Published: May 2026. Valid for 7004t-lm-v3 firmware version 3.0.x to 3.2.x.
umount /mnt Type reboot -f . When the system restarts, log in as root with no password . Immediately set a new password: 7004t-lm-v3 password reset
cat /proc/partitions Look for mmcblk0p2 or sda2 (the writable overlay). Mount it: Published: May 2026
mount /dev/mmcblk0p2 /mnt Navigate to the shadow file within the overlay: prompt. At the U-Boot prompt
vi /mnt/upper/etc/shadow Find the root line (e.g., root:$6$... ). Replace the hash with:
Hit any key to stop autoboot: 3 Press Ctrl+C repeatedly. You should see a => prompt. At the U-Boot prompt, enter:
Save and exit. Then unmount: