How to turn on an ASUS laptop without a power button: from the keyboard to disassembling the case

Power button on a laptop ASUS - one of the most vulnerable places: it breaks due to liquid ingress, mechanical damage, or simply due to wear. If your ZenBook, ROG Strix or TUF Gaming does not respond to pressure, do not rush to take it to the service center. In 80% of cases, the laptop can be started using alternative methods - without soldering or replacing microcircuits.

In this article we will look at all working methods of inclusion, from the simplest (via a keyboard or charger) to the emergency (disassembling and closing contacts). You will also find out which models ASUS support hidden BIOS features for emergency startup, and how to avoid common mistakes when manipulating hardware. If you are not confident in your skills, skip the disassembly sections and pay attention to software solutions.

1. Checking the obvious reasons: why the laptop won’t turn on

Before you try drastic methods, make sure that the problem is with the power button and not with another component. Here three key signs button malfunction:

• 🔋 The laptop does not respond to pressing, but the charging indicator is on (which means power is supplied).
• 🖥️ When connected to an external monitor via HDMI or Type-C no signal.
• 🔄 The laptop turns on only after repeated presses or if you press the button at a certain angle.

If at least one of the points matches, the problem is definitely in the button. If not, check:

• 🔌 Power supply performance (try another charger).
• 🔋 Battery condition (remove it and try to turn on the laptop from the network).
• 🔌 Contacts on the motherboard (when disassembling, look for oxidation or burnt tracks).

⚠️ Attention: If laptop ASUS does not show signs of life (no indication, the case does not heat up), do not try to turn it on by closing the contacts. This may indicate a short circuit or failure of the south bridge - in this case, diagnostics are required at the service center.

If you are sure that the button is to blame, move on to the next section. For models ASUS ROG (For example, Zephyrus G14 or Strix Scar) also check availability hard reset BIOS - sometimes this solves the problem of a “dead” launch.

2. Method 1: Turn on via keyboard (for models with Wake-on-LAN support)

Some laptops ASUS (mainly business lines ZenBook Pro And ExpertBook) support the function Wake-on-LAN or Wake-on-Keyboard. This allows you to turn on the device using a specific key combination, even if the power button does not work.

Instructions:

1. Connect your laptop to the charger.
2. Press and hold the key Esc (or F2/Del to enter the BIOS) for 10–15 seconds.
3. If the laptop does not respond, try the combination Ctrl + Esc or Fn + Power (even if the button is broken, software emulation sometimes works).
4. For models with Windows 11 try it Win + Ctrl + Shift + B - this reloads the graphics driver, which can initiate startup.

Model ASUS	Supported Combination	Note
ZenBook 14/15 (UX425, UX534)	Fn + F7	Works only when the charger is connected.
ROG Strix G15/G17	Ctrl + Home	Requires activation in BIOS (Advanced → Power Management).
VivoBook S14/S15	Alt + P	The function is disabled after resetting the BIOS.
TUF Gaming A15/A17	Shift + Power (emulation)	Works only on BIOS firmware newer than 2021.

If none of the combinations work, move on to the next method. Please note that on budget models (for example, ASUS X515 or E410) this feature is often disabled at the firmware level.

3. Method 2: Emergency start via charger (only for certain models)

Some laptops ASUS (mostly rulers ROG And TUF Gaming) support Auto-on function when power is connected. This works if:

• 🔌 The laptop was turned off correctly (not through a forced shutdown).
• 🔋 The option is activated in the BIOS Power On by AC or Resume by AC Loss.
• 🔄 The battery has been removed or is completely discharged.

How to check:

1. Unplug the charger.
2. Remove the battery (if possible without disassembling - for example, on ASUS ROG GL553 or FX504).
3. Reconnect the charger. The laptop should turn on automatically after 5-10 seconds.

If the laptop does not respond, then the function is disabled in the BIOS. To activate it, you will need to temporarily repair the power button (for example, put a piece of foil under it) or use the following method.

⚠️ Attention: Do not try to turn on the laptop via the charger if it has been turned off forcibly (by holding down the power button). This may cause damage VRM controller on the motherboard.

Remove the battery (if possible)|Disconnect all USB devices|Use the original charger|Try a different outlet-->

4. Method 3: Disassemble and short circuit the power button contacts

If software methods do not help, it remains mechanical method — close the contacts of the power button manually. This is the most reliable method, but requires caution. You will need:

• ⚒️ Plastic spatula or pick for disassembly.
• 🔧 Screwdriver (usually Phillips #0 or T5).
• 📎 A paperclip or tweezers for closing contacts.

Step by step instructions:

1. Turn off the laptop and disconnect the battery (if it is removable).
2. Remove the bottom cover. On most models ASUS it is secured with screws and latches. Be careful with latches - they often break.
3. Find it on the motherboard power button contacts. Usually these are two small pins with the inscription PWR_SW, Power BTN or just PW.
4. Gently close the contacts with a paperclip or tweezers for 1-2 seconds. The laptop should turn on.

If you are not sure about the pin locations, look service manual for your model. For example, for ASUS ROG Zephyrus G14 the contacts are located next to the power connector, and on VivoBook S14 — near the touchpad.

Where can I download the service manual for ASUS?

Official diagrams and manuals can be found on the website ASUS support (enter your laptop model → "Manual & Documents" section). For older models (eg K550 or X550) search on forums like BadCaps or LaptopMain.

Critical: Never close the contacts with metal objects (knife, scissors) if the laptop is connected to the network. This may cause a short circuit and damage the motherboard.

