, but the ping is much better over wifi than it is on HSPA+.
[Nexus 4 General] thebryceee:
Yup, latency is a night and day difference. Sometimes it takes forever for the second channel to kick in for HSPA+ 42.
[Nexus 4 General] ismethajametovic:
I disagree. I'd go with fast up and download speeds over battery life any damn day. And plus, it's all about user power MGMT. If one monitors their activity on their phone, phone's can last hours on end. :p
[Nexus 4 General] rr5678:
Astoria, Queens.

Now that's what I call Success! Vol. 1
[Nexus 4 General] milan03:
Except you have no data flow, 4G logo. Change your APN Protocol to IPv4/IPv6 and you'll actually properly authenticate.
[Nexus 4 General] rr5678:
It was on v4/v6, fast.T-Mobile.com. Kicked me off without authenticating. Never was able to connect again.
[Nexus 4 General] milan03:
Which part of Astoria?
[Nexus 4 General] rr5678:
Astoria Boulevard station, but next to the Burger King.
[Nexus 4 General] nviz22:
Can you get blacklisted from T-Mobile for using "illegal" software to use LTE?
[Nexus 4 General] rr5678:
What do you mean by illegal?
[Nexus 4 General] dr.devman:
omg lololol
[Nexus 4 General] rr5678:
okay dot joint photographic experts group
[Nexus 4 General] milan03:
Ah ok. FYI, the panels you're connecting to are located in front of Manhattan bound N train platform. There are 4 Ericsson AIR panels few feet away if you get up there you'll be getting insane signal quality. :cowboy: Just sayin...
[Nexus 4 General] evilive27:
I think so... Cause I have the old 6gb plan and never had lte but once I did the steps it's working. So I'm not sure if they'll charge me for being on the lte towers without letting them know
[Nexus 4 General] ghettopops:
What would the ATT LTE setting look like?
[Nexus 4 General] KevinChaos:
I found out that error was user error lol. The symbols are reversed after the numbers. It's *#*#4636#*#*
[Nexus 4 General] InvalidUsername:
WTF? So LTE is actually working on the N4? :eek:
[Nexus 4 General] Rengoku:
Did you actually get an lte sim card? or were you using the same sim card from your old plan?
[Nexus 4 General] opethfan3:
If someone could post a screenshot that'd be super.
[Nexus 4 General] evilive27:
Had an lte enabled card from my gs3 international version.... which doesn't have lte. But when I switched from the regular Sim to the micro, they gave me a lte one
[Nexus 4 General] BravoMotorola:
idk. weird stuff going on here to be honest.
[Nexus 4 General] khaltire:
Guys, the factors required FOR SURE are the following (at least for Rogers), I would assume same for any provider:

LTE-enabled SIM CARD

LTE-enabled PLAN (through your carrier)

LTE-enabled phone (LOL 3 hours ago I thought I didnt have this)!

LTE APN settings (it appears these can be used for HSPA backwards compatibility)

You wont be charged extra to get your plan converted to LTE, although they might be wondering why you're doing it but usually its not an issue with Rogers
[Nexus 4 General] chug:
Has your reception been affected or anything by enabling this?