iPhone 7 Can’t Boot Up with Current Value 200mA

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 with power supply machine. It shows 200mA, which is much higher than the normal value.   Trouble Shooting Part of the circuit is shorted will […]

iPhone 7 Weak WIFI Signal Issue

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 failure of external accessories, we used a tweezers as an antenna to connect with WIFI antenna buckle (JUAT_RF), but the WIFI signal was still the […]

iPhone 7 No Sim Card Issue Repair

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.  Trouble Shooting Normally, most iPhone 7 No Sim Card Issue was caused by the detective pin on the SIM card reader, and sometimes it might be […]

iPhone 7 No Backlight But Display Can Work

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 are 3 situations can cause this kind of issue. 1. Related pins on display connector J4502 was corroded or dirty things on the        pin; 2. […]

iPhone 7 Won’t Turn On With Large Current

iPhone 7 Won’t Turn On With Large Current Malfunction Phenomenon iPhone 7 won’t turn on, very large current once we connected with DC power machine. Trouble Shooting Large current means somewhere is shorted, because once the motherboard was connected with DC power machine, current jumps to very high value, we can conclude that the short […]

iPhone 7 System Stuck with Voice Memo Can not Work

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 not work with the red icon on the interface is grayed out, also there is no sound when playing the ringtone.   Trouble Shooting Ringtone […]

Step-by-Step Guide to Small Parts Installation on Samsung Front Bezel

For many DIY enthusiasts, the thrill of disassembling and repairing cell phones goes beyond just replacing screens or malfunctioning components like ear speakers and cameras. But one often-overlooked aspect of these repairs is restoring the small parts to their original condition. Ensuring that these components are reinstalled correctly is crucial for maintaining the device’s functionality […]