Boot loop + device not found by adb

I tried some steps i found online but none seem to work.

i tried pressing power button + volume up button which got me to RCK. Only options there were, Continue (which cold booted but issue still remained), reboot - boot loader (which got me into rck after a reboot), reboot, power off.

I tried power button and volume down button. It showed an Android bot with red triangle.

Then i tried using adb to factory reset, but adb could not find device when connected. though it showed in the PC.

Any help on how to get adb to find the device, or to factory reset?