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Android Devices

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Obtain the Root Priviledge and so on.

• Galaxy s8(SM-G950, SC-02J-OMU1CUD4, Android9, Kernel4.4.153)
• Galaxy Note9 (SM-, SCV40-KDU1CUD2, Android10, Kernel4.9.186)
• Galaxy Note8 (SM-, SCV37-KDU1CUE1, Android9, Kernel4.4.153)
• Galaxy s6(SM-G920F)
Overseas model does not have One-Seg (TV in Japan) function.
• Huawei GR5

galaxy s7 edge	SC-02H	SCV33
galaxy s8	SC-02J	SCV35
galaxy s9	SC-02K	-

galaxy s8+

SC-03J

SCV36

galaxy Note8	-	SCV37
galaxy Note9	-	SCV40

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Root Application

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• Change MAC Address for a rooted device
• init.rc: run a script on the boot time

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ADB (Android Debug Bride)

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Useful commands:

1. $ adb devices # to list connected devices.
2. $ adb kill-server # when a device is unauthorized.
3. $ adb shell # to login your smartphone device.

for rooted devices:

• su are located in /sbin/

Commands at your smartphone.

pm list packages -s # list all system packages.

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WiFi share (Wifi-to-Wifi Tether) by Galaxy S Series or Note Series

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This fantastic function begins from Galaxy S7.

• Galaxy Note 10+ with Android 12.
• Galaxy Note 9 with Android 10 or 9.
• Galaxy Note 8 with Android 9
• Galaxy S8 with Android9.
It is very deep in the Settings as if it should not be found.

1. Settings -> Connections -> Tethering -> WiFi Tethering.
   
2. You will be asked to insert a SIM. This indicates that it is for mobile-to-Wifi Tethering.
3. Once you insert a SIM, you will be asked to turn off wifi to turn on wifi tethering. This also indicates that it is for mobile network tether through wifi.
4. Once you agree, settings for wifi-tether will open. You can set up a wifi-hotspot. You can configure a fixed hotspot, which means the SSI and its password is fixed. (this is not easy even if it is a rooted device due to a restriction from the Android.
5. There is a setup button under it and you push it. There is a detail button at the bottom.
6. At the very bottom, there is a column for Wifi-Share, which is turned off in the default.

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Turn off the shutter sound of camera app in Japan:

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it is mandatory by law in Japan that all smartphones makes a shatter sound, thus it makes a sound even if you set it in a silent mode, which would be annoying to be honest.

• Root needed:
  change the file name of /system/media/audio/ui/Shutter.ogg to e.g. Shutterx.ogg via a rooted file manager such as ES File Explorer.
  This worked for my galaxy s8 with Android 7.0.
• Root not required:
  Download an application called "setEdit". Find the key called "csc_pref_camera_forced_shuttersound_key" and change the value from 1 to 0.
  Reference: https://www.reddit.com/r/S21Ultra/comments/t3grv7/heres_how_to_turn_off_camera_shutter_sound_on/?rdt=41526
  This worked for my galaxy Note8 and Note9 with Android 9 for both. This did NOT worked for my galaxy S8; there is no such entry in setEdit.

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Android App to Install

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• Applications to install

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Root in common among devices

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Root Via Odin and TWRP

0. Flash the stock ROM.
1. FLASH TWRP
2. TWRP -> wipe data
3. Reboot recovery to enabled wiped /data.
4. TWRP -> Install no-verity
5. TWRP -> Install magisk
6. Reboot.

• Android Tools for obtaining root permission

Tools to download:

• TWRP
• magisk release github
• no-verity-opt-encrypt All versions

Reference:

• jp: get root by magisk without twrp.
• Gigaho: galaxy s8, SC-02J
  Android7(AQL1), magisk-v16.4, no-verity-opt-encrypt-6.0.zip,
• Gigaho: galaxy s9, SC-02K
  Android8(Oreo), magisk-v17.1, no-verity-opt-encrypt-6.0-star.zip,
• Youtube: How To Root Samsung Galaxy S8 & S8 Plus on Android 9.0 Pie _TWRP_Tutorial
• henachoko memo galaxy note 9.
  comment: Oreo was possible to obtain root but Pie is never successful. So I came back to Oreo again.
• XDA: FusionLeo(Obsolete)
• XDA: Japan version support now!
• XDA: samsung-galaxy-s8-root-snapdragon-sampwnd.3659305
• SM-G950D, SuperSU

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