Samsung Galaxy S24 Won’t Turn On: 9-Step Troubleshooting Guide (2026)

Samsung Galaxy S24 models won’t turn on for several different reasons—some are software-related and fixable in minutes, others point to hardware problems requiring professional repair. This guide covers the most common causes and practical troubleshooting steps you can try before contacting Samsung support.

Common Causes at a Glance

Below is a quick reference showing what prevents your S24, S24+, or S24 Ultra from powering on:

Issue	Symptoms	Difficulty Level	Likely Fix Time
Deeply drained battery	Completely black screen, no vibration on power button	Easy	30-60 minutes
Software freeze	Black screen but responds to force restart (vibration felt)	Easy	2-5 minutes
Faulty USB-C port or cable	Won’t charge, doesn’t respond to wireless charger either	Easy	10-30 minutes testing
Moisture detection error	USB port blocked from charging due to safety lockout	Easy to Moderate	2-3 hours
Display or battery connector loose	No screen, but feels slight vibration on power button	Moderate	15 minutes (with risk)
Corrupted firmware	Bootloop, stuck on Samsung logo, or no response	Advanced	1-2 hours (requires PC)
Hardware failure (power IC, motherboard)	No signs of life with any charging method or button press	Hardware only	N/A – needs repair

Step 1: Charge Your S24 for at Least 30 Minutes

If your Galaxy S24 has been sitting unused for weeks or was heavily drained, the battery may be too depleted to show any signs of life. This is the most common scenario, and also the easiest to fix.

How to Properly Charge a Dead S24

Use the right charger: Connect to a 25W USB-C Power Delivery (PD) charger. The standard S24 and S24+ support 25W charging, while the S24 Ultra can handle up to 45W wired charging. Avoid using old or third-party chargers that may not provide enough current.
Use the included cable: Samsung includes a USB-C to USB-C cable rated for 5A in the box. Third-party cables may limit charging speed.
Try a wall outlet, not a computer: Desktop and laptop USB ports typically deliver only 5W or 10W. Use a proper wall outlet USB-C adapter.
Let it sit: Leave the phone untouched for at least 30 minutes. Avoid pressing buttons or moving it. Many users see the charging indicator light appear after 15-20 minutes of uninterrupted charging.
Try a different outlet: A faulty outlet or power strip can deliver incorrect voltage. Switch to a different outlet in another room if possible.

Once you see a charging indicator light, vibration, or the Samsung logo, the device is no longer in deep-discharge mode and should respond normally to a force restart.

Step 2: Force Restart Your Galaxy S24

If your S24 is unresponsive or stuck on a black screen, a force restart can resolve software freezes or temporary glitches. This does not erase any data.

How to Force Restart

Press and hold the Volume Down button and the Side (Power) button simultaneously.
Keep both buttons pressed for 10 to 15 seconds. You’ll feel one or more vibrations.
Continue holding even after the vibrations. Expect to see the Samsung logo after about 10 seconds.
Release both buttons as soon as the Samsung logo appears.
The device will boot normally. This process takes about 30 seconds total.

If you see nothing after 15 seconds: It’s likely a hardware issue or the battery is still too drained. Return to Step 1 and charge for another 30 minutes, then repeat the force restart while still plugged in.

Step 3: Inspect the USB-C Charging Port

Dirt, lint, or moisture in the charging port prevents proper power delivery and can cause the device to appear completely dead.

Cleaning the Port

Inspect visually: Use a flashlight and look directly into the USB-C port on the bottom of the S24. Look for white or greenish deposits (corrosion), dirt, or lint buildup.
Use compressed air: The safest method is a can of compressed air held about 2-3 inches away from the port. Use short bursts to dislodge debris. Do not use your mouth to blow air—saliva causes corrosion.
Use a non-metallic tool cautiously: If visible lint is stuck, a wooden toothpick or soft plastic pick can gently remove it. Never use metal tweezers or pins—the USB-C port has delicate pins that short-circuit easily.
Do not insert anything rigid: The port is fragile. Inserting anything rigid can damage the connector pins permanently.
Let it air dry: After cleaning, wait 30 seconds before attempting to charge again.

After cleaning, reconnect the charger and wait another 15 minutes to see if the device responds.

