Dear Client,
New firmware V1.27 had been released for iGS620 for below improvement
1.Improved the stability of OSM map and automatic sleep;
2.Improved some interface display performance；
3.OSM map optimization including partial performance and incomplete road display;
You may upgrade your iGS620 and experience the optimizations.
Related article: Steps to upgrade firmware for iGS620
https://support.igpsport.com/hc/en-001/articles/900001781783-Upgrade-Firmware-for-iGS620