5. Method 4: Turning on via BIOS (if the laptop has been turned on at least once)

If the laptop turned on at least once after the button broke, you can configure automatic start according to schedule or when opening the lid. This method is suitable for models with UEFI BIOS (almost all ASUS after 2015).

Instructions:

1. Turn on the laptop using any of the previous methods (for example, by closing the contacts).
2. At startup, press F2 or Delto enter the BIOS.
3. Go to section Advanced → APM Configuration (or Power Management).
4. Activate options:
   • Power On By Lid Open — switching on when opening the lid.
   • Resume By Alarm — start by timer (set the time 1–2 minutes ahead).
   • Power On By Keyboard — activation from the keyboard (if supported).

Save the settings (F10) and reboot your laptop.

Now the laptop will turn on when you open the lid or according to a schedule. This method is especially convenient for ASUS ZenBook Flip or VivoBook Flipwhere the lid is opened frequently.

⚠️ Attention: On some models (ROG Strix GL503, TUF FX505) after activation Resume By Alarm The laptop may turn on accidentally during transport. Disable the feature if you do not plan to use it.

6. Method 5: Using an external USB device (for advanced users)

If you have experience with Arduino or Raspberry Pi, can be collected external power button emulator. This method is suitable for permanent use if the button has completely failed.

What you will need:

• 🖥️ Fee Arduino Nano or ESP8266.
• 🔌 Wires "father-mother" (Dupont).
• 🔧 Soldering iron (optional).

Connection diagram:

1. Connect GND Arduino to any ground on the motherboard (for example, to the metal housing of the connector USB).
2. Connect the Arduino digital pin (eg D2) to contact PWR_SW on the motherboard.
3. Upload the click emulation sketch to Arduino:

   void setup() {
   pinMode(2, OUTPUT);
   digitalWrite(2, LOW);
   delay(2000);
   digitalWrite(2, HIGH);
   delay(100);
   digitalWrite(2, LOW);
   }
   void loop() {}

4. Now when power is supplied to the Arduino, the laptop will turn on automatically.

This method requires soldering skills and an understanding of electronics. To simplify things, you can use ready-made solutions like USB Power Button Adapter (sold at AliExpress for ~500–1000 rubles).

7. What to do if nothing helps: diagnostics and repair

If none of the methods work, the problem may be more serious than just a broken button. Here possible reasons and solutions:

Symptom	Possible reason	Solution
The laptop does not respond to contact closures	South bridge or EC controller malfunction	Diagnostics in the service (reflashing or chip replacement required)
The power light is blinking, but the laptop does not turn on	Problems with RAM or video card	Reinstall RAM sticks, check discrete graphics
Laptop turns on but immediately turns off	Short circuit or overheating	Checking thermal paste, removing dust, diagnosing power supply
No response to charger	Power controller malfunction	Replacing DC-jack or repairing power supply circuit

If you are not confident in your skills, it is better to contact a service center. Average cost to repair a power button ASUS:

• 🔧 Button replacement: 1,500–3,000 rubles.
• 🔧 Repair of contacts on the board: 2,000–5,000 rubles.
• 🔧 Diagnostics + BIOS flashing: 3,000–7,000 rubles.

For laptops ASUS ROG or ZenBook with a warranty, repairs can be free of charge (if the breakdown is not the user’s fault). Check the warranty status on the website ASUS support.

FAQ: Frequently asked questions about turning on an ASUS laptop without a power button

Is it possible to turn on an ASUS laptop via USB-Type-C?

Yes, but only if your model supports Power Delivery (PD) and has the function USB-C Alt Mode. For example, ASUS ZenBook 14 UX425 or ROG Zephyrus G14 can be enabled via connection to a docking station or monitor with USB-C PD. However, this only works if the laptop was turned off correctly and not frozen.

Why does the laptop turn on after closing the contacts, but immediately turn off?

This is a typical sign EC controller malfunction (built-in power management microcontroller). Another possibility is a short circuit in the power supply. Try:

1. Disconnect the battery and start the laptop from the mains.
2. Reset BIOS (remove battery CR2032 for 10 minutes).
3. Check the capacitors on the motherboard for swelling.

If the problem remains, diagnostics at the service center is required.

How to turn on ASUS ROG Ally (gaming handheld) without the power button?

For ROG Ally there is a separate method:

1. Connect your device to charger.
2. Press and hold the button Menu (three lines) + Volume Up for 10 seconds.
3. If it doesn't work, connect to your PC via USB-C and use the utility MyASUS for forced activation.

You can also close the contacts of the power button under the back cover (they are located next to the connector USB-C).

Can I use an external battery (power bank) to turn it on?

Theoretically yes, but only if:

• 🔋 Power bank supports PD 20V/5A (most laptops ASUS require exactly this voltage).
• 🔌 You are using the original cable USB-C from a laptop.
• 🔄 The laptop was turned off correctly (not through a forced shutdown).

For models ASUS TUF Gaming or ROG Strix this method often does not work due to non-original chargers being blocked at the BIOS level.

What should I do if, after turning on without a button, the laptop does not see the hard drive?

This may happen due to:

• 🔧 Reset BIOS (settings SATA Mode got lost on IDE instead of AHCI).
• 🔌 Malnutrition (if you turned on the laptop using a non-original charger).
• 💽️ Problems with SSD/HDD contacts (reconnect the drive).

Go to BIOS (F2/Del) and check if the disk is recognized in the partition Boot. If not, try reinstalling it or resetting the BIOS to factory settings.