Hardware Support
The following list shows the state of the features of the Samsung Gear Live.
You can report any hardware support issue here. Use the label sprat for issues specific to your watch.
partialDisplay
goodTouch
goodBluetooth
goodHaptics
unknownTilt-to-Wake
unknownAlways-on-Display
goodMicrophone
badCompass
goodUSB
| Model Number | Model Name | Codename |
|---|
| SM-R382 | Samsung Gear Live | sprat |
Warning!
It has been reported that the AsteroidOS UI is currently unusable on the Samsung Gear Live.
Prepare installation
Install ADB & Fastboot
On Linux systems with apt package manager
sudo apt install android-tools-adb android-tools-fastboot
On Windows systems install the Google USB driver
Get the Google USB Driver ZIP
Download this zip file containing ADB & Fastboot from Android SDK
adb-1_0_39+fastboot+ext2simg.zip
Extract the content to a folder of your liking.
Navigate to that folder using the Windows commandline (cmd.exe).
Instructions
1. Unlock your bootloader
Note
Unlocking the bootloader may void your warranty.
The unlock process will trigger a factory reset of Wear OS. Backup any data you do not want to loose.
Installing AsteroidOS requires an unlocked bootloader.
Accessing the fastboot bootloader menu on your watch can be achieved using ADB in Wear OS, as described below in step 1.1.
If you are familiar with the manual method to access the bootloader menu, you can
skip to step 1.3. Those methods are explained on the
useful commands page.
1.1 Enable ADB on your watch
1. Open the settings app
2. Open the System page
3. Open the About page
4. Tap the Build number 7 times to reveal Developer options
5. Open the Settings app again
6. Open the Developer options page
7. Enable ADB debugging
1.2 Reboot to fastboot bootloader mode
Enter the following ADB command in a terminal with your watch connected to USB.
adb reboot bootloader
1.3 Use fastboot to unlock the bootloader
With your watch now in fastboot mode, enter this command in a terminal to start the unlock procedure.
fastboot oem unlock
1.4 Follow the instructions on your watch's screen
Please note again, this may void your warranty and will wipe your userdata.
2. Install and boot AsteroidOS
Choose your installation type
You can now decide if you want to replace Wear OS definitively by flashing the system and boot image. Or try AsteroidOS as a dual-boot by sideloading the AsteroidOS system image and boot it only temporarily. The "real installation" provides the best experience but it is advised to make a backup of your data first. The "temporary installation" is a good way to try AsteroidOS if you don't plan to use it daily and intend to keep your previous OS.
- Real installation
While your watch is in bootloader mode, flash the userdata and boot partitions using Linux:
fastboot flash userdata ~/Downloads/asteroid-image-sprat.ext4
fastboot flash boot ~/Downloads/zImage-dtb-sprat.fastboot
fastboot continue
or using Windows:
fastboot flash userdata %systemdrive%%homepath%\Downloads\asteroid-image-sprat.ext4
fastboot flash boot %systemdrive%%homepath%\Downloads\zImage-dtb-sprat.fastboot
fastboot continue
- Temporary installation
Reboot to Wear OS, re-enable developer mode and ADB debugging.
Push AsteroidOS to the internal sdcard using Linux:
adb push -p ~/Downloads/asteroid-image-sprat.ext4 /sdcard/asteroidos.ext4
or using Windows:
adb push -p %systemdrive%%homepath%\Downloads\asteroid-image-sprat.ext4 /sdcard/asteroidos.ext4
Everytime you want to reboot AsteroidOS from Wear OS, run:
adb reboot bootloader
Then, if you are using Linux:
fastboot boot ~/Downloads/zImage-dtb-sprat.fastboot
or on Windows:
fastboot boot %systemdrive%%homepath%\Downloads\zImage-dtb-sprat.fastboot
3. Enjoy your new OS!
Boot problems
Bootloop of any kind or stuck boot process
Don't panic. None of the commands we advised you to use can damage or brick your watch permanently.
You can always go back to the fastboot bootloader menu, by using the
manual finger combos for your watch.
Verify that you used the correct image files
Some devices like the Asus Zenwatch 2, the Fossil Gen4 models and the MTK6580 watches have more than one system image supplied, for different variants with slightly different hardware. Most watches have a graphical fastboot menu that shows the correct codename for the watch. Others need to be identified using the hardware differences noted above in the install section.Clean your watch and charger contacts
Even in case the fastboot flash process succeeds with no errors, it can still silently fail due to connection problems caused by dirty contacts. Clean the pins and pads with isopropyl alcohol. Ideally using that old toothbrush you keep around for electronics cleaning or a microfiber cloth. Carefully sanding the contacts (e.g. with a nailfile) can help in case of obvious corrosion.Ensure a stable USB connection
Put the watch and your computer on the same flat surface. Try to not move the cable connecting your computer and the watch during the whole flashing process. In case of worn or corroded contacts and pogo-pins that lost their springiness, it might be useful to attach the watch to its cradle or charging cable using duct tape or rubber bands.Repeat the flash process
Some users have reported needing up to five flashing attempts for a successful result.
