Celkon Q519 Dual SIM

Celkon Q519 Dual SIM was announced in May 2015 and the phone was available for sale from the moment it was announced. It features a 5.0 inches capacitive touchscreen with more than 16 million colors. The resolution of the display is 480 x 854(~ 196 pixel density). Every device, including the one mentioned above, finds a time in which it can no longer handle the strain put on its internal memory. Nevertheless, a hard reset procedure might be the answer – bringing your handset to factory settings erases all data from your phone, all customization and most likely all applications you have downloaded or installed.

Keep in mind that hard resetting either via the software settings or by using the hardware buttons asks that you back-up your data, otherwise it’s all lost and erased. This, however, does not apply to the SIM card, unless you specifically ask to.


However, when you notice that your phone is performing at an undesirable rate, then all you have to do is hard reset the device back to its factory default settings. This hard reset procedure offers you the chance to keep all your desired contents of the SD card, so only elements that are stored on the internal memory will be affected. Before commencing, you should make sure that the device has sufficient battery (above 60 per cent) and backup everything important. You can do this on a hard drive or any other external accessory.

There are two ways to restore the phone to its original state. The first one, also known as soft resetting is a method very much alike to a hard drive format on a conventional computer. Whilst everything important is deleted, the smartphone will be brought back to a working state in an instant. You need to keep in mind that a backup is recommended before beginning this process. Here is the first method to bring back your device to a functional state and get it up and running without problems:

  1.  From the main screen, you have to select Settings.
  2.  From the Settings menu, you will have to choose the ‘Back up & Reset’ icon.
  3.  Click on ‘Factory data reset’.
  4.  Choose Ok and wait for the device to reboot.

The second method uses the hardware buttons and works when the phone is unresponsive and you can`t access the menu of the device. Make sure you have the battery charged because if the phone turns off unexpectedly during the process, your device may be affected. Now you can try the following steps:

  1. Turn off your device.
  2. Press and hold the Volume Down key, the Home button and the Power button.
  3. Your phone will reboot in Recovery mode. Use the Volume buttons to navigate in the menu and the Power button to select an option.
  4. Using the Volume button, navigate to the ‘Wipe data/factory reset’ option and select it using the Power key.
  5. The process will end with the message ‘Data Wipe Complete’.
  6. Wait for your phone to reboot.