Acer A515-54 on power up: black screen, fan goes temporarily, keyboard light stays on

Prototypical
Prototypical Member Posts: 3 New User

Hey there, I recently tried replacing the fan since it was making unusually loud sounds and vibrating suggesting the bearings were worn out. After replacing the fan the laptop won't start properly which has me wondering if I've messed up somehow. On powering up the screen stays black, the keyboard light goes on and stays on (I typically have it set to off) and the fan goes temporarily then turns off. I tried using the previous fan and it does the same thing. I tried searching and came across suggestions of resetting power with and without the battery, pressing the pin underneath with a paperclip, and letting the battery fully charge so the led goes from solid orange to solid blue. None of these seem to do the trick, any advice?

Answers

  • StevenGen
    StevenGen ACE Posts: 12,747 Trailblazer
    edited October 2022

    When doing any internal changing of fans and especially disconnecting a screen or replacing a screen or cleaning and/or replacing ram, paste/pads and especially changing fans its essential that you disconnect the main battery. As and if not, there is a very big chance that you will short/burn some of the power circuitries of the mobo and your laptop will get a black screen or not boot, as and if that happens, you will need to take your laptop to an experienced technician so that these faults can be pinpointed to where the problems are, hope this didn't happen to you.

    If you have disconnected the battery then do another hard reset by taking the main battery out, bios battery out and the ram out, leave them disconnected for 15min and then reconnect all, reboot laptop but be patient and wait as the reboot will take some time until the laptop resets, as that should fix the black screen and the boot problem. Try that and let us know how you go.

  • Prototypical
    Prototypical Member Posts: 3 New User

    Ugh I did leave the battery in when changing the fan, only realized it way too late. Tried taking main battery, bios battery and ram out then reconnecting 15 minutes later but it's still the same thing. Guess I'll have to take it in, hopefully it's still salvageable, lesson learned at least.

  • @Prototypical


    I am really sorry for the inconvenience..  Let us do the basic steps first..


    Doing the power drain and bios defaults will really help. Kindly follow the steps given below:


    Turn off the laptop. Disconnect or unplug the charger cable, devices or any other cables connected to your laptop. Close your laptop. Turn it upside down. On the bottom of the laptop, you can find a pin hole. It is a tiny hole. You can a find a battery symbol indicator next to the hole. It is like a + and – sign symbol as though somebody is trying to shift the battery out. Insert the pin on to the hole for 30 seconds. Remove the pin. Flip the laptop. Connect the charger cable, turn on the computer. Only on laptops where the battery is inbuilt you can find the battery reset hole on the back of laptop.


    If you don’t find a pin hole on the back of laptop then you might be using removable battery. There is no need to unscrew anything to remove the battery. Turn off the laptop. Disconnect or unplug the charger cable, devices and any other cables connected to your laptop. Close your laptop. Turn it upside down. On the bottom of the laptop, please look at the top or bottom depending on the way you look at it. You can find a long door. It is a battery removable door. Just below that you can find a latch. If you move the latch you can remove the battery door. Once the battery is removed, flip the laptop. Open the top cover, press and hold the power button for 1 minute. Connect the battery back on the back of computer. Connect the charger cable back and then turn on the computer. 

     

    If you don’t see a reset pin hole on the back of laptop or if you are not able to remove the battery (if it is inbuilt) then please unplug all the cables and devices out of laptop.  Hold the power button for 1 minute. After releasing the button you should wait a while before plugging in power. Just because the button has been pressed doesn’t bleed off all the residual electricity on the motherboard. Wait 15-30 minutes before plugging in power. Then once power is connected wait for a full battery indication before turning the system on. That allows the battery to fully reset it’s internal statistics.


    Connect all the cables back and restart the computer.  



    While turning on the computer, tap f2. It will go to bios. Press f9 once. It will show load bios defaults with a yes or no popup. Press enter. Popup screen will disappear. Press f10 once. It will show save changes popup with yes or no. Press enter. Computer will restart and it will load into windows.  

     

    It might also be the issue with battery, charger or power outlet.  Try to use the charger in a different room on a different power outlet. Try to bypass the surge protector and connect it directly to power outlet.  Try to use an alternative charger if possible.  Try to turn on the computer without the charger and check it ( as long as the battery is not drained out )  


    Try windows x 

    go to device manager 

    expand Battery

    right click on all the items below battery – uninstall 

    Restart the computer 

     

    It should work fine.. 


    If it is still not working, then it might be a loose connection of cables or components so please open the laptop, disconnect the memory, fan, battery and all the internal components and then connect it back . Reseating the internal components and connecting it back tightly will fix the issue.

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  • Prototypical
    Prototypical Member Posts: 3 New User

    Figured I'd give an update for anyone with similar problems. Took it in to a repair shop and they said whatever damage I did was irreversible and fixing it requires a new motherboard coming out to a total of around 600$, cheaper to get a new computer at that point. So yeah it's bricked and these can be symptoms of it.