Redmi 8 does not turn on after water: step-by-step instructions for saving the phone

You dropped the Xiaomi Redmi 8 in water, and now it's not showing any signs of life? The situation is familiar to many — according to statistics, one in five smartphones gets water damage. But don't rush to bury the gadget: even if the screen is black and the buttons don't respond, there is a chance of recovery. The main thing is to act quickly and correctly.

Redmi 8 has no official water protection (IP-It's designed to survive a short-term dive -- if you take action right away. In this article, we'll look at what to do in the first few minutes, how to disassemble a drying phone, what mistakes make it worse, and when to carry it to service. And also - unique nuances for this model, which are not written on the forums.

Important: the algorithm depends on what fluids got into the phone (fresh water, salt water, soda), how long it spent underwater, and whether it turned on after the incident, and we'll look at all scenarios, from a slight splash to a complete drowning.

First steps: what to do immediately after falling into the water

If the Redmi 8 has fallen into the water and it hasn't turned off yet, don't press any buttons, shake it, or blow into the plugs, and your goal is to minimize the fluid flow on the board. Here's an emergency checklist.

Take your phone out of the water horizontally (not vertically!)

Turn it off immediately (clip the power supply). + Volume up for 10 seconds)

Extract. SIM-card and memory card (opening the tray with a paper clip)

Don't plug the charger!

Don't shake or blow into the connectors.-->

If the phone has already turned off, don't try to turn it on. A short circuit when you try to start can burn the power controller or processor. Especially dangerous if the liquid contained salt (sea water) or sugar (soda, tea) - they conduct current and accelerate corrosion.

⚠️ Warning: Never dry Redmi 8 with a hair dryer, battery or sun! Local overheating deforms the battery and the steam from the hair dryer penetrates deeper into the body. The only safe way is passive drying in the moisture absorber (rice, silica gel).

If the incident occurred with the phone turned on, and you have time before it is turned off – try to quickly back up important data through Settings. → Google → Backup. But don't take risks if the screen is already bugging or the phone is overheating.

Disassembly Xiaomi Redmi 8 for drying: step-by-step instructions

To save the phone as much as possible, you have to take it apart to access the board and the battery. The Redmi 8 has a non-removable back cover, but it can be neatly removed with a plastic blade or a mediator.

• 🔧 A set of screwdrivers (cross and flat)
• 📱 Plastic blade or mediator
• 🧲 Magnetic propeller substrate
• 🧴 Alcohol (isopropyl 90%+ medically)
• 🧻 Waxless napkins or cotton wool

Sequence of disassembly:

1. Turn off your phone (if you haven’t turned off already).
2. Heat the back cover with a hair dryer (temperature to) 60°C) 1-2 minutes, it'll soften the glue.
3. Carefully slap the lid on the side (start with the headphone jack).
4. Unscrew 10 screws that fix the metal plate.
5. Disconnect the battery plume (use a plastic spatula!).
6. Remove the battery and other components (camera, speaker).

After disassembly, wash the board with isopropyl alcohol (it displaces water and evaporates without a trace). Use a soft brush or cotton swab. Pay special attention to:

• 🔌 Charging connector (USB-C)
• 🎤 Microphone and dynamics
• 📶 Antenna contacts (at the top of the fee)
• 🔋 Battery contact.

Drying methods: what works and what will kill the phone

The most common mistake is to dry the Redmi 8 in rice, but it absorbs moisture, but it's not as efficient as silica gel, and the rice dust can get into the connectors.

The best option is a combination of alcohol washing + After the treatment of the payment with alcohol:

1. Place all components (board, battery, cover) in a sealed container with silica gel.
2. Close the lid and leave it for 24 hours.
3. After a day, take out and check for moisture (condensate).
4. If you have moisture left, repeat drying again. 12-24 hour.

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If you don't have silica gel on hand, use a silica gel-based cat filler (sold in pet stores) that absorbs moisture as well as specialized bags.

Don't turn the phone on right after drying! Give it at least 12 hours to acclimatize at room temperature. If artifacts appear on the screen after turning on, the phone overheats or discharges quickly - these are signs of corrosion of the boards, and you need repairs.

