thry gave me a slot for bootloader unlock but...
i once unlocked this same phone recently (around january or so) but i bricked my phone on my first unlock due to an incompatible custom rom. i searched up for hyperos 3 fastboot rom since i was able to access my fastboot, i tried finding one to no avail since it was still a relatively new and major update. i sent this phone to their service center, they fixed it but when i tried unlocking it again for the 2nd time using the mi unlock github tool, im getting this "this device is not activated, please activate it and try unlocking it again" error pop up. i looked up this error on the internet, i read somewhere that i need to i look into the back to the sticker of my phone or the box of my phone to see if the IMEI from sim 1 and 2 matches to the current one and it didn't. it turns out my motherboard was swapped. in my speculations, the repair dudes messed up too, maybe they flashed hyperos 1 or 2 then they hit the ARB (Anti Roll Back feature) to prevent from flashing outdated OS so they resort to motherboard swap.
im loosing hope rn, idk what to do. i only had one chance and i fumbled so fucking hard. i hate my life