JDM-050 detects but doesn't charging

[ZhenyaKa]

When connected to PC consumes 43mA and detected well

At battery no voltage decreasing at all and not increasing when plugged in USB (tried 3.6 and 4.1V charged battery).

I replaced 7736ftg chip, but result the same.

At large resistor (near 7736ftg) that value near zero ohm I have 3.43V. Is it current sensor for charging battery?

3.2V at sticks is okay, 5V at small capacitor near 7736ftg okay to.

At battery contacts I have zero.

Please, help, where to dig?