We received a very helpful replay from the Espressif RF Support group.

Basically, for the ESP32-C3 you should burnt the bootloader.bin @ 0x0 not 0x1000 as shown in the documentation

Problem solved!

Thanks very much!

We're an OEM and we're trying to perform BLE DTM testing on the : ESP32-C3-MINI-1U-N4 Note that we've attached screenshots in an attached PDF file. We're using: EspRFTestTool_v3.6_Manual We're trying to load these files: \\sharebear\sq\sqwork\technical\reference\Datasheets\Espressif\RF-Test\ESP_RF_T...