Next, under “manufacturer” click “Undefined Vendor”.Scroll down the list, and pick “Universal Serial Bus Devices”.Click “Let me pick from a list of available drivers.”.Go back to the “driver” tab, and click the “update driver” button.We now have our device, and therefore can be reasonably sure the rest of the procedure will succeed.) You will not see this unless your Longan Nano is properly attached to your computer and also in boot loader mode. (28E9:0189 is the VID and PID part of the USB descriptor for the Longan Nano in DFU boot loader mode. “Value” display box should read “USB\VID_28E9&PID_0189”.Select “Hardware Ids” from the “Property” combo box/list.Find the “unknown device” (under “other devices” for me, but you may have to search.).Click the start/windows button, and start typing “device manager.” Open it. ![]() If you get nothing from this first block of steps, then you have something else going on you need to sort out first. ![]() We do this by putting the nano in boot mode (hold boot button while plugging it in) then looking for the expected Product and Vendor ID’s in device manager. Because of the possibility of bricking your WIndoze PC by F-ing with installed device drivers, we really want to sanity check that the Nano is actually getting connection, and there isn’t something physically wrong with it. Try the following if this is happening to you.īefore we begin, a note. 2+ years later and I believe have the solution for everyone.
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