yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
CSC Selection V2.5.0:

- Removed many carriers shutdown/boot animations, same for wallpapers, it used too much space on the zip file

- Removed ATT/TMB standalone cscs, they are both already included in the XAA multi :)

- Added a check for s8/n8 port. If the zip is flashed on a port it will warn you, as this selection is only for s7 based roms. S8 ports here and n8 ports here

- Fixed AUT/BOG csc wrong description

- Updated Applock/Airmessage apps

- Updated BRI csc

- Updated ETL csc

- Updated O2C csc

- Updated PHN csc

- Updated PRT csc

- Updated SER csc

- Updated TEL csc

- Updated H3G csc

- Updated DBT csc

- Updated HTS csc

- Updated NEE csc

- Updated THL csc

- Updated TMZ csc

- Updated TTR csc

- Updated VD2 csc

- Updated XAC csc

- Updated XAA csc

- Updated XEG csc

- Updated XEO csc

- Updated CHC csc

- Added 3IE csc

- Added TIM csc

- Added DRE csc

- Added CHV csc

Downloads:

Via GrifoDev

Via Andriod File Host

I included all csc files you sent to me (plus a few extras I've downloaded). In case your csc doesn't seem to be updated, that csc file you uploaded was simply OLDER than the one included already :D

Also, many of those csc files are multi csc, just because your csc doesn't appear in this list doesn't automatically mean your csc hasn't been added...

Have a nice day guys :good:
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] romano19:
This file does not work with rom S8, N8 port? So you intend to make it for S8 Port?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
The csc selection for s8 ports can be found here
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
TMB csc gets a popup at boot to reboot to enable features of new sim and then it reboots to recovery. any way to disable this popup from occuring. tested from tgp latest rom

Works perfectly fine on SuperMan

Except for Wi-Fi Calling doesn't toggle on. It tries to and then goes back off as if the csc is missing something.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] edyny1:
[MENTION=5899304]Tkkg1994[/MENTION]

Is it possible if you can add or provide me with Guatemala CSC? If its available
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] John Chu:
Can i flash it on touchwiz stock system?

Can i flash csc into my phone on my PC?

I'm using G9350 with Qualcomm chip. So i have to do it with my own. The reason why I want to change CSC is that i want to use bixby on my S7 edge. But as you may know, G9350 is only for China and Hong Kong market. So I'm thinking about this way: flashing a Qualcom-chip based XAA csc into my phone. Is that possible?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
If you send the csc files to me sure I'll add them

Touchwiz: yes

Flash via PC: no

Flash on 9350: no

Bixby on s7 with stock rom: no
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Ubimo:
Latest Malwarebytes Antimalware App found something in lastest CSC Selection 2.5.0. I'm going to investigate further on my PC...

[MENTION=5899304]Tkkg1994[/MENTION], please tell me that is a false positive?

Edit:

What's FirewallN.apk and PhoneNumberLocatorService.apk? Sounds suspicous...

Edit2:

I checked all files with several different programs: no viruses detected.... I think that's a false positive from Malwarebyted Antimalware app.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
That's false positive yes. As long as you download the file from AFH or our grifodev servers you won't get any virus!
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] edyny1:
[MENTION=5899304]Tkkg1994[/MENTION]

I'll get the firmware from guatemala and extract the csc files. Do i need to send you entire csc folder or just certain files? Where do i send you those files?

Oh and also is there any csc selection zip for s8+ (g955f) im getting my s8+ in the mail tomorrow.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] MRDOCA:
Is it possible to add Latest NZC please. The new Zealand one in this is for spark and is branded.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] AngelRoker:
Hey [MENTION=5899304]Tkkg1994[/MENTION] , I've been following your work with our S7e for a few months and I need to thank you. For me your ROMs are yet the best we have.

Anyway, compliments aside I'm trying to solve a problem related to VoLTE with my carrier in Brazil and I'm pretty much sure that it's CSC related. I already tried ZTO (unbranded) which is supposed to work both VoLTE and Wifi Calling in any carrier we have here and no success. But since these features started to roll out only early this year maybe this CSC is not fully compatible yet.

