Official Leagoo Kiicaa Power T591 T592 Firmware- Custom Rom- Root Twrp ((free)) — Verified & Genuine

MT6739 suffers from low RAM. Enable 2GB swap on /data :

Ubuntu 20.04, 16GB RAM, 200GB disk.

Magisk is the modern standard. It hides root from banking apps (via Magisk Hide) and does not modify system partitions. MT6739 suffers from low RAM

Note: Direct links omitted for security. Search "Leagoo KIICAA Power T591 stock firmware Needrom". MT6739 suffers from low RAM