I'm really appreciate your help!
All those links provided above I have already read through! The key issue was I can't take the step of Recovery Mode, as well as I was unable to Boot USB installer (option key).
In fact, some mentioned about Keyboard Faulty might be an issue. Still,one of the user did mention install the came along OS version. Unfortunately, OS before El Capitan unable to download from the internet.
So, I made up my mind today to create an El Capitan USB installer, still, pull out the Shift Key (cap) of both sides and do a cleaning service!
Surprised! El Capitan was able to boot up by pressing Option Key. Once OS successfully installed, I checked the keys on the keyboard by using keyboard viewer. Boom, Shift Key having problem! (No wonder keep launching Mojave in Safe Mode)
After cleaned up the keys and proceeding for Mojave installation. Everything is perfectly fine! 😀🤩