TRIMBLE SURVEY GNSS FIRMWARE WEEK NUMBER ROLL OVER (WNRO) ISSUE

Description and cause of the issue

Trimble GNSS receiver firmware versions <4.30 have reached the end of their lifespan as of 20 August 2023 and should no longer be used. Receivers with firmware versions <4.30 will encounter issues with the date and clocks being off because the GPS week number is incorrect. In order to address this issue, you must update your receivers at a minimum to firmware version 4.30. Any firmware below version 4.30 will have an incorrect week number. Updating to firmware 4.30 will result in an extension of approximately four years before the firmware expires.

Firmware versions ≥4.30 are available for all Trimble GNSS receiver products except the Trimble 5700 Model 1 and 5800 Model 1. As such, Trimble 5700 Model 1 and 5800 Model 1 receivers should no longer be used for practical field work. We recommend retiring these receivers because they will produce wrong dates.

 

Remedial actions:

Contact your local Trimble Dealer for the option code and firmware or please contact the Seiler Survey Technical Support Team with any questions. We can be reached at 844-266-7266 or [email protected]. This allows us to better serve you and will allow your request to be quickly resolved by one of our many experts.

Notice effective as of September 2023 – Trimble Geospatial