Originally Posted by timmaaa
When you get error 99 you need to force a reboot to the bootloader by holding volume down and power buttons together, then start again (without the adb reboot bootloader command because you're already in bootloader).
Did you factory reset in bootloader? If so you've corrupted your sd card and need to format it by mounting it in TWRP and formatting in Windows.
Sent from my Evita
UPDATE: I tried a bunch of resets/wipes on bootloader and TWRP and now my laptop running Ubuntu can see the sd storage but not my windows 7 desktop.
Trying to install a rom and try again.