How To Fix Black Blank No Display Laptops Problem ?

deskdecodeWhen you push the power button of your laptop and you see the power light shows up, fan is running, harddrive is running but there is nothing comes up on the screen and the display shows blank. This is what we called a “no display” problem. In this problem probably your laptop should give the proper power supply to all the hardware parts but the motherboard wont able to boot because of some hardware failure or your motherboard boot’s up properly but doesn’t able to shows display just because of laptop’s screen got faulty. Either one can be possible with you; to troubleshoot this problem you’ll have to do the step by step inspection of your laptop’s Hardware to fix this problem. In this tutorial I’m gonna show you how you can easily troubleshoot your “no display” problem by following some simple steps what we shows you.
If your laptop’s doesn’t shows any sign of power supply that means you have a different problem with your laptop you can try to use the different power adaptor or take your laptop to the repair shop.

So let’s see

To fix the black blank screen problem there are 3 possible things you can do to fix your laptop. So, we are going to do step by step checkups to fix your laptop.

1. Display –

First we are starting with the display; sometimes the problem is generation just because of your faulty display screen. If your display got dead or broken your motherboard will never be able to show you something on screen or give you some error code. You’ll have to troubleshoot this problem by yourself.
To troubleshoot this problem you will need an external display to check does your laptop works properly or not. Here we have a another tutorial to show you how to do that >>>>> How to Attach a Broken Screen Laptop to an External Monitor ?
I f you ca see the boot display on the other external screen that means you have a problem with your display screen, you’ll have to replace it with the new one to fix your laptop or if your laptop’s still doesn’t show’s anything on the screen, that means you have no issue with your screen you can move on to your next solution below.

2. Bios –

Sometimes our system’s bios stopped working due to some reasons and the bios needs to get reset in order to run properly. To reset your laptop’s bios follow this steps given below-
Step 1 – Fully turn off your laptop and unplug the power adaptor.
Step 2 – remove the laptop’s battery.
Step 3 – press the laptop’s power button for 20 sec to drain out all the battery
Step 4 – turn on your laptop without the battery.
This will completely reset your bios and now you are able to run your laptop as just like before. If your laptop’s still shows you the blank screen then moves on to our next solution below to fix this problem.

3. Ram –

Commonly Ram must be the 90% of reason for “no display” problem. If your ram got dead or dirty your motherboard will never be able to show you deeply until you’ve clean it or replace it with a new one.
Troubleshoot the ram problem –
Step 1 – Unplug all the power source like battery or power adaptor.
Step 2 – Open your laptop’s back case where the ram is located and remove the ram form the ram slot . If you don’t know how to remove ram here’s a tutorial to show you how to do that >>>>How to Install or Upgrade your laptop RAM ?

Step 3 – Clean your laptop’s ram properly. “How to Clean a Ram Stick ?

Step 4 – Put the ram back to your laptop and put back the cover also.
Step 5 – Turn on your laptop.
If you have two ram installed in your computer, then remove one of them and try to turn on your computer. If your computer still won’t turn on then remove that ram from that slot and install it into another slot. If your computer still won’t able to Turn ON, then do those previous steps with your other ram stick (vice versa). it’s possible your ram got dead, you can try to borrow a compatible ram from your friend and installed it in on your laptop to make sure about your ram is dead or not.  If you find your ram dead, you can try to repair your ram by following our this tutorial “How to Repair a Dead Ram Stick (Memory Stick)?”.

4. Motherboard/GPU problem –

If the all above solution didn’t works for you that mean you have problem with your motherboard I suggest you to take your laptop to the repair shop. You can try to take advice from someone professional, to know does this problem is generating because of bad GPU chip. GPU chip can be the reason for no display problem and you can also reflow you GPU by yourself to repair your laptop and that will works 90% but take the professional advice first.

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  Source:- deskdecode