Develop Bugs

Enable LTE bands in US

So I purchased this phone while in the UK because it looked like a solid item. Unfortunately, I neglected to realize that the default LTE bands were EU and the phone will not work in the US other than on 2G.
In the meantime... I've spent the entire day setting up the appropriate tools to modify the NV values in 6828/29 to enable the appropriate LTE bands (2,4,12) for my carrier here in the US. I've wrote these values successfully, however, no LTE. These are the only two NV values I've modified.
Is this possible? Or is there something I'm missing here and the phone chipset/radio is not configurable in this manner and requires either some other attention, or that I'm screwed.
Thanks for any insight.

Try *#*#4636#*#* which should show you network types available and if your lucky set the one you want

I see that LTE is an option here; but the radio picks nothing up. This phone comes from the factory stamped on the box with LTE bands 3/7/20 enabled.
Perhaps I should rephrase the question:
Does editing the NV values do anything, or is the radio hardware limited to specific frequencies? Or is there a way to flash a ROM or something that's not editable (i.e. via QXDM) to fix this problem? It seems like the chipsets are all the same from phone to phone, so something 'soft' must be limiting the band selection.
I'd hate to have to buy another phone simply for the fact I'm limited to 2G connectivity. I love how the government and cell phone manufacturers have the consumer's best interest in mind.
robin0800 said:
Try *#*#4636#*#* which should show you network types available and if your lucky set the one you want
Click to expand...
Click to collapse

rmbanas said:
I see that LTE is an option here; but the radio picks nothing up. This phone comes from the factory stamped on the box with LTE bands 3/7/20 enabled.
Perhaps I should rephrase the question:
Does editing the NV values do anything, or is the radio hardware limited to specific frequencies? Or is there a way to flash a ROM or something that's not editable (i.e. via QXDM) to fix this problem? It seems like the chipsets are all the same from phone to phone, so something 'soft' must be limiting the band selection.
I'd hate to have to buy another phone simply for the fact I'm limited to 2G connectivity. I love how the government and cell phone manufacturers have the consumer's best interest in mind.
Click to expand...
Click to collapse
It should be hardware limitation of the chipset. LTE band support can be problematic even on high-end devices (there will be at least one band missing).
If you are in the US, why not take advantage of the Blu R1 HD deal? It's not very helpful but it's something

rmbanas said:
So I purchased this phone while in the UK because it looked like a solid item. Unfortunately, I neglected to realize that the default LTE bands were EU and the phone will not work in the US other than on 2G.
In the meantime... I've spent the entire day setting up the appropriate tools to modify the NV values in 6828/29 to enable the appropriate LTE bands (2,4,12) for my carrier here in the US. I've wrote these values successfully, however, no LTE. These are the only two NV values I've modified.
Is this possible? Or is there something I'm missing here and the phone chipset/radio is not configurable in this manner and requires either some other attention, or that I'm screwed.
Thanks for any insight.
Click to expand...
Click to collapse
Hi rmbanas, how do you did it? I followed the guide from here but QPST does not recognize my device. Now Im stuck.
Im speaking from Brazil and Im trying to enable some LTE and GSM bands.
Ive unlocked the bootloader, flashed the CyanogemMod 13, released the developer settings (so as USB debbuging, etc, etc).
Certainly, it is a problem with the drivers, but Ive tried with a lot of them and still... nothing.

