bootloader locked

How do I lock the bootloader on the device

I was using my phone normally yesterday (Saturday) 12/06, I left it charging and when I looked at it again, it was restarting non-stop. It's a Redmi Note 8, I held the power button, but it wouldn't turn on, it just went back to the bootloader screen, I didn't try to format it as I'm trying to...

Hello and good day I have a Xiaomi Redmi Note 4X (Snapdragon) that has a problem. Almost 4 months ago, I installed the "cam scanner" program, immediately after installing this program, my phone reset and stopped for a few seconds (3-4 seconds) on the "MI" logo and reset again, and these restarts...

Hi everyone ! Recently i tried to install the eu rom to my mi 9se but I could not do it, so to return to my stock rom (my fault) I flashed the rom with the option to block bootloader. I tried to repair it with miassistant and it did not work I also tried with miflash and it did'nt work either I...

I was going to install the Android 10 in my Redmi k20 pro, but when I was flashing it with MiFlash I selected "clean all and lock". Now I have "The system has been destroyed error". So I was going to unlock the device with MiUnlock ( after breaking py phone ) but it tells me "your mi id is not...