There is a small chance that the image files were corrupted during download. We do not currently provide checksums for the files. However, if you download the files again under a different filename and then compare them with sha256sum filename, the checksums must match.
Boot gets stuck even after repeated reflash
Congratulations, you might have found a new issue for us to solve. While this should not happen with stable builds, the nightlies are advancing quickly, and are not tested on all watches. You are likely using a nightly build, as the installation pages currently link to it. You can try again and
install a stable build when available.
To help us solve the problem, you could try to collect logs. It is possible that the watch does not show a UI but is already accessible using
ssh ceres@192.168.2.15 or
adb shell in the state the boot process stops. In case SSH connection works, try the following commands to write logs to local .txt files.
ssh root@192.168.2.15 "journalctl" > journal-watch.txtssh root@192.168.2.15 "/system/bin/logcat" > logcat-watch.txt
or, if your watch presents an ADB interface, use the following commands:
adb shell journalctl > journal-watch.txtadb shell "/system/bin/logcat" > logcat-watch.txt
In case no connection is available, it is still interesting to see if the watch leaves any traces in your local dmesg. Try to spot USB related messages in
sudo dmesg -w while the watch is connected and booting. Record the log using the
sudo dmesg > dmesg-local.txt command.
You can share those logs in a new
Github issue tagged with the watch codename. For support chat, you are invited to
join our Matrix channel.
Watch only boots when powered via USB, but shuts off when booted while worn
This is a clear sign of a worn battery that will soon fail. Maybe you should replace it.
The boot process of AsteroidOS uses all cores of a watch to ensure a fast startup. This leads to power spikes during the boot process, which can completely shut down watches with worn out batteries. It has been observed that WearOS can still boot on watches with worn out batteries, but AsteroidOS cannot, depending on the progress of battery wear. However, AsteroidOS can usually still provide a useful 10-20 hours of uptime when the watch is worn once booted while powered up.
Batteries are relatively easy to replace on watches with screwed down backs. Glued back plates usually require creative solutions involving hair driers.
Watch successfully boots into the AsteroidOS user interface, but immediately reboots
This is a known behavior when the battery charge is very low. The watch usually recovers from this condition by simply boot cycling for some time. All watches also charge in fastboot or recovery mode. Letting the watch dwell on the fastboot or recovery menu screen for some time should fix the problem even faster.
Flashing problems
Watch is not detected and all fastboot commands fail
When using Linux,
try prepending sudo to the commands to execute them with root privileges. If that works, you are missing UDEV rules for Android devices that would allow your user to execute the commands. Many package managers provide the android-udev-rules, which avoids the need to manually set up these UDEV rules. If the package is not available on your system, you can follow the instructions at the official android-udev-rules repository.On Windows systems,
this usually happens due to driver issues. If you have installed an Android USB driver other than the official Google USB driver that we link to in the installation fields above, please remove it. Then reinstall the Google USB driver or update it by installing a possibly newer version.
We find that the Linux fastboot drivers are more reliable. It is very easy to create a bootable live Linux USB stick, for example, following these instructions at askubuntu.com, and then follow the above Linux installation commands after booting the live Linux USB stick.USB 3.0 ports
ADB connection works, but fastboot does not?
The
fastboot oem unlock command not working even though the watch could be booted into fastboot mode using
adb reboot bootloader is a known issue on windows systems. It is caused by using a watch manufacturer USB driver with missing fastboot support. Try removing that one and install the
offical Google USB driver we linked above in the install section.
Fastboot command stops with error during the ~5 minute flashing process
Smartwatches are prone to lose a proper connection to their cradle over time due to sweat corroding the watch pins.
Clean the pins and pads with isopropyl alcohol and repeat the flashing process.
Try to ensure a stable USB connection by putting the watch and your computer on the same flat surface. Try to not move the cable connecting your computer and the watch during the whole flashing process. In case of worn or corroded contacts and pogo-pins that lost their springiness, it might be useful to attach the watch to its cradle or charging cable using duct tape or rubber bands.
Fastboot command displays "invalid sparse file format at header magic" when starting to flash the device
This is not a fatal error and can safely be ignored. Fastboot expects images to be in sparse format. When a raw image is supplied like in case of most of the AsteroidOS watches, fastboot converts it to sparse and shows above message.
Fastboot command crashes or hangs at "invalid sparse file format at header magi" (explicitly missing the "c" in magic)
This error occurs when using deprecated fastboot and ADB versions on Windows systems. If you already had adb.exe and fastboot.exe installed and skipped downloading our
supplied ZIP file, please install and try those commands instead. Another reliable source for updated windows ADB and fastboot versions is the
official Google platform tools ZIP file.
