Asus GL553VD Modfix Request

Hi everyone, my bios have sirius issues and I need help to fix these issues.
1-) Adding a custom boot entry-> Can’t access to bios unless I reflash nvram
2-) Sleep in battery → Shutdown (in AC it’s OK)
3-) Serial in Bios ->AB0123456789012345678 just not exist (since I bought that device)
4-) PC boots few seconds after pressing power button.
5-) Bios time is not working need to reset my timer on every reboot.
I tried cleaning ME region but my issue still exist.
I need to fix my bios I hope someone will help me.
Also unlocking would be nice.…sp=sharing
Latest Bios From Asus…