yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 20 Ultra Questions & Answers] karthigan:
Is it possible to change Bands (LTE & 5G) on SM-N9860 For Rogers Wireless in Canada?

I had a thought:

Currently, the Samsung Galaxy Note 20 Ultra 5G Dual Sim (SM-N9860, Snapdragon) 12GB Ram 512GB has the following LTE & 5G Bands:

4G FDD-LTE:

B1(2100),B2(1900),B3(1800),B4(AWS),B5(850),B7(2600),B8(900),B12(700),B13(700), B18(800),B19(800),B20(800),B25(1900),B26(850),B28(700)

4G TDD-LTE:

B34(2010),B38(2600),B39(1900),B40(2300),B41(2500)

5G Sub-6 FDD:

N1(2100) / 5G Sub-6 TDD: N78(3500),N79(4500)

Now, I am with

Rogers

, which requires the following bands:

LTE Bands:

700 MHz Lower A/B/C: 12/17/13

850 MHz CLR: 5

1700/2100 MHz AWS: 4

2600 MHz IMT-E:	7

1900 MHz PCS: 2

While SM-N9860 supports all

but one

- Band 17 LTE bands - the phone should work almost flawlessly with Rogers in terms of LTE. However, when it comes to 5G, it is a complete different story.

5G Bands:

2600 MHz IMT-E: n38

600 MHz DD	n71

The Canadian (similar to the US) variant of Note 20 Ultra 5G supports the following band:

LTE Bands:

B1, B2, B3, B4, B5, B7, B8, B12, B13, B17, B18, B19, B20, B25, B29, B30, B66, B71

5G Bands:

n41, n66, n71

Questions:

1. Since both are based on the Qualcomm SM8250 Snapdragon 865+, is there a way to change the LTE & 5G bands?

2. Is it hard-coded into the firmware of the 5G modem that is incorporated with the Snapdragon 865+, which makes it impossible?

3. Does that fact that SM-N9860 has a unlocked bootloader and it is rootable, would this help change the bands or matters of the bootloader / root does not have anything to do with the frequencies / bands?

4. If the matters pertaining to unlocked bootloader/rootable , should this question be asked in the thread that Dr. Ketan discusses, with regards to the rooting process?

5. Only reason that I ask for all this is: recalling from memory from earlier days of Note(s) 1 thru 4 - rooting, installing custom rom (thru odin), etc. - I remember coming across a "modem" specific file that gets flashed by odin. Is that still true these days with the newer Note models or it is different?

6. I understand that Qualcomm supplies the specific modem chipset, with regards to 5G - would any of their development tools supplied by Qualcomm can help with changing the bands?

Thanks, just wanted to know.

Thanks.
[Samsung Galaxy Note 20 Ultra Questions & Answers] karthigan:
It seems no one has replied.

Is it really that hard to change the LTE & 5G bands on the SM-N9860 model, given that it uses the Qualcomm SM8250 Snapdragon 865+ chipset (which I am presuming it has the 5G embedded modem)?
[Samsung Galaxy Note 20 Ultra Questions & Answers] JimzFreebies:
5g wouldn't work on N9860 in US/Canada. But some users reported its working in UK.

By the way can you please tell me do you have n9860 hong kong variant? And which CSC it has?
[Samsung Galaxy Note 20 Ultra Questions & Answers] karthigan:
Hi, sorry for the delay.

How do you find out the CSC that is installed on this phone?

My baseband version indicates: N9860ZCU1ATH2 - does that help?
[Samsung Galaxy Note 20 Ultra Questions & Answers] JimzFreebies:
See screenshot(not mine). You will have all 4 TGY or BRI under Service Provider SW ver. View attachment 5099599
[Samsung Galaxy Note 20 Ultra Questions & Answers] PandaxUlt:
any news?
[Samsung Galaxy Note 20 Ultra Questions & Answers] force70:
Years ago we used to be able to play around with enabling bands using something called QPST ( i think, its been awhile) but i have no idea if it will work on new devices.

