my laptop won't boot

[dstnys3sure]

Hello there, my acer e5-571g laptop won't boot after i replace the hardisk. only blue led light apear few seconds every press the power button. Can somebody help me to fix it. Thnks

 

[hang-the-9]

We can't but you can, since you opened it up to replace the disk, open it again and check over all the connections, maybe have a second person check it with you in case you missed something.