No battery information (BATTERY_SWI)

I am facing with this problem:

Phone came with this problem: Not charge & battery drain.

Replaced after confirm: Tristar.

Result: Charging normally, no battery drain.

Problem: No battery information / Random reboots.

After replace TIGRIS: No result.

In good one board 7/7+ BATT_SWI line is 1.6v, same as my fault board.

Measuring diode mode SWI_AP_BI_TIGRIS = normal

Measuring diode mode TIGRIS_TO_BATTERY_SWI = normal