Id suggest tailoring your search to that and see what state its in.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Use Samsung band selection to change bands

It's an app
[Samsung Galaxy Note 20 Ultra Questions & Answers] and2cs:
tried. it says "change unsuccessful"
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
You have to use the menu to the side and select band selection

Instructions are on the first page of the app
[Samsung Galaxy Note 20 Ultra Questions & Answers] leo5111:
so your saying samsung phones have more bands then it says on the box? and this will allow me to enable them
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Kinda but depending on what carrier you on will determine what bands will work for you.
[Samsung Galaxy Note 20 Ultra Questions & Answers] leo5111:
will be metro prepaid tmobile
[Samsung Galaxy Note 20 Ultra Questions & Answers] karthigan:
For me it lists TGY/TGY,TGY/TGY
[Samsung Galaxy Note 20 Ultra Questions & Answers] JimzFreebies:
Yes because you have N9860 Hong Kong variant.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
These are the bands available for sm_n986u1
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
You pick the lte bands that you want to use... Att/tmoble may have to check the gsm bands for calls.
[Samsung Galaxy Note 20 Ultra Questions & Answers] and2cs:
which one is for 5G?
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Depends on carrier... But I want to say it's the n261 and 260 and anything above 28... I could be wrong... I'm not in a 5g area... But I checked the vZw bands... Idk for other carriers
[Samsung Galaxy Note 20 Ultra Questions & Answers] and2cs:
I think Rogers, Telus and Bell are all using band 66 for their 5G.
[Samsung Galaxy Note 20 Ultra Questions & Answers] hkalltheway:
Any news of this worked?
[Samsung Galaxy Note 20 Ultra Questions & Answers] roryh86:
The Snapdragon N20U has an X55 modem. The hardware itself is capable of supporting all the bands from low-end to mmWave. But each device is restricted based on region of sale.

I'm not sure how Samsung does this, whether its in the firmware/CSC or other coded software as part of the phone build which you cannot change.
[Samsung Galaxy Note 20 Ultra Questions & Answers] jtOttawa:
So do you mean the Samsung Band Selection app is a gimmick and doesn't actually work/do anything?
[Samsung Galaxy Note 20 Ultra Questions & Answers] roryh86:
No, but the Samsung Band app only shows you the factory supported bands. You can't enable USA bands for example on a HK N9860 using Samsung Band app.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
You have to Google which bands your current carrier operates on... For example... VZW uses 2,4,5,13,66...
[Samsung Galaxy Note 20 Ultra Questions & Answers] roryh86:
I was replying about the Samsung Band Selector app. It will only show you the bands that you're phone region is locked to. Incase some people think it unlocks hidden bands, it doesn't.

The bands are programmed by Samsung, even though all the Snapdragons use the same X55 modem. In the past you could hack the NVRAM and unlock all the bands that the modem is capable of transmitting. I'm not sure if it's possible nowadays.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
I have to differ with you on that. See my previous post... Even when you go to the official Samsung page for each device... You still get those bands. The current carrier has to support them. Confused to why you say they all not there.

Just look up the phone on gsmarena... You will see they match.

---------- Post added at 08:58 AM ---------- Previous post was at 08:49 AM ----------

For example... I had the note 8 in Korea and was still able to use it in the USA when I returned. I think I get what you're trying to say but if you're in one country... Why would you need bands in the other if you're not there yet. Once your sim registers. It will only use bands that are available for that carrier. The other bands will not receive a signal.

Example... Here are the note 20 ultra 4g lte

1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

Here are the 5g

2, 5, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-N986U...

Here on VZW... The only ones I can use is 2,4,5,13,66 for 4g and 260 and 261 for 5g... The other bands are still there but I can't use those because VZW don't use them...

