ingenium

If you are using Sprint, you probably don't want band 26 anyway. It is pretty terrible.

Depends. Is there a modem capable of TDD-FDD CA yet? Sprint has turned on TDD-FDD CA, so you'll get 25 or 26 as primary carrier and 41 as secondary carriers (I've gotten 4xCA with this). 25+26 is also possible, but I haven't seen it in the wild yet.

Generally it's only in areas where you'd be on B25 normally. If B41 is "usable" as PCC (and oftentimes it isn't actually...), then they aren't putting people on B25 yet.

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How exactly are you finding this out?
Was it from the February Pixel update?
How do you/we know when any of the combos go "live" on Sprint?
Thanks for the info!

As I've said in multiple previous posts, you need root with the pay version of NSG. That's the only way to get it on a Pixel.

It was either pushed in the Feb OTA, or Sprint pushed the config change. For what it's worth, the modem is identical in Jan and Feb OTAs (same sumcheck).

These are all "live", in that the phone will seemingly attempt to use them. The only additions here are domestic roaming combos. No international combos are present.

Interestingly, it has AT&T bands 14 and 30, but no 66.

No B71 for T-Mobile.

And it has B13 (Verizon) combos. Maybe a sign that Verizon LTE roaming is coming?

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A ton more CA combos just got enabled on my Pixel 4 XL. Looks like for domestic roaming. No band 7+7 for example (which it can do, and which I've seen in Spain).

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[mention=21091]ingenium[/mention] posted that the Pixel 4 is capable of these CA combos in the Pixel 4 thread. Can someone please confirm if these are also available on the 3a and 3a XL? I need to get a new phone for my Dad. Thanks

The 3a uses the Qualcomm X12 modem. The 3 uses the X16 modem. The X12 supports fewer MIMO streams and fewer aggregated carriers (3xCA vs 4xCA I believe). https://en.m.wikipedia.org/wiki/Qualcomm_Snapdragon_LTE_modem

Both are officially listed as capable of 2xCA UL if the RF front end is in place, but it doesn't say which bands. So it could be something like B7+7 only and not B41. I know with certainty that the 3 does not do B41 UL CA on Sprint. And right now that is the only UL CA combination possible, and likely will be the case for the foreseeable future.

I'd say it's fairly unlikely that the 3a can do UL CA, since it's a cheaper device with a lower end modem. Unfortunately no one is going to be able to confirm unless they have the paid version of NSG, and I only know of one other person on here with it, and he doesn't have a 3a. The engineering screens on Pixels don't work for CA. Your only other hope is to look at the FCC filing and see if it says it there.

If you absolutely must have UL CA, go with a Pixel 4 or a current generation Samsung device.

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Are you able to confirm if the Pixel 3 and or 3A is capable of these as well? My Dad is due for a new phone!

I no longer have access to a rooted Pixel 3, so I can't check. It also requires the licensed/premium version of NSG to view the signaling message that has the CA combos.

Your best bet is to check the FCC filings for the 3. I think the stated CA combos for the 3 and 3a were posted earlier in this thread, so you can just use those if you don't want to dig through the filing. The 3 definitely can't do UL CA, but can do some FDD-TDD (maybe with only 2 B41 carriers?). 3a is the same, with some FDD-TDD combos, but I'm not sure about its UL CA status.

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Mike, did you ever figure it what was causing network information not to update on new LG devices? It only refreshes on launch or when certain changes happen to the connection. SCP has been basically useless to me for the past 6 months [emoji24]

Do you have it exempt from battery optimization? If not, try that

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For the three or so years we have been hearing them speak of band 30, then one touch upgrades and now Firstnet there sure is a lot of that exact 2/12 only combo on their network in large swaths. Slow rollouts are not exclusive to Sprint.

I think they do it based on demand and usage. The att sites with that config seem to not be congested. Meanwhile, on higher usage sites (for example ones in Pittsburgh), they have absolutely everything deployed. It's kind of a smart move. B2 and 12 provide good coverage, and if the capacity isn't needed, why spend money on it and provide the backhaul?

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I became a bad man and switched my work line from T-Mobile to my uncle's ATT account. I've made some interesting discoveries. Turns out that when they say "AT&T may temporarily slow data speeds if the network is busy", that means you're deprioritized 24/7. I've also found a site here in town that has no HSPA/HSPA+. It's LTE or nothing which I thought was odd. 

It's definitely on a tower by tower basis. My parents are using an unlimited iPad SIM in an LTE modem (depriorized after 22 GB), and they usually push 250 GB/month on it. On just the B2 carrier, no CA (I'll see 2+12 CA right after it connects to the network, but then it drops 12 and never comes back). They consistently get 20 Mbps, and up to 30 at off peak hours. But they're also on a rural tower with light load (tower is still only B2 and 12).

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No 25+41 upload?

25+41 upload isn't on any phone. 41+41 just came out with the latest Qualcomm modem I believe. 25+41 download is only now rolling out.

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I've confirmed in NSG that the Pixel 4 has B41 UL CA and that it works.

These are the CA combos that the device reports when it connects to Sprint.

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I didn't even know it supported band 14. I'm sure B13 will not stay that way if the merger passes since TMO will end up with that band in Puerto Rico.

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Speculation is that it's some Qualcomm limitation or something, but yeah it's odd.

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This is for the one plus 7 pro?

 

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Yes. The McLaren version I believe. Interesting that it disables B13 and B14.

 

https://fccid.io/2ABZ2-EE143

 

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This recently appeared on the FCC site.

