![twrp - Lg Aristo 2 Fastboot flash recovery - FAILED (remote: 'unknown command') - Android Enthusiasts Stack Exchange twrp - Lg Aristo 2 Fastboot flash recovery - FAILED (remote: 'unknown command') - Android Enthusiasts Stack Exchange](https://i.stack.imgur.com/MTUIn.png)
twrp - Lg Aristo 2 Fastboot flash recovery - FAILED (remote: 'unknown command') - Android Enthusiasts Stack Exchange
![samsung - Fastboot failing with error: FAILED (remote: unknown command) - Android Enthusiasts Stack Exchange samsung - Fastboot failing with error: FAILED (remote: unknown command) - Android Enthusiasts Stack Exchange](https://i.stack.imgur.com/BEdWb.jpg)
samsung - Fastboot failing with error: FAILED (remote: unknown command) - Android Enthusiasts Stack Exchange
Fastboot: Unknown error: downloading 'boot.img'...OKAY [ 0.555s]booting... FAILED (remote: unknown command)finished. total time: 0.569s · Issue #254 · ubports/ubports-installer · GitHub
![FAILED (remote: device is locked. Cannot flash images) Unknown Command - ADB Fastboot TWRP LG - YouTube FAILED (remote: device is locked. Cannot flash images) Unknown Command - ADB Fastboot TWRP LG - YouTube](https://i.ytimg.com/vi/ek0E6AWwlUs/maxresdefault.jpg)
FAILED (remote: device is locked. Cannot flash images) Unknown Command - ADB Fastboot TWRP LG - YouTube
![samsung - Fastboot failing with error: FAILED (remote: unknown command) - Android Enthusiasts Stack Exchange samsung - Fastboot failing with error: FAILED (remote: unknown command) - Android Enthusiasts Stack Exchange](https://i.stack.imgur.com/bF3tP.jpg)
samsung - Fastboot failing with error: FAILED (remote: unknown command) - Android Enthusiasts Stack Exchange
![How To Fix FASTBOOT errors - FAILED (remote: unknown command), FAILED ( command write failed) etc. - YouTube How To Fix FASTBOOT errors - FAILED (remote: unknown command), FAILED ( command write failed) etc. - YouTube](https://i.ytimg.com/vi/NyoERxSzRTw/maxresdefault.jpg)