Just trying to understand when you said the bands are not listed for you
[Samsung Galaxy Note 20 Ultra Questions & Answers] roryh86:
My Hong Kong model N9860 has the following 5G bands only: n1, n41, n78, n79.

Your USA model has n2, n5, n41, n66, n71, n260, n261

Which means, if you come to Europe (where most of our networks are n78), you won't get 5G signal. And if I go to USA, I can't use Verizon because I don't have n260 or n261 in my model.

What I'm saying is, I can't use Samsung Band Selector to magically give me n260 and n261, it's not possible. Band Selector app will only show me all the available bands to my specific phone. So my phone will never work in USA for 5G.

Even though your phone and my phone have the same X55 Qualcomm modem (which can support all the bands in the world), Samsung have programmed the NVRAM of the modem specific for each region. That's why you have different 5G bands than I do.

Hope that makes sense.

p.s. 4G is different, most phones have all the 4G bands that are used globally. So 4G will work in USA and Korea most likely. Unless you have a really old phone. 5G is still new and it's more region specific.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
I see... But what I was saying is the app may show more that what gsmarena may show... Sometimes what's listed online isn't accurate. They tend to either merge or just go by only one variant.
[Samsung Galaxy Note 20 Ultra Questions & Answers] dublinz:
These 5G bands are used across the world for cellular and IoT applications.

The frequencies used in 5G wireless technologies are categorized into three divisions viz. Sub-1 GHz, 1-6 GHz and above 6 GHz bands.

Lower 5G Bands in sub 6GHz

Country	5G Bands

Europe	3400 - 3800 MHz ( for trial )

China	3300 - 3600 MHz , 4400 - 4500 MHz, 4800 - 4990 MHz

Japan	3600 - 4200 MHz , 4400 - 4900 MHz

Korea	3400 - 3700 MHz

USA	3100 - 3550 MHz, 3700 - 4200 MHz

INDIA	3300 MHz and 3400 MHz

Ireland	3.4 - 3.8 GHz

Spain	3.6 - 3.8 GHz

------------------------------------------------------------------------

Higher 5G Frequency Bands in mmwave

Country	5G Frequency Bands

USA	27.5 - 28.35 GHz , 37 - 40 GHz

Korea	26.5 - 29.5 GHz

Japan	27.5 - 28.28 GHz

China	24.25 - 27.5 GHz, 37 - 43.5 GHz

Sweden	26.5 - 27.5 GHz

EU	24.25 - 27.5 GHz
[Samsung Galaxy Note 20 Ultra Questions & Answers] TP55:
I have the same phone Samsung Galaxy Note 20 Ultra Dual Sim from HK and Rogers does not support this version for 5G which is super frustrating. I need the dual sim and having 5G would be amazing.... We're you able to figure out a solution? I'm also open to buying another Dual sim Note 20 Ultra with North American 5 G Bands like n66 (which runs on Rogers, Bell and Telus). Any recommendations?
[Samsung Galaxy Note 20 Ultra Questions & Answers] karthigan:
Hi,

I am in the same boat. Not only I have the SM-N9860, but I also have SM-F9160 (Galaxy Z Fold 2 512 GB). Only reason that I went with these models, I needed dual sim + 512 GB storage (I know that the Galaxy Z Fold 2 is not dual sim, but, whatever).

I am continuing to do some research about loading Rogers CSCs into SM-N9860 (via ODIN tool or whatever else), but coming up empty.

Does the CSC really control the modem's bands, given that it is a snap dragon model?

