8-Channel 12-Bit ADC for Raspberry Pi, all ADCs reading 0

Hi everyone,
I am new on this forum and I am having the same type of problem. I am using alternatively “Grove Base Hat” and “8-channel 12-bits ADC” with a reTerminal.

The “8-channel-hat” return values that seems ok, using a 0-5V pressure sensor and manometer to confirm the pressure evolution. The “Grove base hat” return only 0. Using the command ’ i2cdetect -y 1’ in a shell help me a lot to understand what is the adress of the i2c.
0x04 for the “8-channel-hat” and 0x08 for the “Grove base hat”.
Changing the adresse from 0x04 to 0x08 doesn’t change anything for me. For information, digital input and output work well on the “Grove base hat”.

I am looking for a solution and I will let you know if I find it.