Compass doesn't work after replacing display assembly
I dropped my iPhone 4 and cracked the screen, so I followed the repair guide to replace the display assembly.
After replacing, all the functions are doing well, but the compass is not working. I open the compass app, in the calibrate screen, the red dot does not roll around, and then entering the compass screen, the compass does not spin around.
Did I touch or miss or broke something while repair the display assembly?
Is this a good question?