Powercontroller issues

Hi there,

Running Pi4 and amp2.

Having some issues with the power controller. Had to drop hifiberryOS version down to v20210531 in order to flash with firmware. Had to enable i2c also. Flashing was eventually successful and controller responds to: i2cget -y -f 1 0x77 1


Power controller turns the pi off when pressed, but does not turn back on. Pi leds turn on for less than a second. Also, volume does not respond when rotary control turned. Any help appreciated.

Many thanks.

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