Xiaomi Mi 6 Battery Connector Terminal Jumper Ways
If Xiaomi Mi 6 isn’t getting power ON, Replace the battery and try to electricity it ON. Plug in charging pin into jack and try and make it charge. Check batter terminal’s +v and -V factors with electronics meter.
Dis assemble the phone Xiaomi Mi 6 and check battery connectors if these are lose or now not fix. Then test the complete mother board for water and rust damages, Carbon or damaged parts.
If discover a few rust or carbon make it smooth with electronics purifier and practice hot air with warmness gun to make it dry.
Find out these components that are recognized in above diagram and make check for volts. If locate a few damaged components or tracks are lacking then practice jumpers as given in above diagrams.