Today I got the CSC file from the latest G935F ZTM firmware (carrier TIM Brasil) and I have no clue on how to flash it over your Batman Rom, so I was hoping to see this or even a multi-CSC for all brazilian carriers inside your tool.

Here are the files got from G935F firmwares:

Thanks again!
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
Your signature says N950F, in case you are using a n8 port you have to checkout this thread

Best thing is if you send me the csc.tar file :)

Yes the csc selection for the s8 is here

Thanks for your files, however if you want to install it on batman rom, since this is a full s8 port, you won't be able to use s7 based csc files, you need to download the G955F one and upload them to this thread (s8 csc selection)
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] AngelRoker:
Yeah, I think I missed this. Anyway I'll still upload the files for G935F as soon my internet connection stabilizes, it may help somone else in the future. Then I'm going after those S8 files.

Thanks!

EDIT: All links are up now.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] b_rad_1983:
Is it possible to extract only 1 csc (xac) to save file space?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] tech927:
superman rom, s7 twrp and csc selector boot loop

Hello,

I've installed superman 2.8.0. I then from twrp 3.2.0-1 flashed csc selector 2.5.0. I am now in a boot loop. It gets to the twrp screen, then I reboot the system from that point. I'm then told that the twrp needs updating and that the service provider needs to reboot to adjust to the new csc. I tell it ok and go back through the boot loop.

Any suggestions welcome.

Thanks.

Dave.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Duzzy5:
older version 2.5.0 had wayy better battery life for me :)
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] slim26:
Has anyone confirmed to get AT&T volte stable on a G930W8 Nougat? I've tried to install via CSC Selection 2.5 and it corrupted by EFS. I've since restored the EFS and reflashed to a clean canadian csc.

Is the proper procedure to get volte to flash ZTO first then TMB immediately after? For AT&T would it be ZTO then ATT (contained within XAA)? The instructions mention using version 1.8 - is 2.5 okay?

Thanks.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Hamid Chikh:
wech kho xD

t'es pas obligé de flasher TMC meme f dz, BTU c le meilleur kho
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] spanpana:
i have a gallaxy S7 i'm in Greece and i root my phone i want to flash the superman rom but i dont know what is csc my phone isn't locked to any carrier, i use vodafone, which csc i must use...?

Sorry for my bad english...
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] raymondoliviero:
I don't search the XEH CSC. Where is it?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] KEHT:
All of a sudden I am unable to place or receive phone calls unless I am using wi-fi calling. I'm using TMB. ??*♂️ Has anyone ran into this problem?

P.S. Disabling VoLTE fixes it. Just strange that it suddenly stopped working. [emoji848]

P.P.S Turning off VoLTE only fixes outgoing calls, still no 8ncoming calls. [emoji848]
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] mindwarper:
Would this also work on a custom ROM, let's say like LineageOS

I would like to buy a S7 or S7 edge soon (2nd hand, prices new is ridiculous >490 €) and put TWRP on it and also a custom ROM, for example LineageOS.

Then I would like to flash this CSC utility zip file to it as next step. Would this work that way or not?

I know that it says in OP for stock like ROMs only, but I really want to use this particular device for VoLTE and preferably with custom ROM (like for example LineageOS or others) also at same time...
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] tofueatsbread:
no, aosp roms dont use csc/have volte
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] mindwarper:
Okay I understand...

Now let's say I buy a S7 edge and first flash it with Odin to stock ROM and then with the right CSC for my carrier with this tool.

Then flash custom ROM afterwards, will VoLTE then work (KPN Netherlands or Vodafone) or not???

Just curious...

Else I will try Superman ROM or something like that... perhaps
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] tofueatsbread:
I mean, CSC is an OEM thing. AOSP roms dont use it, and they dont have a volte feature

If you want volte, use a modified stock rom (those based on touchwiz)
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Ubimo:
[MENTION=5899304]Tkkg1994[/MENTION]

Updated TRG CSC

Please include in future update, thx.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] mindwarper:
Okay thanks for the heads up on this...

