I have forgotten the lock code for my kitkat 4.4. Is there a way to hard reset it back to factory? I only have a power button and a volume button. Can someone please help me?
AllWinner devices (devices powered by a AllWinner CPU) don't have a recovery menu from which to perform a factory reset.
In order to reset your device, you will need to know which CPU is inside. AllWinner CPU have number such as A10, A13, A23, A33, etc. Such information can be found out from the device's specifications from the internet or manually by opening the device and then locate the CPU.
So, when you get all the information about the CPU, you will need to find the ROM/firmware for that device then flash it to the device using a tool called PhoenixSuit or LiveSuit (both are similar).
The flashing process is quite simple. Go here for a tutorial on how to use PhoenixSuit for flashing a AllWinner device (A23 in the example).