Question Lenovo IdeaPad S145s is not powering on ?

[Dede254]

My laptop is not switching on...The fan temporarily spins and goes off....The HDD
light goes on and the charging light is on with a white light...When I long press the power button the LED on the charging port flashes after 10 secs. I have removed the CMOS battery...the laptop battery, RAM...But it won't power on.

This problem started when I noticed that the Bluetooth is not working. I switched it off and now it doesn't work

 

[Lutfij]

Welcome to the forums, newcomer!

This problem started when I noticed that the Bluetooth is not working. I switched it off and now it doesn't work
Remove the Wireless module from your laptop and see if you can power up the laptop.

Ideally you're advised to discharge the laptop by;
Disconnecting the laptop from the wall, then disassemble the laptop, remove the internal battery, then remove the stick(s) of ram. Press and hold down the power button for 30 secs to drain any residual power. Use an eraser on the gold contacts of the ram sticks to clean them, remove eraser lint then reseat the ram(s). If you have two sticks of ram, work with one stick first and attempt a power with the external power source, only.

If the laptop has ram soldered onto the board, you don't need to reseat the stick of ram(leaving it out).

Chances are that the laptop's motherboard might've developed a short or your BIOS for the laptop is corrupt.

Moved thread from Motherboards section to Laptop Tech Support section.

 

[Dede254]

I did this... There is an onboard RAM and physical one....I remove the RAM and the Power Led is still flashing after 10 secs. I noticed the CPU heatsink paste has dried up so I'm looking for new paste and I will update here