TTGO t-beam crashing

Using Arduino Programming Questions
1

Hello everyone!

I have a TTGO T-beam board with a small program for an OLED screen I attatched. The program worked fine when I was working on it a few Weeks ago. Today, I wanted to work on it again and uploaded the unchanged file. The program uploaded succesfully, but the board crashed and spammed the Serial monitor with crash dumps. For testing purposes, I tried a simple program, that just prints "Hello World" out to the Serial monitior but it still crashed over and over. I can't even get a empty sketch to run. I tried it with another T-Beam I have but it doesn't work either. So I think something with my Configuration isn't right...

This is the crash dump:

Core  0 register dump:
PC      : 0x4008bde7  PS      : 0x00060031  A0      : 0x800828ca  A1      : 0x3ffbed2c  
A2      : 0xbad00bad  A3      : 0x00000400  A4      : 0x000249f0  A5      : 0x08000000  
A6      : 0x00000008  A7      : 0x00060223  A8      : 0xbad00bad  A9      : 0x50d83aa1  
A10     : 0x3ff480ac  A11     : 0x3ff48000  A12     : 0x00000014  A13     : 0x00000000  
A14     : 0x3ffbe490  A15     : 0x00000000  SAR     : 0x0000000c  EXCCAUSE: 0x0000001d  
EXCVADDR: 0xbad00c11  LBEG    : 0x40085cec  LEND    : 0x40085cf7  LCOUNT  : 0xffffffff  


Backtrace: 0x4008bde4:0x3ffbed2c |<-CORRUPTED




ELF file SHA256: 1d5187f628226a0b

Rebooting...

What can I do?

2

if "hello world" won't run first try obvious tests, e.g.
if you run the Device Manager does COM port appear/disappear as plug/unplug the microcontroller?
if not do you get any message, e.g. "USB device not recognized"
disconnect everything (sensors/relays etc) from the board
try a different USB port
try a different USB cable (some are charge only)

try EN / BOOT/ RST button combinations