Chez Banggood il y a un peu de reponse :
http://www.banggood.com/fr/Eachine-Micr ... 75953.html" onclick="window.open(this.href);return false;
Et ceci :
**important** this is a SPRACING F3, not SPRACING F3 EVO, so make sure you select the correct firmware when flashing in BF or CF. mine comes with BF2.9 loaded, I unknowingly flashed it with SPACING F3 EVO firmware! making the CF unable to connect to BF after the flash. initially i thought is a driver issue, so tried reinstalled vitual USB, STM32, etc, until i realized this is a F3 controller, not F3 EVO. So i need to short the BL pins and flashed it with the SP F3 firmware. moreover, i was using a small screw driver to short the BL pins, i think i need around 20 attempts before successfully re-flashed it with the correct firmware
Il faut donc partir sur le SP racing F3 et pas le EVO