Hi, I have some 3rd party Nano's which I'm getting nowhere with. I've been through these forums, Googled and Reddit with no joy. All other Arduino devices work ok for me (UNO, other Nano's, ESP32) and I'm using the same cable that works fine for others. I have tried everything with 3 of these boards and on 2 different computers. The board has the word "Tiny" on the front and the back is just tracks with no other chips. When plugged in directly to USB it shows in Device Manager under Other Devices as "Unknown Device". I've previously installed CH34 drivers but uninstalled and re-installed just to be sure. I know I've got CP210x drivers on there recently too, not sure if they would be relevant. When plugged into an UNO to install a bootloader it comes up with the 0xF0 error - I've tried changing it to 14 with no joy either. I've tried through the standard pins and the group of 6 at the end. I've gone through all of the things I can find from searches - double clicking the reset button etc. and I'm completely stuck at this point. Any help is appreciated.

Maybe you should post a link to where you purchased this board, and some close-up, sharp, bright photos of both sides of the board. Try to capture the writing on the main chip so others on the forum can read them, if possible.

[image] reborne: The board has the word "Tiny" on the front [image] PaulRB: Maybe you should post a link to where you purchased this board, and some close-up, sharp, bright photos of both sides of the board. +1 to @PaulRB "Tiny" Nanos are not common Nanos. They come equipped with an Attiny 88 chip instead of the traditional 328P. If you wat to go somewhere with these boards you´ll need to learn how program them with the Arduino IDE. It´s not that hard. This Video might be of your interest. EDITED PS: Welcome to the Forum!

Some Arduino clones need the CH340 driver, instead of the official one. moderator edit: spam removed

[image] reborne: When plugged in directly to USB it shows in Device Manager under Other Devices as "Unknown Device". What are the VID and PID of that unknown device? Right click he unknown device in device manager, go to the details tab and check the hardware ids.

Many thanks - I've quickly looked at the video and bookmarked it for the future. I ordered some replacements (with bootloader!) the day I posted this and they've arrived, so I've shelved this for now and will come back to it when my patience has restored! :slight_smile:

Arduino Nano Unknown Device

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Arduino Nano Unknown Device

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