With the popularity of using Samsung smartphones nowadays, for cellphone repairman, there are many repair problems with curved screens. Compared with the straight screens with iPhone series, it is more difficult to repair. Maybe many repairmen have no idea to fix the edge screens of Samsung so they cannot provide a better repair service to their customers right now.
However, nothing is impossible; we are happy to give you a surprise here today. That is we would like to share how easy to repair Samsung edge screens and we would use Samsung Galaxy S9 as an example. You just need to follow our steps. Even though you are a green one, no problem, just keep looking forward and you will get some useful repair information that makes you strengthen your cellphone repair skills.
Now let’s begin the travel of repairing the broken screen of Samsung Galaxy S9. Before the repair, we need to prepare the repair tools as below:
Our product RMB-2 laminating machine, the frozen machine, the specialized molds for Samsung Galaxy S9, blue silicone mat, white oil, dustless clothe, a new glass, a new OCA film, blade, plastic pry piece and the broken edge screens of S9.
Cracked Screen Testing
The first thing we should do is test the display and the touch functionality of the screen and we should make sure they both work well.
For this process, we can use the frozen machine to freeze the screen without 2 minutes. And then use the blade to open a gap from the top of the screen so that the plastic pry piece can insert and separate the glass under the lower temperature.
Here we would like to give you some warm tips. One is you should wear protective gloves to protect your hands under the lower temperature, the another is please be more careful so as not to damage the LCD screen during the process of the separation.
After the separation of the glass, the next step is to remove the glue. Firstly, let us heat the screen under 80℃ with the heated platform. Then remove the glue with the degumming machine when the screen warms back. Once done, clean the screen with white oil and test the display and the touch again.
For this part, we should remove four little rubber stoppers in corners with tweezers at first. Then use the frozen machine to freeze the screen again. At this time, the screen should be frozen without 5 minutes. After that, we use the plastic pry piece to remove the frame under the low temperature.
Here also some warm tips for you. That is you must be very careful when you put out four little rubber stoppers and you should make sure the LCD screen is not be damaged.
Once the glass separation is done, we can continue to do next step-OCA laminating. For this part, we need to laminate the OCA to the glass with the S9 specialized molds and the RMB-2 laminating machine. Select the mode of OCA laminating when we use the machine, the time of vacuum should be set up to 40s and the laminate time is 40s. Once the OCA lamination is finished, we need to check whether there is any bubble on the affixed glass with the OCA or not. Usually, there will not have a bubble inside the LCD screen with this laminating machine. Of course, if some bubbles on the screen, you also can put it into the bubble remover for defoaming.
Here are some warm tips for you. One is we should align the located position of the S9 special molds and the cellphone receiver location should be same with the located position of the glass mold during this whole process, the other is clean the dust on the blue mat or the glass. Besides, the smooth side of the blue mat should face up on the mold in this process.
For this part, we need to laminate the glass to the LCD screen with the S9 special molds and the RMB-2 laminating machine too. Select the mode of LCD laminating when we use the machine, the time of vacuum should be the 40s, and the laminate time is 40s. Once the LCD lamination is finished, we need to check whether there is any bubble on the screen or not. If yes, we put the screen into the bubble remover for defoaming. After the defoaming, we can see that screens look perfect without any bubbles here.
Here also some warm tips for you. One is we should align the located position of the S9 special molds, and the cellphone receiver location should be same with the located position of the glass mold during the whole process, the other is clean the dust on the blue mat or the glass. Moreover, the flex cable side with the blue mat should face up on the mold and you should put the flex cable outside the molds.
Repair Screen Testing
This is the final step for the total repair job. We need to test the repaired screen display performance and the touch functionality and we should make sure they both work well.
That is all and the job is finished perfectly. Hope this repair tutorial is helpful for you to repair the broken screens of S9. May you can find out some repair solution to solve the problems you have met on your cellphone repair experiences.
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