I am trying to install custom recovery in my Realme X50 pro 5G device. I had downgraded it's Android version from 12 to 10. I have unlocked the bootloader. Now the last step is to replace the default bootloader by the TWRP. Here I am facing issue.
This command worked.
>>> fastboot flash recovery rec.img
sending 'recovery' (131072 KB)...
OKAY [ 3.350s]
writing 'recovery'...
OKAY [ 0.516s]
finished. total time: 3.872s
But this command is not working.
>>> fastboot boot recovery.img
OKAY [ 3.116s]
booting...
FAILED (remote: unknown command)
finished. total time: 3.130s
Someone please help me to solve the issue.