This pen worked great for about 3 weeks. Then he began to"not work". I can't say for sure if it's a connection error, an inability to actively provide feedback to the tablet, an inability to read the screen, etc. There is no indicator on USI pens without a power button or other physical button/indicator when the device is working. not only serves as a paperweight, so that it is not possible to determine the type of error without destructively opening the pen. The stylus didn't work for about a week and suddenly started "writing" after I tapped the tablet screen about a dozen times. Then it stopped working at all. I suspect these devices are prone to internal failures stemming from poor circuit wiring OR are prone to magnetic damage one way or another - most tablets have magnets to hold the case/keyboard in place . Whatever the case, judging by Revain's reviews, this is clearly a common problem and Penoval should fix it. I highly doubt they care. I'll be happy to update my review if I'm wrong.
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