How to reset the computer (simulates removing and reinstalling the battery).


No parts required.

  1. At the bottom side of the laptop, you will find a small pinhole.
    • At the bottom side of the laptop, you will find a small pinhole.

    • Insert a paperclip into the hole and press for four seconds to reset the computer.

    Is this for recalibrating laptop battery? Do I need to switch off the laptop?

    danelhakim - Reply


To reassemble your device, follow these instructions in reverse order.

12 other people completed this guide.


Member since: 12/09/2013

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Yep-it worked exactly as suggested. Sharp end of a small safety pin and bobs your uncle.

Thanks again. Was worried that it could be something worse.


dabblers2 - Reply

Its not working on my laptop Acer aspire S3.. I press it in 4 second but its not gonna work.

What can I do to fix it?

dongyul54 - Reply

Ok, it works perfectly..., thank you to your suggest.

My Acer Aspire ES1-512-C08J, did not accept anythink from keyboard to input password at start of windows 10, but in Bios setup did it works.

No solutions to change keyboard, or reset bios to default configuration, but only when i pushed in the pinhole reset switch battery on back laptop, while laptop was on, and it immediatly drops down switch off, and when i restart laptop from normal push button power on, all works another time ok.....

Sorry for my bad english...

Vito Perrino - Reply

Should I perform these steps with the laptop turned on or turned off?

Ridhwaan Hassim - Reply

Well the same thing happened me, i pushed around 15 seconds, without connected to energy, and iwas go to sleep, i woke up and i reconnect the energy and press power button and works ok, i turned off with normal windows 10 process, and now it´s again the same problem, any suggestion?

James Korner - Reply

My Acer E5-731 was dead and just by doing this (without the charger plugged in ) it solved it. nice!

Rogerio - Reply

Thank you!!!

Tara Lucas - Reply

It worked!!

Phew , I thought I had lost my Laptop.


Michael Ariyibi - Reply

The battery cell may have some unbalance. This i planned obsolescence. Manufacturer omit a proper balance circuit in the battery so over time the unbalance get bigger en the effective useable capacity will be reduced dramatically by the safety circuitry in the battery. This does not mean the cells are bad. You need to balance the cells, but this requires opening the battery, soldering a balance connector to the individual cells and using a balance charger. No manufacturer will tell you this nor will they admit it. I just reconditioned my battery laptop myself and it's still going strong after 3 years.

Andrea Campagnolo - Reply

Holy wow. The actual bloody service manual for 481PT makes no mention of this pinhole. I thought I shorted the battery and almost ended up ordering a new one (and a new MB for good measure). So yeah, guys, if your Acer M5 says it has a battery but refuses to work without AC, putting a stupid pin in the stupid hole while on AC power for 4 seconds solves the problem. For me, at least.

Danko - Reply

Will acer aspire R11, note book , work without a battery? The jacky!

jack raphael - Reply

It didn't work for me. It comes to a screen where it says "automatic repair, your pc did not start correctly". I've restarted it and it goes to a blank screen and the fan keeps kicking on, I've tried to push and hold the reset button and it didn't work. I've pulled the battery out and it didn't work. Help.

Tami - Reply

thank u so much it work !

Calin Toc - Reply

Did not work for me. When I reconnected the A/C power and pressed the power button, one of the blue lights on the front flashed 5 times and quit. No sign of life.

Tom Kleefisch - Reply

Did not work for me. My wife’s Aspire V simply died. When I reconnect the A/C power and press the power button, one of the blue lights on the front flashes 5 times and stops. No sign of life.

Tom Kleefisch - Reply

Happen to mine today , I was so scare to have lost my PC, only 7 months old !!

So I did the pin hole thing and VOILA !! back to work , every thing came back up !!

ernie baptista - Reply

Great !! just happen to me today, got to work 7:30 Try to turn on my PC, nothing silence , no fan no moden ,over an hour trying to see what had happen , did not know about the pin hole, saw the battery symbol paper clip in , and VOILA !! back on !!


ernie baptista - Reply

Hi - please describe how the laptop should be at the time when you hit the rest button:

- should it be plugged in and connected to power? or plug out?

- should the computer be powered on or off?

Asher - Reply

Thank you so much sir.

by the way, the laptop had lcd problem and was replaced a week ago. Smooth operation for 3 days then didnt used for 4 days due to travel. On the 7th day, smooth operation until it just turn off on its own. Tried turning it on without ac, no response. With ac, turned on for a second and when power button pressed again, it wont turn on. Unplug and plug ac and turned on only for a second. By the way, your instruction solved it, im just asking if you have info about the cause. Running the laptop at the moment. Waiting if it reoccur and hoping that it wont happen again. Cheers and God Bless

hiponiajerome - Reply

Once again, it always work but the problem also reoccurs. Its like, the laptop seems to work smoothly. After an hour or two, suddenly it dies. Cant be turned on again without ac, turned on with ac for a second then dies. Have to pin the battery reset button again and again during this scenario. Any advice?

hiponiajerome - Reply

I did the pinhole reset, but after that it did not turn on without the charger. how will I fix this? please help me

Glycel Gollayan - Reply

i think i damaged the botton, i used a pin to poke it , after checking it inside a notice that the botton is damage is there any fix on it?

lukearaquil - Reply

Couldn’t find it on my V3-571g

Chidi Uma - Reply

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