2 melf and diode and poor and soldering results

Circuit Board Repair: Common Reasons for PCB Failure | Imagineering, Inc.

Imagineering, Inc. | https://www.pcbnet.com/blog/circuit-board-repair/

. Poorly situated components, bad soldering jobs, and insufficient PCB board thickness can all lead to poor connectivity and shoddy performance

Imagineering, Inc.