У вашего броузера проблема в совместимости с HTML5
It is shown as flashing the GPS Junsun D100 updating the initial load image. precautions:
1 - Having loaded the GPS 100%. Flash with GPS connected to power.
2 - Use good quality SD memory about 2/4 Gbytes.
This process can disable your GPS.
ME DID NOT BLAME IF SOMETHING GOES WRONG.
Where you locate an firmware?
Firmware without bluetooth.
https://www.dropbox.com/sh/eninofzoma41rt9/AAC5fxOy2gxaekt9ToJGq6Rwa?dl=0
Firmware with bluetooth.
https://www.dropbox.com/s/e41n5dr4j62c91c/D100AV%E5%A4%9A%E5%9B%BD%E8%AF%AD%E8%A8%80%20-%20JUNSUN.zip?dl=0