Axis Telesolutions Inc. offers a variety of warranty options. The one year warranty is an advance replacement warranty protecting against manufacturer defects. You will feel confident in knowing your equipment is backed by a leader in the telecommunication industry.
Yes, here is an example of a helpful document (since we don't know the target firmware version)
Polycom UC Software 4.0.x Upgrade & Downgrade Methods.
This engineering advisory provides you with general information on upgrading to, and downgrading from, Polycom UC Software 4.0.x and the methods you will need to follow.
http://support.polycom.com/global/documents/support/technical/products/voice/upgrade_downgrade_UCS_v4_0_0_ea647361.pdf