With the current stage of more and more digital devices in order to reduce the opening, improve the tightness, waterproofness and a series of reasons, many devices have adopted the use of glue for structural fixation, especially in the common smart wearable devices, mobile phone devices.
However, after the use of glue for fixed equipment for a long time, there may be a series of problems such as degumming, if the equipment is opened, it will affect the normal use of the equipment in most cases. For the case of equipment opening, it can generally be solved through three ways: official repair, third-party store repair, and manual repair. The content of this time takes the Xiaomi bracelet 6 NFC version used by the author as an example, which has a certain reference effect on the repair of some wearable devices that also appear to be opened, and it is possible to talk about how this type of device can be repaired if there is a problem.
Important reminder: For the repair of their own damaged equipment, you need to have a certain hands-on operation ability, and for the equipment it is best to have a certain understanding and the corresponding basic knowledge, you can have a certain understanding of your own operational risks, after you are ready, you can repair the equipment. The example selected by the author this time is the Xiaomi Bracelet 6 NFC version, if the device is different, it can be repaired according to the actual situation after reference.
The author's Xiaomi Bracelet 6 NFC Edition was purchased in April 2021 and belongs to the first batch. In daily use, it is basically removed except for charging and needing to be exposed to solvents such as detergents, and it is a heavy use user. In the process of the author's outing in early April 2022, I inadvertently found that the Xiaomi Bracelet 6 NFC Version screen worn on the author's wrist actually appeared to be opened, and the screen has been separated from the middle frame of the bracelet.
△ On the way out, I found that the screen of the Xiaomi Bracelet 6 NFC Edition had degummed and separated
After finding the problem of opening the glue on the screen, the author immediately thought of contacting the official for after-sales. However, after the author inquired about the date of purchase, he found that it had been insured for a few days, so it could not be repaired during the warranty period. Smart choice of other ways to repair. Here is a reminder to all readers, if there is a problem with the equipment, please give priority to contacting the official service during the warranty period.
△ The author's equipment has been insured when there is a problem
After the equipment is insured, it is usually a good choice to contact the official for maintenance, which can enjoy the quality of the original factory and ensure reliability. After the Xiaomi Bracelet 6 NFC Edition was opened, the author also contacted the Xiaomi official, and the feedback was that the Xiaomi Bracelet 6 NFC Edition was only replaced and not repaired, and the new Mi Bracelet 6 NFC Edition could be replaced with a 20% discount price. After considering it, the author believes that the price is too expensive, so it does not consider the official replacement channel.
△ Xiaomi officially given the solution channel
△ Xiaomi officially given the solution channel
In the third-party channel, you can choose to send repairs. According to the price I learned, the price of replacing the screen cover glass like the Xiaomi Bracelet 6 NFC edition is about 30 yuan (the adhesive screen is also basically this price), and the price of replacing the screen assembly (that is, including display, touch, and glass cover) is about 70 yuan. If you are more sensitive to official prices and have insufficient confidence in your own hands-on ability, third-party channels are also an option.
Since the author has most of the digital products on hand maintenance will be used B7000 series glue (Taobao price is about 10 yuan), this glue for the glue to glue the Millet Bracelet 6 NFC screen is basically no problem, but the waterproof performance may be difficult to guarantee, after making psychological preparations, the author began to repair the glue of the Xiaomi Bracelet 6 NFC version screen.
The tools I prepared are tweezers (for opening the screen cable), B7000 glue (glue screen), alcohol (glue treatment), rubber band (auxiliary screen bonding), and large steel needle (remove old glue, clean the edge of the bracket).
△ Some tools for repair
For the first step of digital product maintenance, first release the static electricity that may be carried on the body, you can deal with the static electricity of the body by washing your hands, touching the metal door handle, touching the wall to conduct electricity, etc., to avoid the risk of static breakdown that may occur during the demolition and repair process.
During the maintenance process, we need to power off the device as much as possible, and the Xiaomi Bracelet 6 NFC version is more difficult to power off the device due to structural problems (batteries and other components are under the motherboard). Because it is more difficult to cut off the power, we can wait for the bracelet to run out of power before operating.
