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Last week I got my new Arduino nanao ble sense. Today I was executing a code on it which reads every sensor data on it and print it on serial monitor. I changed some parameters in my code and upload my code, while the code was uploading I opened the serial monitor and code was fully uploaded. Suddenly i got an error on terminal saying cannot find upload port. After that my Arduino board was never detected by the system. I tried to $lsusb to check whether the device is mounted on usb port but it didn't show up.... I tried on different PC and even that not detected... Plzz let me know if my hardware is damaged in someway? OR is there a solution to this???

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All that has happened is that you don't have a sketch running. When you have a board with a native USB connection a sketch has to be running to make that USB connection be anything.

You corrupted your sketch, so it's not executing.

All you need to do is manually trigger the bootloader to install a new sketch. According to the "Getting started" page:

NOTE: If the board does not enter the upload mode, please do a double press on the reset button before the upload process is initiated; the orange LED should slowly fade in and out to show that the board is waiting for the upload.

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  • Reset? Power cycle?
    – JRobert
    Commented Jun 25, 2021 at 15:45
  • @JRobert Looks like double-reset.
    – Majenko
    Commented Jun 25, 2021 at 16:00
  • @Majenko How do I manually trigger the bootloader for Arduino nano BLE can't find any thing about on get started page or any other place. BTW thanks for Answering!!! Commented Jun 25, 2021 at 17:16
  • @TauhidKhan I told you how in my answer - copied and pasted from the getting started page here: arduino.cc/en/Guide/NANO33BLESense#upload-the-program - look under "Upload the program" in the block in italics. Press the reset button twice.
    – Majenko
    Commented Jun 25, 2021 at 19:44

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