Samsung Galaxy J7 Prime Not Display

Guests brought j7prime tree, guests said they were suddenly using the display I uploaded the rom again and removed the main board to see if the main showed no signs of rust. Sentence off double coil in the picture below ok, share with you to earn rice

After you turn off some coils but still not displayed, you remove the coil in the picture. If losing wifi, replace coil.

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Good luck!