55pus7334/12 reboot loop after software update

My 55pus7334/12 received an update 2 days ago and ever since its been unusable. TV was working fine before the update.
When power is applied to the TV, It shows the Philips icon then Android TV, then briefly shows TV picture/sound for a few seconds then goes blank with sound for a few more seconds and then reboots and starts the whole process again.
Please help