Last night, I went to charge my HP Stream 7 before bed. I plugged into the official HP charger using the official HP USB cable that came with my Stream 7. The power icon didn’t change to charging. It stayed at battery, and I didn’t have much left.
Concerned, I rebooted, but that didn’t solve the issue. What did though was a hard reset. I held down the power button for 10 seconds or so. This completely shuts down the Stream 7. After fully shutting down, I saw the large charging icon on the tablet, but couldn’t boot it up. This is normal when the battery is very low and it is charging while off. After 15 minutes of charging or so, the Stream 7 booted up and showed that it was plugged in and charging. Success!