I use a laptop as my main home computer, but like a full size keyboard - so use a wireless jobbie made by Targa GmbH and sold in the UK by Lidl under the Silver Crest brand.
I've had this keyboard for nearly a year and, a couple of days ago, it suddenly stopped working - in the middle of typing a sentence! A wireless mouse is part of the same setup (both talking to the same USB dongle) and the mouse still worked ok but the keyboard was completely dead. I checked the batteries, which were ok - fitted some news ones just in case - still nothing.
Since the thing has a 3-year warranty, I rang the Silver Crest/Targa helpline (London number, but sounded like a German who answered) for advice.
They said that the keyboard probably needed resetting, and to remove the batteries for 12 hours and then replace them and try again. My reaction was a bit like Naaman's (in the Bible) when told to bathe 7 times in the Jordan to cure his leprosy. Anyway, what the hell - I decided to give it a go. When I put the batteries back in 12 hours later - blow me, the think burst into life again - and I'm using it to type this.
Has anyone got any clues as to what was wrong with it, and why removing power for 12 hours fixed it? Could I have speeded up the process by shorting the battery connections? If this is a common problem, shouldn't the makers fit a re-set button of some sort, and refer to it in the user manual?