Hi, I received by Raspberry Pi 4 a few days ago but I have had no luck with getting it to boot. I am using the official power supply and have many older Pi’s working perfectly (So I have some idea what I am doing).
With nothing plugged in I get the red power LED on, and the green LED flashing in a pattern (3 short flashes, a long flash then repeats). With an SD card plugged in (Either a working SD card form my Pi3 or a newly flashed one) the green LED illuminates briefly, then nothing. No more green LED. The red is on at all times.
With an ethernet cable plugged in I get not activity on those LEDs either, and the HDMI out put (both of them) has no signal on my Samsung TV.
I even tried the recovery file they have on the website to restore the EEPROM but no luck.
Does anyone have any ideas what the issues could be? Have I just been unlucky and received a dud?