yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] atrocious00:
Antennae?!?!?!?!

This is what im curious about as well. I can see a reason for them having an LTE chip on the phone, simply because it may be a highly cost effective manufacturing process to just build a kinda all in one chip that you put in several phones for multiple carriers. Perhaps google didnt want carriers to feel like they secretly duped them. Can anyone verify if the G Nex 4 can actually transmit and receive LTE bands, On my defy i had cyanogenmod 7 and a baseband switcher, Theoretically if there was one made specifically for the G Nex 4 and the multi band chip we know for sure its packing, then someone could test its ability to use LTE.... this would be the most epic phone suprise ever.

I WILL START FUNDING THIS PROJECT THIS MONTH IF ANYONE THINGS THEY CAN HELP DO THIS HIT ME UP.
[Nexus 4 General] juicyjones:
Well it's working now, and there's a power amplifier and the whole antenna shebang on the N4, including the supporting and attendant software running in the baseband. The only reason it wouldn't work is if google pushes out an android update to the phones to disable it, which they haven't done yet.
[Nexus 4 General] allgsmnetwork:
I in 3g+ a 42 mb with my providire wind italy 11 mb in down and 2,5 in up :)

In the menu secret have 4g not for europe frequency :(

http://www.telefonino.net/LG-Electronics/Notizie/n31622/Nexus4-LG-supporta-reti-LTE-in-banda-4.html
[Nexus 4 General] halninekay:
Do you think it will work even in Germany with T-Mobile? Kinda noob question, I'm sorry.
[Nexus 4 General] 0.0:
its a good thing they never, because look at the mess google has done with all the orders already! imagine if there were even more people...i would be so pissed off
[Nexus 4 General] jordanadams86:
Carriers can choose, depending on chip port

availability and their respective roaming agreements, to offer devices that combine a wide array

of 4G band combinations—including any of the following:

• 700 MHz 3GPP bands (Band Classes 12, 13, 14, 17);

• 850 MHz cellular band (Band Class 5);

• Original PCS band (Band Class 2);

• PCS Block G (Band Class 25);

• AWS-1 band (Band Class 4);

• Potential AWS-4 band (Band Class 23);

• Original 800 MHz iDEN band (Band Class 26); and

• BRS band (Band Class 41).

That's what it say about the chip's bands in the FCC documentation. Found here: http://apps.fcc.gov/ecfs/document/view?id=7021921420
[Nexus 4 General] agtitan:
I have a feeling this thread is about to have a ton of views and replies...
[Nexus 4 General] Tomdarkness:
You make a fair point :P
[Nexus 4 General] milkisgood123:
This is CRAZY news. But doesn't Google have to license it as LTE before they can actually use the LTE? But I do know devs will find a way to hack the LTE eventually lol
[Nexus 4 General] richteralan:
So Nexus 4 does have Transceiver chip for LTE.

Well maybe the best Nexus phone ever?
[Nexus 4 General] James.UBC:
You're right but could they do it in the future then roll out a firmware update? O.o
[Nexus 4 General] richteralan:
The hardware is there so I don't see there will be any problem in terms of driver/software update.

Except LTE licensing problems.
[Nexus 4 General] stormtroopercs:
do you think developers would be able to enable it?
[Nexus 4 General] thelivingdread:
Maybe the N4 has the same motherboard as the Optimus G? Also, is it possible that ifixit mistakenly labeled it as a 4G chip?
[Nexus 4 General] milkisgood123:
Looking up the model of the chip, there is no doubt this a 4G LTE chip.
[Nexus 4 General] stormtroopercs:
could be.. but for some reason i believe they are right.. :p
[Nexus 4 General] richteralan:
one post wonder questioning ifixit....
[Nexus 4 General] xl DIGITAL lx:
Is it possible that this might be the reason why it's not fully into AOSP?
[Nexus 4 General] richteralan:
Someone needs to leak the driver first.
[Nexus 4 General] stormtroopercs:
highly doubt it..
[Nexus 4 General] holycrap8:
Look at where you're posting. XDA is full of talented developers looking to do projects of this nature, and there certainly seems to be more than a few people interested in this device...

If its possible, they'll find a way. Can't wait to see how this pans out!
[Nexus 4 General] Stadsport:
Wouldn't it still need antennae in place for LTE to function?
[Nexus 4 General] thelivingdread:
I'm only asking if it's possible. Sorry if that's a problem
[Nexus 4 General] xpsg:
I think we can use the Optimus G's drivers to hack in LTE functionality if the chip is what I hope it is.
[Nexus 4 General] 0.0:
do you mean another radio? i dont think it needs another antennae. its an all-in-one radio thing now. thats what companies were aiming for, and looks like qualcomm was able to do so :D
[Nexus 4 General] zopiclone:
This is an interesting find, unfortunately my carrier doesn't have LTE right now (Wind Mobile), but I would be very happy to have this functionality for traveling and future network upgrades or a carrier switch.
[Nexus 4 General] James.UBC:
how's the coverage?