I learned something new again... thanks for that lesson about VoLTE and AOSP ROMs...
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] n19htmare666:
Oreo on Three UK

I spent 3 hours today messing around with this and still can't figure it out on Oreo. I even tried restoring a three firmware CSC and vendor folders manually but the structure of CSCs looks different in Oreo and it didn't work. I really hope someone knows a way.

I can get VoLTE showing but calls don't go through even when locked onto band 20. It's because Three thinks my phone is not a Three headset so not registering properly for VoLTE....

I cant wait for an Oreo release - this has been my goto for so long now with Nougart. Thank you so much for all your work!
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
I successfully had my TMO csc and LTE+ was showing however no VoLTE unlike sac32 rom and no upload speed after the TMO csc. Still gonna use your beast rom ..
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] nreha:
Please add XTC CSC. Thanks
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
VoLTE is working in SuperMan-Rom 2.9 but after flashing TMB csc upload speeds are like .5mbps LTE+ shows its being used any way to help this?

SOLVED with a little help from another rom :)
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] king3opobn:
Solution?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] nreha:
Thank u. I just change my csc to my country.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
bro I literally had it working for me to get like 80mbps when i flashed normal us unbranded csc with csc changer then applied csc files from sac32 rom and everything was working except volte but then i got cocky and can't get it to go fast again :(. something to do with these files working together for T-Mobile to provide good download and extra tmobile features with their network where signal gets really strong like it combines them all and works but i can't get it going again . just keep testing i guesss.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] king3opobn:
Have you tried enabling volte?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
I should have tried when it was working. now im pulling my hair out trying to get it going as long as a i get LTE+ with an upload speed... and VoLTE works.. Something where you can probably toy with system files and get a happy result..
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] king3opobn:
I ment thru magisk module that modifies build prop for volte , it's in the screenshot above
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
Ugh this is annoying trying to figure out its weird how some csc's work okay and sometimes networks doing really good and sometimes no upload at all. I read something with TMB_keystrings.dat file or maybe CA not being initiated or preferred bands being slow ones. I will post a solution when I figure out this cause im sure lot's of people use T-Mobile and expect the best QOS.

Here's a discovery! in PhoneInfo disabling Carrier Aggregation turns off the LTE going to LTE+ and also lets me use upload speed. Now if we can just understand how to enable CA and have it work properly possible [MENTION=5899304]Tkkg1994[/MENTION] has some insight
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Stoowyguy:
CA is working somehow I just let the phone sit overnight and with TMO csc files. I guess give the phone a chance to settle with those csc files..

Use phone info and go to EU Setting and Information>Settings>Protocol>AS>RVC>LTE CAT Control>Enable both 3DL and CA on CAT9.

Did a Speedtest and got 73.65mbps down and 14.52mbps up. VERY IMPRESSIVE!
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] HondaGE8:
[MENTION=5899304]Tkkg1994[/MENTION]

Please update this csc. XID update DQJ1

XID DQJ1
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Teracotta:
You guys have done tremendous work. But why does this work? Does modifying the CSC influence the baseband, somehow? How would I port the CSC from a newer version of android to an older one?

I've got a Lolipop Galaxy S6 with a locked bootloader but root, and a Marshmallow Galaxy S6 with limited root and CA. I'd love to be able to initiate CA on the fully rootable version.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] nick2012:
Error: Service Provider Update

G930W8. Boot into recovery. Format Data. Reboot recovery. Wipe Dalvik / Art, System, Data, Internal Storage, Cache. Flash Superman 2.9.0, then CSC 2.5.0 TMB for T-Mobile. Boots up with prompt "Service Provider Update. Your device will restart to configure features supported by the new sim card." (Screenshot attached) Pressing 'ok' will then restart the device and it will automatically go into recovery. Restarting system from recovery will result in same prompt to restart again. And around and around it goes. Tried obligatory wipe of cache, factory settings, etc.

The prompt does not appear when removing SIM card after completing ROM flashing so that the phone boots for the first time without the SIM card. If the SIM card is reinserted at any time, the prompt to restart will reappear.