SM-G960F/DS on Verizon in the US

Hi all,
I have in my hands an unopened G960F/DS. I was considering this phone to replace an old model, it's long due. I thought I did my homework and was able to determine this phone worked on Verizon in the US, but a serious note on the box and further research suggests I may have been wrong. Although it would be nice to have new hardware, I am replacing the old one almost entirely out of a desire to flash a custom ROM on it. I was under the impression the lack of CDMA support wasn't a big issue given that Verizon (and everyone else) is phasing out CDMA and the phone still had LTE. Thus my choice of the F/DS. I am informed that opening the box and returning the phone will incur a charge, while keeping the box sealed and returning it will not. I am trying to decide to continue forward and test on Verizon's network here in the US or just return the thing, the choice lies in compatibility with this network. So now I get to play a guessing game.
I find myself in 4G LTE areas most of the time. I want to use data and make voice calls.
This 2-post thread suggests not much can be done:
https://forum.xda-developers.com/galaxy-s9/help/sm-g960f-verizon-network-t3856443
This guy demonstrating slower speeds, which I'm not too concerned about, but also HSPA+ in an area he usually gets LTE. In the video description he says after applying a software update it works 'fine':
https://www.youtube.com/watch?v=pkNXCK2iVO8
This site lists some band compatibility but doesn't say anything about not being able to use it with Verizon:
https://apn.gishan.net/en/apn/verizon/samsung-galaxy-s9
This site also lists band compatibility but warns about Verizon's strict device policy:
https://www.frequencycheck.com/carr...e-samsung-star/verizon-wireless-united-states
Is there any hope to use an unlocked S9 on Verizon in the US? I see this going one of several ways: 1) Everyone works out and I can make calls and use data and there are no issues and rainbows and unicorns 2) Data in certain places, no voice because something something "VoLTE" 3) Absolutely no data/voice whatsoever 4) I switch carriers I return this piece of junk and buy a phone that works. (might coincide with 2/3)
If I end up with (4), how can I avoid this issue in the future? I spent some considerable time deciding on this model, which has the features I want and an unlockable bootloader. Will the S10 have this issue? What about the Note 9? I apologize for the noobposting, and if I missed a thread that answered this question. Thanks for any help you can provide, I sincerely appreciate it.
Edit: This thread asks a similar question but isn't specific and neither are the answers:
https://us.community.samsung.com/t5/Galaxy-S9/Unlocked-galaxy-S9-on-Verizon/td-p/277493

I have been using a G965f/ds on Verizon Wireless.
VoLTE, vowifi, text, and data work after rooting.
Having done a speed test with a U device and on the g965f/ds, the speed I can receive seems equal.
I haven't had issues with making LTE calls in my area.

CynicalHeight00 said:
I have been using a G965f/ds on Verizon Wireless.
VoLTE, vowifi, text, and data work after rooting.
Having done a speed test with a U device and on the g965f/ds, the speed I can receive seems equal.
I haven't had issues with making LTE calls in my area.
Click to expand...
Click to collapse
Thanks for the feedback. Are you based in the US? How did you activate the phone? I found instructions on LTE activation here:
www . verizonwireless . com/businessportals/support/how_to_use/activate_4g_lte.html
And an IMEI checker, which fails when I enter what I find on the box my phone is in:
www . verizonwireless . com/od/prepaid/bring-your-own-device/#/checkDevice
Edit: It also looks like they have a second page that checks IMEI (this also fails for me). Can you tell me what either of these pages say when you enter your IMEI?
www . verizonwireless . com/onedp/byod#/

I reside in the US.
The imei of my g965d/fs failed when inputted in to their system;however, the SIM is all that's needed for Verizon wireless to work on it. Initially, though, you might need to insert the SIM card into another imei Verizon wireless compatible device only to allow the system to have that imei in the system for your number. Since, you already have vzw, I'm assuming you already are activated on it with a device, so moving sims is the next step.

Thanks for your input. Anyone else have experience with this device on Verizon's network?

I could have written this exact post.
jmtroth said:
Thanks for your input. Anyone else have experience with this device on Verizon's network?
Click to expand...
Click to collapse
I am trying to do the same thing with the same model Note 9, SM-N960F/DS. I was told by Verizon Level 2 tech rep that simply installing an activated SIM would make the phone work, obviously 4gLTE only since there are no CDMA bands. He checked the 4 bands Verizon uses for their 4gLTE and the F/DS model has all 4 of them.
I am in the same boat as you though. IF I try it and it doesn't work I have to return and lose $125 or switch to GSM network (AT&T or TMO) I am also trying to decide whether to take the gamble. This Level 2 Tech guy didn't mention anything about having to root the phone.
I would also like to know about the advisability of attempting this. I thought I read somewhere that this phone won't have any warranty in US anyway but I am not 100% sure about that. Sellers seem to want to gloss over that issue.

I'm very very interested in this

to put this to bed, you cant use any F galaxy phone on verizon and get full usage. vzw is a CDMA based carrier whereby voice is transmitted primarily via CDMA and data over GSM (which includes voLTE, obviously). The F model do not have CDMA radios in them. You CAN get data to work and therefore voLTE as long as you can flash the vzw CSC to get the phone to install the voLTE app. Long story short, dont try it. Its a fruitless endeavor. I mean, do what you want, i guess, but dont expect for the F to work well, or at all on vzw. There is nothing anybody on xda or anywhere can do to alleviate that.

