4

After much frustration in trying things, I came across this forum post which advised: sudo systemctl stop ModemManager.service If this works, disable the service from starting next boot: sudo systemctl disable ModemManager.service It seems like setting ENV{ID_MM_DEVICE_IGNORE}="1" in a udev rule is insufficient.


2

If the WDT program is running when you try to upload a new one, it may be blocking the bootloader. Try holding the reset button while you click the the IDE's upload button, releasing the reset once you see avrdude launch. It may take a few tries to get the button-dance just right. Update: what is avrdude ? It is the program on your PC that uploads the ...


2

There are several different tools for uploading binaries to a Cortex M3. Depending on the board (not chip) configuration, they include (ht: Majenko): dfu-util through an FT232 adapter stm32flash through serial micronucleus through the Micronucleus bootloader stlink through an STLink programmer Many Arduino flavors use a board with some kind of USB or ...


2

On ATmega328p and similar ATmega MCUs with bootloader support, the application is not allowed to write to flash. Only code running in bootloader area of the flash memory is allowed to write to flash. Bootloader area is at the end of the flash and the beginning is set with the BOOTSZ fuses. The write to flash page is done in two steps. First step is deleting ...


2

Try manually resetting the board: Before uploading, run Verify. Hold the reset button and click Upload. Release the reset button. If that worked, your board's reset isn't fried, it just isn't receiving a reset via the serial cable. If it failed, either part of the board or MCU may be damaged; something attached to the board may be inhibiting the reset ...


1

One of the things with the watchdog is that after a watchdog reset it remains active. It has to specifically be turned off - and the bootloader doesn't (IIRC) normally turn it off. If the timeout is too short (shorter than the time taken to upload new code) the watchdog will reset the chip while you're uploading. The only way to turn it off is to ...


1

The board was bad. I just replaced it and it now works. So, to answer my own question, an Arduino board can show up on lsusb and dmesg and yet be faulty. This is what the dmesg output is for a healthy board: [10492.388028] usb 1-1.4: new full-speed USB device number 13 using ehci-pci [10492.500520] usb 1-1.4: New USB device found, idVendor=2341, idProduct=...


1

If the folder is not needed then delete it. The Arduino IDE uses the folders in the library folder to search for library header files (ie. .h files). It expects one library in each folder. When it see's a folder without any header files in it, it will count this as an invalid library.


1

Sounds like you have a bad Arduino ISP board. I've had limited success restoring bootloaders on some Arduinos with my bad USBtinyISP programmer by connecting a 9V power supply to the Arduino in addition to the 5V that the ICSP cable provides. Worth a try. Note that back when my USBtinyISP was working properly I didn't need to attach 9V, the 5V from the ...


1

The Arduino.cc developers changed the bootloader on official Arduino Nanos to communicate at a different speed. Try setting Tools → Processor → ATmega328P (Old Bootloader)


1

I appreciate that this is an old post but I have recently been experiencing this problem. I found that the issue was caused when I had a wireless SD shield attached to the Arduino. Taking this shield off allowed me to upload. This occurred across 5 different Arduino's. After some more testing I found that switching the "serial select" toggle on the ...


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