1. Display:
Sometimes a few lines/marks appear on the display, which come and go. Not permanent. Likely a connection issue, not a fault of the display itself.
2. Ports:
All USB ports and the charging port are functional.
Headphone jack is not working (it was fine before) — could be due to dust.
SD card port and Ethernet port have not been checked, likely fine or might have issues due to dust.
3. Speaker and Microphone:
Speaker and mic are not working. I opened the laptop and the speakers look physically fine (no damage). Could be a hardware or software issue.
4. Battery:
Battery backup is low — provides about 1 hour.
Note:
The above issues did not cause any major problems in my daily work, so it was not taken to a technician. I believe, except for the battery, the other issues can be fixed at a low cost.
The laptop is running well overall. Interested buyers can check it out.