I had straight talk using Verizon towers on note 8, my note 8 broke, I missed flashing custom ROMs, I bought a note 9 n960f, read online it would work too. I inserted sim. Did not get data or calls. Flashed custom ROMs found a lineage is rom that worked with data for like 2 min then quit. I kept Singapore rom csc stock radios I guess from Singapore, guy on here said he flashed Singapore stock Odin flash and ended up making his work but didn't work with my straight talk Verizon sim. My buddy came over and he uses visible network on Verizon towers we popped in his sim and it worked flawlessly on stock Singapore csc/flashed custom rom from xda. I switched, it's cheaper, it works and first month was 5$ no fee to transfer my number over. Visible is great, join a group and it's 25$ a month.

General Post here Radio Software /Firmware Booster info for Pixel 6 Pro

I bought this phone for several reasons, the great Camera, rootability, but Mainly for 5G and faster data. It's Rooted with .037. Since I had my years old sim in the phone all I was able to manage was about 35 Mb/second on 4G. So I headed to the ATT store and got myself a new sim card for it. On the way home I did a speed test and got 75Mb/second, 5G. Great, I thought. So when I got home I wanted to do some speed tests, and it was on 4G. I have an anntlent booster in the house due to having a metal roof. It has the following bands. each can be adjusted Individually:
LTE Band 12 Uplink (698~716MHZ) Downlink (728~746MHZ)
Band 13 Uplink (776~787MHZ) Downlink (746~757MHZ)
CELL Band 5 Uplink (824~849MHZ) Downlink (869~894MHZ)
PCS Band 2 Uplink (1850~1910MHZ) Downlink (1930~1990MHZ)
AWS Band 4 Uplink (1710~1755MHZ) Downlink (2110~2155HZ)
I turned down all the adjustment screws and took the phone outside. It connected to the PCS band 2, 5G. Took it back into the house, it was showing 1-2 bars. So I turned up the gain on band 2. The signal strength jumped up, but the phone instantly jumped to 4G. I thought it was supposed to go to 5G on a strong signal, then fall back to 4g if necessary. I tried *#*#4636#*#* and setting the phone to "nr only", but you night as well piss up a rope, the phone ignores these settings and resets itself to "unknown"
I fiddled with it some more and got a solid 5G icon. But only 5 Mbps download. For a couple hours messing around, and re pointing my antenna to another tower, I finally got a 4G signal on AWS Band 14 with 15Mbps, less than I was getting with my old 4G Sim.
I would like to see this thread developed with better Radio versions, hopefully ones that can be actually locked to what they are set on, whether it be those who want to avoid 5G or those who want to enforce 5G. 5G IS definitely faster in my rural area. Software I used to help diagnose this, and cell tower locations: Network cell info (an older version from an old phone extracted with apk extractor because the new one on google play kept crashing) Open Signal, and I tried Network Signal Guru, but it did nothing on this phone. Please post any ideas you may have concerning Radio connectivity, Booster (resetting) better software and firmware, etc.

@GivIn2It I've changed the prefix of this thread from "Development" to "General" as it didn't qualify for the first. Please review the stuck guidances at the top of the forum and do not change the prefix back.
Regards
Oswald Boelcke
Senior Moderator

Does AT&T even have real 5G (NR) deployment in your area? If so, is it NSA? If so, it probably uses B2 as the LTE agg link. According to the site below, ATT is supposed to be on n5/850mhz. You need to find out how ATT handles it's NSA deployment, but I guess you need to have B2 + n5 at a minimum.
US 5G Bands Cheat Sheet: Verizon vs. T-Mobile vs. AT&T
A complete list of US carrier 5G bands, 4G LTE, and 3G for Verizon, AT&T, T-Mobile, and US Cellular. 5G mmW, low-band, mid-band, Sub-6.
www.droid-life.com

Not sure if the Network Signal Guru betas are fully public yet, but they work great with the Pixel 6. No band locking though.
Contribute device capability info if you can to the cacombos site. We won't learn anything about what the Pixel 6 is capable without field testing. There's no documentation or data sheet for the "new" 5123b modem in the phone.

