UNO R3 + wifi clone code not uploading

Hardware
1

Hi!

I purchased a UNO R3 + wifi clone (ATmega 328p + ESP8266 8mb flash, CH340G, image attached) from a local electronics shop where the return is not allowed. I'm not able to upload code into the 328p. I'm getting the following error.

avrdude: Version 6.3-20190619
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch
         System wide configuration file is "C:\Users\ASUS\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"
         Using Port                    : COM3
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xb9
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xb9
avrdude done.  Thank you.
Failed uploading: uploading error: exit status 1

Things that I checked/tried.

  1. CH340 Driver is installed.
  2. DIP switches 3 and 4 only ON others OFF.
  3. Pressing reset (and ESP reboot) till it starts uploading.
  4. Loop Back test passed (hence USB to TTL serial is working)
  5. Bootloader is fine (checked by connecting LED to 13 and GND).
  6. Burned the bootloader from another UNO (To make sure the bootloader is not faultly)

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I haven't tried anything with the ESP as I don't need it now. The RX and TX are constantly blinking but not completely (kind of low-voltage LED) and L is not at all blinking (once in a while in the low-voltage kind of state when I'm pressing RESET).

Nothing helped. What could be the source of the issue? If anyone with a similar issue has a solution, please help me as well.

Thanks in advance.

2

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