It could be a bad screen or perhaps something went wrong during the repair. Obviously, you should take a closer look. As a repair shop, you probably have other screens so I would try one of those.
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It could be a bad screen or perhaps something went wrong during the repair. Obviously, you should take a closer look to see if any of the flexes are damaged or if any components were damaged or dislodged near the relevant connectors.
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As a repair shop, you probably have other screens so I would try one of those first. If you still have the customers original screen and it is functional, try that one too.
It could be a bad screen or perhaps something went wrong during the repair. Obviously, you should take a closer look. As a repair shop, you probably have other screens so I would try one of those.