Rigol’s test gear has something of a history of being hacked. Years ago the DS1022C oscillocope was hacked to increase bandwidth, and more recently the DS1054Z was hacked to unlock licensed features. Now, it’s the MSO5000’s turn.

Over on the EEVBlog forums a group has been working on hacking another Rigol, the MSO5000, a 70 MHz oscilloscope which can be upgraded to 350 MHz via software licensing. Various other features including a two channel, 25 MHz arbitrary waveform generator are also built-in, but locked out unless a license key is purchased. The group have managed to enable all the locked options without license keys.

The hack is quite simple. The Linux system running on the scope has a default root password of, you guessed it, “root”. After logging in over SSH with these credentials, the user just needs to modify the startup file to add the “-fullopt” flag to the “appEntry” application. This starts the application in a fully unlocked state, which gives access to all the features.

The MSO5000 costs about $1000, and the bandwidth option alone adds over $3000 to the price. If you’re willing to risk your warranty, and you have the skills to edit a file with vi, this hack provides a serious upgrade for free.

If you have a DS1022C you’ll find our reporting on its hack here, and likewise DS1054Z owners will find theirs here.

Header image: EEVBlog.