Meizu mx6 fingerprint sensor not working. What to do if the mTouch button does not work on Meizu M3s. Elimination of system defects

The level of personal data security on modern smartphones from the Chinese manufacturer Meizu is beyond praise. The simplest example would be a device's fingerprint scanner, which recognizes only its owner, the owner of the gadget, and will block access to the phone if a hack is attempted. There is an opinion about the unreliability of such scanners, users complain that they often fail. Whether it is necessary to carry the device to the service, or you can solve the problem on your own, we deal with this issue in the format of this review.

Such a failure can occur for several reasons, the most popular of them are mechanical failures and software malfunctions, you can read about their elimination in the continuation of the article.

operating system

The system files embedded in the gadget at the factory are far from perfect and are subject to various kinds of failures. Given that they control all processes, this may also affect the scanner to which this review is dedicated. You can solve such a malfunction by resetting the settings to the factory values, but if this does not help, a flashing will be required.

• In the menu of your MEIZU, find the "restore and reset" section. Usually it is towards the end of the list, scroll down.
• By clicking on the tab, check all the boxes, this will help to backup your data. If you do not store anything important on the flagship, you can not do this, or transfer the files to removable media.
• It remains to agree with the conditions of the device and click "ok", and then wait for the procedure to end.

Perform the gadget settings as when you first turned it on, date, time, and so on, the problem should disappear, and the scanner function will return.

Hardware component

These are more complex breakdowns relating to the electronic components of the microcircuit. The smallest details together create a chain of contacts, thanks to which the gadget works, a fall or water ingress usually causes such malfunctions.

Most likely it will not be possible to "cure" the device on your own, it will not even be possible to install a failed part. The service center will cope with this task at once, therefore, if the reset does not help, take the device to a specialist for diagnostics.

It so happened that Meizu M3s users have a massive problem when the Home / mTouch touch button does not work: the scanner and the “back” command do not work, there are also arbitrary reboots. There is a problem with the appearance of red stripes on the display, this is described in the article.

The reasons for the failure of the button, as practice shows, can be different:

• crookedly installed firmware image
• moisture ingress
• manufacturing defects

The first option is found on Chinese versions of smartphones (usually bought from Aliexpress), when an unofficial Global firmware image is installed on the smartphone.

It is solved programmatically: install the Chinese version of Flyme 5.1.5.1A firmware with data cleaning, check the button, if it works, then switch to the official Global firmware by changing id ()

If moisture or condensation gets in, oxidation is created in the button, as a result of which it refuses to work.

In some cases, disassembly helps, as well as cleaning the buttons and contacts from oxide. With this problem, it is better to contact the service center, especially if the smartphone warranty has not expired.

As for the factory marriage, this is a massive problem that manifests itself some time after the purchase. The solution to the problem is to replace the button.

Smartphone under warranty? Then be sure to contact the seller with the warranty card or directly to the warranty service center.

If the smartphone was bought from China and there is no warranty for it, then you have 2 options:

• take it to a paid repair service
• change the button yourself by ordering from China.

Important! There are 2 versions of buttons: "VF SF" and "VGS". If you install the VF FS button, over time the defect may reappear, and with the VGS version (judging by the polls on w3bsit3-dns.com) the problem appears extremely rarely.

You can buy a VGS version button on Aliexpress, for example, from this seller (LINK). This seller attaches the necessary tools to the order.

Replacing the button is not a difficult procedure, we attach the instructions below:

All actions you do at your own peril and risk!! We recommend contacting a specialized service center!
Before starting disassembly, you need to turn off the smartphone and remove the SIM card tray.

Meizu M3 is a smartphone that was supposed to be a hit. Belongs to the budget segment, has good characteristics, is definitely a bestseller. Quality filling and good price - what people need.

Recently, the owners of this phone began to complain that the fingerprint does not work. As it turns out, the problem is quite common. What are the reasons for the breakdown? This problem may be due to:

• Mechanical failures;
• Software problems.

Let's figure it out.

Mechanical failures

Most likely, the problem lies in the fingerprint button itself, which you just need to replace. But before you do this, remember what happened to your gadget recently. Maybe he fell somewhere, hit himself or fell into the water. If this happened, then he received a mechanical malfunction. In Meizu M3, this button is responsible for three important functions:

• Back;
• Home;
• Fingerprint identification.