I'm thinking about switching :D
[Nexus 4 General] kn100:
As if I needed another reason to love this thing. Possible LTE?!
[Nexus 4 General] milkisgood123:
It seems antenna, and everything considered, the best bet this chip can provide for us is when T-Mobile releases LTE on Band 4 the Nexus 4 will theoretically support it as it currently supports band 4 LTE.
[Nexus 4 General] Imppy:
This is BIG

Come on XDA developers do what you are good at and hack the damn thing to provide LTE connectivity
[Nexus 4 General] richteralan:
No it's not a problem.

You know you can also look at the pictures and google the code printed on the chip and see yourself.
[Nexus 4 General] holycrap8:
Excellent point. That would be a great place to start. This would really make the phone a huge upgrade from the gnex, assuming it gets added into aosp of course.
[Nexus 4 General] heat361:
Wait this is an all in one lte chip that supports multiple carriers?
[Nexus 4 General] zopiclone:
I'm quite happy with Wind. For around $44 a month with taxes I have unlimited calling/texting/mms in Canada and the USA, unlimited data (they might throttle you after 5 GB), and voicemail. I've had a couple occasions where I've noticed that I had no service for a short period of time, but it's not a regular thing. I've found the coverage is good around Vancouver, and the roaming rates if you're traveling out of their coverage zones for calls/texts aren't bad at all. One thing, make sure you never enable data roaming. The rate are absolutely atrocious and could easily bankrupt you. If you do travel and need data it's always possible to grab a pay as you go sim from another provider for the duration.

All in all, I would recommend them.
[Nexus 4 General] thelivingdread:
You're right. I read off the numbers from the chip and transposed two numbers when typing it in which lead me to ask the question. I see my error now. Hopefully Google will release a firmware update soon or at least the drivers will be leaked.
[Nexus 4 General] Oriserzz:
Awww, there is no band 3!!!!! :crying:
[Nexus 4 General] James.UBC:
According to anandtech "it does have the hardware for [LTE] on bands 4, 2, and 1 in theory."
[Nexus 4 General] estallings15:
This probably has to do with Google's rollout of a mobile network with Dish. Surprise! LTE!
[Nexus 4 General] heat361:
I just googled the chip and this is one hell of a chip it does support multiple lte bands and u believe the only thing holding it back from being released is the proper drivers for it. Maybe Qualcomm is not finished finalizing the drivers
[Nexus 4 General] haloimplant:
Up here the big providers are using band 4 AWS for LTE already but I really doubt that it can be 'hacktivated' on these Nexus 4 units. Besides any hardware that might be missing, LTE is an expensive feature Qualcomm will likely have it locked out if it has not been paid for.
[Nexus 4 General] luckylui:
LTE maybe for AT&T customers?

---------- Post added at 09:06 PM ---------- Previous post was at 09:05 PM ----------

Great find OP. I thank you for this. :D
[Nexus 4 General] dust906:
my guess is that LG doesn't want to get sued by samsung........ or someone who wants to sue over LTE
[Nexus 4 General] tjex:
According to the article"There are three Avago power amplifiers, and an RFMD switch at left. We can see Avago A5505 (Band 5 - UMTS), A5704 (Band 4 - LTE/UMTS), A5702 (Band 2 - LTE/UMTS), and at far left an RFMD 1156 single pole 5 throw switch hiding under a lip of the EMI can."

So 2, 4 and 5

http://www.anandtech.com/show/6440/google-nexus-4-review/7

Unless I'm mistaken?
[Nexus 4 General] Imppy:
is this the chip the same as LG Optimus G?
[Nexus 4 General] princebama:
Would love if this works on AT&Ts LTE since it's coming to Colorado pretty soon
[Nexus 4 General] 0.0:
will tmobile be supporting one of those bands?
[Nexus 4 General] tjex:
Here is a list of all the bands currently in use: http://en.wikipedia.org/wiki/List_of_LTE_networks

Here is the list of the bands the phone can use: http://www.anandtech.com/show/6440/google-nexus-4-review/8

