From your description and photo there's a high possibility that the LCD panel electronic board might be bad. If the video is normal on an external monitor the problem could be related to two main parts: the video (LVDS) cable or the LCD panel. Habitually if the problem appears when applying pressure to the LCD display then the LCD panel is the culprit. In this situation I would first try a known working LVDS cable (or check the connections to the logic board and LCD panel) before replacing the LCD just in case cause there's also a possibility of a faulty cable.
1- connect the MBP to an external monitor to check the graphic card. Got to be sure the logic board is OK.
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2- bring the MBP to an Apple Store and show the problem to a genious tech. They should have expertise to detect the faulty part.
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2- bring the MBP to an Apple Store and show the problem to a genius tech. They should have expertise to detect the faulty part.
From your description and photo there's a high possibility that the LCD panel electronic board might be bad. If the video is normal on an external monitor the problem could be related to two main parts: the video (LVDS) cable or the LCD panel. Habitually if the problem appears when applying pressure to the LCD display then the LCD panel is the culprit. In this situation I would first try a known working LVDS cable (or check the connections to the logic board and LCD panel) before replacing the LCD just in case cause there's also a possibility of a faulty cable.
1- connect the MBP to an external monitor to check the graphic card. Got to be sure the logic board is OK.
2- bring the MBP to an Apple Store and show the problem to a genious tech. They should have expertise to detect the faulty part.