Connect an external monitor (TV?) to the laptop's HDMI port and check if the display on it is OK. Press the F10 key (or maybe Fn + F10) to toggle the display between the laptop screen, the external monitor or both on together.
if the external display is OK there may be a problem with either the laptop's eDP (video) cable/cable connection or the LCD panel in the laptop.
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Here's the [https://download.lenovo.com/consumer/mobiles_pub/v145_14_15ast_hmm_201812.pdf|hardware maintenance maual] for the laptop.
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Here's the [link|https://download.lenovo.com/consumer/mobiles_pub/v145_14_15ast_hmm_201812.pdf|hardware maintenance manual] for the laptop.
Go to p.50 to view the steps to remove the LCD panel. This will allow you to check if the eDP cable connection onthe motherboard is OK, if the cable is OK and not damaged where it passes through the hinge to get to the lid and also to replace the LCD panel if that is the problem.
The part numbers for the 8 different LCD panels that can be used in the laptop model can be found on p.62 - see Item #3. Usually the part number can be found on the back of the LCD panel if you wish to verify which one is used in your laptop.
Search online using the appropriate to your laptop ''part number only'' to find suppliers that suit you best.
If the eDP cable is damaged, its part number is Item #4 on p.62 i.e. 5C10R34877
Hi @alwynhenry
Connect an external monitor (TV?) to the laptop's HDMI port and check if the display on it is OK. Press the F10 key (or maybe Fn + F10) to toggle the display between the laptop screen, the external monitor or both on together.
if the external display is OK there may be a problem with either the laptop's eDP (video) cable/cable connection or the LCD panel in the laptop.
Here's the [https://download.lenovo.com/consumer/mobiles_pub/v145_14_15ast_hmm_201812.pdf|hardware maintenance maual] for the laptop.
Go to p.50 to view the steps to remove the LCD panel. This will allow you to check if the eDP cable connection onthe motherboard is OK, if the cable is OK and not damaged where it passes through the hinge to get to the lid and also to replace the LCD panel if that is the problem.
The part numbers for the 8 different LCD panels that can be used in the laptop model can be found on p.62 - see Item #3. Usually the part number can be found on the back of the LCD panel if you wish to verify which one is used in your laptop.
Search online using the appropriate to your laptop ''part number only'' to find suppliers that suit you best.
If the eDP cable is damaged, its part number is Item #4 on p.62 i.e. 5C10R34877