Hope that helps ;)
[Nexus 4 General] milkisgood123:
T-mobile will be releasing their LTE next year on Band 4 which is currently supported by Nexus 4 with antennas and everything taken into consideration. Just needs to be hacked with drivers.
[Nexus 4 General] Blazing angel:
My bet is the chip doesn't have the required connections for lte soldered on/connected at the manufacturing stage. I mean, what could google possibly gain from hiding this?
[Nexus 4 General] stormtroopercs:
licensing issues?
[Nexus 4 General] James.UBC:
rogers/bell/telus all carry band 4 LTE in canada!

hopefully we can get something goin :D
[Nexus 4 General] Topgun966:
It looks like this chip DOES support 7 bands of LTE. Also, this could be why Google is delaying N4 drivers in AOSP.
[Nexus 4 General] stormtroopercs:
i hope.
[Nexus 4 General] Tomatoes8:
Probably cost more to change the factory to make the same cpu without an LTE chip.
[Nexus 4 General] mengwu:
I think if anything, it's just disabled by the software. I mean if the chip is already purchased and installed, why not allow the option to enable it via software later? If the chip isn't connected hardware wise, you lose that option completely.
[Nexus 4 General] stormtroopercs:
we'll see. i have high hopes lol... just like i thought i would have my nexus 4 right now..
[Nexus 4 General] mengwu:
You can SAVE tons of money by not purchasing the LTE chip and just leave a blank spot there. Like what google did with N7 mb, where there is a spot for back camera.
[Nexus 4 General] stormtroopercs:
then is it meant to be a big surprise? where people will all "praise" google since they have lte on the nexus 4? and take some heat off of the ordering problems..
[Nexus 4 General] Blazing angel:
Wait what?
[Nexus 4 General] stormtroopercs:
lol yeah i thought the same thing :p
[Nexus 4 General] Tomatoes8:
Not really. The tegra 3 needs a separate LTE chip, that is why you can save money using the tegra 3.

Qualcomm chips are all in one integrated solutions, so it would probably cost more moving back in forth between an Optimus G/Droid DNA/Padfone 2 factory to a Nexus 4 factory. Imagine paying your factory workers and IT guys overtime every every time you have to switch from the Nexus 4 to every other phone that uses the same SOC.
[Nexus 4 General] milkisgood123:
It's possible that T-Mobile will support LTE on the Nexus 4 because they are the official (contract) carrier for the Nexus 4. Fingers crossed!!
[Nexus 4 General] Tomatoes8:
Simple. The LTE chip is integrated into the SOC and all of their factories are most likely set for the chip with LTE integrated for the Padfone 2, Droid DNA, and Optimus G orders. Changing one or two factories just for the Nexus 4 isn't worth it compared to just mass cranking out one chip solution for all of your orders. The parts that make the LTE radio is most likely definitely much less than labor and restructuring costs, especially considering the volume.
[Nexus 4 General] mengwu:
Hmm, since it's an integrated chip, does that mean the LTE functionality cannot be disable via hardware?
[Nexus 4 General] nikufellow:
OMG ! Unbelievable :D

But curious why they've disabled it ! Hope Google comes out with an official statement fast !

Btw hurry geeks now is your chance to ride new heights of fame - the one who manages to get this unlocked and working (if that's possible) will be featured in most tech blogs and magazines out there like - 'XXX from xda unearths disabled LTE in Nexus 4' ! :eek:
[Nexus 4 General] ManOnTheMoon:
I will donate $100 to the first guy who does.

Sent from my Nexus 4
[Nexus 4 General] James.UBC:
maybe not $100 but definitely >$20 from me too!
[Nexus 4 General] joackie27:
Looks like this LTE chip can't be use...

http://www.androidpolice.com/2012/1...-band-4g-lte-chip-that-you-probably-cant-use/
[Nexus 4 General] stormtroopercs:
they don't know.... they are just saying it probably can't be used..
[Nexus 4 General] @rbiter:
it needs an antennae. there is a spot for another one but no antenna in the ifixit breakdown. i do believe all the radio generations need a separate antennae. the 2g, 3.5g in the nexus probably has two antennaes. if the lte can be enabled, we would probably have to hunt for the antennae that can fit in the hidden hole in the breakdown.
[Nexus 4 General] joackie27:
Did you even read this?

"First, there's no guarantee that the device even has an antenna that supports this radio. Should that not be an issue, iFixit found no LTE power amplifier on the board. That's the part in a phone that takes electricity and turns it into radio waves."
[Nexus 4 General] milkisgood123:
I question this person's technical knowledge. A power amplifier is NOT responsible for creating radio signals. Instead, it does exactly what it name suggests, amplify voltage. A transmitter would create the actual signals.

