Not a notebook but a ProBook 6570b

[leroyxtc]

So I turned on my computer last night after discovering that the underside of it was wet due to an unnoticed water spill on my work table, but this was after I cleaned it externally and made sure it was dry, then I hooked it up and everything worked fine for a bit then after a few minutes (I left the room immediately the screen came on) I e when I got back the screen was black but the computer was still on. I tried clicking a few keys to wake the computer but nothing worked. I've kept it upside down for about 6 hours now but still no improvement. Please help me.

[Samrit26]

Hello,

I need to be very clear and calm here, because with liquid exposure what you do next matters more than what already happened.

What you’re describing is classic liquid ingress damage that progressed after power was applied.

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What likely happened (important to understand)

Even though:

• You wiped the outside

• The laptop appeared dry

• It powered on initially

Water can remain inside the chassis, especially:

• Under the keyboard

• On the motherboard

• Near the display connector and backlight circuit

When you powered it on:

• Electricity + residual moisture = short circuit

• Damage often appears minutes later, not immediately

• A black screen with the system still “on” usually means:

  • Display/backlight circuit failure or

  • GPU / motherboard damage

The fact that the screen went black after you left the room is a key red flag.

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First — STOP doing these things ❌

Please do not:

• Power it on again

• Plug in the charger

• Press keys repeatedly

• Try to “wake” the screen

• Leave it connected to power “to test”

Every power attempt can increase permanent damage.

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Immediate actions (do these now)

Even though some time has passed, this still helps.

1️⃣ Power isolation (critical)

• Shut the laptop down (hold power 10–15 seconds)

• Unplug the charger

• If the battery is removable → remove it
  (Most modern laptops are internal — that’s OK)

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2️⃣ Proper drying position

Keeping it upside down is not enough.

Do this instead:

• Place the laptop in a tent / inverted V shape
  (keyboard facing down, slightly open)

• Put it in a dry, warm room

• Do not use:

  • Hair dryer

  • Heat gun

  • Oven

  • Direct sunlight

Gentle airflow is fine. Heat is not.

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3️⃣ Time requirement (very important)

6 hours is not sufficient.

For liquid exposure:

• Minimum: 48 hours

• Safer: 72 hours

This allows moisture trapped under components to evaporate.

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About the black screen symptom

This usually means one of these has already failed:

• Display backlight circuit

• LCD panel power rail

• eDP/LVDS display connector

• GPU output stage

• Motherboard power regulation

Sometimes:

• External monitor still works

• Internal screen stays black

But do not test this yet.

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What NOT to do (common myths)

🚫 Rice (does nothing for internal electronics)
🚫 Repeated power cycling
🚫 “It worked once so it’s fine”
🚫 Waiting a few hours then trying again

Liquid damage is often progressive, not instant.

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The honest reality (I won’t sugarcoat this)

Because the laptop was:

• Wet underneath

• Powered on afterward

• Ran long enough to heat internally

There is a real risk of permanent motherboard damage.

However:

• Some systems do recover if power is removed early enough

• Others require board-level repair

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The only correct next step after drying

After at least 48–72 hours, one single test only:

1. Plug in charger

2. Power on

3. Observe:

   • Any display?

   • Any blinking LEDs?

   • Any fan activity?

If:

• Screen remains black

• Or shuts off again

👉 Stop immediately.

At that point:

Depot repair (ship to repair center) is the only supported option.

Liquid damage cannot be fixed by software.

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Very important note about warranty

Liquid damage is:

• Usually not covered by warranty

• Internal liquid indicators turn red/pink

Be honest with repair centers — hiding it makes things worse.