Only way to successfully complete setup is by keeping SIM card removed after first boot. After the launcher starts for the first time, reinserting the SIM card will again prompt a restart that goes to recovery, but after the phone boots back up, the prompt does not seem to appear again.

Going back to recovery and flashing CSC 2.4.5 TMB will make device boot up correctly without issues. Googling the issue suggests wiping cache as solution. Does not help in this case.

Another thread on XDA (https://xdaforums.com/s7-edge/help/service-provider-update-restart-to-t3415738/page2) suggests the following solution:

adb shell

su

pm list packages -e | grep 'AutoPreconfig'

pm disable com.sec.android.AutoPreconfig

After that, you may wish to go to the following directory and delete the actual apk:

/system/priv-app/AutoPreconfig/

Find the AutoPreconfig.apk package and either delete it, or just rename it to something your Android doesn't recognize. The advantage to renaming it is that if for some reason you do end up needing it, you still have the file and you can just rename it back to stock.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] KEHT:
I had the same problem. Gave up on 2.5 altogether since there's really nothing new in it for TMB.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] faisaldeus:
Hi All,

Does anyone have Luck With AIRTEL VoLTE INDIA????
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] the_baahubali:
[Q] Multi CSC and Oreo support.

How can I know if my ROM is multi-CSC? In Phone Info App, it is displaying multiple CSC available so can I infer that my ROM is multi CSC. Its CSC is XXV (Vietnam) by default and since I'm getting poor signals, I want INS CSC. Looking up on SamMobile, it seems that G935FODD2DRAG is the latest CSC for India - https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935FD/INS/.

I'm using an Oreo ROM (https://xdaforums.com/s7-edge/development/oreo-galaxy-s7-edge-oreo-devbase-t3754308) and users are reporting that they are using your tool. So can we flash Nougat based CSC on Oreo ROMs?

Please view the attachment for more details.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Paras Lehana:
Luck as in? I'm using an Oreo ERB6 DevBase ROM and just flashed INS CSC. I use Airtel 4G (Delhi).
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] the_baahubali:
Flashed INS CSC but can not restore EFS. It says no such directory or file. I can not either mount Data partition on TWRP. Any reasons? Can I try the command after booting up?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] farroo:
Yes please update. Highly appericiated
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Robert 2:
Thanks gonna give it a try
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] pleasetouchmenot:
[MENTION=5899304]Tkkg1994[/MENTION] can you please add XTC (Philippines Openline) csc into this csc selection zip? It's highly appreciated. I'm using superman rom now but sadly, there's no XTC csc option here :(
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
Of course XTC is already included in this csc selection... please check THL multi
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] ds22:
Here's the latest PHN CSC (G935PHN2DRB5):

https://drive.google.com/open?id=1b97h0C47Y0Vkkz745zNG3p8hgpMD30dV
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Tkkg1994:
The next update of the CSC will be out when official Oreo is released, so you don't need to send any new Nougat files. Thanks for your understanding :)
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] bobfrantic:
Just downloaded V2.5 and LUX is not there....
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] coolneels:
Oreo support

Can anyone tell me if i install any oreo rom in my s7 edge then i have to install csc because it says csc is support for nougate and marsh mallow please tell me can i inatall csc after installing any oreo rom
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] roxy693:
Will there be any update to the XSA csc? Im wanting to update to superman 2.9.0 but the csc hasnt been updated. Would it matter if i didnt update csc? Thank you very much ?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] farroo:
You can flash UAE CSCs. it does include PAK CSCs. I have just flashed on S9+ port ROM by Kill Switch.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] yousufbk:
1. what if i do not install csc

2. Is it necessory to download this much big file. isn't it possible to download any specific csc

3. Already flashed G935FXXU2DRAG baseband. kindly tell me which csc should i use.

Thanks
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] ForbEx:
Can I flash it on Sac23 ported S9 ROM?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] KvD:
Yes you can
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] MRDOCA:
Can you please add VNZ and NZC to this one? I've been using the n8 csc selector and these are updated on that selector. Thanks
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] pleasetouchmenot:
Please read the last page [MENTION=5899304]Tkkg1994[/MENTION] said regarding on the update of this CSC.

