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  1. Dear All, I am writing to you because I am experiencing problems with uploading code to CC3200 module. I have purchased the RedbearLab WifiMicro Kit (http://www.exp-tech.de/en/redbearlab-wi-fi-micro-kit) which worked for a few uploads but after that I had the following error: //--------------------------------------------------------------------------------------------------- Sketch uses 2,936 bytes (1%) of program storage space. Maximum is 262,144 bytes. Can't open device Opening COM5 Triggering bootloader.... Getting storage list Bootloader Version: 4 Silicon version ES1.32 or higher Bootloader version is 2, 1, 4, 0 It's a CC3200 device: PG1.33 or higher Switch UART pinmux to APPS --- Connection failed trying to reconnect... (1 attempt) Switch to NWP bootloader complete Load common boot command for PG1.33 or higher Bootloader version is 2, 0, 4, 0 BlockSize is 4096, number of blocks is 16 erasing 13 blocks starting from 0 erasing file "/sys/mcuimg.bin" deleting file "/sys/mcuimg.bin" erase file completed Downloading file "/sys/mcuimg.bin" with size 2936 .Download complete DEBUG cc3200prog.c:2667: write failed DEBUG cc3200prog.c:2673: write failed DEBUG cc3200prog.c:2679: write failed DEBUG cc3200prog.c:2685: write failed //--------------------------------------------------------------------------------------------------- After a few uploads both the WifiMicro and the MK20 Usb dongle stop functioning. I cannot see the MK20 at the Com Ports anymore. So, instead of using the MK20 to upload code I used the FTDI Friend by Adafruit and I connected (GND, CTS, VCC, Tx, Rx, RTS) of the FDTI to the corresponding pins of the WifiMicro (GND, NRST, VDD, Rx, Tx, D13) http://discuss.redbear.cc/t/cc3200-wifi-micro/897. Unfortunately I am getting the following error in uploading ... Any help will be really appreciated! Best, George //---------------------------------------------------------------------------------------------------- Energia: 1.6.10E18 (Windows 8.1), Board: "RedBearLab WiFi Micro w/ CC3200 (80MHz)" Sketch uses 22,576 bytes (8%) of program storage space. Maximum is 262,144 bytes. Opening COM7 Can't open device Triggering bootloader.... Trigger bootloader failed. Retrying... (1 attempt) Trigger bootloader failed. Retrying... (2 attempt) Trigger bootloader failed. Retrying... (3 attempt) Trigger bootloader failed after 3 attempts Failed to trigger bootloader An error occurred while uploading the sketch //----------------------------------------------------------------------------------------------------