craznazn said:
Does AT&T even have real 5G (NR) deployment in your area? If so, is it NSA? If so, it probably uses B2 as the LTE agg link. According to the site below, ATT is supposed to be on n5/850mhz. You need to find out how ATT handles it's NSA deployment, but I guess you need to have B2 + n5 at a minimum.
US 5G Bands Cheat Sheet: Verizon vs. T-Mobile vs. AT&T
A complete list of US carrier 5G bands, 4G LTE, and 3G for Verizon, AT&T, T-Mobile, and US Cellular. 5G mmW, low-band, mid-band, Sub-6.
www.droid-life.com
Click to expand...
Click to collapse
Thanks for that info. Apparantly, there is some aggregation going on. When the phone switches to 5G, none of the software including the Phone Info page will detect what band it's using. Phone info does show NR Available: True and NR State: Not_Restricted.

LLStarks said:
Not sure if the Network Signal Guru betas are fully public yet, but they work great with the Pixel 6. No band locking though.
Contribute device capability info if you can to the cacombos site. We won't learn anything about what the Pixel 6 is capable without field testing. There's no documentation or data sheet for the "new" 5123b modem in the phone.
Click to expand...
Click to collapse
It looks like my device has already been added to the Cacombos database. I can't find a link to that beta. do you have one?

It doesn't matter if your device is already listed. It's incomplete.
And I don't believe I can share the alphas or betas.

LLStarks said:
It doesn't matter if your device is already listed. It's incomplete.
And I don't believe I can share the alphas or betas.
Click to expand...
Click to collapse
OK, then. How am I supposed to obtain that device capability information to upload to Cacombos, I don't have software capable of obtaining all that information from the phone. I'm willing to share information if you're willing to share the software that can obtain the information.

Please read the Shannon instructions. You don't need NSG or other tools.

The "Shannon instructions", could you be a little less specific?

LLStarks said:
Please read the Shannon instructions. You don't need NSG or other tools.
Click to expand...
Click to collapse
Problem is this, not sure the instructions are compatible:
This works with Shannon modem devices except Samsung Exynos device (eg. Pixel 6 and 6 Pro). For Samsung, please use Exynos internal logging by exposing modem to Scat, ShannonDM or Airscreen. Require root.
Open terminal with adb shell or with Terminal app.
Start logging with in superuser (su)$ su
# modem_logging_control START
Turn on Airplane mode and wait for 5-10 seconds. Turn off Airplane mode.
End logging with command# modem_logging_control STOP
You can find logging file now in `/data/vendor/slog`
Click to expand...
Click to collapse
Instructions under "Samsung device" references OneUI shortcodes which won't work with the PX6/P

It works. The wording is incorrect. It works for non-Samsung Exynos devices.
This is how we gathered the combos until NSG started working.
But the reason why we need more data is because one report from one phone only reflects the country they're in and what their carrier supports.
It's like cellmapper, more data is better.

I think I have figured out the problem. The Pixel 6 Pro doesn't like it when I have all my gains all the way up, at least for 5G. When I set the bands CELL Band 5 Uplink (824~849MHZ) Downlink (869~894MHZ) and
PCS Band 2 Uplink (1850~1910MHZ) Downlink (1930~1990MHZ) to a little over halfway, the phone regularly connects to 5G, especially when downloading. The signal icon on the phone varies between 2 and 4 bars. Download speeds about 2- 15 Mb/s, which is about a third of my better 4G speeds. But I get to see a pretty 5G icon on my Phone. Superb! My next step is to buy a honkin Yagi to replace my pathetic one, and do some signal searching to see if I can pull in that 75Mb/second tower. If that doesn't work, It's just wait for ATT to improve their 5G here, as I have determined that the Pixel 6 Pro is (mostly) working correctly out of the box, it is looking for the best signal, and if that's 4G, that is what it will switch to. Being more of a hardware guy, I think I can accomplish more with external equipment than I can monkeying with the guts of the phone. Rooting was scary enough. But I'm still open to flashing a better radio, when someone comes up with one.

