yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
Most of the discussion has been in Kalm_Traveler's original thread.

As far as I know this mod is not finalized yet and the process may change, but you will need to use a custom bootloader, thus tripping knox (if you care about it, IMO you're in the wrong forum lol. Nothing wrong with that either.)

I've been flashing CSC stuff via TWRP right after flashing a rom (or official firmware package via Odin).

This lets your desired CSC get applied during initial phone setup.

I think another important part is to flash any CSC related things and do a "factory reset" immediately afterwards (before booting into actual os).

This particular mod is for N950

F

based roms (read: any custom rom on XDA at the moment).

Kalm_Traveler has the korean N950

N

. Just wanting to point out the differences between rom vs phone model.

My understanding so far is that he is trying to get everything squared away for N based roms and Samsung making every region model slightly different (like N950N vs N950F) making things tedious trial and error inducing headaches.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
I've been struggling like crazy trying to figure out what about the F variants made them so easy to patch the T-Mobile stuff into, somewhat certain I finally came up with a working patch tonight for the N variant of the firmware. Please see this post In digging through both, I found that they're about 98% identical - with only a handful of extra apps/libraries/drivers/etc on the F, and the only files they both have in common but that are functionally different don't have anything to do with this mod.

If several people can follow those steps exactly and get the same working result I have right now, that will confirm that I finally figured it out and I'll finish fleshing out the patch to add AT&T (though I have no way to test it and everyone on here says that you need them to provision the IMEI for VoLTE and wifi calling anyway...not sure they need anything beyond just plain CSC files), as well as have it auto-delete all the Korean bloatware.

Also, if that new patch works for the N, it will supersede this F-only patch since it's basically just adding a few files from the F that the N is lacking, and tacking the T-Mobile CSC/wifi calling/VoLTE stuff in with it.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
Full wipe via odin (wiped partitions with PIT file, enabled phone efs clear, BL/AP/CP/CSC/UMS as per factory firmware update files).

Rebooted to download mode and flashed TWRP in (I did not let it boot to the stock recovery)

Rebooted into TWRP, flashed decription/verity zip, rebooted TWRP, full data wipe (top right button in wipe screen). Rebooted TWRP again.

Flashed kernel + root, then your CSC and booted to system.

English welcome screen :)

No option for Secure Folder at "more useful features" screen, (same one with weather and screen layout options)

*note: I skipped as much as possible*

Upon boot, holy crap high dpi width (now 480 vs 411 (see screenshot).

Dialer has video button.

Options for LTE features exist in Connections > Mobile Networks

About Phone > Status > SIM card status > Mobile network type: LTE

About Phone > Status > IMS registration status = Registered

CSC stuffs: ATT/ATT/SKO

Rebooted to TWRP, reflashed your CSC and booted back to system.

Didn't loose root (Magisk).

Could finish wifi calling setup and change address on record.

I see no other changes as far as files go. I can enter the settings menu for Messages now (always crashed before with CSC changes).

Still waiting on my contact at the local corporate AT&T store here in town regarding my other AT&T issues, so I can't comment on actual usage yet.

Also, regarding the AT&T Multi-CSC messages I mentioned, I was still seeing them after a full repartitioning via PIT file in odin along with option "phone EFS clear" enabled). Still boggled by that, but it seems it's visual only as I can't find anything about it in the other paritions including /efs
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
Oh this is interesting, did you flash my zip from the 1st post in this thread or the one in my sig? The one in the first post shouldn't have any effect on the dpi (and to be honest I have no way to test AT&T, just been cranking away at T-Mobile functions since that is my provider) but it's interesting to see that this can work for you guys too.

If I can figure out how to understand a logcat log, or find someone on here who can teach me - I should be able to complete my T-mobile goals any day now and then I can finish up a proper AT&T feature pack to bundle them together.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] DeeXii:
Anyone here know how I can get the keyboard from the T-Mobile Note 8 or USA note 8 for that matter?
[Samsung Galaxy Note 8 Themes, Apps, and Mods] shouren04:
What's the difference between the USA & non-USA keyboards?
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
The one you asked feedback on (linked in your sig).

I don't know how much you know about logcats, but this thread helped me figure out how to filter out some of the crap you don't care about out of them.

https://xdaforums.com/showthread.php?t=1726238

Also, another strange behavior I've seen is after a fresh install, I still need to do the old reboot after first boot or things sometimes don't stick (like root being lost for whatever reason).

I've also (rarely) rebooted to find any of my fingerprints/face/iris/PIN/Pattern fail completely, and rebooting again fixes this.

Have you tried multiple reboots when your wifi calling no longer connects?
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
I haven't tried repeated reboots in a row but another user mentioned tonight that his wifi calling randomly connected properly after a reboot tonight, but he tempted fate by rebooting again and it went back to Enabling again.

