I thought I would let others be aware that I had a problem on my otherwise totally reliable S9 after the recent software update (installed May 3rd 2021). This is labelled as a March 23rd update in the software information.
Immediately after the update, the battery life went from 5 days to 5 hours!! In fact the phone casing became warm to touch because the processor was working so hard. After a lot of messing about with settings and clearing Apps caches (esp. Google play store) I finally fixed it by clearing the cache partition on the boot-up menu (which is not easy if you are not especially tech savvy).
Now 3 days later, batter life and consumption back to old levels. So just be aware if you experience the same problem as me. Neil
