Restart loop on iPhone 11

Every time I have an update with iOS 14, my phone goes into a restart loop. I have access to my apps for a few min then it restart itself. Usually I take my SIM out and do a force restart and it works. This time round nothing is working. I have even done a DFU restore and I am still in reboot loop. Please help. I’m sick of going through this as I have been trying to fix this for the past two days now.