CONFIDENTIAL: PRODUCT UPDATE REPORT TO: Product Management Team / Quality Assurance FROM: Navigation Systems Division DATE: October 26, 2023 SUBJECT: Release Report – Western Europe SD Sat Nav v4.1 Update
1. Executive Summary This report details the deployment and content of the Western Europe SD Sat Nav v4.1 software update. This release is a mandatory maintenance update focused on map accuracy, routing stability, and hardware compatibility for legacy and current generation SD-based navigation units. v4.1 supersedes the v4.0 release, which exhibited intermittent routing lags in high-density urban zones. 2. Release Overview
Product Name: Western Europe Navigation Suite Version: v4.1 Media Type: Secure Digital (SD/SDHC) Target Region: UK, Ireland, France, Germany, Benelux, Spain, Portugal, Italy, DACH region, Nordics. Status: Released to Production
3. Key Update Highlights A. Map Data Updates (Q2 2023 Snapshot) The cartographic database has been updated to reflect road network changes effective from the second quarter of 2023. western europe sd sat nav -v4.1- update
New Road Infrastructure: Added coverage for recently opened motorway sections, including sections of the A14 in Portugal and updated A9 configurations in Germany. POI Database: Points of Interest database expanded by 12%, including new Electric Vehicle (EV) charging station locations and updated speed camera databases for France and the UK. Address Correction: Rectified geocoding errors in rural Spain and Southern Italy reported in v4.0.
B. Software & Routing Optimizations
Algorithm Refinement: Recalibrated routing algorithms to prioritize fuel efficiency on motorway journeys. Bug Fix (Critical): Resolved the "Calculation Loop" error that occurred when calculating routes across ferry crossings in the Baltic Sea region. TMC (Traffic Message Channel) Stability: Improved decoding speed for RDS-TMS signals, resulting in faster re-routing during congestion events. Status: Released to Production 3
C. Hardware Compatibility
v4.1 includes updated firmware drivers necessary for read/write stability on newer vehicle head units. Backward compatibility maintained with vehicles manufactured from 2010 onwards.
4. Known Issues & Resolved Bugs | Issue ID | Description | Status in v4.1 | | :--- | :--- | :--- | | BUG-402 | System freeze when searching for "Airport" POIs in Paris. | Resolved | | BUG-410 | Spoken street names incorrect for Dutch language setting. | Resolved | | BUG-415 | SD card unmounting on rough terrain (vibration sensitivity). | Mitigated (Improved caching) | | ISS-005 | Hybrid engine start-stop causing momentary nav reset. | Known Issue (Hardware limitation) | 5. User Installation Instructions The update is designed for user installation. The following steps must be communicated in the release notes: New map data found. Install?"
Ensure the vehicle ignition is in the "Accessory" or "On" position. Insert the v4.1 SD card into the navigation slot. The system will prompt: "New map data found. Install?" Select Yes . Do not turn off the vehicle until the confirmation screen appears (approx. 3-5 minutes depending on the unit). Note: Previous user data (Home address, Favorites) will be migrated automatically during the update process.
6. Quality Assurance Summary The QA team conducted regression testing across 14 hardware variants.