General Enable Google Pixel 6 Pro to use Verizon’s faster C-Band 5G on A12

Update: https://forum.xda-developers.com/t/...rizons-faster-c-band-5g.4391357/post-86406439
This is probably why I get the regular 5G icon and speeds equivalent to LTE. Looking forward to certification...
Google Pixel 6 and Pixel 6 Pro are not yet 'fully certified' to use Verizon's faster C-Band 5G
While the hardware is compatible, Verizon says the Pixel 6 and Pixel 6 Pro aren't quite ready for C-Band 5G, lacking "full certification."
9to5google.com

I can see LAX from my back porch....not sure what 5g I would get near my house at this point

Yeah, that sucks. I hope they figure it out.

Will they be fully certified at some point?

There's nothing to certify. Verizon is full of crap.
The phone doesn't support the band yet and it won't until at least the February update. This is also why AT&T's C-Band doesn't work.

LLStarks said:
There's nothing to certify. Verizon is full of crap.
The phone doesn't support the band yet and it won't until at least the February update. This is also why AT&T's C-Band doesn't work.
Click to expand...
Click to collapse
ATT C Band is working on Pixel phones near ATT C Band areas.

On the Pixel 6?

LLStarks said:
There's nothing to certify. Verizon is full of crap.
The phone doesn't support the band yet and it won't until at least the February update. This is also why AT&T's C-Band doesn't work.
Click to expand...
Click to collapse
Yeah, it will

Software updates for 5G Ultra Wideband-compatible devices | Verizon
Learn which devices require a 5G software update for Ultra Wideband mid-band C-band compatibility.
www.verizon.com
Might have to wait until the 7th

Google is a joke

LLStarks said:
Software updates for 5G Ultra Wideband-compatible devices | Verizon
Learn which devices require a 5G software update for Ultra Wideband mid-band C-band compatibility.
www.verizon.com
Might have to wait until the 7th
Click to expand...
Click to collapse
Great find... it gives me hope

Shipoftheline said:
Google is a joke
Click to expand...
Click to collapse
You know this is on Verizon and not Google right?

Zach Alt said:
You know this is on Verizon and not Google right?
Click to expand...
Click to collapse
Err you know this is also effecting other networks, you aren't the only one effected

Zach Alt said:
You know this is on Verizon and not Google right?
Click to expand...
Click to collapse
I think Verizon takes the longest out of the other US carriers to certify phones, but I wonder if Google was put to the back of the line as they were dealing with bug fixes. I dunno

This is just unacceptable whoever's fault it is. I pay for the highest tier Verizon plan and with the FAA delaying c band for 6 weeks should have given Verizon / Google enough time to certify the Pixel 5/6/6 Pro. I'm so annoyed about this and I live in an area where it is super congested and there isn't that much mmwave.

I don't know how Verizon does everything, but I can speak to their excellent obsessive-compulsiveness with regard to tower/radio management.
Spoiler: Story
In the USA, Verizon, AT&T, T-Mobile, Sprint (before they merged), and American Tower all use(d) the same software to track maintenance/management of their cellular equipment out in the field, which is what ultimately provides service to their customers--the radios, towers, etc. Verizon was quite particular, however. They wanted things almost completely customized, just for them. Things already WERE customized for each of those clients, but Verizon wanted more. They gladly paid for it. All along their long process of "we want to make absolutely sure that this rollout works flawlessly", they even called us out on a very minor web server issue. It wasn't the fancy and expensive software we were customizing even further, it wasn't the databases customized for them, it wasn't the servers customized for them, it wasn't anything you'd expect--it was the website server software and how a particular URL was being parsed. I listened and silently agreed that it was an issue to be corrected. I spoke up, in private, having done some website management for myself, and referenced the RFC (100% coincidence with regard to my name), but I was really impressed by how particular Verizon was being. Interestingly, the other four clients didn't notice, didn't care, or were fine with it. Verizon insisted that it be corrected and changed. It wasn't always easy to do what they asked, from what I understood, but they paid for it, so it was done and everyone was salaried so they worked long and hard. As far as I know, Verizon's requests were never something which was considered a regression or a step in the wrong direction, it was just difficult and/or time-consuming. It was always them wanting things, however minor or major, to be even better than they already were, if possible; if there was an additional price for that change/improvement, they paid it. Having the best software in the world to manage their equipment wasn't good enough for them--they nit-picked and found ways to make it even better.
Verizon may be slow to do some things, and as a customer of Verizon's it does bug me at times, but less so these days. Things like the Pixel 5/6 c-band waiting and some other "this newly-released phone isn't yet certified even though it's 100% compatible" stuff used to be MUCH more commonplace about 5-10 years ago, but now a brand new phone typically works on release day. However, there's a reason they tout being "America's most reliable network". The stuff that's done behind the scenes is meticulously done. I learned to respect Verizon from a more technical and obsessive-compulsive viewpoint after comparing and contrasting the things I knew of and phone calls I was in on. I think all cellular providers have great service. My personal choice will always be Verizon (I used Verizon since 2001, and now Visible since 2019), and I'm happy to wait for c-band "certification" on the Pixel 6, whatever that entails. We'll probably get c-band in one of the coming monthly Android updates, and may even go back to a "VZW-specific" image instead of the unified ones we just switched to.

