• Introducing XDA Computing: Discussion zones for Hardware, Software, and more!    Check it out!

Change CSC of SM-N9860/DS N20U 5G Hongkong Variant

Search This thread

kin201303

Senior Member
May 13, 2013
410
237
Thank you very much.
Are you come from Japan ?
Could you share link download csc with CHC also teach me how to flash it please.
Thanks


Image 5.jpg

Could you share link download csc with CHC also teach me how to flash it please.

Image 4.jpg
 
Last edited:

n175t

Member
Dec 5, 2021
16
0

Attachments

  • Odin error.JPG
    Odin error.JPG
    273.4 KB · Views: 41
  • Room Download error.JPG
    Room Download error.JPG
    141.7 KB · Views: 40

n175t

Member
Dec 5, 2021
16
0
I do volume down and power bottom to reset. Then disconnect USB cable. After that I copy this picture share to you.
Hi kin201303 !

I already downloaded Stock room "N9860ZCS3DUK3" to complated changed CSC_CHC.
how to download back to "N9860ZSU2DUJ3_CSC_TGY" room ? or other room ?
I can not back to N9860ZSU2DUJ3_CSC_TGY from N9860ZCS3DUK3CSC_CHC. Any solution please ?
Thank you very much.
 
Last edited:

kin201303

Senior Member
May 13, 2013
410
237
Hi kin201303 !

I already downloaded Stock room "N9860ZCS3DUK3" to complated changed CSC_CHC.
how to download back to "N9860ZSU2DUJ3_CSC_TGY" room ? or other room ?
Thank you very much.

Hi kin201303 !

I already downloaded Stock room "N9860ZCS3DUK3" to complated changed CSC_CHC.
how to download back to "N9860ZSU2DUJ3_CSC_TGY" room ? or other room ?
Thank you very much.
The same way
now you can’t back to N9860ZSU2DUJ3_CSC_TGY
because N9860ZCS3DUK3 CSC_CHC is lock bl,you wait next version,

next version is 3 you can back to N9860ZSU3xxxx_CSC_TGY

The 5th digit from the bottom of the version must be the same

Image 1.jpg
 
Last edited:
  • Like
Reactions: n175t

n175t

Member
Dec 5, 2021
16
0
The 【N9860ZCS3DUK3 CSC_CHC】 is only really useful for call recording, and there are many errors and limitations on connecting network operators in Japan. According to your experience, can you advise me if I can downgrade from 【N9860ZCS3DUK3 CSC_CHC】 to 【N9860ZCU2DUK1】 and then back to room 【N9860ZSU2DUJ3】? Thank you for helping me a lot
 

kin201303

Senior Member
May 13, 2013
410
237
The 【N9860ZCS3DUK3 CSC_CHC】 is only really useful for call recording, and there are many errors and limitations on connecting network operators in Japan. According to your experience, can you advise me if I can downgrade from 【N9860ZCS3DUK3 CSC_CHC】 to 【N9860ZCU2DUK1】 and then back to room 【N9860ZSU2DUJ3】? Thank you for helping me a lot
You try downgrade to TGY
 
  • Like
Reactions: n175t

n175t

Member
Dec 5, 2021
16
0
Yes with an already known way, I flashed my phone with CHC (open china's) rom. Native call recording came but it was a disaster to use a China only rom with everything designed for Chinese. Plus lots of bloatware. So I switched back to TGY csc (Hong kong) and now settled in poor ACR with low quality recording.

Sent from my SM-N9860 using Tapatalk
Hi Farehmani !
What is room version your switched back to CSC_TGY_HK from CSC_CHC room ?
 

Top Liked Posts

  • There are no posts matching your filters.
  • 7
    UPDATE:
    New Method:
    Install Google Phone app and key-in *#*#27262826#*#*
    Credits to this post.

    Hi!

    I successfully changed CSC from TGY to BRI and vice versa on my SM-N9860/DS.
    From N9860ZSU1ATH1 ROM, I just flashed my unit back to the N9860ZSU1ATGM (stock firmware with July security patch) using Odin and then change CSC using the Change CSC app by Mysterious Dev.

