The SPUTNIK360 Unlock Probe PCB Addon has been designed so that you never have to solder/unsolder the trace cut again. At the moment when using a Sputnik Probe you have to repair the trace when you have finished programming, and if you ever need to flash the drive again you would have to de-solder. This simple PCB addon enables you to solder the board once and then that's all you will ever need to do. The simple switch will open / close the circuit and there is an extra large pad to use when probing for when you need to unlock the SPI. Yet another simple and useful device from Team Xecuter. � Open / Close trace cut without further soldering � Large pad for easy probing � Easy to install - takes minutes ! NOTE: This is NOT the SPUTNIK360 - Liteon DG-16D4S DVD Unlock Switch, this is an addon product for the SPUTNIK360 PROBE and will not unlock the SPI without the use of the Probe.