

Dude
Hi everyone, I hope someone can help me. I bought a used phone, a PCOO F6, but when I checked the name, it appears as Redmi Turbo 3. Because of this, it can't be updated, since it has a custom bootloader. I've looked for ways to unlock it, but it always says it doesn't work and to wait a month. Also, which operating system can I install, the global one or the Chinese one? The strange thing is that when I restart it, the lock icon appears open, but when I check, it says it's not. Any advice?
I'm from Mexico