iPhone liquid damage: what to do in the first hour, and why rice makes it worse
A wet iPhone is a race against corrosion, not against water. What you do in the first hour changes the outcome more than anything a technician does later.
Every hour counts
corrosion begins within minutes and keeps spreading while the phone sits powered on.
- Power the phone off immediately and do not plug it in. Charging a wet phone can short the board.
- Skip the rice. It does not pull moisture out of a sealed phone and it lets corrosion keep running.
- Bring it in for a teardown and ultrasonic clean. Assessment is quoted after inspection.
Water is not what kills the phone. Corrosion is.
Water on its own is mostly harmless to a powered-off board. The damage comes from what is dissolved in it. Tap water, pool water, coffee, soda and seawater all carry minerals and salts that stay behind when the liquid evaporates. Those residues bridge tiny traces on the logic board, and once the phone is powered on or charging, current flows where it should not.
That is why the failure is delayed. The phone often works when it comes out of the water, works for a week, and then starts rebooting, losing touch, or refusing to charge. The corrosion was progressing the whole time. A proper liquid damage repair is a cleaning job, and it has to happen before the corrosion reaches components that cannot be replaced individually.
The first hour: what to do and what never to do
Power the phone off the moment it leaves the water. Do not unlock it to check if it still works, do not take a photo of it, and do not swipe through notifications. Every second of power is current through wet circuitry.
Then leave it alone until it reaches a bench.
- Do not charge it. Charging a wet phone is the fastest way to turn a cleanable board into a dead one.
- Do not use rice. It cannot pull moisture through a sealed chassis, and the dust it sheds gets into ports and speakers. Studies have found rice does no measurable good and delays real treatment.
- Do not use a hairdryer, an oven, or a hot car. Heat drives moisture deeper and softens adhesives and battery seals.
- Do not shake it or press the buttons repeatedly, which pushes liquid further along the board.
- Do not plug in headphones or a cable to test it, and do not put it on a wireless charger.
- If it fell in salt water, pool water or a sugary drink, treat it as urgent. Those are the most corrosive cases.
Why it works fine and then dies three weeks later
The classic liquid damage story is a phone that survived the drop in the sink, worked normally for two weeks, and then stopped charging or lost its camera. What happened underneath is a corrosion bridge growing across a pair of contacts until it changed the resistance enough to break a circuit. The parts that fail first are usually the ones carrying the most current: the charging circuit, the display connector, the camera and Face ID assemblies.
This is also why a phone that has been wet is worth inspecting even if it currently works. Cleaning before symptoms appear is dramatically cheaper than replacing a charging IC or losing a Face ID module that is paired to the board.
What a real liquid damage repair involves
Anyone can put a phone in a bag of desiccant and hand it back. That is not a repair. Here is what actually removes the cause.
- Full teardown to the bare logic board, with the battery disconnected first.
- Inspection under magnification to map corrosion, burned traces and damaged connectors.
- Ultrasonic cleaning of the board in the correct solution for the residue involved, not a generic bath.
- Corrosion treatment and, where needed, component-level rework of damaged traces or connectors.
- Reassembly, seal replacement, then a 24 to 48 hour test period watching for intermittent faults.
- A straight answer at the end: what works, what does not, and what it will cost before you commit.
When the goal becomes your data
Sometimes the phone is not coming back, and the honest job is recovering the photos, messages and account access. If the board is beyond economical repair, we tell you that early and help you get the data off where possible, rather than selling you a repair that will not hold. That conversation happens before you spend money, not after.
What it costs
Liquid damage is quoted after inspection, because the outcome depends on how far corrosion has spread. Assessment starts at the $49 diagnostic, which is waived if you go ahead with the repair.
Why MTech Repair
A repair bench, not a mall kiosk.
Diagnostics happen in front of you, parts grades are named before they are ordered, and every device leaves with a tested result rather than a promise.
- Quote first
- You approve the exact price before a single screw comes out.
- 90-day warranty
- Workmanship is covered, on both local and mail-in repairs.
- Same-day bench
- Most phone repairs are finished while you wait, 45 to 60 minutes.
- Tracked both ways
- Mail-in repairs ship insured and tracked in both directions.
Common questions
What people ask before booking this repair
Get it fixed
Two ways to hand it over, one standard of work.
Drop off or meet up around Flemington for same-day service, or mail the device in from anywhere in the US. Phones are tested before and after, and you hear from a technician, not a call center.
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