@throwaway69
It started happening randomly while the device was on. It would hard shutdown then come back to the Planet Computers splash screen, then hard shutdown again. I went into the recovery menu and booted the stock Android slot, and it came up briefly. At that point I put it in on the supplied charger, with the supplied USB C cable and set it on a table to leave it in peace.
I left the room but had to go back in there for something, and smelled that distinct hot burning plastic smell. The nasty hateful stink… where there’s no question that something bad is happening. I grabbed the Cosmo and disconnected the charger, and it was so hot that it burned my fingertips. I could literally see smoke pouring out of the right hand side USB C port, so I grabbed it with a towel and ran for the front door. I set it on a workbench outside and saw it starting to swell.
The battery swelled so much that the back cover was almost completely free of the clips, so I popped it the rest of the way off with a spudger, in an attempt at disconnecting the battery… hopefully salvaging the device itself. At that point I saw at least two SMD components (three pin, so I think they were regulators) practically welded to the back panel, and smoke was bellowing out of the device, so I cut the (woefully inadequate) battery ribbon cable with shears in an effort to stop the short circuit, but by that time it was too far gone.
I picked it up with a shovel and carried it to the end of the driveway, and gently set it in the street. It erupted a few moments later. Catastrophic failure, one of the worst battery fires I’ve ever seen. There wasn’t much left of it, so naturally Planet Computers won’t do anything for me. $700-ish down the toilet.
I keep thinking about what would have happened if I hadn’t had to go back in that room. It absolutely would have caught fire, and very likely set my house on fire, as it was near curtains, bedding and furniture.
I will never buy or use anything from Planet Computers ever again. I take exquisite care of my devices, and the only one I’ve ever dropped was an XZ2… and that wasn’t even my fault. I stored the Cosmo in a Pelican case with custom foam, even… whenever I was traveling or not charging/using the device. I never dropped it, and it looked brand new.
Hilariously, I’m more upset with their abandonment and abysmal support than I am with the fact that the device spontaneously self destructed.
