1) Nick a tiny bit of Sugru.
2) Press into annoying logo gap on cell phone.
3) Work in and remove excess by running back of handy pocketknife across surface.
4) Swipe smooth with soapy finger (as mentioned in the Sugru Guru booklet, attached).
5) Let cure overnight.
After step 4, I wished I had taken the case off my phone before step 2, as I couldn't put it back in my pocket. But it cured surprisingly quickly (less than the recommended time).