PS4 will boot in safe mode but won't restart after finishing

Hello, this my first topic here. I’m having a problem with a ps4. It had a broken disc drive and a wlod managed to fix both but when I tried to make it play ready it boots up in safe mode and begins the process to finish. When prompted to restart it turns off but stays off. Won’t restart by it self. When trying to turn it on again need to press it twice second time it starts but gets a blinking blue light. When I press the controller thats in the USB the controller light turns white and the blue light turns blinking white screen stays black. I have changed the hard disc. Tried to search online for possible ways to fix it but can’t find any, hope some one here can help me find a solution.