I am also looking into SamKey to change the CSC - but it is not looking promising, as Rogers CSC value is RWD (I believe), but it does not or ever will exist for N9860 model.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
What I can say is that it makes a few more bands available but I cannot confirm that any of them work... Here is a screenshot of what the DSH csc did to my sm-n986u1
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Disregard 1st photo
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Here is the before
[Samsung Galaxy Note 20 Ultra Questions & Answers] ekerbuddyeker:
Can you line these up side by side?
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Here is the side by side of the lte bands.
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Marked in red are the additional bands you get with the DSH csc enabled
[Samsung Galaxy Note 20 Ultra Questions & Answers] ekerbuddyeker:
Can you explain exactly what you did here. I have 9860.can I enable more bands?
[Samsung Galaxy Note 20 Ultra Questions & Answers] mellojosh:
One note about the DSH CSC, it does not appear to have DSS enabled by default, which means DSS sub6 5G won't work if your carrier uses that. Thats why the ATT CSC works with 5G on n5 for Verizon but not the Dish CSC. I posted a guide about CSCs and enabling bands and DSS. The dial codes should also work for Canadian phones as well, but I can't test so let me know!

https://xdaforums.com/galaxy-note-20-ultra/how-to/guide-service-mode-csc-guide-enable-lte-t4182293
[Samsung Galaxy Note 20 Ultra Questions & Answers] inningsdefeat500:
Trying to get this, so its possible to enable 5G on a 9860 with Rogers?
[Samsung Galaxy Note 20 Ultra Questions & Answers] karthigan:
So, I tried the "Google Dialer" options to change the service menu settings - for me, on the SM-N9860, it is not working with Rogers.

But definitely, didn't see any options on the service menu that pertains to the Rogers' 5G bands - n38 / n71 / n66.

Next thing I am going to try to do is: borrow my friend's Rogers Note 20 Ultra and compare / check line by line all the service menu options - and see what I can change or not change.

We'll see.
[Samsung Galaxy Note 20 Ultra Questions & Answers] Limeybastard:
It's missing LTE band 71.

So for clarification purposes you have a sm-n986U model and before changing csc which I'm assuming you did , band71 was not available amongst others which you circled in red on another post?
[Samsung Galaxy Note 20 Ultra Questions & Answers] aerofoiler:
Just entering this conversation. Thanks to all for your experiences and updates.

So I bought a Note20 Ultra 5G, from Rogers on a Plan. And for personal reasons have to come back to the Middle East (Qatar). It does not catch the 5G signals here for the same reasons that the local 5G bands are not supported.

As soon as I put the SIM in the phone i received this message,

Currently you are using a 5G device which is not certified to access Ooredoo 5G network, there fore you will not be able to access the Ooredoo 5G network.

I hope we get a SW update which changes this situation or it becomes useless to spend so much money on flagship phones if all features don't work.
[Samsung Galaxy Note 20 Ultra Questions & Answers] Limeybastard:
The message you received from the carrier network would indicate to me that they are preventing your device from accessing their 5G network. Looks like the carrier only allows their own whitelisted devices .
[Samsung Galaxy Note 20 Ultra Questions & Answers] GDHAMTON7:
Correct but I am on vzw and we only use bands 2,4,5,13,66... I cannot connect using band 71. Not exactly sure who uses that band.

Here is a more detailed step that I followed from another user on here

https://xdaforums.com/galaxy-note-20-ultra/how-to/guide-service-mode-csc-guide-enable-lte-t4182293
[Samsung Galaxy Note 20 Ultra Questions & Answers] Limeybastard:
Generally speaking all the NA devices have set radio bands already available via their radios. Like you mentioned only the ones that apply for your carrier would show. It's been like for a while. But as Rory also mentioned radios that aren't there can't be made available using this method.
[Samsung Galaxy Note 20 Ultra Questions & Answers] zimoon77:
Very good and understandable explanation.
[Samsung Galaxy Note 20 Ultra Questions & Answers] intheb0x:
So how do we use to qpst to enable bands, or change bands I keep seeing people talk about it I have the app and I get everything to work but I don't know exactly how to change bands with it or enable or disable other bands
[Samsung Galaxy Note 20 Ultra Questions & Answers] intheb0x:
What's crazy is that certain sins locked down the phone so you can't even get into PCAT or QP St. I was having so many issues and I couldn't figure out why and I couldn't connect so much so I wanted to destroy the phone but I figured out ended up being the Verizon sim I had in the phone a mvno which prevented it so once I take out the SIM and put AT&t SIM or any other one in there I can get access and everything I installed in the drivers are working correctly it's just crazy how much certain Sims can lock down phones

