So, I want to flash a new rom with gapps. I've done this before, but I always did a factory reset and flashed the new rom which was in the downloads folder in my phone. I was wondering, if I wipe my data and system via twrp, will my internal partition be wiped? Because if it does, I have nothing to flash cause that's where my rom is stored. I have the Samsung Galaxy Nexus which doesn't have a sdcard, so that's not an option.
Thanks in advance.