    Download Links:
    N9860ZSU1ATGM or N9860ZSU1ATGM MEGA Download
    Change CSC Windows App

    Important notes and instructions:
    • Tested only when coming from N9860ZSU1ATH1 TGY/BRI ROM.
    • Factory Reset is required when flashing N9860ZSU1ATGM. If you are new to Odin flashing, check this thread first. Use the CSC_OMC_OZS_*** file instead of the HOME_CSC_OMC_OZS_*** on the CSC slot in Odin. You can use the latter but reset is still required.
    • After flashing is done and and your phone has completely booted, open the Samsung Themes app and login your samsung account, update the app if ask.
    • Before doing the change CSC, do the following first:
      • Enable developer mode on your phone and enable USB debugging
      • Disconnect your phone from internet.
      • Connect your phone to your PC using USB data cable and allow PC connection on your phone once prompted.
    • Turn-off your windows PC anti-virus before installing and opening the Change CSC app (the app is being detected as a virus)
    • If the Change CSC app is not opening properly, you need to run it as administrator.
    • On the Change CSC app, click "Check" > "Connect" > Select "Android 10" > Click "Change CSC". Go to your phone and click "Check out my stuff". Then follow the instructions shown on your windows desktop. Select the 'Android 10' option in the Legal Settings. Select the CSC that you want to test (BRI or TGY) and install. Click "Remove Change CSC" once done.
    • Turn-on you windows anti-virus back.
    • This will not trip knox if followed accordingly.

    Do these procedures at your own risk!
    2
    As you may know, I have not yet made any changes to my default CSC (TGY) to the new "CHC" for call recording.

    But while running the following commands (using Google Phone app):

    - SERVICE MODE:
    *#*#27663368378#*#*
    - CSC SELECTION:
    *#*#27262826#*#*
    - BAND SELECTION:
    *#*#2263#*#*

    I Noticed that the CSC Selection shows only TGY and BRI, and Dev/QA.

    Anyone knows what DEV/QA is for? Besides being the obvious "Development and Quality Assurance"?

    Thanks.

    Sent from my SM-N9860 using Tapatalk
    1
    After changing to BRI, I was able to update my phone to N9860ZSU1ATH1 OTA.
    With BRI, I am already getting the 4G Carrier Aggregation on my unit here in the Philippines (which was not happening previously with TGY).
    CA makes a significant difference on my unit. I now have 70-125mbps with it. Without it, it barely hovers 20mbps.
    I have not tested the 5G yet. I have no 5G signal in my place yet.
    1
    I do not understand how people blame Samsung for them importing a phone and using it in an unintended location to the point people are flashing software not intended for said model.... There is a ton of regulation involved in each specific country in regards to mobile services... People expect Samsung to cover each and all regulation across the entire world?... Is there specific knowledge that Samsung disabled the feature?.... When dealing with imported models and flashing different firmware YMMV.... I've imported phones for 10 years and understand that unless I'm buying the Japanese retail version, I will have to deal with anything that comes from importing another regions model... Sorry for the rant :)

    ---------- Post added at 06:38 PM ---------- Previous post was at 06:35 PM ----------





    CA was confirmed working out the box for HK in several regions throughout the world... What did you use to test your CA? Could be something that needs to be taken note of as several other members and myself have been running the HK model through it's paces

    ---------- Post added at 06:40 PM ---------- Previous post was at 06:38 PM ----------





    Did you try placing the 5g sim in the second sim tray? This is very interesting.....
    And if you are a Hong Kong citizen, then you buy this phone, you come to Europe and you 5g stops... hum hum very good in a 1300€ smartphone [emoji38][emoji38] and xiaomi , oneplus etc why they work around the world? They don't have regulations to cover too?

    Is Samsung bullshitting, but maybe not in purpose , every time they send a update they fix one thing and kill other 2 or 3....

    Enviado do meu SM-G9650 através do Tapatalk
    1
    I think is that MAYBE the mhz are different even though the band is n78.

    If we look here: https://en.m.wikipedia.org/wiki/List_of_5G_NR_networks

    It says that in HK they use 70hz and 80hz for band 78, whilst, for example, in the UK they use: 40hz, 50hz and 100hz for the same band 78.

    I wonder if this is the case and if so, it might a software limitation (disabling all other "unused" mhz?).

    Mine N9860 both 5g and 4g+ were working out of the box
    Once updated neither BRI nor TGY shows 5g
    So i went back to initial build and 5g worked again