But if anyone could kind of guide me or help me or let me know where you can actually figure out how to change bands or enable or disable certain bands I would appreciate it using that program I have a smg988u/u1
[Android Q&A, Help & Troubleshooting] GalaxyBrickMaker:
Today I noticed an app was installed on my watch without my request and it was called LG safeguard and I looked up LG Safeguard because I couldn't find it on my watch or on my phone and LG is preparing safeguards against trumps taxes and and could it be something they're planning to do to safeguard themselves against Trump?
[Android Q&A, Help & Troubleshooting] MaxxerDaggonRobotto:
LG SafeGuard

LG SafeGuard appears as though it might be a security scanner for new apps installed on your device but I only glanced at the code..

I pulled and decompiled the source code.

Source code

https: //drive.google.com/file/d/10i72zknnJrZPAu7EbDxtOJY5oUcPytus/view?usp=drivesdk
[Android Q&A, Help & Troubleshooting] hffb27:
Strange

Yea it was updated or installed on my G8 this morning but no app as well.
[Upgrading, Modifying and Unlocking] point5pnoi:
Quick question hopefully... i have a custom rom that uses icontacts, which im not happy with. if i install another manager will that override the built in one or what do i do? thanks!
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] finshan:
I'm not talking about the AOD. When I press the power button (or double tap the screen), it gets brighter as expected but the background doesn't show up. It just stays black, but the screen is brighter.

Why is this, and how do I fix it?

Only happens with video wallpapers on the lockscreen. Sometimes it's black, sometimes it shows the video. I feel like this only started in the last day or two, and it worked fine for the past week since I got the phone.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] finshan:
Anyone?
[General Questions and Answers] Rim_pa:
I own a redmi 5a and I use it for my studies. That phone is one of the two smartphones that we have in our family. Because of it being old, the battery didn't hold the charge well so I got it changes maybe 5-6 days ago.. Today, all of a sudden, while I was in the middle of solving a model question paper, it stopped working. The screen went totally black. Now when I press the power button, only the notification light blinks and nothing else happens. I tried keeping it pushed for maybe 1 minute as well but only notifications light keeps blinking. I tried pressing volume up+power button, volume down+power button, volume up+volume down+power button but nothing happens. Only notifications light is blinking. It does not blink when I don't press any button. And it does not blink when I don't press the power button. Can anyone please help me and tell me what to do? If this phone stays like this I will not be able to study. I really want to do good in my exam.
[General Questions and Answers] James_Watson:
Get the orignal battery back, connect the device with cable to charge, and then try to power on it. Good luck to you.
[Xiaomi Redmi Note 3 Questions & Answers] elsacorv:
Hello community!

In client mode enabling gChannelBondingMode24GHz we can get 150mbps on 2.4ghz but

i was trying to get 150mbps on AP Mode:

Tried many things

1) Disabled gEnableApOBSSProt and gEnableApProt on WCNSS_qcom_cfg.ini wifi driver

2) Moded hostapd.conf

a) tried hw_mode=n on nogaut (will not run hostapd)

b) tried ht_capab=[HT40+] on oreo ( will not run hostapd)

c) tried ieee80211n=1 require_ht=1 ht_capab=[HT40] hw_mode=g etc. etc...

but only get 72mbps access point.

Is device capable of doing 150mbps AP?

Need to mod hostapd binary?

