bootloader unlocked and usb debugging set up. system is on android 9.
[username@device ~]$ fastboot devices
ZY2257XPNN fastboot
[username@device ~]$ fastboot flash boot /home/username/Downloads/softwaregarbage/e-2.8-a14-20250224470211-community-payton.zip
fastboot: error: Failed to identify current slot
[username@device ~]$ fastboot getvar current-slot
(bootloader) current-slott: not found
getvar:current-slot FAILED (remote: ββ)
Finished. Total time: 0.001s
any ideas? sorry if my formatting is poor or if this is in the wrong section. thanks in advance!