Here are some troubleshooting steps that I've suggested to others who had the same problem.
- Start by doing a hard reset, remove the battery and unplug the AC adapter then press and hold the power button for 20 seconds then see if it would load normally.
- Next is to test your AC adapter but based from what you mentioned your AC adapter works fine with a different laptop right? Have you tried using the AC adapter from your friends laptop and did it work or not?
- Try booting up your laptop without the battery and see if it would boot up without it.
- If it doesn't boot up it means you'll need to replace the AC adapter.