Again, we will see with all this. It's still too early to tell and never say never in the world of development.
[Nexus 4 General] maniacdevnull:
Two things to consider:

The iFixit guide also shows a hidden, unused antenna connector inside the phone. Maybe the LTE chip is soldered on, but there isn't an antenna to support it? There's also a big chance that this is all part of the normal Qualcomm chipset, and while the chip can do LTE, the other support circuitry isn't there. Kinda like how a laptop maker might use a chip that supports 4 USB ports but only include 2; it's easier to just use the same chip they already have available to them and not enable all the features then search around for the 'perfect fix' part.

Also, if this device can do LTE, there's no way it will ever actually do so without approval form the FCC. If the FCC didn't certify it with LTE, it seems unlikely that it would ever be able to add that approval after the device is released.
[Nexus 4 General] flafla:
damnit T__T i guess it won't have LTE unless people add some antenna attachment to it or something lol
[Nexus 4 General] bozzykid:
Does anyone here ever read iFixits tear downs? Chips are found all the time that are never used or available to be used. No way Google just "disabled" this chip in software. If LTE was ever going to be available, Google would of announced it.
[Nexus 4 General] mesasone:
The problem with adding LTE support is that the LTE networks are currently closed/proprietary AFAIK, so the drivers to use that portion of the hardware can't be included with AOSP by definition. And of course running AOSP is what makes a Nexus device a Nexus.

I believe Google also jettisoned all the CDMA code after the Verizon Galaxy Nexus fiasco for the same reason.

---------- Post added at 10:49 PM ---------- Previous post was at 10:40 PM ----------

You need the power amp to be able to transmit long distances such as on a cellular network. And looking at the specs for the PA chip on the Nexus 4 it looks like it would support LTE in bands 1 and 5.
[Nexus 4 General] boogieroc:
Maybe the chip was disabled because tmobile network isn't up yet. Look at the sg3. I hope when tmobile gets Lte the n4 can take advantage of it.. Maybe, possible
[Nexus 4 General] joackie27:
Two words, FCC Certification. I think you've hit the nail on the head. :good:
[Nexus 4 General] enviii:
Thanks for killing all the hope I had of ever using LTE on this phone.

jk. I was prepared for no LTE when I hit that add to cart button.
[Nexus 4 General] abe in space:
Don't forget, the LGOG also has an antenna for Korean television. Maybe it's for that.

---------- Post added at 12:06 AM ---------- Previous post was at 12:05 AM ----------

Speaking of that, though, am I the only one who's super glad this didn't hit the Android blogs like a week ago?
[Nexus 4 General] ptesmoke:
depends if this amp you speak of is in the transmitter circuit.
[Nexus 4 General] riko540:
Perhaps however you won't get Verizon's 3g. Not that it really matters now lol.

Sent from my ADR6300
[Nexus 4 General] James.UBC:
nexus 4 revison 1: 16/32 gb and LTE ;)

I wouldn't even be mad
[Nexus 4 General] florian3000:
I'm just interested if it would work in Austria with the band frequencies provided.
[Nexus 4 General] deltatux:
Basically this. Also, there's FM radio in basically all the WiFi modules for cell phones these days but Google disables them by not attaching the attenae for them. From Nexus One onwards, all the WiFi modules came with FM radio and GPS. It's not new that Google have been disabling radios even though it's there... if they can do it to FM radio, what makes it less likely they did the same to the LTE radio?

What makes it more surprising is if they included the LTE radio, why didn't they just install a Qualcomm Snapdragon S4 MSM8960T instead of using a multichip configuration by using the Qualcomm Snapdragon S4 APQ8064 and pair it with a MDM9215M radio and that LTE chip. It would make more sense to use the integrated solution instead of the multichip solution...

deltatux
[Nexus 4 General] Ameri-CAIN:
I think that inclusion of the LTE radio is more of an LG decision than a Google one. LG manufactures the phone, and they procure the components. It was probably cheaper for them to go with the Multi chip as they already scored a sweet deal on bulk orders between the Optimus G and the Nexus.
[Nexus 4 General] aoprea:
has enyone see something about FM Radio chip ?

is possible ?
[Nexus 4 General] SpartusTana:
I personally believe that Google has simply future-proofed their device. Yes it's disabled now and there's no FCC clearance on the radio, but it doesn't mean the device wont get that in the future. With AT&T already rolling out LTE and T-Mo shortly behind (Looking at a 2013 LTE rollout according to the letter I got in the mail), it's not too much of a stretch to think Google would be this clever.
[Nexus 4 General] BBM-Lee:
Looks good...

