Originally Posted by reNeglect
Ah sorry didn't verify before my previous post. I think if you boot into fastboot mode, and use adb to push a zip to your sdcard would work.
I've tried using adb while the Prime is in fastboot, and adb won't recognize it. Fastboot sees it, but it cant push files. I tried "fastboot update rom.zip" and it gives me this error
archive does not contain 'android-info.txt'
archive does not contain 'android-product.txt'
error: update package has no android-info.txt or android-product.txt