Since that doesn't happen on the F variant base, my guess is that one of the related files has a setting or something slightly different.

I found a Windows utility to compare both ROMs which is how I figured out which files are "missing" from the N, as well as which files are different, but so far with all the "different" files I've gone through, the only differences are that they have the F variant name in them. The libsec-ril is different but i tried swapping that and all it did was tell me i was in dual SIM mode, no effect on wifi calling.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] mikeymc:
Hi Kalm_Traveler,

I've been following your comments here, Exynos CSC swap for your T-Mobile 950N, and the S8 CSC selction thread, and I just decided to get the 950F from Clove UK. As much as I wanted the Korean 256g version, I needed a working device sooner than later. I'm on USA AT&T, and I just got the 950F from Clove. I wanted to flash your file here so I can have a fully functional device on the network, but I don't know what "few tiny script things" need to be changed. Looking at the files inside, I assume where TMB CSC version is listed, I need to change that to USA ATT (N950U1OYM1AQH9). But there are some other texts that I don't understand, and I'm not very familiar with this kind of process. This is my first Samsung phone, and it seems things are more complicated than any other devices I've owned. I'd appreciate it if you can give me some pointers. Thanks.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
The CSC Selection tool contains AT&T CSC as well, you can just choose that from it's menus. The newer patches I've made more from scratch have the files too, but they are set to change the CSC to TMB. You would need to change the installer script to set the values to TMB, as well as change one of the main files in the OMC folder in the same fashion.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] mikeymc:
Hey, thanks for the quick reply. You mean your Exynos TMO pack in the OP is a tool that'll let me select the ATT CSC? Sorry obviously I haven't tried it yet. I'm already rooted with SuperSU and have TWRP installed. I can just flash the zip? Your newer patch is a work in progress for your T-Mobile network it seems. I hope you get it figured out soon. Thanks for your work.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
Hmm no it looks like the one in this thread is not a mod of the original CSC Selection tool. I posted one up on Mega but the link is in my Q & A thread somewhere. I can dig through there and try to find it later, or you can go to the original S8 thread - a few of us have posts there indicating how to modify that original tool to let it run on our Note 8.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
Perhaps something important is being missed in the encoded cscfeatures.xml?

Only other thing I could really think of is a binary file looking for a system variable (like spoofing N firmware/files/csc/radio/whatever as F). Perhaps even kernel related? (just a wild guess, I know nothing about the enforced/permissive flags I've never had to deal with on my prior HTC devices).

There is also the probability of radios behaving differently for the same reason. I think this was a thing on early HTC devices (renaming RILs to get a better signal for a specific carrier)
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
In my latest zip, neither of the encoded files is included, everything is instead in an unencoded others.xml file, but I have compared the contents to those from my Note 5's cscfeatures.xml and don't see anything missing at all.

Kernel is probably not the cause either since the wifi calling has worked with the stock kernel, and when I was on a 950F ROM I used the same kernel with normal functionality.

Radios possibly, as I have not been replacing the RIL with that from the F variant, though again several people have had the wifi calling connect properly with the N variant RIL as well so I'm not quite sure yet.

I am reflowing my usb/antenna circuit board right now to try and fix the LTE antenna issue it developed after a few days but once that is back together i'll pull a logcat with ADB and see if we can find someone on XDA to help me interpret it.

As far as I'm understanding right now, this is sort of the process for T-Mobile's wifi calling to work:

EPDG checks for wifi connection

wifi confirmed, then it tries to change the RIL from LTE to IWLAN

if the switch happens, the wifi calling service tries to connect to T-Mobile

if WFC service connects, it tells the T-Mobile WFC Utils app to put up the status bar icon

The issue as far as I can tell is that EPDG is failing to switch the RIL, but I don't understand the exact reason. I see several logcat entries about calling a value as the wrong user, and lots of messages about the result of trying to switch the RIL from LTE to IWLAN being false, but I'm sure there is something more obvious to people who know how to read these logs.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] DeeXii:
Any idea how to fix this. I seem to be experiencing this. :(

I'm on a N950F from Clove.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
there seem to be some bad antenna/usb circuit boards in the 950F and 950N's. I put mine in the oven at 250 F for about 30 mins and since then the LTE signal has stabilized, but is still weak. I realized that this was not hot enough to completely melt the solder so I am going to throw it back in the oven tonight at 350 F for 5 or 10 minutes and see if that's enough to melt it fully and hopefully fix the issue.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] DeeXii:
Well that sucks. Do you see any other reports besides me and you? Is samsung going to fix this? Heating the whole phone isn't the best solution. Especially for the battery.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
Yes in the Q&A forum I have now seen several people with signal, mic, and bottom speaker issues (those are all on the same lower circuit board). I have not heard anything from Samsung, but since most of us have tripped Knox with TWRP so no warranty anyway.

