Geeetech

ok so i got my printer in mail, and i assemled it, but when i power it it wont home axis. i press to home axis but motors just start making sounds like vibrations. i tried increasing voltage but that makes the noise only louder. please help me to solve this problem

It sounds like your stepper motor wires aren't configured properly and your stepper isn't sequencing.
If motors run in reverse, resequence all wires. If it jolts, like you say, you probably need to switch two wires. I can't help you with which two to swap because there are too many possibilities with your hardware.

Sorry, duplicate post.