Samsung i9300 set button and back button flashing non stop!! What the hell is wrong!!

According to your description, it is recommended to factory reset your phone (Settings-Reset-Factory Reset), before resetting factory settings, please back up the important data stored on your phone in advance, such as: **book, SMS, **, **files, etc., because after the phone factory reset, you will lose all the content stored on the phone.

If it still doesn't work, it is recommended to bring the phone, invoice, and warranty card to the Samsung local service center, and the engineer will help further check the phone. For information on Samsung's designated authorized service centers, please click on the ** below.

I hope the above reply will be helpful to you, thank you!

Welcome to the Samsung Digital Service Platform to ask questions.

Don't brush the landlord.,Especially unofficial.,You use the Unicom version.,Instructions are licensed.,If you brush the unofficial version of the system,Maybe after-sales warranty is not given.,I had a moto before.,Because of system problems,Customer service refuses to warranty.。 It is recommended to take a look at customer service. It may be a system software conflict, or a virus.

It is recommended that you flash the machine or warranty, there may be a problem with the system!

Have you checked the settings to see if it is a problem with your settings? If it doesn't work, restore the factory.,Or flash the machine.。。

The preliminary analysis is that it must have been poisoned.

Is it a text message with a notification or something that causes the LED light to flash.

The Samsung i9300 phone keys are malfunctioning, usually due to damaged keys.

In this case, it can only be recommended that the user send the mobile phone to the local brand customer service for testing.

After the customer service informs the customer service of the abnormal situation on the mobile phone, the engineer will detect the mobile phone in detail.

The after-sales engineer will find out the problems of the mobile phone, and if the mobile phone is under warranty and is a natural failure, the after-sales service is responsible for the warranty.

If it is out of warranty or caused by a human fault, you can only pay for repairs.

It's very simple.,Just change the keyboard.,It's a matter of dozens of dollars.。

Hello, we apologize for the inconvenience!

For cases where the feedback shows flickering, it is recommended to check:

I hope it can help you, thank you for choosing Samsung phone!

1. Change the data to see if it is still charging slowly?

2. Desktop Menu Settings Developer Options The display screen is updated, and the problem can be solved by unchecking the check status of this item.

Hello, I suggest you follow the steps below to try it:

1.Check whether the phone is up to date with the third-party software, it is possible that the software is not compatible with the phone to cause this phenomenon, it is recommended that you try to uninstall it (Settings - Applications - Manage Applications - Select ** - Uninstall).

2.After removing the SD card and SIM card, turn it on and try it.

3.Back up your phone's data (**book, SMS information, multi** data, etc.) and restore your phone to factory settings: Settings - Reset (or Privacy) - Factory Reset.

If the problem is not solved, it is recommended that you bring the purchase invoice, repair card and mobile phone to the local Samsung service center, and the engineer will test the mobile phone for you (it is recommended that you contact the service center before you go). Service Center Inquiry Page:

I really want to have a sensitivity adjustment, try it.