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Malfunction Phenomenon Receive an iPhone 7 no touch. Besides, the phone displays vertical lines on the screen. Trouble Shooting There are 3 main reasons that can cause the vertical lines issue.

Malfunction Phenomenon iPhone 7 Boot Loop and No Connection With Computer Trouble Shooting Because the phone can’t be connected to the computer, we can conclude that the problem might be

Malfunction Phenomenon iPhone 7 Lower Loudspeaker Does Not Work If we covered the top loudspeaker, there is no sound output from the phone when we play the ringtone. Trouble Shooting

Malfunction Phenomenon iPhone 7 Turns On With Black Screen, but the boot current was normal. Trouble Shooting First, check the appearance of the motherboard, there is no trace of deformation

Malfunction Phenomenon Try to press the power button to power on the phone, but the iPhone 7 Not Turn On with A Large Current. Trouble Shooting We checked the motherboard, there

Malfunction Phenomenon iPhone 7 Won’t Turn On With A Large Current, once the motherboard gets connected with the DC power supply. Trouble Shooting Large current means somewhere is shorted. Because

iPhone 7 Home Button Not Working Malfunction Phenomenon Press the power button and power on the phone, the home button can not work and it’s burning hot. Trouble Shooting We

iPhone 7 Can’t Boot Up with Current Value 200mA Malfunction Phenomenon The phone can’ t boot up after charging with car charging system. We measure the boot current by connecting

Malfunction Phenomenon iPhone 7 Weak WIFI Signal Issue, this iPhone 7 just can receive several hotspots signal, less than the normal phone.   Trouble Shooting  In order to exclude possible

iPhone 7 System Stuck with Voice Memo Can not Work   Malfunction Phenomenon iPhone 7 system stuck, when clicking on an APP icon, the APP responds slowly. Voice memo can

Malfunction Phenomenon Power on the phone and check, SIM card cannot be recognized and no service. Restart the phone and test again, the SIM card still could not be detected. 

iPhone 7 No Backlight But Display Can Work Malfunction Phenomenon Press the power button and boot, we can see a faint apple logo on the screen. Trouble Shooting Normally, there