⟐ Answered June 29, 2026 at 10:48 MST

⟐ Answered June 05, 2026 at 7:56 MST

Initially I changed the screen cable, because my screen was changing colors and making vertical shades with freezing picture, especially when the lid was moving.

Initially the problem seems to had be solved ,but after 5 min the problems return, so I opened the screen and begun probing on the CON for voltages and any defect cups and at that time the backlight and the picture was on, with the defects showing..

Now it's only a black screen.(with working hdmi output to TV)

The question is how do I know that I haven't done anything wrong with the motherboard, while I was probing the screen con board ? The 3.3V and other voltages are coming from the motherboard though the screen cable or from the lcd controller board?

Where could I have to start searching ?

I Appreciate your time

⟐ Answer accepted November 04, 2025 at 5:14 MST

Why is my laptop power button not working? After shutting down, I tried to turn on my laptop by pushing the power button and it does not turn on. Try to hold 5 seconds but still does not turn on. Then I tried unplugging the laptop, took out the battery and connected only the charger and it worked. Laptop is on. I tried to feel and push the power button, I can feel the button clicking but not responding. Is there any solution before I replace whole the keyboard?

many thanks

⟐ Answer deleted June 06, 2022 at 3:13 MST

⟐ Answer edited November 28, 2018 at 11:58 MST

My question is would be how much it would cost to repair by a technician in the UK (I have done soldering work but not on SMD level). If it's too expensive I may try to do it myself and buy some of my own tools as I guess it's a useful skill. Here in the UK the laptop is worth around 150 so I doubt it would be cost effective to repair a usb port by a shop.

My concern is that is it just the USB port. The centre plastic piece is a bit looser than other ports but the pins look fine. However, the metal crease (that you see in cheaper usb C cables) has actually broken apart in the port.

Lastly, is the laptop meant to charge from both usb C ports? The other one works fine and provides fast charging for my phone but it won't charge the laptop. This made me wonder if the charge chip was broken as my brother's Lenovo L380 charged with both usb C ports.

Any help will be greatly appreciated. I will practice my soldering on some old micro usb connectors and I know I need to order a hot air station to repair this connector.

⟐ Commented May 13, 2023 at 18:13 MST

⟐ Answered August 26, 2025 at 4:01 MST

⟐ Commented March 02, 2025 at 0:55 MST

asking for the reseller they all forgotten for all the password.

⟐ Answer edited October 18, 2022 at 0:16 MST

⟐ Answer edited April 18, 2026 at 10:34 MST

⟐ Answered March 30, 2026 at 1:25 MST

⟐ Commented February 25, 2025 at 9:03 MST

I was wondering which exact screws to use, as to not breaking anything or risk not ever getting them out again.

⟐ Answer accepted March 17, 2024 at 7:26 MST

⟐ Commented February 01, 2024 at 21:10 MST

⟐ Answered August 22, 2023 at 22:05 MST

Tell me how to repair

⟐ Edited January 27, 2025 at 10:01 MST

⟐ Answered September 16, 2022 at 22:08 MST

⟐ Commented March 07, 2022 at 9:50 MST

⟐ Commented July 20, 2025 at 12:49 MST

⟐ Edited by author September 18, 2024 at 10:14 MST