The signal is poor, the camera can t focus, and the camera suddenly can t focus?

If you have an unstable or bad signal on your phone, it is recommended that you:

1.It may be that the signal coverage of your location is poor, and it is recommended that you restart your phone or try it in a different location.

3.If it doesn't work, please turn it off, take out the SIM card, and try to reinsert it.

4.Replace it with a different SIM card.

If the problem persists after the above operations, it is recommended that you bring the purchase invoice, three-guarantee voucher and mobile phone to the local Samsung service center for testing by the engineer.

If your phone can't focus when taking a photo, you can do it by doing the following:

1.Make sure the camera is functioning properly.

With the camera facing the subject, adjust the shooting distance (keep left and right at wide angle or 1x, telephoto).

Hold above 2m), select MF (manual focus) for AF parameter, and observe the preview interface by dragging the slider back and forth left and right.

If there is a change process from clear to blurry and blurry to clear in the preview, the focusing function of the camera is normal, please continue to troubleshoot according to the following conditions.

If the preview screen is blurry, it may be that your phone's focus function is abnormal, so we recommend that you back up important data in advance (third-party apps such as QQ and WeChat need to be backed up separately) and bring your purchase voucher to a nearby Huawei Customer Service Center for further assistance.

2.Make sure that the camera lens area or laser parts are not soiled or obstructed.

The lens and surroundings must not be occluded or filmed (including transparent);

Some non-original cases block the laser (including transparent ones).

3.The focus mode is different for different scenes.

1) When shooting a face, no focus frame appears on the preview screen, and the focus is completed by whether the preview screen is stable.

2) When a focus frame appears on the preview screen when shooting an object, the focus frame turns orange or white, and the focus is considered complete.

4.Confirm that manual focus or autofocus is selected.

1) After the recording starts, if you click on the screen to focus, the camera will lock the focusing distance in order to ensure the stability of the scene, and then no matter whether the image or position changes, the autofocus will not be performed, and you need to focus manually.

2) If you need to focus all the time during the recording, please do not click on the screen to focus after the recording starts, and try to put the target that needs to be shot clearly in the center of the camera.

5.Make sure there is enough light.

1) When focusing, the camera needs to compare the details and contour information of the object, etc., if the ambient brightness is low, these features of the object will not be obvious, which will affect the camera's judgment of the distance of the object and reduce the focusing speed.

2) It is recommended to choose a scene with sufficient light when taking photos.

6.Keep your phone steady.

When the phone shakes or the subject keeps moving, the focus function will be affected, so please try to keep the phone stable during shooting (if necessary, you can use a tripod to shoot fixedly).

7.Make sure that the camera cache space is sufficient.

Clear the cache of the camera cover and restart your phone. Clear Camera Cache Operation Guide: Go to Settings, search for App Management, search or find the camera, click Storage, select Delete Data and confirm.

If you still take blurry photos, please contact Huawei Consumer Service** (950800), back up your data in advance (third-party apps such as QQ and WeChat need to be backed up separately), and bring your purchase voucher to a nearby Huawei Customer Service Center for more assistance.

Make an appointment for service. Boarding service.

Repair spare parts** inquiry.

This kind of problem is either the fuselage focus or the lens, but most of them are lens problems, you can change the lens to verify whose business is the infiltration, lens problems are more than 8 years old machines, generally the focus motor is not running well, the repair is also very simple, there is an aluminum alloy travel frame in the lens, the motor drives the focusing mechanism to move in the frame, the accumulation of lubricating oil consumption and solidification, resulting in dry operation, just add a little lubricating oil.

If you are using a vivo mobile phone, you can handle it as follows:

1. Adjust the distance between the lens and the shooting position, if you shoot a close scene, it is recommended to click the icon at the top of the camera and use the macro lens to shoot;

2. Keep the body stable when taking pictures, shaking will affect the focusing effect;

3. You can click the viewfinder on the camera interface to focus manually to improve the focusing effect;

4. Go to Settings - Application & Permissions More Settings - Application Management - Find Camera - Storage - Clear Data, and try again, the operation will not clear the album data, it will restore the default settings of the camera;

5. If the above methods fail to help recover, it is recommended to send the machine to the customer service center for processing, enter the vivo official website - my - service outlets - select the provincial and municipal Peitong cavity to inquire about the local service center address and the contact party with the shirt type, or click the web link.

m2 cWhen everything is ready, please follow the brushing tutorial on the official website to use the sixth type of line brush, which is the official flashing tutorial.

A more detailed description of the problem will help netizens understand the troubles you are encountering and help you solve the problem more accurately. Thank you for supporting Xiaomi phones!

The camera is not focused accurately, that is, it is often said to be out of focus, so the first thing to determine is the body or the lens:

1. If you change any lens to be out of focus, then it can be determined that the fuselage is out of focus, which must be debugged by professionals at the after-sales maintenance station.

2. If some lenses are out of focus and some don't run when shooting, then it is likely to be out of focus (usually the probability of the sub-factory lens is out of focus), you can test it by the following methods: focus with the center point, shoot at a distance of two meters, go to the next target drawing of the test focus on the Internet and print it out, try a few photos on the tripod, and the direction and distance of the focus are fixed, and the distance is also very small, so that you can adjust it when shooting (such as running forward, taking portraits with the ears as the focus point, and running backwards, Just use the tip of the nose as the focus point, etc.), most high-end DSLRs have focus fine-tuning to solve this problem. If the distance and direction of the focus are irregular, it is also necessary to go to the maintenance station for debugging.

3. The off-focus lens of the auxiliary factory can be debugged free of charge after the brand's after-sales.

4. Some low-end fixed focal heads (including the original factory) occasionally lose focus when the aperture is fully open, which can be solved by shrinking the aperture by one stop.

Make sure the following is done:

1. The lens focus switch is placed on top of the automatic AF for shooting.

2. According to the subject of shooting, the corresponding setting is local focus or point focus or other focus 3. The subject in front of the lens should not be too close, it should be greater than the nearest shooting distance of the lens 4. The environment should not be too dim, otherwise it can not be focused, you can only use manual MF5, press the shutter halfway, hear the drip sound or the focus frame in the sightpiece turns green, and do it completely by pressing it down.

You can make the focus clear, otherwise it's a problem with the lens.

Look at what kind of camera it is, if it is a SLR, it is divided into two situations, 1 is that the SLR itself has a lens fine-tuning function, which can be adjusted directly in the camera menu, but if not, you can take the lens to the after-sales service to adjust, if it is a card machine, then you can only get the after-sales service.

Autofocus is not possible if there is only monochrome in the focus frame, or if it is outside the focal length. If it's a card machine and a mobile phone, it's a fake large aperture anyway.,It's estimated that it's broken rather than set.。

Common reasons for not being able to focus:

1. Too close to the subject. The minimum focusing distance of a DSLR lens is very long, and even a macro lens does not focus within 1cm like a card machine. Generally, the focusing distance of the set lens is about half a meter.

2. Turn off autofocus. Generally, the set is an autofocus lens, which can switch between autofocus and manual focus on the lens, which is a selection switch, AF means autofocus, and MF (or M) means manual.

3. The shooting conditions are not conducive to focusing, such as the light is too dark, the focus point is selected incorrectly, etc.

4. In addition, there are some special situations that affect autofocus, such as the fact that the picture includes objects with very large contrast differences, such as sunlight and shadows, or the subject is very small, or the subject is not significantly different from the surrounding environment.

Is the distance too close to the subject?

If your camera can't focus on taking pictures, it could be due to several reasons: stool rental.

Faulty autofocus: There may be a problem with the camera's autofocus system that prevents it from focusing properly. You can try turning autofocus on or off in the camera settings, or try focusing manually.

Dirty camera lens: Dust or stains on the surface or lens of the camera lens that can interfere with the focusing system and cause inability to focus. The lens surface can be carefully cleaned using a professional camera cleaning kit or a clean spectacle cloth.

Poor light: In low-light situations, the camera may not be able to focus accurately. You can use the camera flash or change the shooting scene to increase the light. Jujube dress.

Incorrect focus mode selection: The camera's focus mode may be set incorrectly, and the appropriate focus mode needs to be changed. In general, the autofocus mode can meet most of the focusing needs.

Camera settings error: The camera settings may have been changed incorrectly, causing the camera to fail to focus on the photo. You can restore your camera's settings to factory settings, or check your camera's manual.

If none of the above methods can solve the problem, the camera may have a hardware failure, and it is recommended to seek professional technical support and repair.

The phone is too close to the subject and moves beyond the closest focus range to the focus range.

When the mobile phone is set to macro mode, it is easy to lose focus, and the normal hole key mode is set;

Ambient light that is too bright or quivering too dark can also lead to a lack of focus, improving light illumination;

The color of the subject surface is too single and the reference object can be used to focus first.

Solutions to the inaccurate focus of the DSLR camera:

1. The lens focus switch is placed on the automatic top to shoot;

2. According to the subject of the shooting, the corresponding setting is local focus, point focus or other focus, and the focus method should be selected;

3. The subject in front of the lens should not be too close, but greater than the nearest shooting distance of the lens, otherwise the focus will not be accurate;

4. The environment should not be too dim, otherwise it can not be focused, you can only use manual or half-press the shutter, hear the sound of dripping or the focusing frame in the eyepiece turns green, and you can focus when you press it completely.

Solutions to the inaccurate focus of the DSLR camera:

1. The lens focus switch is placed on the automatic top to shoot;

2. According to the subject of the shooting, the corresponding setting is local focus, point focus or other focus, and the focus method should be selected quickly;

3. The subject in front of the lens should not be too close, but greater than the nearest shooting distance of the lens, otherwise the focus will not be accurate;

4. The environment can not be too slag sensitive to dimness, otherwise it can not be focused, you can only use manual or half-press the shutter, hear the dripping sound or the focus frame in the eyepiece turns green, and you can do the focus of the beam when you press it completely.