Two things first, because everything below assumes neither has happened. If liquid has been spilled on it, do not connect it to power at all. Leave it unplugged and off … Read more: Mac Won’t Turn On? The 4 States, and Which Reset Applies to Your Chip

Press the power button, then press Caps Lock and watch for its light. If the light responds, the machine has power and its firmware is running, so the fault sits … Read more: Laptop Won’t Turn On? Four Faults That Look Identical From the Chair

If your Hisense TV won’t turn on, start by looking at the standby light, not the remote. No light at all usually means the TV isn’t getting power. Hisense’s Roku … Read more: Hisense TV Won’t Turn On: What the Standby Light Tells You, and What to Try Next

Do not assume you know what the standby light is telling you, because the convention is not shared. Samsung documents a lit red light as meaning the set is OFF, … Read more: TV Won’t Turn On? The Standby Light Means Different Things by Brand

Take off any screen protector, wipe the glass with a dry microfiber cloth, then restart the phone. Those three steps take a minute and clear the causes that cost nothing … Read more: Bright Spot on Your Phone Screen? Six Faults, and the Test That Tells Them Apart