Fixing a Broken PS4 Button: Troubleshooting Console Activation & Pad Malfunction

Hello, I have the following problem with the pad to ps4. After transporting in a suitcase, he suddenly started turning on the console himself. Ie. when he turns off the console he immediately begins to flash and turn it back on, or when I change it to another one, he immediately activates and a message appears after switching to a damaged pad. In addition, when I press the button marked with a square, it happens as if I pressed the square and the ps button at the same time, which turns on the console. Ie. the pad in the game calls the function under the square button, but at the same time I get out of the game to the main console menu.

Rather, it is certainly not a problem on the electronics side in the pad, but the fault of the membrane button that "stuck" somehow, if you do not have two left hands, you can try to open it and fix it (if the problem is sitting there).
Link to the "repair" instructions: https://www.ifixit.com/Guide/DualShock+4+Buttons+Replacement/22447

The matter became a little clear when the pad discharged. Well, after spinning and purging raining again blinking. It finally discharged and then I connected it to charging and even played it. It worked normally even after pressing the square. I thought that after cleaning and unloading it repaired.

Unfortunately, I turned off the console and the same again. It started flashing and turned on the console. And as he turned it on, the square continued to act as the console enable button. It is strange because when I turned on the console with the second pad, because this one was unloaded, then the broken pad worked normally. So this error with the square button is only when I turn on the console with a broken pad. Unfortunately, I have to unplug the console because it keeps flashing and will turn it on immediately until it discharges.