Xiaomi Redmi 4X Display Light Solution
Redmi Dead Solution
Redmi Battery Track Ways
Redmi Battery Connector Jumper
Redmi Terminal Jumper Ways.
If Redmi isn’t getting power ON, Replace the battery and attempt to strength it ON. Plug in charging pin into jack and try to make it charge. Check batter terminal’s +v and -V factors with electronics meter.
Dis collect the smartphone Redmi and check battery connectors if those are lose or no longer fix. Then test the entire mother board for water and rust damages, Carbon or damaged elements.
If discover some rust or carbon make it clean with electronics purifier and practice hot air with warmth gun to make it dry.
Find out those elements that are recognized in above diagram and make take a look at for volts. If locate a few damaged components or tracks are missing then observe jumpers as given in above diagrams.