Look for dimples in the wall.
How to hang a tv on drywall without studs. This is a great video for the do it yourselfer home owner. Pull the mount off the wall and hold a level along the marks to make sure your tv will hang straight. Here’s how to find a stud in the wall quickly and easily, with or without a stud finder:
Locate the nearest light switch or power outlet. Attach the brackets to the back of the tv. This tv mount comes with all the hardware that is needed to attach all tvs.
The mounting plate can also. Put the mount against your wall so it’s level and mark the holes that line up with the studs. Mark the holes where you intend to drill.
You need to make sure you have the right plate along with anchor screws, a toggle anchor, toggle bolts, pointed molly bolts, and drywall anchors. There are enough screws to ensure that it is. Use the screws to replace the toggles, attach the plywood or the mounting plate, tighten the screws to the wall and the plywood carefully, and ensure it’s secured once you.
Use windows as a guide.