I received this product with no physical problems. I read that I need a fairly powerful power supply which should be at least 5V 2A. So I've seen on forums that people were having trouble with 2A and it would shut down randomly when charging the USB bus or part of the Arduino board where it would exceed 2A. I connected it to a desktop power supply and ran it at 5.1V (to compensate for cable losses) 3A. It worked fine and windows set up and closed once to play around with the next day. Remember that I duly closed it per the support people's suggestions on the forums. I turn it on the next day and I have a solid red light with a blue light indicating a corrupted BIOS. I saw this was a common problem no matter what power supply was used. I do not recommend this board for any kind of development because this board is unstable and the BIOS can be easily corrupted. They told me to spend more money on a flasher I don't have. Even if they're not expensive, how many times do I have to deal with the same problem and how often does it keep getting worse? I am returning this product because I don't even want to handle it.
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