2015年6月15日星期一

What are the necessary repair tools if you want to build a micro soldering table?

What are the necessary repair tools if you want to build a micro soldering table?

Considering more and more cell phones need to use, it is a nice choice to do repair business, low investment and high profit. Except learning the repair technology, no doubt the repair tools is indispensable. So what is the necessary repair tools if you want to build a micro soldering table?

The first most used tool is hot air gun. When removing or installing small components to large integrated circuits, hot air gun are used, and different situations require different temperature. It is a major point of cell phone repair technology to use hot air gun, is the key to repair mobile.


Then it is soldering station. It mainly used for welding of various components, and so on, because cell phone usually repair components of small size, high integration, circuit, and small pad, solder selection of iron requirements is relatively high, so should better choose good quality, the price is usually around 40usd.


When cell phone repairing, usually replacing components on the circuit board, soldering ironsis needed to use, and it demands a high requirements.


Power supplier is also indispensable. In order to test, we need to prepare a regulated power supply, the output voltage can be adjusted also. What`s more it is important to be with short-circuit protection and current-limiting control, price is around 25~42usd.


Multimeter cannot be forgotten whatever, which major to test voltage of each part key points, line breaking, and judge the quality of components,another most used tools during repair


Reballing Board, solder paste, scrapers, at least one unit needed, used when welding.



Soldering flux and motherboard fixture need be used all the time.



Above is the need to open a cell phone repair shop equipment, a total investment of probably around 300~450usd. Other requirement is depend on different people.

2015年5月6日星期三

What Version Is Your Samsung Galaxy S3?


Samsung Compatible Models All Over the World




What version of Samsung Galaxy S3, S4 and Note 2 etc LCD sreen do you need? For example, S4 have I9500,I9505 etc, the lcd screen is universal of same model, just the frame and flex are different. In fact, each cellphone has detail model on display. We have sold many versions, and collect versions in below table.What version do you meet most? 


2015年4月21日星期二

How to save cellphone from water damaged?



 
How to save cellphone from water damaged?

 

Nowadays, cellphone is one part of ourselves, how to protect our cellphone. When your smartphone is water damaged, what would you do?

Cellphone cannot start up, call with noise, display not normal, even it cannot repair well, since the Circuit Board corrode too much.

 

So, the first step is to take out the battery to avoid long time corrosion. (Should NOT start up the cellphone, otherwise, the inner circuit board will short circuit, even burn out.)

            
 

If it meets clear water, you can take it easy, maybe the water make some inner parts bad welding. There are two steps need to do now.

A. Clear the cellphone by Absolute alcohol ----alcohol volatile fast together with water on phone.

B. Dry the circuit board by Air Gun carefully, BUT NOT Hair dryer.

 

Air gun:                                                                             Hair Dryer

                   

Normally almost cellphone will work well after above solutions. If not, the inner parts may get rusty, have to double weld!

 

But if dirty/salty water gets in, please follow below steps.

Clear cellphone right away, dirty water will corrode circuit board, the worse the longer invasion. Use soft hair brush to clean dirty in the phone, ultrasonic cleaning apparatus is recommended under serious situation.

And then, dry by air gun, double weld the inner parts.

 

If cellphone still does not work, e.g. cannot start up, have to double check out, the circuit board broken or spare parts short circuit. During trouble shooting, usually it caused by Power supply IC issue. It will go well after change power supply IC. You need this Tin plate plant and Soldering paste.

 

 

PS: To avoid risks, the best way is to protect our cellphone with waterproof case.

  

 

2015年4月16日星期四

How to refurbish LCD assembly?

OCA glue or UV glue? Different operations

How to refurbish LCD assembly?
Firstly, take the broken glass from screen.
Secondly, remove the glue on lcd. (Use ethyl alcohol, banana oil or scraper knife to take it off.)
Thirdly, install new glass on LCD.

There are 2 options for your reference.
Option 1: OCA Glueone piece for one model)
Option 2: UV Glue (liquid)


Which option do you prefer?

A.    If use OCA GLUE, please follow up 2 steps
Step (1) paste the OCA glue on LCD screen;
Step (2) install glass on LCD screen.
Machines required: Film Laminating machine, vacuum pump, Pressure screen machine & Removing bubble machine, vacuum pump and removing bubble machine are one unit.
These machines are huge and expensive, but do a perfect job and could make a nice screen without any air bubble!
 Film laminating machine:


Vacuum pump:

Pressure screen machine & Removing bubble machine:

B.    If use UV GLUE to install.
UV light needed.
Drop some UV glue on the center of the lcd, then put the glass on LCD, put the LCD assembly into UV light (as below image), so that the UV glue make efforts.



2015年4月8日星期三

How to strengthen your cellphone singal?

                                   How to strengthen your cellphone singal?

What will u do if ur cellphone without singal?be crazy?I wonder many people have met such problem.
There are several reasons effect our cellphone singal,perhaps our cellphone itself problem,or some external factors.But how can we to strengthen the signal?Here share some tips to improve iPhone singal.:)
First step,
1.    In setup app,click “Carrier”option
Step 2,put off”automatic”function,in Carriers page



















Step 3,
·         It will show network carriers,consumer just need to choose corresponding carrier,like T-Mobile.


2015年3月30日星期一

SUNRISE Marketing News(20150330)

SUNRISE Marketing News(20150330)

1.LCD+TOUCH+FRAME
iPhone 4S new package hot to ship

2.TOUCH
Lenovo A3300 Original New, Touch 

ZTE V830 Original New Black Touch

3.Lcd+TOUCH+FRAME
MOTO G,XT1032/XT1033

4.Samsung s6 iin ear earphone



5. iPhone 6 Plus 5.5inch original New, very short of stock


6. Frosted glass  
For iPhone 5,iPhone 6, iPhone 6 Plus,
0.33mm, 
MOQ #30PCS/Model


2015年2月11日星期三

How to test broken iPhone screen?

How to test broken iPhone screen?

SUNRISE have a new project on Broken iPhone &Samsung 
Screen

Part 1: Broken photo
5 days ago, we received many broken screen




We tested them, below show up some broken lcd case for your reference.








Part 2: Testing video show

First, iphone 5s testing, show you the magic iphone5S, screen turn into purple, alright, this iphone 5s glass and lcd both broken

For video please check below for more detail:
web.: https://www.youtube.com/watch?v=pPuUdCUZS1k&feature=youtu.be

Final : 
Thank you so much to our QC. Dep.