Some 5 V USB power supplies can give weird problems. Here is a link to Trystan's blog on the subject, which does not show up in the site search.
Not all USB power supplies are created the same
Submitted by Robert Wall on Sun, 16/12/2012 - 14:45Some 5 V USB power supplies can give weird problems. Here is a link to Trystan's blog on the subject, which does not show up in the site search.