Looks like a promising future... Without the power amplifier it does seem like it's a slim hope...

But, then again... Why do we need LTE / 50Mbps+ uploads? If only LTE supported 3g uploads with 4g downloads (like satellite downloads with dial-up uploads).... wouldn't need that power amp to send a high-frequency high-power signal back to the tower...

In the end, I'm quiet happy with just HSPA+ -- will probably give me a lot better battery life :)
[Nexus 4 General] Unknown33:
All right lets see if I can work through this. I've been reading a lot of FCC documentation and going through some specs of the different chips.

The Qualcomm WTR1605L is a 7 band RF chip supporting three below 1 GHz, three higher bands, and one very high band. So this includes pretty much all bands currently used including the new LTE bands.

The Avago ACPM-7251 is indeed a power amplifier. Supporting Quad Band GSM/EDGE (GSM850/900, DCS1800/PCS1900) and UMTS Dual-Band (Band1 – UMTS & LTE and Band5 UMTS & LTE)

Notice it said LTE a few times in there.

There's some other crap I'm still looking through but the major point I'm getting at is that it looks like that chip isn't just sitting there doing nothing. The FCC doc ( http://apps.fcc.gov/ecfs/document/view?id=7021921420 ) Seems to suggest that the chipset that includes this WTR1605L is a new format they are using to try and futureproof phones from some possible "carrier aggregation" (I'm trying to wrap my head around all this so give me some slack here)
[Nexus 4 General] BR_Impulse:
In the Anandtech.com review of the iPhone5 and such, it was shown that apparently the iPhone5 in LTE mode lasts a lot longer than in 3G mode. Why? Because the fast data rates allow it get its data quickly from servers, finish loading the page to ramp down its CPU and radio power a lot faster so the phone sits in its idle state a lot more of the time. In 3G, it ends up keeping the processor and such at its high power state while it waits for data from the network. Here's the link: http://www.anandtech.com/show/6330/the-iphone-5-review/13. Specifically: http://images.anandtech.com/graphs/graph6330/50475.png

So basically, if done right in software and with good signal, LTE can save you battery life in the long run. Doesn't seem to help the S3, though they are using different SoCs and such.
[Nexus 4 General] Rusty!:
Did you even look at the article? It's a completely separate I/C to the GSM chip or the SoC.
[Nexus 4 General] abe in space:
This isn't necessarily true; some LTE devices do get worse battery life than their 3G-only counterparts, but others get better battery life with LTE (like iPhone 5) because the higher download speed allows them to reduce power consumption sooner.
[Nexus 4 General] KairosDev:
Google won't want LTE

I don't think Google will enable it, but some carriers will or ROMS (maybe CyanogenMod?)
[Nexus 4 General] limpopo:
Sorry, people, GET REAL.

This is such a pathetic thread.

Google will not enable LTE on this phone, period.

It was basically known that MDM9x15 and WTR1605 would be used in the Nexus 4, simply because it is a power-efficient solution. It is also the hardware used on the Optimus G, which is essentially the same phone, but crippled by Google to allow a bit of a market segment for the Optimus G and other high-end phones.

See http://xdaforums.com/showthread.php?t=1964080&page=37

Limpopo:

"

1. LTE

(a) Using Qualcomm's latest modem, MDM9615, you can support a lot of air interfaces, especially if you pair it with the WTR-1605 transceiver (that wasn't quite ready in sufficient volume for iphone 5). Read Anandtech for an explanation, and also look at what Nokia is releasing with the 820 and 920. Multiple LTE band support is not that big of a deal, and the bill of materials for LG/Google would have made no difference to them - they are probably using this stuff semi-crippled anyway."
[Nexus 4 General] ChongoDroid:
This just in!

Nexus 4 has a hidden SD card slot!!
[Nexus 4 General] Peyman_dinani:
What you guys are forgetting is that The big portion of LTE cost is not because of Hardware but because of patents. LTE patents are the things that make LTE so expensive. Hardware is a small portion of it.
[Nexus 4 General] Cactus42:
Good to see you're keeping with your perceived tone of the thread then.

It's safe to say most of the people here don't give two sh**s whether Google enable it or not, that's irrelevant if the dev's work out it's only software limiting it's use.
[Nexus 4 General] Venekor:
It's probably missing some bit of hardware that makes it work anyways, if you want LTE then buy an LTE phone.
[Nexus 4 General] crazyfool_1:
This. This is XDA, if the only reason this doesn't work is software no doubt LTE will be enabled on this device.