PI 4 not booting

[DarkWipe]

I received my first raspberry pi 4 yesterday. When I first inserted microSD card with NOOBS on it, everything worked and I got to the OS installation screen. When installing the Raspberry pi OS it gave me an error about some file missing. Not knowing what to do i pressed ESC on my keyboard, the screen went black and I had to shut it down by pulling the power out. Ever since I have not been able to boot the PI. I have tried 3 different 32gb microSD cards with different OS on them (NOOBS, NOOBS lite, Raspberry pi OS, Raspberry pi OS lite) I also tried the Raspberry pi imager. When I power the PI the green ACT led flashes green 4 times every 2 seconds or so.
The microSD slot looks fine and the micrSD card works (i can access it with my pc) . I read through this thread but with it didn't help viewtopic.php?t=58151 I spent all day searching for answers but nothing helped. I will highly appreciate any help

[DougieLawson]

Download this: https://downloads.raspberrypi.org/imager/imager_1.4.exe

Run that to completely overwrite your SDCard with the latest RaspiOS32 not the too old version of NOOBS that you've been shipped.

[drgeoff]

I received my first raspberry pi 4 yesterday. When I first inserted microSD card with NOOBS on it, everything worked and I got to the OS installation screen. When installing the Raspberry pi OS it gave me an error about some file missing. Not knowing what to do i pressed ESC on my keyboard, the screen went black and I had to shut it down by pulling the power out. Ever since I have not been able to boot the PI. I have tried 3 different 32gb microSD cards with different OS on them (NOOBS, NOOBS lite, Raspberry pi OS, Raspberry pi OS lite) I also tried the Raspberry pi imager. When I power the PI the green ACT led flashes green 4 times every 2 seconds or so.
The microSD slot looks fine and the micrSD card works (i can access it with my pc) . I read through this thread but with it didn't help viewtopic.php?t=58151 I spent all day searching for answers but nothing helped. I will highly appreciate any help

What happens to the green LED and what if anything do you see on your display if you power up the RPi4B with no micro-SD card inserted?

[DarkWipe]

I received my first raspberry pi 4 yesterday. When I first inserted microSD card with NOOBS on it, everything worked and I got to the OS installation screen. When installing the Raspberry pi OS it gave me an error about some file missing. Not knowing what to do i pressed ESC on my keyboard, the screen went black and I had to shut it down by pulling the power out. Ever since I have not been able to boot the PI. I have tried 3 different 32gb microSD cards with different OS on them (NOOBS, NOOBS lite, Raspberry pi OS, Raspberry pi OS lite) I also tried the Raspberry pi imager. When I power the PI the green ACT led flashes green 4 times every 2 seconds or so.
The microSD slot looks fine and the micrSD card works (i can access it with my pc) . I read through this thread but with it didn't help viewtopic.php?t=58151 I spent all day searching for answers but nothing helped. I will highly appreciate any help

What happens to the green LED and what if anything do you see on your display if you power up the RPi4B with no micro-SD card inserted?

It still blinks 4 times, no signal for display

[DarkWipe]

Download this: https://downloads.raspberrypi.org/imager/imager_1.4.exe

Run that to completely overwrite your SDCard with the latest RaspiOS32 not the too old version of NOOBS that you've been shipped.

I tried the imager already. Installed NOOBS from this website so it should be up to date

[DougieLawson]

Are you sure the SDCard reader you're using is compatible with SDXC cards?
Have you run the verify function of Etcher or the RPImager (which does a read-back checksum and compare after writing the SDCard)?
Are you sure the SDCard isn't worn out or fake?

Buy a brand new 16GB or 32GB branded SDCard and try writing RaspiOS to that.
Get a friend with a RPi to write a copy of RaspiOS to an SDCard for you?

[DarkWipe]

Are you sure the SDCard reader you're using is compatible with SDXC cards?
Have you run the verify function of Etcher or the RPImager (which does a read-back checksum and compare after writing the SDCard)?
Are you sure the SDCard isn't worn out or fake?

Buy a brand new 16GB or 32GB branded SDCard and try writing RaspiOS to that.
Get a friend with a RPi to write a copy of RaspiOS to an SDCard for you?

It is possible that the SDcard reader is not compatible with SDXC, and I will try a different reader, but the first time I booted the Pi, I got it to the installation screen, so that makes me think that reader is not the problem.

As for sd cards being worn out- I tried 3 cards and I think it is very unlikely that they are all worn out. I don't think that they are fake, since 2 of those cards are Kingston and I bought them in a legit store.
Yes, I tested the SDcards
Will try a new, smaller card as you said, just to be sure

I don't really know anybody who owns a RPI

[DougieLawson]

Have you eliminated the possibility that your SDCard is OK and your RPi has lost the magic blue smoke (or is in some other way destroyed).

[DarkWipe]

Have you eliminated the possibility that your SDCard is OK and your RPi has lost the magic blue smoke (or is in some other way destroyed).

I already contacted the RPI seller and asked about the option to return it because it might be defective