What to do if Redmi 8 doesn’t turn on after drying

If the phone doesn’t show signs of life even after drying properly, the problem may be:

• 🔋 Battery (swelled, failed)
• 🔌 Power controller (burned from short circuit)
• 📱 Processor or memory (contact corrosion)
• 🔌 Charging connector (oxidation of contacts)

The first thing to check is the charging response:

1. Connect the original cable to charging (at least) 5V/2And).
2. Look at the indicator: if it flashes red, the battery is discharged, if not burned at all, a power problem.
3. Try charging from another device (such as a power bank).

If the light isn't on, but the phone is warm, it's a sign of a short circuit on the board.

⚠️ Warning: Don't try to turn the phone on again! Every launch attempt adds to the damage.

If the phone vibrates when you connect the charger, but does not turn on, the problem may be in the firmware (lost after a power surge).

1. Press Power + Volume up for 10 seconds.


2. If the Mi logo appears, release the buttons.




3. Select Wipe Data (Settings Reset).

Even if the logo does not appear - it is a hardware breakdown, and without repair can not do.

When to contact the service: signs of malfunctions after water

Not all breakdowns after water can be repaired by yourself, but here are the symptoms for which you need to bring the Redmi 8 to the service center:

• 🔥 The phone is still warmed even when it is off.
• 🔋 The battery is swelling (see below the raised cover).
• 📵 No network (even after drying and restarting).
• 🔊 The speaker or microphone is hoarse/not working.
• 📲 Touch screen reacts chaotically.

The service will do:

• 🔍 Diagnosis with a multimeter (checking food chains).
• 🧪 Ultrasonic cleaning board (removes oxides).
• 🔧 Replacement of damaged components (charge controller, connectors).
• 🔋 Replacement of the battery (if it is swelling).

The cost of repairing Redmi 8 after water in 2026:

• Cleaning fees - from 1,500 to 3,000 rubles.
• Replacement of the charging connector — 800-1 500 ruble.
• Battery replacement — 1 200-2 000 ruble.
• Repair of the power controller — 2 500-4 000 ruble.

If the phone doesn’t turn on due to processor or memory corrosion, repairs may not be cost-effective (the cost will exceed the price of a new Redmi), in which case it makes sense to sell it for parts or put it into recycling.

Yeah, but I saved him!

Yeah, but it's broken.

Not yet, but I'm afraid it will.

I have a different model.-->

How to Prevent Water Intake in the Future

Even if you managed to resuscitate Redmi 8, the risk of water re-entry remains.

Use a sealed case (with a certificate) IP68)

Plug a protective film on the charging connector

Avoid using your phone in the bathroom or kitchen

Check the seals regularly (if the phone is handled)

Do not put your phone in your pocket without lightning.-->

If you are often in high humidity (such as exercising or working outdoors), consider buying a waterproof case.

• Spigen Rugged Armor (splash protection, impact-resistant).
• Nillkin Super Frosted (hermetic, with a button membrane)
• JETech Waterproof Pouch (full sealing, suitable for swimming)

You can also put a hydrophobic coating on a board (like LiquidPel's Nano-Coating). 100% It's protective, but it reduces the risk of corrosion when moisture gets in. 1 000-1 500 rupee.

Remember, all protection only works when the body is intact, and if you've already disassembled the phone, the seals could get damaged. IP68-The stain will not escape from the swelling.

Common Mistakes That Kill Your Phone After Water

Many users make things worse with the wrong actions, and here's what you absolutely can't do:

• 🔥 Drying with a hair dryer at maximum temperature - this deforms the battery and board.
• 🔌 Connect the charge "turn" - a short circuit will burn the controller.
• 🧊 Put the phone in the freezer - condensate will penetrate deeper when defrosting.
• 💦 Washing the board with water will only increase corrosion.
• 🔨 Self-soldiering fee without experience - the risk of damaging the tracks.

Another common mistake is to use salt or sugar to dry, which absorbs moisture, but leaves crystals that then conduct current and accelerate corrosion, and the same goes for newspapers or toilet paper, which leaves fibers in connectors.

If you've already made one of these mistakes, don't turn your phone on and bring it to the service as soon as possible, and the damage may not be critical yet, and the fee may be repaired.

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The rule of thumb when you get water is not to panic or rush. 90% of the malfunctions are due to the wrong actions in the first hours. It is better to lose a day to dry than to burn your phone in 5 minutes.

FAQ: Frequent questions about Redmi 8 water-water