Have a great day :)
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Max195:
hey can we get different mirrors for this since grifodev seems to just be down completely and androidfilehost is struggling to download even just 10mb of data before making my download speed tank to an entire 0 bytes per second
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Teracotta:
Will this be updated to work with the S9 variants? Need files for it?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] bobfrantic:
[MENTION=5899304]Tkkg1994[/MENTION] are you going to add the LUX csc to your file as it is listed in available csc on first post?
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Omegadrive:
[MENTION=5899304]Tkkg1994[/MENTION]

The CSC file I need is NOT included in the latest CSC Selection 2.5.0 tool, I couldn't find it when I used your zip.

Just in case you don't have it here is the link to the Claro America Latina CSC of my rom (PCT = Claro Puerto Rico) so you can include it in next release:

https://mega.nz/#!bB5AQBYT!-97Cge5UTQOM3u3VorEbjJ6ktUAI05wBzEPYjogy2ic

Many thanks
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Maaadoong:
my smartphone s7 edge sprint sm-g935p ... can i use csc selection ..
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] jtford:
Don't think it supports the 935P. The supported variants are listed.
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] Maaadoong:
So wht should i do with my s7 edge sm-g935p csc running in my country indonesia...

Thanks for the answer...
[Samsung Galaxy S7 Edge (Exynos) ROMs, Kernels, Rec] mindwarper:
[MENTION=5899304]Tkkg1994[/MENTION]

I have a question about updating the CSC using the CSC Selection utility 2.5.0. I have noticed for PHN region where I am in the version in CSC utility is PHN2DQI1; checked it with PhoneINFO App...

Any way of manually upgrading it with newer downloaded CSC (stock) G935FPHN2DRB5 afterwards (for my S7 edge at least lol)?

Maybe until Samsung releases Oreo 8.0.x builds for S7 series SM-G93X devices, could we perhaps have an updated intermediate revision of this great utility, like version V2.5.5 ???

Just as we don't know when exactly Samsung is going to release official Oreo 8.0.x build for the S7-series phones...

Just curious, no offense intended...

Is there actually a way that I can manually upgrader CSC after using CSC utility ???

Something we can extract from the stock CSC and apply manually, e.g. copying to system for example in recovery after extracting from the cache.img file... ???

Just I don't know how to unpack the cache.img file without flashing (see below), that would be just great haha

Additional Info:

I have first flashed stock ROM with PHN CSC - SM-G935F_G935FXXS2DRC3_G935FPHN2DRB5_G935FXXU2DRB6 with Odin and manual reboot phone to stock recovery to let it do it's work on the stock CSC

Also flashed newest DRC6 BootLoader = BL_G935FXXU2DRC6 from here: https://androidfilehost.com/?fid=673956719939833408 with Odin with Phone BootloaderUpdate

ticked

in Options tab

Then I booted phone into Download Mode

Then I flashed TWRP 3.1.1 with Odin and with manual reboot into TWRP recovery

I mounted /system and /efs (just in case, but not really needed) in TWRP

While still in TWRP connect phone to PC with USB cable

In TWRP I used File Manager to copy from inside /system the csc directory over to my PC in a temporary folder

There I extracted already multi CSC zip file into other dir on my PC

Navigated to aroma/csc/PHN/system directory (which is the CSC I want to "update")

Edit 2 files in there

Edit & save CSCVersion.txt to this:

G935FPHN2DRB5

Edit & save SW_Configuration.xml to have this info

<CSCVersion>2DRB5</CSCVersion>

copy the entire csc directory backed up in step 6 and

overwrite

the one present in the aroma/csc/PHN/system ==> i.e. overwrite the files already present in the aroma/csc/PHN/system/csc dir

now I zipped up the whole bunch at the root of where I extracted the original zip file (see step 7) to a new ZIP file

generate a new MD5 hash file for this new zip file

While phone is still in TWRP transfer this new modded zip file and the md5 to phone

Flash this modded ZIP file in TWRP as I normally would and reboot phone

check in PhoneINFO App the CSC version = PHN and = G935FPHN2DRB5

Done, me is happy :)