A way to restore all cores: https://xiaomi.eu/community/index.php?posts/321807
Same here.. China devs should delete mpdecision if it doesn't work well on Mi4..
< Mi4 LTE by xiaomi.eu >
If you have android 4.4.4 I don't think partitions are merged.. Better check it..
Correct rom is MI3WMI4W (cancro)..
I cannot suggest any stable cause I use only latest developer..
< Mi4 LTE 3/16 gb >
Mi4 bootloader isn't blocked (so far)..
You must do these steps..
1. Merge partitions
2. Install TWRP
3. Flash xiaomi.eu rom..
I suggest you to find a guide on Google in your language..
< Mi4 LTE 3/16 gb >
Maybe you need a clean install.. Try to wipe cache and dalvik.. Or if not work wipe data too (backup before this step)..
I use last dev and it is a very good rom.. Also battery usage is fine without mpdecision..
< Mi4 LTE 3/16 gb >
This morning I removed mpdecision and add thermal tweak.. Battery improved and Mi4 is smoother..
Thank you very much @jc rey!..
Fortunately I have no reboots..
< Mi4 LTE 3/16 gb >