Samsung Galaxy Tab S2 Won't Power On: A UK Guide

There are few things more frustrating than a beloved piece of technology suddenly refusing to spring to life. If your Samsung Galaxy Tab S2, specifically the SM-T813 model, has unexpectedly gone dark and won't turn on, you're not alone. Many users encounter this perplexing issue, often after a period of disuse or a seemingly innocuous power cycle. You've likely tried the obvious – mashing the power button, fiddling with volume combinations, and desperately plugging in a charger you know is working. The peculiar symptom of the two navigation lights next to the home button briefly illuminating before fading back into darkness can be particularly mystifying. This guide is here to walk you through a comprehensive set of troubleshooting steps, designed to diagnose and hopefully resolve why your cherished tablet has decided to take an unscheduled nap.

Understanding Why Your Tablet Might Not Turn On

Before diving into solutions, it's helpful to understand the most common culprits behind a Samsung tablet refusing to power up. These issues can range from simple oversights to more complex hardware failures.

• Completely Drained Battery: This is by far the most frequent reason. If a tablet has been left uncharged for an extended period, its battery can enter a deep discharge state, requiring more time and specific conditions to revive.
• Faulty Charger or Cable: Even if your charger works for other devices, it might not be delivering enough power, or the cable could be damaged internally, preventing a proper charge.
• Software Glitch or Freeze: Sometimes, the tablet's operating system can freeze or crash, leading to a black screen that mimics a powered-off state. This is often resolved with a force restart.
• Damaged Charging Port: Physical damage or debris in the USB charging port can prevent the tablet from receiving power.
• Battery Degradation or Failure: Over time, all rechargeable batteries degrade. An old or faulty battery might no longer hold a charge or deliver sufficient power to boot the device.
• Hardware Malfunction: Less common, but possible, are issues with internal components such as the power management integrated circuit (PMIC), the display, or the main logic board.

Initial Checks: Power and Charging Fundamentals

Let's start with the basics, ensuring your tablet is receiving adequate power. This step is crucial, as many power-on issues stem from charging problems.

1. Verify Your Charger and Cable

Firstly, ensure you're using a charger and USB cable that are known to be fully functional. It's not enough for them to work with your phone; sometimes, tablets require a higher amperage charger (typically 2A or more) than smartphones. Try a different wall adapter and a different USB cable if you have them. Ideally, use the original Samsung charger that came with your Tab S2, or a high-quality third-party equivalent.

2. Plug into a Wall Outlet

Always plug your tablet directly into a wall power outlet, not a computer's USB port. Computer USB ports typically provide lower amperage, which might not be sufficient to charge a deeply discharged tablet or to power it on. Ensure the wall outlet itself is working by testing it with another appliance.

3. Give it Ample Time to Charge

If your tablet's battery is completely dead, it might not show any signs of life immediately after plugging it in. There won't be a charging indicator, nor will it respond to power button presses. This is normal for a deeply discharged battery. Plug it in and leave it charging undisturbed for at least 30 minutes, ideally an hour. Some users report success leaving it for several hours. This allows the battery to accumulate enough charge to initiate the boot process.

4. Observe the Charging Indicator (If Any)

After charging for a while, look for any charging indicators. This could be a battery icon on the screen, or perhaps an LED light on the tablet itself. If you see nothing, continue troubleshooting, but keep it plugged in.

Force Restart Techniques: Waking a Frozen Tablet

If charging doesn't immediately yield results, the next step is to attempt a force restart. This can often resolve software freezes that prevent the tablet from booting.

1. The Standard Power Button Hold

Even if you've tried this, try it again with more dedication. Locate the slim power button on the side or top of your Tab S2. Press and hold it firmly for at least 15-20 seconds. Sometimes, a frozen device just needs a longer press to force a shutdown and restart. After releasing, wait a few seconds, then press it briefly again to see if it powers on.

2. Power Button and Volume Down Combination

This is the most common force restart method for Samsung devices. While the tablet is still plugged into its charger (optional, but recommended), simultaneously press and hold both the Power button and the Volume Down button. Keep them held down together for a full 10 to 15 seconds. If successful, the tablet should vibrate or the Samsung logo should appear, indicating a boot cycle has begun. Release the buttons as soon as you see the logo.

3. The Extended Power Hold

If the above combination doesn't work, particularly if you suspect a very stubborn software freeze, try holding only the Power button for an extended period – up to two minutes. This can sometimes drain residual power and force a hard reset. After holding for two minutes, release, then press the power button briefly to attempt a normal boot.

Addressing the Specific Symptom: Flashing Navigation Lights

Your particular symptom – the two navigation lights (return and multi-window) next to the home button lighting up for 2 seconds when plugged in or a button is pressed – is a crucial clue. This indicates that the tablet is receiving power, and some part of its internal circuitry is responding. It suggests the issue isn't a completely dead power supply or charging port.

