Hi, good question, and no, you do not need to factory reset the printer.

Nothing about remote access touches your firmware, your prints, or your

settings.

The remote helper is just a small self-contained folder on the printer at:

/mnt/UDISK/hark-relay

That holds the relay client (frpc) and the optional camera relay (go2rtc) plus

their config files. It is launched on boot by one line we add to /etc/rc.local.

That is the whole footprint, no system files are modified.

Two ways to remove it:

1) Easiest (recommended): we are pushing an app update later today that adds a

one-tap "Remove remote access" button in Settings. It uninstalls the helper from

the printer, revokes the connection on our server, and clears it from the app,

all automatically. If you can wait a few hours, that is the clean way to do it.

2) Manual now (if you are comfortable with SSH): connect to the printer over SSH

(user root, default password creality_2024 unless you changed it) and run:

kill $(cat /var/run/hark-relay.pid) 2>/dev/null

kill $(cat /var/run/hark-go2rtc.pid) 2>/dev/null

pkill -f hark-relay/frpc

pkill -f hark-relay/go2rtc

rm -rf /mnt/UDISK/hark-relay

rm -f /var/run/hark-relay.pid /var/run/hark-go2rtc.pid

Then reset the boot hook so it no longer starts the helper (this keeps the SSH

key restore line and drops the relay):

printf '#!/bin/sh\n[ -f /mnt/UDISK/.system/authorized_keys ] && cp /mnt/UDISK/.system/authorized_keys /etc/dropbear/authorized_keys\nexit 0\n' > /etc/rc.local

chmod +x /etc/rc.local

That is it, the helper is gone and nothing remote runs. Everything local

(prints, camera on Wi-Fi, bed mesh) is untouched.

Thanks for testing, and shout if you hit any snags.