Hello,
I have been trying to upload a program and continually get the error; Timed out waiting for acknowledgement from device. Failed to upgrade target. No data received on serial port.
I have tried burning Bootloader but get the same above error message. I have tried this procedure on 2 - nRF52832-DK boards, an Adafruit Bluefruit Feather nRF52832 and a personal project using an nRF52832 MDBT42Q-512KV2. I have tried with both a Mac and PC. I am using Bootloader "0.3.0 SoftDevice s132 6.1.1. Furthermore I have made attempts with J-Link for Bluefruit nRF52, Bootloader DFU for Bluefruit nRF52 using Arduino 1.8.12. I have used various versions of Adafruit nRF52 versions through Board manager. Furthermore I have tried programing using a command prompt on both the PC and Mac. I have used multiple Serial to USB cables.
That about sums it up. The only thing I can get to intermittently work is burning the bootloader to a nRF52832-DK board that will the only accept one upload of a program. The I try to upload another program I get the same above error until I burn the bootloader again. It will then accept a program but only once. How strange!!! - this process only works on one DK board.
Anything suggestions on what to do next to get things moving ahead?
I appreciate any feedback you may have.