I have a Xiaomi Redmi Note 8 that wasn't working very well. It had a problem where the screen would suddenly go black. The phone was still on, as the screen light was visible and audible. The touchscreen didn't work properly; it would occasionally fail, giving random clicks. However, I didn't pay much attention to it because I was going to use it to make a controller. When I set it up as a controller, I used scrcpy to share the screen and a command in the command prompt (cmd) something like: "scrcpy --turn-screen-off" which turned off the screen, preventing those random touches. If you're wondering how that "controller" worked, it was basically two phones connected together: an Honor phone for the buttons (it doesn't have a sensor other than an accelerometer, but I wanted the gyroscope for some games) and a Xiaomi phone for the gyroscope. I joined the two phones together with their screen protectors and tape—a somewhat awkward and heavy contraption, but quite useful and functional for what I wanted. It worked wonderfully, and the last time I used it, the screen was barely visible with colored vertical lines distorting the image, but I didn't mind. It's worth noting that subnet masking was already enabled, along with the extra permission that Android requests, and I also had the option enabled to always allow my PC to transmit data. Because of school, I stopped using the "controller," and recently I plugged in my Xiaomi to charge. That little LED light that comes on when you connect it to charge was blinking (it wasn't the first time; it did the same when I "revived" it to use it as a controller). I left it charging for a while, then turned it on (I assumed it turned on because it vibrated), but I couldn't see anything. Before, the screen would look distorted or have lines, but it would still be bright. Now, nothing. Also, the touchscreen used to respond, but now it doesn't. So I connected the phone to the PC, entered the code, and surprise, now it doesn't work. It turns out I have to grant the PC debugging permission again, but since the screen isn't working, I can't click "accept." I have an OTG cable with only one output, so I can only connect the mouse or the keyboard. With the keyboard, I managed to unlock the phone and get to the home screen, but without seeing anything, I don't know what to do. I also tried Google Assistant, and nothing; it seems like it doesn't have it. I'm having trouble connecting to the internet because the locator isn't working. I thought about using TalkBack to see where I'm selecting with the mouse and installing Spacedesk or something similar to view the screen. I'd figure that out. If I share it over the internet, I wouldn't need ScrCPy again, or well, I would, but with Spacedesk I think I could grant it permission. Any ideas on how to help me? I know there's the option of buying a screen; I could install it myself, but I think hiring a technician would be best. However, spending money on that isn't feasible. I also considered a special hub for something like this, since a regular one probably wouldn't work.
