Originally Posted by patkylie
So I need to "wipe data / factory reset" & "wipe dalvik cache " in cwm recovery , then flash new purity rom
Will it erase my files in sd storage ? eg mp3, jpeg movies ?
Sent from my Nexus 5 using xda app-developers app
make a backup. make sure you have a copy of everything you want to save/keep on your computer. full wipe (twrp = data, system, dalvik, cache. cwm = wipe data, wipe cache, wipe dalvik, format /system). flash rom and gapps.
when you're coming from the stock firmware or a different rom, you have to perform a full wipe before flashing.