Xiaomi has released a new, official version of MIUI (10.3.5.0) for the Pocophone F1. This is normally great news, and would be in this case were it not for a sub-group of users who report problems such as screen freezing and ghost touch on their updated devices. The OEM has requested that affected owners send them their units for testing in relation to the issue.
https://www.notebookcheck.net/The-latest-build-of-MIUI-may-cause-screen-issues-for-some-Pocophone-F1-users.427348.0.html
After the update, I don't have the above issue but then notice my GPS network is always not available until today. I just bought the phone less than a month :(