Samsung Galaxy Z Flip is very vulnerable to dust, teardown shows

Samsung's Galaxy Z Flip isn't officially dust-proof, but Samsung took some measures to make it harder for dust to penetrate into the device, including placing little dust-repelling brushes into the hinge.  But the brushes don't do a particularly good job of stopping dust from entering the device, at least according to the experts at iFixit, who tore the phone down to bits and tested its dust-repelling properties.  To do this, iFixit used a simple experiment: They placed the phone into a bag together with a bunch of easy-to-spot purple dust, and shook the bag for a few seconds. If the dust entered the phone, it would be visible once it was opened, and sure enough – there it was, in copious amounts.  Read more...More about Samsung, Teardown, Samsung Galaxy Z Flip, Tech, and Smartphones