Hello, my laptop will not turn on. It initially randomly turned off while watching Youtube with the power light solid white then rapidly blinking after a few minutes. After a couple of hours with this, I attempted to power drain the laptop by disconnecting the battery and holding down the power button. After I did this and reconnected the power the light by the charging port turned pink and my issue is not solved. I have an Ideapad s340, serial number unknown as the sticker is missing and I cannot access bios or windows. Screen 14 inches across with touchscreen.

Welcome to the Community Forums.

Hi @racerdg.

Apologies to read that you are having issues with the machine.

Here are some steps that I can advise for you to identify what could be the possible issue on your machine.

Just a heads up, you will perform the same steps you have done, but this time you will identify the issue specifically.

The goal of these steps is to identify the issue.

Perform a static discharge/power cycle
- Remove all cables connected to the device (power cables, hdmi, external mouse, external keyboard, flashdrives, etc.)
- Be sure device is switched off / powered off
- Press and hold down the power button for 60 seconds
- When done, re-attach all cables
- Attach the  ac adapter and let the unit charge for about couple of minutes
- When done, power up the machine as usual either through power button or Novo button: https://support.lenovo.com/ph/en/solutions/ht062552-introduction-to-novo-button-ideapad  

Powering up the machine through the Novo button will boot to the Novo menu, it will still have to power up the laptop alternatively.

See if the machine entered no p.o.s.t., no display, or no power.

It would be a no power issue if the machine showed no signs of power light indicator at all. Either from the power button or from nearby port lights and there is no sign of fan running.

It is also a no power issue if the machine showed active power light indicators once power button is pressed but died eventually. The machine can no longer hold power.

On the other hand, it would be a no p.o.s.t. issue if the machine has power light indicators active, but no signs of fan spinning and did not proceed on booting to windows log in. If this ever happened, I suggest tapping on the capslock/numlock key for any possible light that would respond. If the capslock/numlock light key is unresponsive after consecutive taps, it means that the unit had problem performing a p.o.s.t. process.

Another sign of no p.o.s.t. can show that the machine has power light indicators, has an active spinning fan, and has active capslock lights but still does not boot to windows. If this is the case, tap on the capslock light key if this particular key would respond (on and off) on any taps. If it does not respond and stayed solid, it means it has an internal hardware issue with the unit.

This is a sign of possible internal hardware failure. The unit is no longer able to recognize external hardware command from the keyboard.

Lastly, if your machine shows power light indicators, has active fans, and the capslock key is responsive on taps, try connecting the device to an external monitor. Observe if the unit will extend any display to the monitor from the laptop.

What turned out to be the issue with your machine?

Was there an issue with how the machine behaves other than the mentioned signs above?

Feel free to let us know.

Regards.
Dex

No p.o.s.t. is most likely. When I hold down the power button this happens:

While holding the power button the pink light goes off. After 10 seconds, the keyboard backlight flashes and fan comes on. After 15 more seconds the fan goes off. Nothings happens after a minute of holding. Screen also never comes on. Caps lock unresponsive as well.

Hi,

Thanks for the response.

Sorry to know it already went into no post, unfortunately this is an issue that goes beyond our control, it that only means the only potential way to have this resolved is to check for board integrity. I suggest that it would be best for you to report this to the technical support team in your region and inform them about the steps you have performed here. They will also discuss the possible resolutions for the machine. Other than that, you are also free to check or consult with any nearby service facility in your area so a tech can offer service if available.

Regards.
Dex