TLDR: Got the battery replaced, all good!

Like many others, my battery was wrecked after the update, and I was given the 3 options. I chose to get the battery replaced as my phone is working fine, so I don't want to replace it, and I don't want to sign up for random stuff to get the $50 payment.

I called most of the ismash’s in London and only 1 of them had the right battery in stock and unreserved. All the others had loads of 4a’s already booked in. They said I could book in, in about 5 days time. I dropped it off and had it back same day. They weren't able to run their usual test app on my phone as they said the version of android was too old, which might mean if anything is affected by their work, they won't do anything about it. I didn't have to pay anything. The guy at the high st Kensington branch was very good.

Now the battery works way better than I ever remember (probably just as good as new). I will definitely get $50 worth of extra use out of it. I was worried that the battery regulator in the update would not be removed, but because they use your IMEI number, it was.

Any questions please ask!