Step 4: Test With a Different Charger and Cable

A damaged charging cable or faulty charger can prevent the S24 from charging and powering on, even if the port itself is fine.

What to Test

Borrow a known-good 25W+ USB-C charger: If you have access to another Samsung phone or a friend’s laptop charger with USB-C, use it to test. A charger from a Google Pixel, iPad, or recent MacBook will also work.
Try a different USB-C cable: The cable that came with your S24 may have internal damage. Even if it looks fine, the copper contacts can corrode or the internal wires can break from repeated bending.
Plug into a different outlet: Don’t reuse the same outlet if one didn’t work. Faulty outlets can deliver wrong voltages.
Wait another 30 minutes: Use the borrowed charger for a full 30 minutes without pressing any buttons.

If the phone charges with a different cable or charger, your original cable or charger is faulty and should be replaced.

Step 5: Try Wireless Charging

The Galaxy S24, S24+, and S24 Ultra all support Qi wireless charging at 15W. If your phone charges wirelessly but not via USB-C, the problem is definitely the USB-C port or cable.

Using a Wireless Charger

Ensure the phone is dry: Wireless charging does not work reliably if there’s moisture on the back of the device or inside the charging coil. If your S24 has been near water, wait 2-3 hours and dry the back glass with a soft cloth.
Place the phone centered on the charger: Wireless charging is position-sensitive. The back of the S24 must be directly over the charger coil. Expect a slight vibration and/or a notification when charging starts.
Leave it for 15 minutes: Wireless charging is slower than wired. After 15 minutes, the device should show signs of charging.
Try a different wireless charger: If available, test with a different Qi charger to rule out a faulty charger.

If your S24 charges wirelessly but not via USB-C, the USB-C port has a problem. Proceed to the professional repair section below.

Step 6: Address Moisture Detection Lockout

Samsung devices include safety features that block charging if moisture is detected in the USB-C port, even if the moisture has already evaporated. This is a known issue on the Galaxy S24 series and can persist for hours or days.

Clearing Moisture Detection Errors

Unplug the charger immediately: If you see an on-screen warning saying “moisture detected” or the charging animation is missing, disconnect the charger right away.
Leave the port exposed to air: Let the phone sit with the USB-C port facing downward in a warm, dry room. Avoid using a hair dryer—heat can damage internal components.
Wait 2-3 hours minimum: The moisture detection sensor requires time to reset. Do not attempt to charge during this period.
Try charging again: After 2-3 hours, attempt to charge using the known-good 25W charger. If the warning reappears, wait another 2-3 hours and try again.
Use wireless charging while waiting: Wireless charging bypasses the USB-C port entirely, so you can keep the battery topped up while the port dries.

Step 7: Apply Physical Pressure (Display Connector Issue)

If your S24 was recently dropped, the battery or display cable may have become partially disconnected inside the device. Applying firm pressure to the back and front can sometimes reseat these connectors temporarily.

How to Apply Pressure Safely

Do not disassemble the phone: Opening the back panel voids your warranty and can cause additional damage.
Use your thumbs: Press the back of the phone with firm, even pressure from your thumbs along the edges and center. Hold for 5-10 seconds.
Listen for a “click”: Internal connectors sometimes make a small clicking or popping sound when they reseat.
Try a force restart immediately: While plugged in, attempt a force restart (Step 2) right after applying pressure.

Important: This is a temporary workaround. If the phone turns on after pressure but dies again, it indicates a loose connector needing professional service.

Step 8: Boot Into Recovery Mode and Wipe Cache

If the S24 is stuck in a bootloop, stuck on the Samsung logo, or experiencing software corruption, wiping the cache partition can often resolve the issue without deleting your data.

Entering Recovery Mode

Power off the device completely.
Press and hold the Volume Up button and the Side (Power) button simultaneously.
When you see the Samsung logo, release both buttons.
The device will boot into Recovery Mode showing a blue “Android Recovery” menu.

Wiping the Cache Partition

Use the Volume Down button to navigate to Wipe cache partition.
Press the Side (Power) button to select it.
Confirm by selecting Yes.
Once complete, select Reboot system now.

What this does: Wiping the cache partition removes temporary system files that may be corrupted. This does not erase your photos, messages, contacts, or apps.

