It has Xiaomi.eu Android 6 MIUI 10 ROM and TWRP 3.0.2 installed.
I downloaded and tried to flash Havoc OS for Android 9 and 10 but neither was able to be installed. So I loaded up the Xiaomi.eu ROM again and it went on perfectly with Magisk too.
Is there something I need to do so that I can install a newer ROM. I remember upgrading another phone and I had to install some Firmware before I could install Pie. Or do I just need to upgrade TWRP?
I had a look through this forum but couldn't see anything like that mentioned.
Thanks if you can help