So if you can not fix it, you can send it to Xiami and they play you again the software on and if it is in warranty, they even do it for free (and your device must still be in warranty, because there is 1 year warranty and that device is only released this year.How do I know that?
Someone from the Android HIlfe forum has also managed to destroy his Poco F3 (by software) and he also had the Xiaomi.eu Rom on it and the bootloader unlocked (can not be otherwise) and Xiaomi has flashed him the software for free on it again.I think but somehow that other manufacturers such as Samsung would not reload me for free the software if I would have destroyed it in the warranty period.