iPhone Boot Circuit - iPhone X Logic Board Repair

The boot circuit can be regarded as logic board trigger circuit. To have the phone turned on, working conditions like power supply, clock signal and reset signal are indispensable. What’s more, CPU has to get key components into power-on self-test process and get the bootstrap imported. Since there are so many components involved in the process, reasons for won’t turn on of the phone can also be various. Now, let's walk you through the work-flow of iPhone X boot circuit. For free online course iPhone logic board circuit repair training please check rewa academy.



REWA Academy is a that provides repair technique learning, practical demonstration, and idea-sharing for practitioners in the electronic repair industry. A series and system to learn mobile phone repair. Including foundation course, handwork course, work-flow course, iphone repair case course and cell phone broken screen refurbish course. If you need an online course for cell phone repair training, REWA Academy will be your best choice.
Check it out now!

iPhone 8 Plus Turns On But Black Screen/No Display

iPhone 8 Plus turns on with black screen. What will you start with? For screen issues, the most common solution is to replace with a new display assembly to see whether it’s a screen problem or a board issue. As for black screen issues, we can also start with the boot current. Run boot current measurement first. If the boot current is normal, then we can confirm that the phone is turning on with no display. As for display issues, find the display connector at the very beginning.
Sounds quite simple? Well, follow our repair guide and you can figure it out by yourself.

For more cell phone repair tips and logic board repair cases please go to REWA Blog to get.

Is there any online course for mobile phone repair?

YES, you can find the cell phone repair training course online in REWA Academy. From basic course to professional repair case. You can system learning mobile phone repair. Of course, you can buy the course according to your repair level for month or year.
Course Package Included:

• Foundation course:

Intended for iPhone repair enthusiasts and beginners, this foundation course package covers explanation of iPhone motherboard basic electronic components, frequently used motherboard repair tools and commonly adopted iPhone motherboard repair methods. Take this course and make an important step forward to the repair world

• Handwork course

This handwork course package focus on soldering/desoldering techniques of RC-components, BGA chips, SMD connectors and CPU of different iPhone models, detailed explanation of jumping wires, and techniques for iPhone double-stacked motherboard separation/recombination. Take this course and you will master iPhone motherboard micro-soldering techniques. This is the course that can help you understand the right tools for micro-soldering to avoid further damaging the motherboard, and lay a good foundation for your daily repair work

• Workflow troubleshooting course

This circuit work-flow and troubleshooting course package covers iPhone 6 and iPhone 7. Take this course and you will fully understand the work-flow of different iPhone circuits, figure out possible causes for different issues, and master general troubleshooting process of each circuit. Get trained with this circuit course and learn how to troubleshoot efficiently in your daily repair work.

• Real-life repair case

This real-life repair case course package consists of different repair cases of different iPhone models. Take this course and you will identify different iPhone issues, master troubleshooting processes of these issues and learn how to complete your repair work safely and efficiently.

• Cell phone broken screen refurbishment

This screen refurbishment course package covers refurbishing techniques of iPhone flat/OLED screen, Samsung curved screen, and iPhone back glass. Take this course and you will learn detailed refurbishing steps and master operation guides of common refurbishing equipment. This is the course that can help you complete your refurbishing work efficiently and successfully.
You can choose one month access or one year access. The latter is cost-effective.

Hot Sale Hot Air Gun Rework Station in 2020

Hot air gun rework station is the basic repair tool for the repair shop. It used to soldering/desoldering techniques of RC-components, BGA chips, SMD connectors and CPU of different cell phone models. Including jump wire. It can be said that the hot air gun rework station is necessary for the cell phone repair process. Today, we bring three hot sales hot air gun rework station for you guys.
Hot Air Gun Rework Station - 990AD

This hot air gun rework station can be used by phone repair shops and hobbyists. It offers temperature ranges from 100-480 degrees Celsius with actual temperature displayed on LED screen.

Specifications

● Power supply voltage: 220V AC
● Working power: max 320W
● Turn on power: max 540W
● Air flow: 24L/min
● Temperature range: 100 ° - 480 °
● Dimensions: 187(W)*135(H)*245mm(D)
● Net weight: 4.05KG
● Voltage: 220V
● Plug types: EU plug, UK plug.
Quick 861DW - Hot Air Gun Rework Station

The hot air gun rework station - 861DW is the new lead free rework station, 861DW rework station is used for mobile phone BGA desoldering
repairing, 1000W / 500 °C genuine original hot air rework station, With CH1, CH2, CH3 three working channels.

Specifications

● Power: 1000W
● Temperature adjustable: 100℃ - 500℃
● Maximum Airflow: 120L/min
● Size: 188mm * 245mm * 235mm
● Weight: about 5 KG
● Voltage: 110V, 220V.
● Plug types: US plug, EU plug, UK plug.
Hot Air Rework Station - ST-862D

Specifications

● Power: 1000W (Max)
● Heater: Pluggable
● Temperature Accuracy: ±35℃
● Temperature range: 100℃ ~ 480℃
● Air flow: 120L/min (Max), 30L/min (Min)
● Soldering Tip Type: 3 PCS nozzles, 1 PCS convertible nozzles.
● Working Condition: Temperature 0℃~40℃ Humidity <80%
● Storage Condition: Temperature -20℃~80℃ Humidity <80%
● Size: 208*175*150mm (L*W*H)
Which one would you prefer? Left your comment below.