predator helios 300 ph315-52 black screen

byambatogtokh

hello I am connecting from Mongolia. My laptop is a predator helios 300 ph315-52. Last week I cleaned the cpu and gpu and tried to turn it back on, the keyboard light turned on and the screen black.

StevenGen

byambatogtokh said:

hello I am connecting from Mongolia. My laptop is a predator helios 300 ph315-52. Last week I cleaned the cpu and gpu and tried to turn it back on, the keyboard light turned on and the screen black.

Make sure that your screen plug (see below) has not been disconnected from the motherboard

StevenGen

byambatogtokh said:

hello I am connecting from Mongolia. My laptop is a predator helios 300 ph315-52. Last week I cleaned the cpu and gpu and tried to turn it back on, the keyboard light turned on and the screen black.

Make sure that your screen plug (see below) has not been disconnected from the motherboard

byambatogtokh

byambatogtokh said:

hello I am connecting from Mongolia. My laptop is a predator helios 300 ph315-52. Last week I cleaned the cpu and gpu and tried to turn it back on, the keyboard light turned on and the screen black.

connected everything

StevenGen

byambatogtokh said:

byambatogtokh said:

hello I am connecting from Mongolia. My laptop is a predator helios 300 ph315-52. Last week I cleaned the cpu and gpu and tried to turn it back on, the keyboard light turned on and the screen black.

connected everything

If your screen worked before you cleaned the cpu and gpu then the screen should work, check that you haven't damaged the plug and all its delicate wires as the screen wires are very delicate and can be damaged very easily! This happened to me and I thought that the screen plug was 100% connected but it wasn't and I had to repair the wires and put extra tape for the wires to make proper connections with the plug. There should be no other reason(s) why your screen should not work if it worked before you opened the laptop unless, the cable from the LED screen or the LED screen was faulty before you opened the laptop. 

byambatogtokh

hello I am connecting from Mongolia. My laptop is a predator helios 300 ph315-52. Last week I cleaned the cpu and gpu and tried to turn it back on, the keyboard light turned on and the screen black. Cable all connected.  

video here https://www.youtube.com/watch?v=0xetJAWgjYI

Philips_Smith

Sounds like the motherboard can't reach BIOS. The BIOS may have been corrupted, OR the motherboard is damaged in some way.

Technically it could be the CPU or the RAM too. The computer won't boot if these are faulty in any way. Try taking out a RAM stick, repeat in both slots.

xapim

@byambatogtokh if youre still under warranty contact acer support and send it back to get it diagnosed it could be a million things since you said yourself it was working but you have opened it to clean and after didnt worked anymore even if under warranty they may refuse and void it good luck

Erick-Acer_Retired

Hi @byambatogtokh
ch​eck if there is a pin 📌hole at the bottom of the unit. Put a small pin inside and press and hold the pin for 30sec.  If there is no pin hole then press the power button for 12sec. Remember to remove your charger when you do that.