If you are one of the users who face the SO3 error with their TiVo Setup streaming box, then here are the facile solutions to fix the error.
1. Replacement of the hard drive- To replace the hard drive, we would guide you to buy a ready-to-install and a preprogrammed hard drive for your version of TiVo model. For doing this, you will first require searching the TiVo Activate model on the back side of the TiVo, which will indicate your model by first three digits of the TiVo’s customer service number.
If you still face any tech barrier, you can navigate to TiVo Support for expert assistance and solutions.