When the chip is powered on, the SOC displays 1%/0%

The Fuel gauge is initialized based on the initial voltage measurement which is translated through a variety of internal calculations to determine the initial RepSOC.  If the VCell Register (battery voltage) is ~3.0V, there will be a very low RepSOC at start up.  A h igher voltage should result in a higher starting RepSOC.

HI,

The voltage we provide is 3.8V, and the normal SOC should be around 30%, not 1%.

Can you provide a brief datalog from the EVKIT GUI and we may can see what is happening.  The VFOCV/VFSOC may be getting initialized low at start up.    You also can use the fuel gauge reset command to get a fresh RepSOC reading by sending Config2.POR_CMD (Bit D0).  This bit will self clear after the fuel gauge is reset.  This shouldn't be used normally, but is ok for testing and getting things up and running.