What this symptom often points to is:

• Critically Low Battery: The battery has just enough residual charge to power these minimal indicators, but not enough to initiate a full boot sequence or power the main display. In this case, extended charging (as described in "Give it Ample Time to Charge") is your best bet.
• Power Management IC (PMIC) Issue: The PMIC is responsible for distributing power within the tablet. If it's faulty, it might supply power to minor components (like the lights) but fail to properly power the main components needed for booting the screen and OS.
• Display or Mainboard Fault: Less likely if the lights are working, but possible. If the display itself is faulty or there's a problem on the mainboard that prevents proper power delivery to the display, the tablet might be booting but simply not showing anything on screen.

Given this specific symptom, focus heavily on the charging aspect. The tablet is trying, it just can't quite make it. Patience with charging is key here.

Advanced Troubleshooting: Battery Drain and Recharge Cycle

This method is a last resort for stubborn battery issues, particularly when the tablet seems to be stuck in a strange power state.

1. Completely Drain the Battery: If the tablet has any residual charge, leave it unplugged and let it sit for several hours, or even a day or two, to ensure the battery completely depletes. You want it to be absolutely flat.

2. Leave it Off: After it's fully drained, leave it unplugged and off for another 30 minutes.

3. Plug In and Charge: Plug the tablet back into a wall charger (using a known good cable and adapter) and leave it to charge undisturbed for at least 15-30 minutes before attempting to turn it on. This gives the battery a chance to build up a substantial initial charge without the drain of a boot attempt.

4. Attempt to Power On: After the charging period, try pressing and holding the Power button. If it doesn't work, try the Power + Volume Down combination.

Troubleshooting Summary Table

Here's a quick reference for common symptoms and their corresponding initial solutions:

When to Seek Professional Help

If you've diligently followed all the steps above and your Samsung Galaxy Tab S2 still refuses to power on, it's highly likely that the issue is beyond software and simple battery remedies. At this point, you should consider professional assistance.

• Contact Samsung Support: Check if your tablet is still under warranty. Samsung's official support can provide specific diagnostics or arrange for repair.
• Visit a Certified Service Centre: Take your tablet to a reputable electronics repair shop. They have the tools and expertise to diagnose hardware issues like a faulty battery, a damaged charging port, a failing power management IC, or a mainboard problem. Be prepared for potential repair costs, especially if the device is older, as replacement parts and labour can sometimes approach the cost of a newer, entry-level tablet.

Always ensure any repair shop is reputable and uses genuine Samsung parts where possible. Unauthorised repairs can sometimes cause further damage or void remaining warranties.

Preventative Measures for Battery Health

To minimise the chances of your tablet refusing to turn on due to battery issues in the future, consider these preventative measures:

• Avoid Deep Discharges: Try not to let your tablet's battery drain completely to 0% regularly. Charge it before it gets critically low.
• Use Quality Chargers: Stick to the original Samsung charger or certified third-party alternatives. Cheap, unbranded chargers can damage your battery over time.
• Store with Partial Charge: If you plan to store your tablet for an extended period (weeks or months), ensure it has about a 50-60% charge. Storing a completely dead or fully charged battery for long periods can shorten its lifespan.
• Avoid Extreme Temperatures: Don't leave your tablet in direct sunlight, in a hot car, or in extremely cold conditions. Extreme temperatures can severely degrade battery performance.

Frequently Asked Questions (FAQs)

Q1: How long should I charge a completely dead Samsung tablet before trying to turn it on?

A: If your tablet is completely dead with no signs of life, plug it into a wall charger and leave it undisturbed for at least 30 minutes to an hour. For a deeply discharged battery, it might even require several hours of charging before it accumulates enough power to boot up. Patience is key here.

Q2: My tablet gets warm when I plug it in, but still won't turn on. What does that mean?

A: If your tablet gets noticeably warm or hot when plugged in but doesn't show any signs of life, it could indicate a serious hardware issue, such as a short circuit, a faulty battery, or a problem with the power management chip. Immediately unplug the tablet and do not attempt to charge it further. This situation warrants professional inspection to prevent further damage or safety risks.

Q3: Can a broken screen prevent my Samsung tablet from turning on?

A: Yes, a severely damaged screen can sometimes prevent a tablet from appearing to turn on, even if the internal components are working. If the screen is completely shattered or if the display's internal circuitry is shorting out, it might not display anything, or it could even prevent the device from booting correctly. The tablet might be on, but you just can't see it. In such cases, professional repair or screen replacement would be necessary.

Q4: What if the charging indicator light doesn't appear when I plug it in?

A: If there's no charging indicator light or battery icon, first try a different charger, a different USB cable, and a different wall outlet. If none of these work, the issue could be with the tablet's charging port (damaged or clogged with debris) or a deeper internal power issue. Use a flashlight to inspect the charging port for any visible damage or foreign objects. If it looks fine, it likely points to an internal hardware problem.

Q5: Is it worth repairing an old Samsung Galaxy Tab S2 if it won't turn on?

A: The decision to repair an old tablet depends on the cost of repair versus the cost of a new device, and your sentimental attachment. For an older model like the Galaxy Tab S2, a battery replacement might be economical, but if the issue is a mainboard or display fault, the repair cost could approach or exceed the value of a similar-spec new tablet. Get a diagnosis and a repair quote from a reputable service centre before deciding. Sometimes, it's more cost-effective to invest in a newer model with updated features and better performance.

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