Last week, owners of the Nexus S became the first users around to make the upgrade to Ice Cream Sandwich via OTA distribution, rather than by flashing a custom ROM. Some reports, though, suggest that things aren’t going as smoothly as possible, and power-related issues may be causing Google to modify its distribution plans.
Users are reporting an odd behavior where they receive a notification that an update is ready, and download the update successfully, only to have the process stop and inform them that their phones are already up-to-date at the last moment.
A message on Google’s help forums received a response from a company employee, explaining that if users saw update notifications but cannot currently install it, it may be due to Google pausing the update in that area “while we monitor feedback”. Just what feedback is being so carefully analyzed isn’t spelled-out, but there’s speculation from users who have completed the update only to see their phones exhibit heavy CPU use and decreased battery life that it may be related to Ice Cream Sandwich’s power demands. Not everyone who’s managed to update has had these kind of problems, so maybe Google’s looking for the specific circumstance under which such issues arise.