Comprehensive cleaning may be necessary in case you decide to sell the phone.
In order to completely clear your mobile phone from personal files, you can use one of the simple methods.
Turn on the phone and delete all files from the phone using the menu keys. Many models support the selection of several files, with the help of this function you can delete several files at once.
Use the firmware reset code. With this code you can erase all the personal information that is in the phone's memory, and also return all settings to the factory state. Go to the manufacturer's website of your device and find technical support contacts. This can be either a phone number or an e-mail address. Provide the IMEI-number of the mobile, and then request the firmware reset code. IMEI number is the serial number of your phone. You can learn it by typing on the keyboard * # 06 # or removing the back cover and the battery.
Synchronize your phone with your computer. To do this, use the data cable and the driver disk. As a rule, you can find all this in the phone kit, otherwise you will have to get it yourself. The data cable you can find in any mobile phone store is available in the online store or on the manufacturer's website. There, on the manufacturer's website, you can find the drivers and software needed for synchronization. In case if the software is not available, download it from one of the fan sites dedicated to your phone, such as allnokia.ru or samsung-fun.ru. Install the driver, then connect the phone to the computer.
Run the software forSynchronize and make sure that the phone is synchronized with the computer. This will be signaled by the corresponding indicator. Use the program to open the phone's file menu. Delete all files that are yours. Also, copy the phonebook and messages stored on the phone to the computer, and then delete them from the mobile memory.