Hello, That's not the entire schematic. I have 2 transistors which control the DTR and RTS pins and these two have been working fine. I doubt that this have something to do with the flash of the ESP32U. As I don't have the hardware ready for the flash reset. I had to upload the empty code 10 times. ...

I managed to solve my problem. Here's the solution for anyone who's facing the same thing:
I flashed empty code for 10 or more times.
Then ESP started working again.
However, each time after successfully uploading code, you have to restart the ESP for it to work.
Pretty weird but it works

Hello, I don't have a RESET button on the board. Should I just connect pin 9 shortly to GND? Although, when the board is plugged in the computer, GPIO22 is floating. However, when I remove the USB connection (power is still there), pin GPIO22 is producing 1,2V. That's really weird. I'm using ESP32-W...

Hello,
Thanks for replying.
This log is from the one that doesn't work
I uploaded the code and the ESP does not respond. (For example, in this case, GPIO22 is not working)

Hello, I have my custom-made ESP32 board. After soldering, I can only talk to some of them. To these boards, this is the uploading log: Sketch uses 204602 bytes (15%) of program storage space. Maximum is 1310720 bytes. Global variables use 13416 bytes (4%) of dynamic memory, leaving 314264 bytes for...