LLStarks said:
Software updates for 5G Ultra Wideband-compatible devices | Verizon
Learn which devices require a 5G software update for Ultra Wideband mid-band C-band compatibility.
www.verizon.com
Might have to wait until the 7th
Click to expand...
Click to collapse
Looks like we're certified.

Maybe we'll get it Monday after all

Even though it's not C-Band, my Verizon LTE femto is now boosting 5G over NSA whereas it didn't before. Hope this is a good sign.

josh_zombie said:
Even though it's not C-Band, my Verizon LTE femto is now boosting 5G over NSA whereas it didn't before. Hope this is a good sign.
Click to expand...
Click to collapse
I live in an area where I barely get 5G NSA if I stand outside.. max D/L ~ 30 mbps if I'm lucky. Just pulled 112 with femto turned off.

Question 5G status bar icon lying

Is there a way to show the TRUE network type your connected to on the Pixel 6 Pro in the status bar? Mine almost always says 5G, but when I check with SignalCheck Lite, it's actually connected to LTE on AT&T bands B12, B66, etc. I've only ever seen it actually connected to 5G-NR once in SignalCheck. It's quite deceptive of Google to have the phone show your connected to 5G when your actually not.

I'm certain it's due to your carier not Google.

bluegizmo83 said:
Is there a way to show the TRUE network type your connected to on the Pixel 6 Pro in the status bar? Mine almost always says 5G, but when I check with SignalCheck Lite, it's actually connected to LTE on AT&T bands B12, B66, etc. I've only ever seen it actually connected to 5G-NR once in SignalCheck. It's quite deceptive of Google to have the phone show your connected to 5G when your actually not.
Click to expand...
Click to collapse
google is lying to us always... sorry to read that

iRhyiku said:
I'm certain it's due to your carier not Google.
Click to expand...
Click to collapse
It's possible I suppose, but I bought this Pixel 6 Pro as an factory unlocked device and then put my sim card in it. I didn't get it through any specific carrier.

bluegizmo83 said:
It's possible I suppose, but I bought this Pixel 6 Pro as an factory unlocked device and then put my sim card in it. I didn't get it through any specific carrier.
Click to expand...
Click to collapse
I believe your carrier controls how your mobile data is displayed. I'm on AT&T and in certain areas, I get "5G E" even though it's not really 5G at all. I'm just using that as an example.
5GE stands for '5G Evolution,' and it all started with AT&T. The US telecommunications company began promoting the term back in 2018 to separate itself from its competitors in the 5G race. AT&T claimed that with this upgrade, users could reach a network speed of 400 Mbps in areas with coverage.
Click to expand...
Click to collapse

bluegizmo83 said:
It's possible I suppose, but I bought this Pixel 6 Pro as an factory unlocked device and then put my sim card in it. I didn't get it through any specific carrier.
Click to expand...
Click to collapse
it's not where you buy it per say. your sim is tied to a carrier and when inserted in your phone will download some carrier specific software. most carriers 'lie' about networks. AT&T for example calls their latest 4G LTE '5G' on device and in promotional ads. also keep in mind not all 5G is equivalent and all carries denote them somewhat differently.

spinoza23 said:
google is lying to us always... sorry to read that
Click to expand...
Click to collapse
it's not about lying, they just don't want you to be upset about your carrier coverage.

asdor said:
it's not about lying, they just don't want you to be upset about your carrier coverage.
Click to expand...
Click to collapse
Ironically Google is one of the only OEMS (that i know of) that displays a more accurate signal bar, other OEMs boost it.