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Yeah, I started noticing it around Thanksgiving. I did a 300 mile round trip for work last week and my AT&T phone had 2000 points and my Sprint phone had 200. I have the minimum recording interval set to 1 second on both. Before both would have had about 15,000-20,000 for that trip. I think Mike has said some of the recent android updates are restricting background processes. I wonder if that is affecting the app. On my trip to Baltimore I've keep Cellmapper open with screen on but haven't seen much of a difference that way either.

I've noticed it too. It seems to be more picky about a GPS signal now. For example, if I'm driving and my phone is in my lap, it won't record as many points as it does when it's sitting upright in my cup holder.

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I was disappointed that while connected to wired Ethernet backhaul that volte would no longer work. Bummer.
 
I had to call customer support and have them reset a few things to get it to reconnect to lte so I could get volte back.

VoLTE doesn't work if it's not using LTE backhaul? That would be really surprising if true.

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Interesting, Thanks for sharing [mention=21091]ingenium[/mention]
We just moved and the new house merits a MagicBox. I have the Gold model.
We have gigabit (true 1000up and 1000down) ethernet and also observed a maximum DL speed of approx 60-70mbps IIRC w/ ethernet backhaul on the MagicBox Gold. 
Shame because I see regular DL speeds of 100-140mbps on Sprint LTE in the DFW area, including within .5 miles of my home. It was nice to have a fallback connection of 100+mbps at our old address on Sprint LTE. I have since left the MagicBox on LTE backhaul and seem to get about 40mbps max in limited testing. 
...You would think the MagicBox could output a higher speed when fed with 1gbps wired connection. 
edit: I could also try wifi backhaul, but I would guess it provides an even worse experience compared to ideal situation ethernet backhaul should provide. 

Yeah it should be able to go faster, but honestly does it really matter? On macros and SCs, the added speed is more about the capacity to handle more users. But on a MB where you'll likely only have a couple users (or at least only a couple simultaneous users), I don't know why faster would make a difference on a phone. I doubt anyone would notice 80 vs 140 Mbps outside of speed tests.

Now that I think about it, I wonder if something internally is limited to 100 Mbps. If it was, that, combined with the ipsec VPN overhead, might explain the ~80-85 Mbps max speed.

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https://dcp2.att.com/OEPNDClient/

It is a 30 day unlimited data session. You can setup autopay. 22Gb deprioritization. 35 bux plus taxes, fees.

Oops, typo on my part. I meant as postpaid. I have that prepaid plan now.

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Netgear Nighthawk>ATT Tablet plan(Post paid is 20/mo prepaid is 35/mo)>\
                                                                                                                                            EdgeRouterX>Your Router 
                                                                                                       Spectrum Router>/                                                                                                        

This is your easiest, most affordable, off the shelf and mobile setup.

This is the setup that I use. Slow DSL as backup to AT&T LTE (DSL is also used for DNS and wifi calling). Nighthawk as the router.

How do you get the iPad plan as prepaid? Is there any different other than being prepaid and the price? Contract?

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It would be nice if the Airave 4 had the option to switch the band between 25 and 41. [mention=4387]lilotimz[/mention]is this something that's currently possible?

No, the radio is only capable of B41. It can be resolved though if they quit using it he Magic Box config for the Airave 4. Right now, the 4 uses the same earfcn as a Magic Box, and uses the same availability restrictions as a result. And in some markets, Sprint doesn't have enough spectrum for 4 or 5 B41 carriers (macro + SC + MB). But they always seem to have enough for at least 1 B41 carrier. The Airave 3 used the same earfcn as the first B41 carrier on macros, which allowed it to be used pretty much anywhere.

If Sprint setup a separate Airave 4 config like they did with the 3, this wouldn't be an issue. They could also edit the current Airave/MB config to just use the macro earfcn when non-LTE backhaul is used, but I'm not sure if the config actually allows that type of setup.

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What is "no B26 + 1x B41" ? Specifically the "no".
Which "upload" aggregations is the Pixel 4 capable of? Or were you speaking of uploads only?

Sorry, I edited the post and left in the 1x (meaning single carrier) by mistake. It can't do B26+41 at all.

CA combos:

2xCA: 25-25, 25-26, 25-41, 41-41
3xCA: 25-25-25, 25-25-26, 25-41-41, 41x3
And 4x and 5x CA B41.

2xCA upload on B41.

Like the Pixel 3, it's also limited to 10 MIMO streams. So you can do 4x4 on 2 B41 carriers, but only 2x2 on the last one. Likewise, with 5xCA B41, it can only do 2x2 per carrier. No 4x4 at all.

No idea when Sprint will push the update to enable FDD-TDD. Sprint Speed [emoji769]. Could be next week, could be 6-12+ months. Magic Boxes and Airaves for example have been capable of VoLTE for 11+ months, just waiting for Sprint to whitelist them. Things can be ready and working but just sit for a year for seemingly no reason...

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Won't the option(s) to enable be in the *#*#DATA#*#* menu on the Pixel 4?
This is from my Pixel 2

No. The menu is exactly the same on the 4. You can enable and disable individual bands, but not carrier aggregation combinations.

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Sprint must have it enabled it, at least, in the Denver market???
[mention=4387]lilotimz[/mention] ??

It's not enabled on phones. He had to force enable it on his phone. Can't do that on Pixels. So we have to wait for Sprint to push the network config update to devices to tell them they can use it.

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Apparently the Pixel 4 is capable of B25 + 2xCA B41 (3xCA total), no B26 + 1x B41, and 2xCA upload B41. So whenever Sprint enables it, it should work.

 

(Edited with correct CA combos)

 

 

 

 

How/when can I find out [emoji3][emoji3][emoji3]

Speed test when Sprint enables it, or with NSG once Sprint enables it. Or possibly FCC docs, but I don't know if they publish that. Lilotimz would know.

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It's the same SoC and modem, so yes it's capable, unless Google did something with the RF front end to disable it.

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