[ROM - DEV] WearOS 2 for Gear S3

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DISCLAIMER

Your warranty is now void (if you still have one).
Read the steps carefully!
I am not responsible for data loss, bricked devices or devices which will need USB soldering!
If you do not know what you're doing, stop here!

DOWNLOAD WearOS 2
DOWNLOAD WearOS 2 (ALTERNATIVE)

Latest Release: 22/06/2022 22:58

BATTERY PERCENTAGE FIX FOR 22/06/2022 RELEASE (CURRENT BUILD):

With latest release (22/06/2022), some people's battery percentage is stucked at the same level and is not updating until reboot. Here is the fix for that. No need to wipe data or do something special. This file contains kernel update only. Just flash directly with netOdin/Odin.

DOWNLOAD KERNEL UPDATE FOR 22/06/2022 BUILD

GEAR S3 FRONTIER/CLASSIC ONLY!! Installed and tested on a few SM-R760 Frontier and get succeed. SM-R770 Classic is also confirmed.

BUT Korean and LTE versions are NOT TESTED. THEY USE DIFFERENT KERNEL CONFIGURATION. IT WILL PROBABLY CAUSE HARD BRICK!! USE YOUR OWN RISK!

BEFORE INSTALLATION

• DISABLE REACTIVATION LOCK
• Charge your watch to 100%
• Keep your device charging while installing firmware
• Have a stable computer with Wifi
• Take note your current Tizen firmware version for going back to Tizen
• Backup all your data
• Keep your watch close to your wireless adapter

INSTALLATION (View Detailed Document Here)

• Flashing process is the same as flashing combination or Tizen firmware
• Wireless flashing takes 15~45 minutes.

1. Extract downloaded zip file to get tar file
2. Enter wireless download mode
3. Switch to AP mode
4. Connect to watch from your wireless adapter
5. Select tar file for AP section
6. Flash

DO NOT interrupt flashing process!
DO NOT shutdown your computer or allow your computer to sleep!
DO NOT enter recovery before WearOS boots completely!


WHAT IS WORKING

• WearOS functions (Notifications, Play Store, Google Account, Assistant etc)
• Always on display
• Bluetooth
• Vibrator
• Bezel (works like crown)
• Tap to wake
• Palm to suspend
• HRM (Hear Rate Monitor - Sensor)
• Sensors (Accelometer, Gyroscope, Light)
• Audio

KNOWN BUGS

• Poor Battery Life compared to Tizen (Old device, new operation system)
• Audio (Low sound level, bad quality)
• HFP calls on watch (Bad noises, distorted sound)
• Some menus on Settings belongs to Ticwatch (just ignore them)
• Offline charging boots device
• GPS is not working
• NFC is not working
• Step Counter is not working
• Some green text above SAMSUNG logo while booting
• Same green text on Wireless Download Mode. It prevents debug messages (Switching to AP mode etc) but functionality is not effected.
• If device goes to TWRP, just click Reboot -> System.
• Selinux is in Permissive mode
• ADB Root is active
• KNOX will be tripped!!

RESETTING WATCH OR CONNECTING NEW DEVICE
NEVER use WearOS settings menu to reset watch!!! It is not tested and may be brick your device.

Option 1: Flash WearOS again
Option 2: Boot to TWRP and Wipe Data (IMPORTANT! Be sure “Use rm -rf instead of formatting” is selected on TWRP settings. (TWRP Settings -> General Settings)

GOING BACK TO TIZEN

1. Find and download your Tizen firmware from internet. (Remember, you took note your firmware version before installation)
2. If you can not find your firmware you can try THIS TIZEN FIRMWARE. (It may has different CSC. Be careful!)
3. Flash

TELEGRAM GROUP
PLEASE JOIN FROM HERE

SOURCES
Github (parasetam0l) for kernel, device tree and other SMDK - Samsung related files.

THANKS TO
TO21Consortium for beautiful SMDK source
YariKartoshe4k for Exynos 7570 kernel source
Biktorgj for Gear S and SSP sensor sources
OneOS for TicWatch WearOS2 system dump
Many other developers I came across with Google search.

@trapecija For SM-R770 Classic feedback