user61146: 
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0,
  SPIWP:0xee
  clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
  mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:1044
  load:0x40078000,len:8896 load:0x40080400,len:5816 entry 0x400806ac
[E][camera.c:1049] camera_probe(): Detected camera not supported.
  [E][camera.c:1249] esp_camera_init(): Camera probe failed with error
  0x20004

I tried all the troubleshooting methods found in other forums

user37141: Welcome to StackExchange!
I guess you flashed esp32-cam firmware to off-branded ESP32-CAM with different pinout assignments.
To fix this, maybe you should try around with different settings.
Your code should have something similar to this:
// Select camera model
//#define CAMERA_MODEL_WROVER_KIT
#define CAMERA_MODEL_ESP_EYE
//#define CAMERA_MODEL_M5STACK_PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE
//#define CAMERA_MODEL_AI_THINKER

Now try to comment out the third line, and uncomment the last one. Probably it would help.

61146: <blockquote>
  <p>rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0,
  SPIWP:0xee
  clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
  mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:1044
  load:0x40078000,len:8896 load:0x40080400,len:5816 entry 0x400806ac</p>
  
  <p>[E][camera.c:1049] camera_probe(): Detected camera not supported.
  [E][camera.c:1249] esp_camera_init(): Camera probe failed with error
  0x20004</p>
</blockquote>

<p>I tried all the troubleshooting methods found in other forums</p>
 37141: <p>Welcome to StackExchange!</p>

<p>I guess you flashed esp32-cam firmware to off-branded ESP32-CAM with different pinout assignments.</p>

<p>To fix this, maybe you should try around with different settings.</p>

<p>Your code should have something similar to this:</p>

<pre><code>// Select camera model
//#define CAMERA_MODEL_WROVER_KIT
#define CAMERA_MODEL_ESP_EYE
//#define CAMERA_MODEL_M5STACK_PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE
//#define CAMERA_MODEL_AI_THINKER
</code></pre>

<p>Now try to comment out the third line, and uncomment the last one. Probably it would help.</p>
