If you can’t do reset via settings, here is how to hard reset your device using phone keys.
This will delete all the data, so use with caution. If this doesn’t work for Nokia X, Nokia X+, Nokia XL , you may ultimately need to contact Nokia care.
If you are not able to hard reset and recover Nokia X2 using above method, you can still try Nokia Software recovery tool (NSRT). Here is how you can use Nokia Software recovery tool for Nokia X2.
In case your device is not responding and is not being recognized by NSRT, press together volume up and power button and see whether it is now identified.
Step 1. Download and install Nokia Software Recovery Tool to your computer. If possible, make sure that your phone is fully charged.
Step 2. Start Nokia Software Recovery Tool, and connect your phone to your computer with a compatible USB cable. If prompted, select the correct USB mode on your phone: Nokia Suite or Modem.
Step 3. Follow the instructions shown on the tool. The latest version of your phone software will be installed, and your phone will restored back to the factory settings. This process may take some time depending on your internet connection, and you cannot use your phone during the installation.
If your phone is not starting or appears to be stuck, you can also recover your phone with My phone does not start up or respond option.
Try and do let us know, if this helps, in case your device gets unresponsive.
In case your Nokia X, Nokia X+, Nokia XL or Nokia X2 becomes unresponsive or gets stuck or worst gets bricked, here are your options. Though in many cases you may ultimately need to send it to Nokia Care.