I'm going to flash China Stable 9.5.1 rom on my Mi Max Pro 64 GB 3 GB having unlocked bootloader. My phone is rooted with TWRP 3.2.1 and SU 2.82 SR5. Currently I've MIUI 184.108.40.206 NBDMIEK on this phone. I've flashed no-verity-opt-encrypt v6.0 via TWRP. Any guidance or suggestion would be appreciated! I'm particularly concerned about erasing the internal storage. Is total erasure of internal storage unavoidable in the process of flashing the new rom?