Wipe Cache partition OnePlus 2 - hard reset method

 One can find the info here(https://www.hardreset.info/devices/oneplus/oneplus-2/wipe-cache/). Its replicated here(redundancy is good).

• Turn off OP2 by pressing power(1)

• Use hard reset button(volume down(2) + power) to enter the bootloader menu

It will enter the the boot option (language selection)

in this mode select the language using vol up or down and power to confirm

• select wipe data and cache 

• Select wipe cache and confirm by pressing power

• reboot