LG Leon H340N fastboot not working

[ginosasia]

When I want to flash recovery by fastboot I get this, why is it?

C:\Program Files\Minimal ADB and Fastboot>fastboot flash recovery c50.img
target reported max download size of 268435456 bytes
sending 'recovery' (11076 KB)...
OKAY [ 0.500s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time: 0.632s

 

[Gamerdude96835]

Flash the the file with flashify from the playstore