When you take a pic with a modern camera, including phones, the camera puts orientation information in the picture file. And then when modern software reads the pic it orients the pic properly.
Unfortunately this forum's software, like most forum's software, doesn't read the orientation data. So you have to orient the pic in other software and then save it. Most times I've been successful opening a pic in Photoshop, making a minor change, and then saving it. That usually reorients it properly.
Gary, AKA "Gary fellow":
Profile
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI