What should I do if the Mate 30 has a watermark on the water inlet screen?

In order to reduce your losses, it is recommended that you turn off your mobile phone and bring the relevant proof of purchase to a nearby Huawei customer service center for repair. You can use the Huawei official website to find the address of a Huawei Customer Service Center near you.

Precautions after water and liquid ingress in the mobile phone:

1.Do not move or shake your phone frequently after the liquid is ingested to avoid moisture spreading inside the phone.

2.Do not blow with a hair dryer or bake at high temperatures (including microwave heating) after liquid infusion, so as to avoid liquid being blown into the phone and damage the phone by high temperatures.

3.Mobile phones are made of delicate electronic components, and there is a potential risk after liquid ingress, so please keep your phone turned off.

4.If you don't have a backup of your data, there may be a risk of data loss during repairs. After you go to the Huawei Customer Service Center, you can consult with a staff member to help you evaluate whether you can back up your data.

What to do if there is a watermark in the water on the screen.

1. Water mist mark: disassemble and blow with a hair dryer, one is to put it in something with strong water absorption for a few hours, such as filter paper and so on.

2. It is still the imprint left after the water dries: these two treatment methods are different, and this kind of imprint can only be disassembled and wiped with a soft rag. Dismantling is a technical job, if you have experience in dismantling the machine then disassemble it yourself, if not, it is best to find after-sales service or find maintenance personnel to get it for you.

Phone disassembly tutorial.

1. We need to remove the battery of the mobile phone, and then remove the screws with a screwdriver to remove the SIM card slot under the battery. Be careful not to throw away the unloaded items as they are already intact and not to be discarded.

2. At this moment, we can see that the back cover of the mobile phone is made of polycarbonate, and there is a buckle on its middle shell, which is used to be just right stuck above the middle shell. The middle shell, on the other hand, is made of metal, which is different from the middle shell. It is surrounded by volume buttons and power buttons, because it is independent, so it is relatively convenient to disassemble the back case.

Opening the back cover, the first thing we see is the complete artistic workmanship of the phone.

3. Now you need to remove the screen, you need to use your fingernails to warp the screen with a screwdriver, and then we need to use your fingernails to buckle the screen outward, while buckle, while sliding towards the upper place, and then put the removed screen away. Underneath the phone's screen are two rows of wires that connect the screen to the body. We need to use a screwdriver to warp the cables without straining, because the material of the screwdriver is too hard and may hurt the cables.

After removing the cable, we must also remove the screws around the cable.

4. We will see the motherboard and shield plate below, gently remove it with a screwdriver and place it in a dry place. At this time, we will see the deepest part of the phone, there is a black tape at the interface inside, we have to tear off the tape by hand, but do not throw it away. The metal behind the tape is where the battery was placed before, and if you put the battery close to the metal, you will still see his instantaneous short circuit, and there may be sparks.

All you need to do is put the vinyl tape back on.

5. The disassembly is completed.

In general, it is very easy to solve the problem of water ingress in the mobile phone, because in today's market, there are many smartphones that have a waterproof function, so even if the mobile phone falls into the water, it is difficult to damage. Of course, if your phone falls into a "vinegar basin" instead of clean water, it can be very easily damaged. Therefore, I would like to remind you that if you are working, it is best to put your mobile phone in another place, or wear a protective film for your mobile phone, so that it will not be soaked in water.

1.Try to place your phone in a dry and ventilated place, and use a paper towel to blot the liquid on the surface of your phone.

2.If the phone is powered on, press the power button to turn it off; If your phone is turned off, don't try to turn it on.

3.Remove the SIM card and memory card.

4.Take your phone to a nearby Huawei customer service center for maintenance as soon as possible to avoid unnecessary losses. If you don't have a backup of your data, there may be a risk of data loss when repairing.

We are sorry to hear this, and in order to reduce your losses, we recommend that you deal with it as follows:

1. Please try to put the mobile phone in a dry and ventilated place and use a paper towel to blot the surface of the mobile phone before the water stain.

2. If the ruler is on, please press the power button to turn it off; If your phone is turned off, don't try to turn it on.

3. Please take out the SIM card and microSD card.

4. Take your phone to a Huawei customer service center as soon as possible to avoid unnecessary losses.

Precautions: 1. Do not move or shake the mobile phone frequently after entering the water, so as to avoid the spread of moisture inside the mobile phone.

2. Do not blow with a hair dryer or bake at high temperature after entering the water, so as to avoid the liquid being blown into the inside of the mobile phone and damaging the mobile phone at high temperature.

3. The mobile phone is composed of precision electronic components, and there is a hidden risk after water ingress, so please keep the mobile phone turned off.

4. If you don't have a backup data, there may be a risk of data loss during repair.