If all three functions stopped working, then, most likely, mTouch is out of order.

Mechanical failures of the mtouch can occur if dropped or exposed to moisture. If the smartphone is under warranty, we advise you to take it to a service center, if not, then contact a regular mobile phone workshop; In extreme cases, you can repair the damage yourself. For self-repair, order a button, remove the board and change the broken part. The cause of the breakdown can also be hidden in software problems. Repair can cost you 1500-3000 rubles.

If you don’t understand phones, don’t bother, it’s better to take it to a service center, let them diagnose and find out exactly what the problem is.

Software problems

If your phone has stopped responding to a fingerprint and you are sure that everything has been fine with it recently - it has not fallen anywhere, it has not been hit and moisture could not get there, then the possible reasons for the failure of the mtouch key may be that firmware crashed. To solve the problem, just reset the settings to the factory settings - and everything should work. To do this, go to the " About phone”, enter the tab “ Reset" and press " Start».

But be careful, as this procedure will clear all data from the phone, in this regard, it is worth creating a backup copy of the data. If everything started working, then there are no problems, and if it doesn’t work, then I advise you to return to the previous paragraph.

One of the weak points of Meizu smartphones is the fingerprint scanner (mTouch). Some owners complain that this button does not perform its functions immediately after purchasing a mobile device. For others, it fails after a certain time. If the phone is under warranty service, then the problem of a non-working mTouch is solved by handing over the device to a service center. In the absence of a guarantee, you can try to fix the defect yourself. Let's look at what to do if the fingerprint does not work on Meizu M3 Note, M3 mini or another gadget from this manufacturer.

Possible reasons for the failure of the mTouch key on Meizu

In all Meizu smartphones, the fingerprint scanner is built into the proprietary mTouch touch-mechanical button, which has three functions:

If the fingerprint button and the "Back" function do not work on Meizu M3S, the reason may lie in the following:

• mechanical failure of the key;
• moisture penetration under the mobile phone case;
• software failure.

Mechanical problems mTouch on Meizu

If all three functions (“Back”, “Home” and “Scanner”) stopped working on your device at the same time, most likely the mTouch button simply failed. A similar problem can be detected after a strong blow, drop or wet phone. However, sometimes a malfunction occurs without any apparent reason.

If the warranty period for the Meizu M3 has not yet expired, it is better to take it to a service center. Otherwise, the broken key can be changed independently:

If the cause of the malfunction was moisture on the phone, carefully inspect the key contacts after disassembly. If there is oxidation, clean them with alcohol and a soft cloth.

Meizu software troubleshooting

If the fingerprint scanner and the “Back” function suddenly stop working on your Meise M3 Mini, you should not dismiss the failure of the software. On Android devices, such malfunctions happen quite often. To fix them, you will need to reset all settings on your mobile phone to factory settings.

To perform a hard reset you need:

After a complete cleaning and reboot, the mTouch button should return all functionality.

The hard reset procedure removes not only all settings from the phone, but also user files located on the gadget's internal memory. Therefore, before activating it, save important information to an external drive or computer.

If you bought Meizu on AliExpress or another Chinese platform and the fingerprint scanner does not work on it from the first days of operation, most likely the smartphone was originally developed for the Asian market and it has local firmware or, at best, a Russified image of the global one. To check the firmware, you need to go to the About phone section and see what is written in the Flyme version line. If the last letter is A, U or C, then it is Chinese firmware. The global version ends with G or I.

To fix the problem, you will need to install the global firmware by changing the ID. This is done as follows:

1. Link your mobile phone to your Flyme account. This is done in the "Accounts" section.
2. In the "Personal Settings" tab, unlock root access.
   
3. Install on the device the program for managing the rights of the Superuser SuperSU and the Terminal Emulation terminal.
4. Download the chid.sh script to the root of internal memory. It is he who changes the old ID to a new one.
5. Also download the latest global firmware version for your Meizu model. The file must be named update.zip.
6. Launch Terminal Emulation and enter two commands in it via Enter: "su" and "sh/storage/emulated/0/chid.sh".
7. After successful ID change