If you have an extra Tivo of the same model you could swap drives after doing a 'clear and delete all' on the donor Tivo before you take it apart. Or can get a fairly cheap 'donor' off of craigslist or eBay, and do the same thing.
I have never done it, but I thought I had read that you can push certain buttons when the Tivo is coming up and make the Tivo go back one version of software. But that would only fix it if the hard drive is OK, but the software is partially broken. Or that is my thinking. But I am not that schooled on all of that.
If it is a dual Tuner lifetime then the going price is over $200 once it is fixed.
I have never done it, but I thought I had read that you can push certain buttons when the Tivo is coming up and make the Tivo go back one version of software. But that would only fix it if the hard drive is OK, but the software is partially broken. Or that is my thinking. But I am not that schooled on all of that.
If it is a dual Tuner lifetime then the going price is over $200 once it is fixed.