Step 9: Flash Stock Firmware With Odin (Advanced Users Only)

If the previous steps fail and your S24 is still unresponsive, you may need to reflash the device’s firmware. This requires a Windows PC and Samsung’s Odin flashing tool.

Critical Warning: Flashing the wrong firmware can permanently brick your device. Only proceed if you are comfortable at a technical level. If unsure, contact Samsung support instead.

Overview of the Process

Download the correct firmware for your exact S24 model and region from Samsung’s official support site.
Download Odin from Samsung’s official support channels or trusted tech forums like XDA Developers.
Boot phone into Download Mode: Power off the phone, press and hold Volume Up + Volume Down, then connect the USB-C cable. Press Volume Up to confirm.
Open Odin and select files: Load the BL, AP, CP, and HOME_CSC files from your extracted firmware folder.
Start the flash: Click the Start button. The process completes in 5-10 minutes. A green “PASS” means success.
The phone will reboot automatically and display the setup screen when done.

Recommended Replacement Chargers and Cables

If your charger or cable is faulty, here are Amazon-linked replacements to get your S24 charging again:

25W USB-C Wall Chargers

Samsung Official 25W PD Charger (2-Pack) — Genuine Samsung chargers with official reliability. Recommended for S24 standard and S24+.
Samsung 25W Wall Charger with 6.6ft Cable — Compact official Samsung design with longer cable included.
25W USB-C Fast Charger with 10ft Cable — Third-party option with extra-long cable, compatible with all S24 variants.

Wireless Chargers (15W Qi-Certified)

15W Samsung Wireless Fast Charging Pad — Optimized for S24 series. Faster than standard 10W chargers.
Qi-Certified 10W Wireless Charging Stand — Works with all S24 variants. Includes 5V/2A adapter.

When to Seek Professional Repair

If none of the above steps work, your S24 likely has a hardware problem. Contact Samsung support or visit an authorized service center.

Samsung Warranty Coverage (as of 2026)

Standard Warranty: All Galaxy S24 models include a 1-year limited manufacturer warranty covering hardware defects. Some regions offer 24 months.
What’s Covered: Defective power buttons, charging ports, batteries, display connectors, and motherboard issues are covered. Water damage is not typically covered unless you have Samsung Care+.
Out-of-Warranty Repairs: Typical costs range from $100 to $300 depending on the part and region.

Samsung Care+ Extended Warranty

If you purchased Samsung Care+ coverage, you’re protected for accidental damage (drops, liquid spills) with a $99 repair/replacement fee, and screen damage with a $29 flat fee. Check your original purchase receipt or Samsung’s website to see if Care+ is active on your device.

Finding an Authorized Service Center

Visit Samsung Support and use the “Service Center Locator” tool to find the nearest authorized repair center for your S24.

Frequently Asked Questions

Q: How long should I charge a completely dead S24 before it shows any signs of life?

A 25W charger typically requires 15-30 minutes of continuous, undisturbed charging to revive a deeply depleted battery. If you see no charging indicator light after 30 minutes, the charger, cable, or USB-C port is likely faulty. Switch to a different charger and try again.

Q: My S24 feels warm after sitting off for a week. Should I be concerned?

Slight warmth is normal during deep charging recovery. However, if the device is too hot to touch, disconnect the charger immediately. Excessive heat suggests an internal short circuit or defective battery requiring professional inspection.

Q: Is it safe to use a 45W charger (from the S24 Ultra) on my regular S24 or S24+?

Yes, it is safe. The S24 and S24+ will only draw 25W from a 45W charger—the device only pulls the power it can handle. Conversely, a 25W charger is safe for the S24 Ultra, just slower.

Q: My phone was in water. Can I still try these steps?

If your S24 was submerged or exposed to significant moisture, do not attempt to charge it immediately. Wait 48-72 hours in a dry room to let all internal moisture evaporate. If you detect any unusual behavior (excessive heat, burning smell) while charging, stop immediately and seek professional service.

Q: Will wiping the cache or doing a force restart erase my data?

No. A force restart is a simple reboot—no data is lost. Wiping the cache partition removes temporary system files only and preserves all your photos, messages, contacts, apps, and personal settings. However, flashing firmware with Odin will erase all data and restore the phone to factory conditions. Back up your data before attempting any firmware flash.