We first at a certain angle, for the main body of the screen and the bracelet to separate, it should be noted that the screen and the motherboard of the Mi bracelet 6 are connected through the cable, the line is very fragile, so when looking for the right angle to enter the screen, it is necessary to avoid vigorous pulling, but also to avoid too large an injury to the lifting angle and the display line.
△ Xiaomi Mi Band 6 NFC Edition in the case of glue opening
The wiring between the screen of the Mi Band 6 and the motherboard is connected using a ZIF interface, and a buffer foam is covered on the ZIF interface, so in the process of removing the screen, we need to remove the buffer foam on the interface first. Use tweezers to cushion the corner of the foam to remove this piece of foam, you can see the ZIF connector, and the black snap of the connector can be lifted to unseat the screen line. Since the screen and the body of the bracelet have been separated by the glue, we can remove the screen after the cable is withdrawn.
△ZiF connector is covered with black cushioned foam
△ Remove the buffer foam
△ Pick up the ZIF connector and remove the fixation to the screen cable
After removing the screen, we can see that there will be aging glue in the contact part of the screen cover glass and the main bracket of the bracelet, and there is also aging glue in the glue part of the main body of the bracelet and the screen. At this time, we need to clean up the aging glue to ensure a better adhesion effect. Therefore, the author uses steel to pick up the aging glue on the screen, and then peels off the aging glue little by little through forceps. It should be noted that in the process of removing the glue, it is necessary to master the strength and avoid sharp objects scratching into the screen and damaging the screen.
△ The screen and bracelet internal bracket have aging glue that needs to be cleaned
△ The screen and bracelet internal bracket have aging glue that needs to be cleaned
In the glue treatment at the edge of the main body, because there is not much residue at the edge, the glue can be removed by basically removing the glue by removing a few turns along the edge with a steel needle. Finally, after removing the glue with steel needles and forceps, the screen and the interior of the body can also be cleaned with anhydrous alcohol to achieve the purpose of better removing glue.
△ The screen and the edge of the bracelet body after cleaning
△ The screen and the edge of the bracelet body after cleaning
△ Treated down the aging glue
After cleaning the residual glue, you can connect the screen and the motherboard of the bracelet, and then add glue to the part where the screen cover and the main body of the bracelet are connected, the amount of glue should not be too much, to avoid spillage into the inside of the equipment to cause damage, and if the spillage glue is on the front surface of the screen glass, it can also be removed. The B7000 glue used by the author can also be adjusted within 10 minutes of bonding during use, which makes a better fit between the screen and the main body, and avoids the glue flowing into the inside of the bracelet.
△After the treatment is completed, the gluing treatment can be carried out
In this process, the author has carried out the process of laminating the screen, as shown in the figure, the author's screen is normal after the lamination, but there is some spillage on the surface. This part of the spilled glue can be treated by anhydrous alcohol, after the screen is basically fixed, you can start to clean the spilled glue on the surface of the screen to avoid being able to clean after curing.
△ Part of the spilled glue is on the surface of the screen and can be cleaned before full curing
△ Clean the screen after the surface
The full curing time of the B7000 series glue takes 24-48 hours, so after cleaning up the glue overflowing on the surface of the screen, it is also necessary to fix the screen with a rubber band, and after bundling and waiting for curing, it can be taken out for normal use. However, it is worth noting that the waterproof performance of the bracelet may not be guaranteed, so the author did not use it into the water.
△ It takes time for the glue to fully cure, so it needs to be prevented for a period of time after fixing
To summarize:
For the repair of the equipment, there are often a variety of ways to choose, you can choose the most suitable for their own way to achieve the desired effect. And if you have confidence in yourself and are full of ideas about how to solve the problems with the device, then fixing the device yourself will bring you a sense of accomplishment and leave a good memory. The content of this article may also bring you help in the repair of similar equipment, and I hope that everyone can go well when repairing their own equipment.