Well
Ok, thanks for your help.
First on all, I use a 12V 2Amp power supply.
- Tried with 4 differents USBKeys all formated in FAT32 with U:\STONE\bin\stoneHMI.bin
- Tried with jumper in the good position
- Tried with 2 differents panels (I have 20 of them, so let me know if I must try others…)
Second, here what I did:
1. Put the jumper to the good position as you suggest

2. Plus the USB Drive to the port. I have tried with an extension cable also without succes.
3. Plug the power
4. The default page appear, and nothing seems to append ….

Have you any others ideas ?