Hi @Nesrine.JLASSI Here is the bin file compressed as zip. But I think it is nothing with the bin or hex file. The memory erase at the beginning fails.Best regards,Volker
When comparing to my view there are additional parameters shown in your screenshot (at Automatic Mode>Option bytes commands)Maybe the additional parameters solve the problem?
Here is the log-output when connecting to the bootloader:11:35:50 : Port configuration: parity = even, baudrate = 115200, data-bit = 8, stop-bit = 1.0, flow-control = off
11:35:50 : Activating device: OK
11:35:50 : Chip ID: 0x447
11:35:50 : BootLoade...
