S4 power button on one side

Hello dear Samsung users:

According to your description: Since it is not possible to check your phone in the network, in order to understand and solve your problem more specifically, it is recommended that you send your phone to the nearest Samsung service center for testing, and the service center will determine the specific problem of the phone according to the test results.

It is recommended that you apply for "appointment to store" on Samsung's official website to enjoy priority repair services

After the appointment is successful, please bring your machine, invoice and warranty card to the service center where you made the appointment on time.

Comments, suggestions, complaints, please click:

Look for after-sales, power button problems.

Normal, some models are like that, don't ask the mobile phone repair master.

It seems that you are out of luck, and it has something to do with the factory.

It should be a system version problem.,If it doesn't affect the use of it, don't do it.,Don't do it yourself, study it and re-flash the ROM of the official website.,Your computer** a brush master car closed to study the flash.,There are also a lot of tutorials on the Internet that are closed to the crack.,I believe you will soon understand。

Samsung S4 is the version,At present, all kinds of root flashes are not very stable,Now many of the broken scum version you brush casually doesn't matter。 The current iOS7 and Android do not support root very much

There are four corners. It's a matter of mold. It's all like this. Some guests have come back and said. But the comparison is all like this.

I have it too. After-sales careless. Say no problem.

Is it a border? Can you shoot a piece** to see if you can't.

If the invoice warranty card is complete, you can go to the after-sales service to replace the power button for free. It is not possible to replace it.

s4 in fact, root a good don't flash the machine because out of the spring base how long the Chinese version is afraid of instability, I don't dare to brush, and stuffy and you now cover the cover in it seems that there is no warranty because of the brush, you go to the mobile phone store on the side of the road to find someone.

There are 2 situations in which the brightness of the Samsung S4 mobile phone screen automatically darkens and brightens:

1.When the brightness of the mobile phone is checked "Auto", the progress bar of the brightness can still be sliding, and the brightness will still change: after the automatic mode is started, you can still choose the brightness This function is a native system function, when the automatic mode is checked, the brightness of the mobile phone screen can be fine-tuned according to the requirements, this phenomenon is normal, please feel free to use.

2.When entering some functions such as email, Internet, etc., the screen brightness of the mobile phone will automatically dim: this function is caused by starting the "power saving mode", after turning on the power saving mode, in order to save the battery usage of the mobile phone, the screen will automatically dim after the power saving mode is started.

Samsung S4 phone power button can't lock screen, please follow the steps below:

1.Restart your phone.

2.Uninstall recently installed third-party apps.

3.Back up your data and try to do a factory reset.

If the problem persists, it is recommended to bring the purchase invoice, repair card and mobile phone to the local Samsung service center for professional engineers to help test.

Samsung S4 screen can't be dimmed automatically, you can set My Device display brightness to cancel auto-adjustment.

Addendum: Based on your description, it is recommended that you do the following:

1.If possible, replace the spare battery. Test whether it is caused by poor battery performance2Remove the battery and clean the metal contacts of the battery and the battery of the mobile phone with an eraser. It is excluded that the metal contacts of the battery are caused by poor contact caused by an oxide layer.

If the problem persists, it is recommended that you bring the three-pack voucher and send the mobile phone to the nearest Samsung service center for testing, and please visit the specific service center address.

Roma power bank can be used to charge Samsung Galaxy S4, and it is very convenient, Roma mobile power supply compatibility is very high, I also have one, the landlord started Galaxy S4 old fiber, congratulations.