JP Please refrain from sharing direct OTA file links here, that’s not allowed as per rules afaik. I can see you have already redirected the OP to the source website which should be quite enough of help in this regard. Please edit the relevant comment asap to remove the link.
@AradhyaPandey For downgrading to an earlier version of the NOS FW, you have to to unlock the bootloader, clean-flash the 3.0 firmware manually using the Nothing Flasher script for (2a), and then relock the bootloader. Relevant guides are linked on the Nothing Archive repository/webpage. The guides are pretty self explanatory and visual tutorials have been linked as well. Goodluck!
