About two years ago, I dropped my Nexus 4 and shattered the screen. It no longer registered touches and is unusable. I'm finally getting around to recycling all of my busted electronics, and I realized that this device still has all of my personal data on it, and I'm pretty sure it wasn't encrypted. I'd like to factory reset my device, but I can't actually interact with the phone's OS to do that. Removing the SD card would also probably be an acceptable option as a last resort.
If it matters, I bought it unlocked and used T-Mobile's prepaid service.
Any ideas?