You can get a telnet on 192.168.1.1 after turning the device on and then pressing the QSS button as soon as the SYS light starts to flash, let go as soon as it starts flashing fast and then telnet in.
remember to set your IP to 192.168.1.2 with subnet 255.255.255.0
=== IMPORTANT ============================
Use 'passwd' to set your login password
this will disable telnet and enable SSH
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BusyBox v1.15.3 (2012-06-20 12:57:06 BST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
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:+: :+: :+: :+:+: :+: :+: :+: :+:
+:+ +:+ +:+ +:+ +:+ :+:+ +:+ :+:+
+#++:++#++: +#+ +#+ +#+ + +:+ +#+ + +:+
+#+ +#+ +#+ +#+ +#+# +#+ +#+# +#+
#+# #+# #+# #+# #+# #+# #+# #+#
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MKII ---------------------------------------------
product release v1.3
with
Backfire (10.03.1, r25408)
isposure (2.8.1.5)
SpeedTest (2.8.1.7)
root@(none):/#