Hi Joseph,
Here's most likely why you are seeing that error;
Hardware Updates
The hardware updates improve the compatibility of internal phone components.
The following tables list the updated hardware versions that require this release.
Phone | Hardware Version |
---|
Cisco Unified IP Phone 7942 | 15.0 and higher |
Cisco Unified IP Phone 7945 | 13.0 and higher |
Cisco Unified IP Phone 7962 | 15.0 and higher |
Cisco Unified IP Phone 7965 | 13.0 and higher |
Cisco Unified IP Phone 7975 | 12.0 and higher |
Cisco IP Phones 7942, 7962, and 7975 manufactured with hardware versions as mentioned in the table above must run Firmware Release 9.3(1)SR1 or later. The phone firmware does not allow the phone to be downgraded to releases earlier than Release 9.3(1)SR1.
Cisco IP Phones 7945 and 7965 manufactured with hardware versions 13.0 and higher must run Firmware Release 9.3(1)SR3 or later. The phone firmware does not allow the phone to be downgraded to releases earlier than Release 9.3(1)SR3.
From;
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/7900_series/firmware/9_3_1SR4/english/release_notes/P790_BK_RF3660D6_00_rn-9_3_1sr4-7900-series/P790_BK_RF3660D6_00_rn-9_3_1sr4-7900-series_chapter_00.html#P790_TP_H10D10F2_00
Go Flames Go!!.......and Flyers too :)
Cheers!
Rob