power on/off loop- no boot
Lenovo Thinkpad T14 Gen 1 (soldered RAM)
When I press the power button the power button and keyboard lights turn on briefly, then shut off. This will happen again and again unless I fully shut off the computer. There is nothing on the screen. The fans aren't running. There is no beeping.
I've tried plugging it in while powering it on, pressing the pinhole reset button, and holding the power button down for 60 seconds.
It's been doing this over and over for an hour. I'm going to open it to see if the battery is removable, but honestly I'm not sure what else to do. I just bought this Thinkpad a few months ago because my Ideapad was doing something similar. Is this a problem with all Lenovo products or is it user error (or luck?)