In case you have not changed the original firmware and just want to return the phone to its original state, you can use code to reset the firmware. When using it, all data on the phone and not part of the firmware will be erased. You can see the code applying to the representative of the manufacturer of your phone. Find his contact information on the official website. Provide the IMEI of your mobile, then enter the code.
If your phone is running modified firmware, and you want to set a standard, you will need to synchronize your mobile with your computer. Use the date cable and a CD with the drivers that are supplied with your phone. If these components are missing, download driver on the official website of the manufacturer of your cell phone. Ensure that they are suited exactly for your model phone. Buy data cable in mobile machinery shop. Install the driver and software, then connect cell to PC. It is necessary to implement the actions in this sequence, otherwise the computer may not recognize your phone.
Download the firmware and install the software for flashing. You can find these components on the fan sites of the manufacturer of your phone. Install only the firmwarethat is marked as a factory. Make sure the phone battery is fully charged. In any case, do not disconnect the phone until the message about successful update. Until the operation is complete do not use the phone or turn off the computer. Try to use only the software which is manual, otherwise it is advisable to contact a specialized service on repair of the cell.
Advice 2: How to return phone to factory firmware
Return to standard firmware on your phone to get rid of the problems with the function of the software, various freezes and crashes the device. In this case, after a factory reset (Hard Reset) the firmware of the device will come to its original state in which it was installed by the manufacturer.
Reset to factory firmware of Android phone is performed using corresponding setting in menu or by keyboard shortcuts (if it is not possible to turn on the phone). To reset the firmware of the phone, go to menu "Settings" of the device. Then click "About device" and select "factory Reset". The name of the menu item to call to reset may vary depending on operating system version and manufacturer of the device, which made changes to the standard firmware. If necessary, enter the security code to reset software, and then confirm the operation.
If you want to return phone to factory status in case of impossibility of its full launch, hold down the key combination the phone, which can be described in the instructions for use of the device, on specialized forums or on the official website of the device manufacturer in the technical documentation. Most machines drop the version of their operating system and return to factory settings when using key combinations unlock (enable) the menu button and volume down. It is worth noting that some phones to factory reset using the volume up key. The power button can be released after the launch of the smartphone, and the volume keys and the menu should be pressed for a few seconds before the start of the formatting process.
For resetting iPhone you can also use the corresponding menu item. To do this, go to "Settings" - "General" - "Reset - "erase all content and settings". Double-confirm the action and wait for the return phone to factory condition.
You can also reset the device using iTunes. Connect your phone to your computer and open iTunes. After that select the device name in the upper right corner of the program. In the "Overview" section and click on "Restore". Remember that resetting the firmware will lose all saved settings and data, but because before surgery it is recommended to make a backup.
Reset the firmware of your Windows phone also performed using the corresponding function available in the settings. Click "Settings" and go to "device Information", then select "factory Reset". Double-confirm the transaction and wait for notification of completion of formatting.
Some models of Windows phones can be returned to factory settings without the need to switch on the device. To do this, hold down the volume down button simultaneously with the power supply. Release the power button. Once you see the logo of the phone, release volume down key. Then click volume up, volume down, power and then volume down. After that, wait for reset and you are prompted on the screen.