Provisioning Cisco Cius - which MAC address to use?

Cisco Cius uses two addresses: Ethernet MAC and Wireless LAN MAC. When adding Cisco Cius to the Cisco Unified Communications Manager, it must be provisioned using the Ethernet MAC address.

http://www.cisco.com/en/US/docs/voice_ip_comm/ccmcd/admin/9_2_2/english/CIUS_BK_C6A798E7_00_cisco-cius-administration-guide_chapter_01.html#CIUS_TK_C274B913_00

Taking Screenshot on Cisco IP Phone and Cius

Try to access this link from your browser:

http://your-ip-phone-address/CGI/Screenshot

Enter your end user username and password, you will see the phone screenshot in your browser.

It is working for both IP phone and Cius.

Factory Reset a Cisco Cius

There are several reasons that you need to factory reset series, you will know the reason when you need to factory reset it.  :)
These are the steps
1. Power down the device.
2. Keep the settings key and back key on the device pressed(the outer 2 keys at the bottom of the device) and power it up.
3. You will see that it powers on and a red LED next to the front camera will start blinking.
4. Once it starts blinking press the volume buttons + and - at the side of your device for 6 times alternately. i.e., + - + - + -
5. Once this sequence is pressed, you will see a solid red light for a while and this confirms that the factory reset is going on.
6. After the reset is done the device will boot up.