Today, I have upgraded the WIFI firmware on my UC5550 Dev Board
Upgrade was successful but I reload my firmware
If I press Sys A - Reset : board appears as STMDevice in DFU mode
If I press Sys B - Reset it appears as COM and I can Erase - Reload the bootloader (2.04)
After board reset, the UC5550 never appears in the Debug TAB of the TinyCLR Config. I have a COM3 and get a communication failure
I could finally after severto reload the firmware using Tera Term. The Tera Term
Found that the latest bootloader version for the UC5550 on the download section is 2.0.5. The update using the ‘Update to Latest’ is 2.0.4.
I did a manual Update and got the v2.0.5 installed.
From there, the UC5550_UC5550 appeared in the Debug Tab and I could update the firmware.