Hi Wen Z., I noticed your profile and would like to offer you my project. We can discuss any details over chat.
the project is PCB design :
You have to do the following:
1. You analyze the Portal Power circuit and find the problem.
2. To assure the function of the circuit,
3. You will design the tested circuit in Altium and prepare manufacturing files' design the tested circuit in Altium
4. Create and assemble the Prototype.
5. Test and debug the circuit sending functional proto Test and debug the circuit sending a functional prototype