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SOS Informatique Computer repair in Lyon - Individuals and businesses

I have spilled liquid on my computer

What you do in the first two minutes largely decides what can be saved. Do not start by finding out whether it still works.

The danger is not only the immediate short circuit : it is corrosion, which carries on working for days, silently, even on a machine that appears to have survived. Many "rescued" laptops fail two weeks later, for exactly that reason.

What to do immediately, in order

  1. Cut the power. Unplug the charger, then hold the power button down until it shuts off completely. Do not use the shutdown menu, it is too slow.
  2. Remove the battery if it is removable. If it is not, having the machine opened becomes even more urgent.
  3. Unplug everything: USB stick, mouse, external drive.
  4. Turn the machine over, lid open, in a tent position, on a towel. The liquid must come out the way it went in, not sink towards the motherboard.
  5. Blot without rubbing whatever you can reach.
  6. Leave it in that position, at room temperature, and do not touch it again.

What you must not do

Do not switch it on to check. That is the most frequent and most destructive mistake : current passing through a wet circuit destroys what could have been saved. Do not use a hairdryer: heat distorts components and pushes the liquid deeper. Rice does nothing: it absorbs moisture from the surrounding air, not from inside a circuit board, and leaves starch dust behind. Do not tilt the machine in all directions, you would spread the liquid.

Not all liquids are equal

  • Clean water is the least unfavourable case : barely conductive, it leaves few residues. Quick and thorough drying gives good chances.
  • Coffee, tea and wine leave corrosive deposits that keep attacking the tracks long after drying.
  • Sugary drinks and fizzy drinks are the worst : sugar sticks, holds moisture permanently and jams the keys mechanically. Professional cleaning is essential, drying alone will never be enough.
  • Salt water is extremely corrosive and calls for very rapid action.

How long should you wait ?

For air drying, allow at least forty-eight to seventy-two hours - and longer for a laptop. But let us be clear : drying alone only suits clean water, in small quantities. For everything else, waiting merely lets the corrosion progress. The right move is to have the machine opened and cleaned quickly.

What professional work involves

It means opening the machine, removing the residues before they settle, cleaning the boards with a suitable product, drying the components and checking what has been affected. Done within days, it saves a good share of machines. Done three weeks later, it mostly records the damage.

Your data first

Even when the machine does not come back, the drive is frequently intact and your documents can be recovered by connecting it to another computer. That is always the first thing we check. See data recovery.

A word about insurance : some home insurance policies cover this kind of damage. Photograph the machine and keep the quote, it may be useful.

Frequently asked questions

My computer still works after the spill, should I worry ?

Yes. Corrosion acts over days or weeks : a machine that works on the first day can fail well afterwards. A preventive clean is strongly advisable.

Does rice really work ?

No. It absorbs moisture from the air, not moisture trapped in the circuits, and it leaves residues. It is a persistent belief with no real effect.

What are the chances of saving the machine ?

It depends on the liquid, the quantity, and above all how quickly you react. Clean water with a machine never switched back on offers good prospects ; a fizzy drink with several attempts to power up, far less.

Further reading

Would you rather we took care of it ? See our emergency computer repair service, in Lyon and across the Rhone.

An accident just happened ?

Do not switch the machine on and call us : the first few hours count.

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