Skip to main content

6 steps to fix iPhone 6 Plus shows black screen after power on

We got a iPhone 6 Plus from our customer, the problem of this iPhone is shows black screen after power on, and this problem has been repair, but no effect.  When we got the iPhone, we can see that it has been dropped and the display screen was broken. Now, Vip Pro Shop Team will take 6 steps to solve this problem.

1. Disassemble the iPhone and the power short-circuit current is more than 700 mA, observe the motherboard under the stereo microscope. As shown in picture 7-6-1 and 7-6-2.




2. Backlight IC is placed directly on the top, we also find that the screw column is broken, there must be a broken line. After the measurement of power supply, it shows PP1.8V, PP1.8_SDRAM are short circuit. 1.8V power supply connected to the original components as shown in picture 7-6-3.


3. Decisively take off the black touch welding on the 5 large chips and some capacitors, 1.8V short-circuit is excluded. Check the PP1.8_SDRAM power supply, and the original components are shown in picture 7-6-4 and 7-6-5.



4. There are 6 chips in this power supply, a little bit of trouble to take them off, so direct burning the device. When the current is adjusted higer slowly, it is found that the power IC is heated and the short circuit fault is removed after taking off. Switch on the power IC and boot, the current 0mA--60mA jump back and forth, this situation is mostly CPU did not identify the upper layer caused by, is the upper blowing empty?

5. The screws column is damaged, blow the screws, the 6P right screw has a 12C bus wires, and if the 12C is short-circuit, it will cause the upper layer cannot be identified. Scraping the screw column and finding a broken one, so we solder with jumper wire. As shown in picture 7-6-6.


6. After the wire is repaired, the current jumps normally. Replace the chip directly, soldering jumper on black touch M1 pin. As shown in picture 7-6-7.



Finally, handle them all, the iPhone 6 plus can be turned on normally. As shown in picture 7-6-8.



Labels:

Comments

Post a Comment

Popular posts from this blog

User Manual: JC V1 Programmer to fix iPhone light sensor/vibrator

As we know, the light sensor and vibrator is very important for iPhone screen. If you want to replace the iPhone screen, you also need to transfer the original screen data to the new iPhone screen(iPhone 8 to iPhone Xs Max),so you can make sure the new iPhone screen will work fine. Here is a  JC V1 programmer  to fix iPhone light sensor and vibrator problem (for iPhone 7- iPhone Xs Max), it also can repair iPhone baseband eeprom IC or iPhone logic eeprom IC problem. The JC V1 Programmer comes with 24-inch HD display screen, three-color LED indicator light, two small connecting seats (for connecting function panel) , two buttons and one function panel (including light sensor/touch connector, baseband function connector, vibration connector) It support 2 languages (Chinese/English) and three lines of code (read/write/burn/save), the function panel can be changed, the software can automatically update What’s the functions? - Repair iPhone Light sensor/ true ...
1 comment
Read more

Essential tools for a phone repair technician Everyday Use

Must-Have tools for a phone repair technician include precision screwdrivers, spudgers, tweezers, suction cups, and heat guns or hair dryers. Additionally, anti-static mats and wrist straps are crucial for protecting sensitive electronics. Other helpful tools include a multimeter, soldering iron, magnifying lamp or microscope, and various cleaning supplies.  Whether you're a DIY enthusiast or a professional technician, having the right tools is crucial for successful phone repair. Here's a breakdown of common phone repair tools, categorized for clarity: I. Essential Opening and Disassembly Tools: Precision Screwdrivers : These are the most fundamental tools. Phones use tiny screws of various types (Phillips, Pentalobe, Torx, Flathead), so a comprehensive set with magnetic tips is highly recommended to avoid stripping screws and losing tiny parts. Spudgers ( Pry Tools ): Made of plastic or nylon, these non-conductive tools are invaluable for safely prying open phone casings...
Post a Comment
Read more

How to install K-TAG 7.003 KTM100 K-Suite 2.13 software

China Clone KTAG 7.003 firmware has newly launched, New2.13 KTM100 software is the replacement of 2.13 K-Suite which brings brand-new interface and makes easier operation. Here, vipprogrammer.com share the installation guide of K-TAG 7.003 K-Suite 2.13 software, this step-by-step instruction guide will help you. Software: KTM100 V2.13 (better than Ksuite software) Firmware: V7.003 Language:  English, Italian, Portuguese NOTE: KTM100 software can only be work with KTAG firmware V7.003 New KATG KTM100 V2.13 Firmware 7.003 new added feature: 1) New add BMW F chassis petrol and Mercedes-Benz W222 models 2) Software is much easier to use and is very stable. After you connect the car, just choose the large type, KTM100 will recognize the ECU detailed type via ID automatically. Disable both local network and wireless connection (Very important!!!) 1) Install KTAG KTM100 V2.13 setup Open KTM100 setup in the CD software on My computer Open KTM100 file, then open KTM100 English file...
Post a Comment
Read more