I2S not working?

[I2S not working?]

Hi, I want to use I2S with Max98357 (with 3W 4ohm speaker)

this is pin i use connect to Max98357

LRC ------------ I2S0_FS (35)
BCLK --------- I2S0_SCLK (12)
DIN ------------ I2S0_SDO0 (40)
GAIN ---------- Float
SD ------------- Float
GND ---------- GND
VIN ------------ VCC5 (2)

and I also config on Tinkerconfig to turn on I2S but nothing happend

Please help me