Is there any rom that support this?
[Xiaomi Redmi Note 3 Questions & Answers] Trex2017:
Not an answer rather a question. Can't you use the 5ghz band ; Have fun
[Xiaomi Redmi Note 3 Questions & Answers] amn1987:
When I had my Kenzo with me file transfer speeds over Wifi (over FTP) would average 30-32MByte/s over 5GHz band. But in 2.4GHz only 10-12MBps. My current daily driver is Poco F1 and it only does 15-20MBps over 5GHz despite 2x2 780Mpbs Wifi vs 1x1 433Mpbs in Kenzo.
[Xiaomi Mi Note 10 Questions & Answers] geminihc:
the seller i'm buying from says the phone does come with google play store... does this mean google pay will work? i do not want to flash/root/unlock BL.. since doing any of these will for sure not allow google pay.
[General Questions and Answers] Geoffrey2:
Hello All, I have used this site since the days when the Samsung Galaxy first came out- many thanks to TeamWhiskey for the ROM.

I have since an old Samsung Tab 3 (T217S) and am trying to bring some life/fun into. I have come across several ROMs that are ZIP files only to find out they are corrupt. Is there any way to double check that they work before posting? I'm not trying to flame anyone nor am I upset. I just want to help me and the next guy. I know I speak for many that we really appreciate all of the hard work that is being done to create the wonderful experiences in these ROMs. You really make these devices fun!

PS- any chance TeamWhiskey would be interested in doing some more ROMs?- lol

Thx,

Geoffrey2
[Mogul, XV6800 ROM Development] Hammerfest:
Hey!

I just lost my HDD (i hate seagate... WD FTW!) and now i have a new one (WD not the dead seagate) and am looking to rebuild my archive... can anyone link me to ALL Sprint ROM releases both BETA and Official?

Thanks!
[Mogul, XV6800 ROM Development] maskedlion:
um, why woul you want outdated ROMs saved on your HDD?
[Mogul, XV6800 ROM Development] b0ris84:
ya thats insane all the roms on ur hd

also maskedlion	ur prl is actually older than the newest one 60613 is newer than 60711
[Mogul, XV6800 ROM Development] Hammerfest:
well 1) i like keeping things archived in case i ever want to test/try something out... (ask my computer... no OS lasts over 2 months... normally only 2-3 weeks before i reinstall...)

2) I like stripping things out of them and posting them to my fserv... on occasion I will do performance testing on different aspects from each ROM in order to build my perfect rom and in the off occasion that someone needs a file i can just link them to DL

Also not only newer but... 60711 is for Data Cards... Not PDA/Phones....

Also i use a mix... I use PRI 2.03.003/Radio 3.42.50/Rom no2chem beta2.2pre8
[Nvidia Shield TV & Shield TV Pro (2019) Questions ] jmulvaney:
I am about to purchase a new 2019 Shield TV. I see with the latest 8.2 update just announced that the Pro model supports AI 4K upscalingto 60FPS. But not the standard TV model (not to 60FPS). I will only use for watching TV and Movies on either my 4K e-Shift JVC Home Cinema projector, or on a 60" UHD TV. Will not use for gaming. And I am not a sports fan. But I do like to know that I am watching Movies content in their finest quality. Especially when on the big screen with my projector. The Shield will not be used as a Media Server (Plex) so don't require the extra RAM or Storage that comes with the Pro model, or use for USB ports.

So question is - should I buy the Pro model ($100 extra in Australia)? Or will I not get the benefit of 60FPS upscaling (unless gaming) so save my money and stick with the standard TV model? Note: I am buying two, so the savings double!
[Nvidia Shield TV & Shield TV Pro (2019) Questions ] djnice77:
I'm tried, but not working:

480i50 -> 2160p50 (Unsupported)

576i50 -> 2160p50 (Unsupported)

1080i50 -> 2160p50 (Unsupported)
[Sony Xperia XZ2 Compact Questions & Answers] Moniboi:
Basically I bricked my XZ2 Compact. I have tried using Flashtool to no avail, so I moved into trying to use newflasher. Setting my phone to flash mode, newflasher utterly fails to recognize my phone and as such I'm unable to install stock firmware back. Any solution to this?