How to wipe data/partitions using a TWRP recovery

How to wipe data/partitions using a TWRP recovery

• Make sure to the take backup of your data.
• Install a TWRP recovery on your device
• Your device should have 70%  battery

First: Boot your device into recovery mode. Access to the TWRP Home Screen, from there tap on Wipe option

2nd: From the wipe window if you only want to  factory reset then at the bottom of the screen swipe the button to  factory reset.  factory reset will clean to the cache partition, data partition & next Dalvik partition only.

Note: As it is indicative that TWRP doe'not wipe the internal Phone storage, the factory reset will wipe the internal phone storage like the internal partition and data partition forms one storage area. So, must take a backup before.

3rd: If you think that factory reset will not be of any help to clean everything then go to the Advanced wipe and from there select the partitions you want to clean.

Here, select the data, Dalvik, cache partitions to clean. After selecting swipe the touch button from left to right to clean the selected partitions. (Don't Select Internal Storage unless you want to wipe it out)

Note: Several mobiles need to be converted the file system before you clean them. So you can execute them with the change file system button in blue color. It is not required on always but in some devices.