Professional cellphone repair guide and high quality cellphone repair tools

Nowadays many people are using the iPhone7. Sometimes when we turn on the phone, the white Apple logo will appear. Many people do not know why it happened. Let me give you a detailed explanation of how to solve it. Phone model: iPhone 7 Symptom: Error 4013 is reported when restarting the system in data cable mode Repair : The most common problem on the Phone 7 device is the baseband portion, which is a common problem for iPhone  repair technicians.After 6S, if the baseband can't be identified, device will reboot with the white apple logo and not be able to enter the system. Maybe beginners will think that there is a problem with the Nand chip, no progress bar when restore system. If the baseband part is damaged, the error code can not be reported until 80%. But the iPhone 7 generation basically has a problem with the baseband. The repair process can be divided into the following steps: 1. Use Fluke digital multimeter  to measure if the capacitance is short circuit ...

Although iPhone6s water resistance is very strong, it is not a waterproof phone after all. If you dropped your iPhone in water - be it the bath, sink or long-drop toilets? It may cause a touch screen malfunction. How to repair the iPhone 6S has no touch function after getting into water. With this guide you can repair your iPhone 6s easily. 1. Disassemble the cell phone with professional iPhone 6s opening tools .With the magnifying glass, we can see that the traces of water have been processed by the last repairman. 2. Using Fluke digital multimeter  to measure the grounding resistance of display touch socket, we found that  the 30th pin(PP5V1_TOUCH_VDDH_CONN) power supply to the ground is short circuited, the multimeter value is shown in picture. 3. Based on our previous repair experience, we try to remove the +5.1V filter capacitor (C4003) of the display power to get rid of the fault. 4. Use digital multimeter to measure again, we found that there was no a...

Is there a decline in the efficiency of your smartphones? If yes, your cell phone may be suffering from a variety of faults, some can be solved by simple methods, but some faults you need to identify first before repair, otherwise you will have no way to start. Sometimes phone diagnostic tool can help identify problems, so you can take action to make your smartphone functions back. There 5 symtoms you will diagnose to get to know whether you need to fix your phone. Some faults are easy to do DIY fix while some require a professional phone fix technician. Whatever the symptom you meet, you need to check out them now to get your phone back into proper work! 1.Bad Processor Performance You meet the same symtom in your mobile phone now? The application has slow loading, slow response, and some functions are not working as you want. These phenomena can indicate that there is a problem with the phone processor or iPhone CPU , which may cause the application to malfunction on the en...