Do you have a faulty Liteon DG-16D5S DVD in your Xbox 360? Are you swapping your drive to another console and are unable to program your firmware due to write protection being ena bled ?  

The Matrix Glitcher V1, adds full support and compatibility for 250 GB Corona (V1) and 4 GB Corona (V2) consoles.
As with the previous version the Matrix Glitcher II is still a complete plug and play solution. No need to program it before use, simply install it and select the correct switch combination for your console.

Matrix NAND Programmer for Xbox 360
 

Matrix Freedom PCB is perfect replacement for all LiteOn DG-16D4S mainboards (produced before 31.07) 

Fits all Liteon DG-16D4S Drives