quick tip for those who have a phone or tablet without phone service, so who keep it in airplane mode to increase battery time: when the battery runs out, and you charge it back up, often you find it has lost the time and date, right? well, to get that back quickly and accurately, where there's cell service nearby, is to simply take it out of airplane mode for a second or two. almost instantly you will see the time change, which means the date has been correctly updated as well. put it right back in airplane mode; you're done!
last updated 2015-12-25 22:27:59. served from tektonic.jcomeau.com