I would definitely not recommend heating the whole phone, agreed. I took the circuit board out and set it on a piece of aluminum foil in the middle of a toaster oven.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] shouren04:
I haven't noticed any mic or speaker issues yet on my F. And my speeds are still the same as when I got the phone if not better in some areas. Faster than my Note 5.

Which app are you guys using to check LTE signal strength. And does it tell which band you are connected to? I'm curious & want to check my phone. The one I tried does not tell me which band I'm connected to.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] DeeXii:
Knox warranty is not the same as the hardware warranty. I have known people that have gotten Samsung repairs with Knox voided.

Im starting to wonder if it is something else besides a hardware / connection issue.

I found this.

https://xdaforums.com/att-galaxy-note-8/help/factory-unlocked-note-8-slow-lte-speeds-t3680090

It seems it everyone so far that has payed attention to their speeds has been affected by this (unlocked / international models).

The only problem with that link is I cannot test it as that menu suggestion on the site will not work. :(
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
Good to know, if baking the board at a higher temp doesn't fix my issue I may try to reach out to Samsung Korea then.

As far as I understand that thread is about the 950U American unlocked models. I have tried making sure I'm only looking for LTE/UMTS but it didn't change anything. I would wager that it's entirely possible that the antenna/usb board is just faulty for a number of models as they are the same part across all variants.

In my case I know it is the board, and is a physical problem because when diagnosing I found that applying pressure to one of the antenna connectors made the signal strength jump up to equal to my Note 5 (increased it from bouncing between roughly -95 dBA and -130 dBA all the way up to a stable -75 or so). Can't get much more obvious than that.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] DeeXii:
Where can I see the dBA?
[Samsung Galaxy Note 8 Themes, Apps, and Mods] shouren04:
I'm not doubting you but are you using your fingers to apply pressure? Your body will amplify the signal. One of my techs tried convincing me the same on a WLAN board in a laptop once, he was so stubborn. Anyway try using something non conductive to apply tge pressure & preferably long, so your hand is far away from it to get an accurate result.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
My finger and my https://www.ifixit.com/Store/Tools/Tweezers/IF145-020-2 yielded the same signal boost in this case, and this boost + stabilization only occurs when pressing in a specific direction. Simply touching the connector does nothing at all.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] shouren04:
Tweezers can amplify too. I would use a green stick, or black, or yellow, whatever colors they are making them these days. But ok, sounds probable enough in your diagnosis. Let us know how the oven goes.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
I'm using LTE Discovery on both phones (my Note 8 and Note 5)
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kalm_Traveler:
I got the icon back! May have finally found a lead. I was checking into another issue in the logcat about a permission denied error and manually changed the permissions on /dev/cpuctl from 555 to 777 and the status bar icon along with persistent notification popped up within a few seconds.

Now to figure out what keeps changing it back to 555 when i reboot... Need to do more testing but I think this is the final piece of the puzzle.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
I can only access this menu when I have an AT&T CSC. Any other rom, custom or official, will never give me this screen.

Another way to get there is via : https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher

Which does the same thing as *#*#4636#*#*

With the CSC, mine defaults to what the thread recommends, LTE/UMTS auto (PRL).

Any changes I make on the menu do not work. Ex: Changing network to GSM only does not change signal connection instantly or after a reboot. Reentering the menu resets everything to match the "current" setup and no way to change it from here.

---------- Post added at 08:54 PM ---------- Previous post was at 08:43 PM ----------

I wonder if this is related to that blue android is updating and fails at 32% and starts "erasing" or goes to "No Command".

Or perhaps somehow related to others loosing OEM Unlock for a week?

If you've played Demons/Dark Souls/Bloodborne, I think once you figure that last piece(s) out that you'll get that feeling after your first ever boss kill.

*queue "Satisfaction" music video*
[Samsung Galaxy Note 8 Themes, Apps, and Mods] rayn1988:
I just want to say thank you for this thread. I purchased a N950F because of the development here and currently use T-Mobile and was disappointed in the LG V30 and prompted me to buy the Note8 instead. I'm more disappointed in US carriers decisions to not make the Note8 bootloader unlockable.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] masri1987:
If i flash this on N i will be missing only wifi callling? if so, i'm okay with that!
[Samsung Galaxy Note 8 Themes, Apps, and Mods] mikeymc:
My issue now may not only be limited to my US AT&T network and wanted to bring it up here. I thought TMO and ATT share a lot of similarities as far as their network goes. It may not even be a network issue after all. But please direct me to the correct place if it shouldn't belong here.

