I have a Samsung LC-11 4G Mobile Hotspot. I'm not sure how old it is, as I have it through work.
Since I got it, it's had an issue where it will not stay turned off. If I turn it off (by holding the power button a few seconds), it powers down and then usually immediately turns back on. Sometimes when I turn it off it will stay off for awhile, but it comes back on eventually - per my observations, usually within about ten minutes.
I've taken to removing the battery when I want to turn the unit off (annoying because the battery cover is really difficult to remove). If I remove the battery, the hotspot usually turns back on immediately when I put the battery back in. Again, sometimes it doesn't turn on immediately, but it turns itself on within about ten minutes of putting the battery back.
I've tried updating the firmware, which did not seem to make a difference. I've also tried browsing through the admin interface and changing a few settings, but nothing helps.
Has anybody else seen this before? Thanks!