My Acer Nitro AN515-55 say "no bootable device" and turning off randomly

So my laptop has been having booting issues lately, ranging from only booting when it's plugged in, the "no bootable device" screen showing up, to turning off randomly while I was using it. These issues would either fix themselves after a while or I would get it repaired. The past couple of days I would turn it on, it would work for about 5 minutes, and then turn off. I would then hold the power button to shut it down, push it again to restart it, and repeat a couple times until it finally loaded in.

But this morning I turned it on, checked my social media for about 5 minutes, and then.... it just shut off. Completely. Cold as a rock. No charging light, no keyboard lights, no sign of life. (These were all working fine before the shutdown) Efforts to resuscitate have been in vain. (I'm not a technical person though so that's not saying much) It's been having issues for awhile now so I'm worried this is the end of the line and I'll have to buy a new computer. It's only 2 years old though. Is it common for it to completely shut down like this? Is there anything I can do?

This is also my first time posting here, so let me know if you need any additional information.

[Edited the thread to add model name to the title]

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StevenGen

https://community.acer.com/en/discussion/678300/my-acer-nitro-an515-55-has-committed-seppuku

There must be something wrong with either your laptops primary power stage or its Super IO chip or the bios chip that are frozen and need resetting. Try to do a Hard Reset by taking the back cover off, disconnect the main and bios batteries and take the ram out and clean the ram slots and pins carefully, leave all components disconnected for about 15min and reconnect all except the ram (if you have 2x modules) only put 1x module back in before you boot the laptop, then connect the rest of the components and reboot, this should completely reset your laptop and should make your AN515-55 work 100% without any 5min crashes.

If the above does not fix your laptops crashing problems, then your laptop has problems in its primary power circuitries like one of its mosats or capacitors are shorting out, as these components are not being filtered and crash the power supply to your laptop, for this you need to take your laptop to an experienced technician that can analyze these problems and fox/replace the faulty components.

Captain_Fartbeard

Thanks for the suggestion! I took a go at it. The good news is, when I plug it in, the charging/charged light comes back on. The bad news is that there's still no power, although when I press the power button the power light flashes blue for a few seconds before going out.

It's likely that it's the second issue you mentioned, but it's possible I did something wrong since this is my first time opening a laptop. So I'm attaching a couple photos to make sure I did everything right.

This is how it looked when I opened it originally

Here's the separated components. Are those the right ones?

https://community.acer.com/en/discussion/comment/1175706#Comment_1175706

StevenGen

https://community.acer.com/en/discussion/comment/1175754#Comment_1175754

Yes, that is it, main battery, bios battery and the ram, check the ram if it's not faulty as that can be a big factor of a laptop not booting, have you got another ram module? If you don't then get Memtest86 and put it onto a USB and boot the laptop to get this software to do a memory test and check your ram if its faulty, just run about 7 passes and if there are any errors then your ram is faulty, if there isn't then your ram is good, it's a quick test but MemTest86 can be run for up to 8hrurs or longer. So, check all that and if the laptop still doesn't boot then it's an internal circuitry issue but try to narrow things down to the power key and everything that you can do before you take your laptop to a technician.

Captain_Fartbeard

https://community.acer.com/en/discussion/comment/1175756#Comment_1175756

Nice! I don't have another RAM module so I'll try downloading the software. I'll have to buy a USB so I'll probably do that tomorrow. The software will work even if the laptop doesn't boot?

StevenGen

https://community.acer.com/en/discussion/comment/1175758#Comment_1175758

First try the Troubleshooting options within windows.

With your PC turned off, reboot and repeatedly press the F9 keyboard key until the recovery screen appears, illustrated below. Alternatively, or if F9 doesn’t work, you should see the recovery menu appear automatically after a few failed startup attempts of pressing F9. Then and when you are in the Choose an option >choose Troubleshoot

And then choose Startup Repair or if that doesn't work then try System Restore

Last run Memetest 86+ but you first need a laptop that can get on the web and has a USB port, as you need to download the Memtest 86+ (Auto Installer for USB Key) v5.01. After you have done that, restart your computer. Make sure to leave the USB plugged into your computer. MemTest86 will automatically run once your computer is restarted if the USB option is the first boot priority. You can set this by pressing F8 on most computers. Let the program run. You should let MemTest86+ run for 7 to 8 passes in order to ensure accuracy. After it has done so in slot #1, switch to slot #2 and repeat. Do this until you have gone through every RAM slot.

Captain_Fartbeard

https://community.acer.com/en/discussion/comment/1175779#Comment_1175779

Thanks for the help! So I did wind up taking it to a tech support store. They said they tested the RAM, WIFI Card, power cycling, and taking out the NVMe, but it still wasn't booting. They recommend replacing the motherboard but at this point I might just get a new laptop since it's been having issues for a while now.

StevenGen

https://community.acer.com/en/discussion/comment/1176150#Comment_1176150

The tech place that you took your laptop to is probably not the right place for your laptop to be fixed, as the problems that you are having can be fixed, as it doesn't sound like its your cpu or gpu that are burned out which are the only reason why a user should replace the mobo with a new one. Anyway, its up to you but there are allot of great techs out there that can fix your laptop like NorthbridgeFix, Sorin Electronics and Tech Cemetary which all have YouTube channels, and will fix your laptop 100%, its up to you? Good luck anyway and hope this has helped you out.

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