Professional cellphone repair guide and high quality cellphone repair tools

If your iPhone 6 plus home button is not working or has become unresponsive, we have some possible fixes to share with you. We have come across that some users do seem to have persistent issues with the home button on iPhone 6 plus.  Vipprog engineers are bringing you a full set of repair guides to solve iphone 6 plus home button not working.  FIX PROCESSING: 1. After teardown iPhone, remove motherboard  and supply power to motherboard with DC power .  It has no response after using tweezers to touch the power on pin. Use multimeter  to measure the power on pin.   It presents 1.8v voltage. Measure the diode data of each power supply pin, we find PP1V8_SDRAM, PP1V2 and P1V2_SDRAM are short circuit. According to circuit diagram , find the components that use these voltages and then remove them one by one to exclude short circuit. When remove power chip, we find the diode data of PP1V2 becomes normal. 2. We can continue to exclude other short circuits. ...

The present situation is iPhone 6P Wi-Fi cannot be open and the Wi-Fi address in “about iPhone” displays “unknown”. You must be confused, because there are many reasons to result this problem. Don't worry, Vipprog can find the reason for you and solve the problem. Firstly, boot test phone and we can found that there is not any icon in “settings”, as shown in picture 1-31 Secondly, disassemble the iPhone, we found the Wi-Fi chip  has been replaced and there are enameled wires under solder pad. Therefore, the improper enameled wires and unqualified working condition may cause the trouble. Remove the Wi-Fi chip directly and measure the diode data of each pin on solder pad. Comparing with normal motherboard , the measured data is normal. After removing Wi-Fi, the measured diode data of PCIE bus is infinite. We can only measure whether the circuit is connected between PCIE bus (as shown in picture 1-32) and coupling circuit C0703, C0704, C0705, C0706, C0720, C0721 (as shown in pic...

When using iphone, you may face various issues, such as screen problem are the most annoying ones. Sometimes the blue screen will perplex us, it is very not convenient for your life and work. So you should fix quickly. You can follow this article to check and fix your iphone. Issue: IPhone 5S displays blue screen and reboots automatically. It cannot be rooted. Fix process: 1. IPhone 5s reboots after displaying a blue screen because PCB under screw  holes disconnects of because of U6 chip .  2. Use multimeter  to measure the diode data of the chip signal and it is normal, so is the voltage. Therefore, the chip is damaged. 3. Replace a new U16X chip  and trouble is removed. It is a short guide of iphone 5s blue screen, If you need re-programming the U6 chip, MJ ACT PLUS tool  is useful tool, MJ ACT PLUS baseband eeprom ic test fixture, stay-in-place Baseband eeprom IC on iphone motherboard, Support 4S, 5. 5C/5S, 6, 6P, 6S, 6SP all iphone model CH...

This is a demo video of phone touch circuit explanation from http://www.vipprogrammer.com iphone Bare empty logic board motherboard for 6S 6SP 7 7P 5SE PCB Circuit Board Original Logic Bare Test Board for 4/4S/5C/5/5S/6/6P/6S/6SP 5SE, 7, 7 plus, iphone 4S 5S 6S 7 7P empty logic board motherboard, iphone empty logic board motherboard for iPhone 7 / 7P / 6S / 6SP / 5S / 5 / 5C / 4S /4 PCB Circuit Board iPhone 4 4S 5 5C 5S 6 6S 6Plus 6S Plus 7 7Plus 5SE Motherboard Main Logical Bare Board, all series iphone PCB Circuit Board Repair and measure tools 1: When restore the iphone, the screen light on, show "progress bar", 53 error, the CPU is good status 2: if it is black screen, perhaps, it is the lower error on CPU. 3: if the screen light on, show RAM error, it is the upper error on the CPU if you need more information or the video demo, pls contact with us. See Us: http://www.vipprogrammer.com/ Email: Myvipprogrammer@gmail.com Like US: https://www.facebook.com/obd2m...

When you come across your iphone 6 plus no service suddenly after dropping, you should take it to fix, but sometimes you will find that has not been repaired well. what reason it is? And how to do. This post highlights the most effective solutions and workarounds used to address an issue on the Apple iPhone 6 plus, in which the iPhone shows a No Service or Searching for Network error in the status bar and can't connect to a cellular network. So I will recommend you some solutions to fix. Issue: IPhone 6 Plus has no service after dropped, and has not been repaired well for several times. It does not show IMEI when dial *#06#. Solution: 1. There are several reasons for no service.  First, there is no baseband (no IMEI and modem firmware). Second, iPhone does not read the SIM card  (no ICCID).  Third, there are some problems in RF circuit. If dropped iPhones displays no service, components pseudo soldering or open circuit may cause the problem. Therefore, we can c...

This article is about how to fix iphone 6s, when your iphone 6s new SIM card no service. You will use some iphone repair tools to fix , for your quick and correct use vipprogrammer products, carefully read this guide and prudent to do. Fix Process: 1. There are IMEI, modem firmware and ICCID in “about iPhone”, but there is not IMEI when dialing *#06#. Checking PCB circuit diagram bitmap  we find the testing point of RFFE1 bus is PP3170_RF and PP3171_RF. The testing point is shown in picture and the material object is shown in picture,too. 2. After measuring the diode data of RFFE1 bus, we find the data of PP3171_RF is too large. Teardown baseband CPU  to measure the diode data of pin U1 and the data is infinite. Scratch a circuit near pin U1 and connect it to pin U1 with a jump wire . After placing the wire, measure the diode data of U1. You will find the data is normal. 3. Doing BGA Reballing  on baseband CPU, and weld baseband CPU to PCB board. 4. Pow...