when I try to install the twrp recovery with adb I get the following error
PS C:\adb> fastboot flash recovery twrp.img
target reported max download size of 536870912 bytes
sending 'recovery' (16498 KB)...
OKAY [ 0.526s]
writing 'recovery'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 0.532s
PS C:\adb>
PS C:\adb> fastboot flash recovery twrp.img
target reported max download size of 536870912 bytes
sending 'recovery' (16498 KB)...
OKAY [ 0.526s]
writing 'recovery'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 0.532s
PS C:\adb>