After Kalm_Travelers direction and Kamikaze_Ice's help, I've so far flashed my UK N950F with the S8's CSC tool after making the small modification and the older version of your tool mentioned at the OP (thanks Kamikaze) to make it with with the US AT&T network. Regardless of which one I use, the end result is the same. 'Cellular' network works. I can definitely make calls and send/receive texts, but not MMSs. But I have no data. Under sim card status, mobile network state is either 'connecting' or 'disconnected.' Spent almost 2 days with 4 different AT&T tech support who tried to help me change the APN settings. In the end, I have the correct 'nxtgenphone' APN settings and the SIM has been correctly provisioned. Therefore it's the faulty device. Now before I list this on eBay or something, I wanted to ask the enlightened minds of this thread about their opinions. Only relevant topics I could find about my problem is old Note with KK or S6 and S7 Edge threads taking about changing the APN settings and having the SIM provisioned, which I did so far.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
Are you using Magisk for root? It gave me trouble with VoLTE.

I switched to SuperSU and have had no problems since.

I've not changed any APN settings, but you can get them from AT&T here: https://www.att.com/esupport/articl...ent_=/wireless/KM1218306#!/wireless/KM1218306

I'm using Renovate Ice at the moment, benchmarking screen on time, but I've had every custom rom (except snapdragon one lol) working fine with all AT&T features.

I even managed to get 9 Mbps, which is three times more than normal here in town... (yes their service sucks eggs).

The only thing I needed an AT&T rep/tech to provision was wifi calling. Everything else worked with correct CSC on a N950F rom (didn't check my stock N950N firmware).
[Samsung Galaxy Note 8 Themes, Apps, and Mods] mikeymc:
I stick with SuperSU for its familiarity and long track record. I never really tried Magisk.

I did see that website and went through the APN settings with AT&T support people.

In fact, the nxtgenphone APN is what I have checked right now.

After flashing the CSC tool and Kalm_Traveler's package, APN type in the APN setting was showing up as default,supl,hipri,mms,fota as oppsed to AT&T's suggested defualt,mms,supl,hipri.

Everything else was the same.

Playing with it in a bunch of different ways with AT&T tech support did not change a thing with my connectivity.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
Flash it with stock firmware and then take it to an AT&T store and let them put a different SIM card in it and see what happens.

The sim card and anything they might have done to "fix" (read: break) compatibility is all I can think of. The roms, CSC files and such available all work just fine for me (Korean phone).

There are a few users I've seen with an Euro model (N950F) and use AT&T but I don't remember seeing any issues aside from getting the right CSC flashed.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] mikeymc:
Visiting an AT&T store was not helpful. A dumb blonde was checking things under settings and changing APN settings a bit. She disabled developer option and restarted it before I could mutter a word. Mind you it was still unlocked with TWRP recovery. I immediately resulted in an FRP lock. I did walk away with another SIM to play with. During a full Odin stock restore using its original BTU firmware, I happened to notice a HSPA+ connectivity upon initial boot. APN type was set at PHONE instead of NXTGENPHONE with everything else being the same as it would have been had I flashed the CSC zip. Changing this to anything other than PHONE results in a complete loss of data connectivity. I decided to just live with HSPA+ for now because I'm glad I have something at least. Whether I'll be happy living with 1.2Mb down and 0.1Mb up speed still remains to be seen.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] masri1987:
NEVER hand your phone to retail agents, having worked in the telecom industry for a decade, retail, in terms of technical knowledge, are not going to be competent.

Also when you get to twrp your phone again, you should try flashing dr ketan csc tool or modify tkkg1994 tool (or when he releases one that will include ATT)
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Kamikaze_Ice:
I agree, however the reason why I sugested he do that was because he used the same CSC file I used which failed to work for him.

This is a modified version of Kalm_Traveler's CSC, which was changed to default to AT&T because I didn't want to copy tkkg1994's CSC switcher hundreds of times as it takes a little bit to transfer the ~5 gig CSC switcher, and I'm so OCD that I need to do a complete wipe and return to stock firmware anytime I make a change to anything that would require root and not a 3rd party app or service.

And because we (and he) do not know what the phone reps/techs did. They could have screwed up the provisioning or whatever.

Honestly I was hoping it was a SIM card issue since he was only having problems with MMS messages.

Oh, what about your phone plan? I had to upgrade mine from a super old grandfathered 2GB plan with Company discount applied to a new 6GB plan without company discount (which is actually CHEAPER, wtf AT&T!) because it didn't include HD video provisioning.
[Samsung Galaxy Note 8 Themes, Apps, and Mods] tokoam:
I'd video in what sense ? You referring to like hdvideo playback or through mms
[Samsung Galaxy Note 8 Themes, Apps, and Mods] Ss9015:
Just a quick question from a novice user... will this flip the knox flag. Will the samsung pay and banking apps continue to work?
[Samsung Galaxy Note 8 Themes, Apps, and Mods] masri1987:
if you're flashing stuff with twrp, you've already tripped knox.