I did the Metro PCS software update to MS50010i and lost root. I used the root method Tokenpoke (not his root method or work FYI) suggested we use and works. I tried to use that method to root again and I didn't root. I also tried MotoChopper and it also didn't root. I rooted my updated phone with the Saferoot: Root method which is on the LG Optimus F3 root section. Hopefully this helps for anyone who lost root after Metro PCS update.