READ EVERYTHING BEFORE FOLLING INTRUCTIONS
first of all flash back to stock firmware and get the latest dash update from either xbox live or download it from xbox.com and apply it using a usb stick
then flash your drive with the firmware called LTPlus-025v1.91.bin, this firmware is the default firmware for all phat lite on drives now, dont bother trying to read the firmware from the drive after taking the update because you will need a probe 3 to do so
open your dummy firmware as source in jungleflasher which your should have dumped before, if you havent then make sure you dump it from the drive BEFORE taking the latest dash update
open the LTPlus-025v1.91.bin firmware as target firmware, click spoof source to target, save your new custom firmware somewhere
go into the MTKflash32 tab, click lite on erase and follow the instructions that pop up
once you have your drive in vendor mode (lite on erase procedure does this) click write, wait for it to flash the firmware, pop the drive back in your console and your done!
