SN3500 Service Bulletins and Service Information Letters

To download the latest software for the SN3500 please use the following form: 
Software Update Download

SIL 3500-21: Software version A4.07 for MOD A - 10/8/2014

SIL 3500-20: MOD A and software version A4.06 - 1/24/2014

SIL 3500-19: Flux gate failure annunciation - 8/14/2012

SIL 3500-18: Software version 4.05 - 3/2/2012

SIL 3500-17: Software version 4.04 - 12/5/2011

SIL 3500-16: Software version 4.03 - 11/30/2010

SB 3500-15: Software version 4.02 - 6/4/2010

SIL 3500-14: Software version 4.01 - 8/26/2009

SB 3500-13: Display discoloration - 8/20/2009

SIL 3500-12: Software version 4.00 - 5/27/2009

SB 3500-11: Software version 3.06 - 12/8/2008

SIL 3500-10: Software version 3.05 - 9/16/2008

SB 3500-09: End of life - SN3500 replacement backlight - 8/19/2008

SIL 3500-08: Typographical error on TSO nameplate - 8/20/2008

SB 3500-07: SN3500 interfaced with WSI datalink weather receiver - 4/22/2008

SIL 3500-06: Software version 3.02 - 11/19/2007

SIL 3500-05: Interfacing with Garmin GNS 400W/500W series receivers - 3/7/2007

Note: Software version 3.02 and higher allows display of GPS approach vertical deviation without the addition of the analog lateral and vertical deviation wiring described in this SIL. 

SIL 3500-04: Software version 3.01 - 11/29/2006

SB 3500-03: Software version 3.00 - 12/5/2005

SIL 3500-02: Software version 2.01 - 9/20/2005

SIL 3500-01: Display color quality - 8/12/2005