Touch screens have seriously expanded the functionality of mobile devices, but with the beginning of their use, the technology had to be treated more carefully. Almost any drop from a height exceeding 1 m can damage the main glass of the phone or even the matrix. Tempered glass is used to protect the screen, and the phone itself is often worn in a case.
In the current article, we will examine whether it is possible to replace glass on a smartphone and how to do it depending on the design of the display. We also consider the process of removing and gluing a protective glass, which will protect against the occurrence of more serious problems.
Smartphone display elements
Before studying the direct instructions, you should understand what modern displays used in most smartphones consist of. Their components include:
Matrix. a panel of liquid crystal or LED type, which contains an array of pixels that form the final image. A stainless steel case is located on the back side, and the front part is covered with thin glass. The design includes a loop connecting the screen to the board of the mobile device.
Touchscreen. a panel that is placed on top of the matrix and registers the user’s touch. Software tools combine the information received with the arrangement of elements on the screen and perform the corresponding action. When falling, it often takes a hit on itself, as a result of which it cracks. Replacing this element is cheaper than the matrix.
These components can be attached to each other in two ways:
Through the air gap. This simpler design, used earlier, implies easy replacement of glass without the use of special tools.
Without an air gap. the so-called OGS-display, which is a single unit, combining a matrix and a touchscreen. Replacement can be carried out independently, but takes more time and requires the use of special devices.
How to replace glass on a smartphone yourself
From the foregoing, it follows that the replacement is carried out by two different methods, depending on the type of connection of the matrix with the touchscreen.
OGS Screen Replacement
The separation of the two components in this case is a very complex process, which is carried out only in service centers, and not all of them. If you decide to change it yourself, it is better to purchase the OGS module assembly (along with the matrix).
In service centers, the following set of tools is used:
- stand for screen warming with preliminary fixation;
- thread for separating display elements;
- stencil. after placement in it, photopolymer glue is applied to the phone;
- UV lamp for bonding.
Without the presence of the specified equipment, it is rather difficult to carry out an operation to separate the elements and their bonding. Currently, this type of screen is used in most smartphones.
In general, replacing the touchscreen on the OGS-display is carried out in the following sequence:
Removing the SIM card and memory card, removing the back cover. If the cover is non-removable, it is necessary to tuck the case near the screen with a plastic object. A detailed disassembly of a specific model can be tried on YouTube or another hosting.
Removing the display module. The procedure involves heating the device with a hairdryer and pulling the part.
The matrix is cleaned of adhesive residues with a cleaner, then degreased.
The matrix is covered with a layer of glue and matched with a touchscreen. It is important to perform the comparison as accurately as possible, otherwise the sensor may not work correctly when skewed.
Dry the glue with a UV lamp. The process takes 10-30 minutes to cure the adhesive component.
This completes the procedure. In the case of the replacement of an integral module, it is enough just to disconnect the element and the wires that fit to it, then install the new one in the old place and connect it.
Replacement on screen with air gap
Now we will figure out how to replace the glass on a smartphone itself, whose screen has an air gap. In this case, the procedure is not so complicated and can be quite simply performed at home. This will save a decent amount. Before you begin, you must make sure that you have the following tools:
- small Phillips screwdrivers;
- plastic scraper (how to pry off elements);
Glass replacement is carried out in the following steps:
- The phone is disassembled.
- The screen is detached.
These are the two main methods of replacing the touchscreen on a smartphone on its own. And in order to avoid further damage, a protective glass is glued to the touch panel. We will analyze this procedure in more detail.
Do-it-yourself replacement of the protective glass on the smartphone
First of all, you will need to remove the old protective glass. Replacement is often carried out after it has been broken, so the procedure will be described from this position:
- On the glass is the most surviving corner, on which there are no signs of damage (usually farthest from the place of impact).
- A suction cup clings to this angle.
When performing the procedure, the most important thing is not to damage the main glass of the phone.
How to stick glass on a smartphone
Before starting the operation, make sure that in addition to the glass, all auxiliary tools are present:
- a lint-free napkin;
- rubber gloves (not necessary if you act carefully);
- special cleaner for alcohol-based glass.
Usually complete with a protective glass there is a wet towel soaked in a cleaner, and the second for wiping dry.
Bonding is performed as follows:
The smartphone screen is wiped with a cleaner wipe. It is important to go through all the corners, so that no specks, stains, fingerprints remain on the surface.
The first protective film is removed from the glass. on the side that is glued to the phone.
The glass moves to the screen and is matched with all the holes, and then lowered for gluing.
The procedure is completed, now the touchscreen is protected from external influences. In the event of a fall, the impact will take glass, which is easy to replace.
Following the recommendations presented, you will be able to independently change the main glass of the phone. The replacement procedure depends on the design of the screen. If there is an air gap, less tools will be needed, if not, more. To prevent damage to the touch panel, a protective glass is used in the future, self-adhesive sticker of which will not take much time.