![]() To jump ahead of myself, the solution once again was to delete corrupt Safari bookmarks, but what’s easy on a Mac is often difficult or even impossible in iOS. Despite this, they’d never caused problems in previous versions of iOS. Since I don’t really use Safari, I’d never worried about the fact that the bookmarks had been imported from multiple other systems years ago and horribly duplicated through who knows what syncing services. ![]() When I investigated my Safari bookmarks, I discovered they were a total mess. The solution in that case was to delete the corrupt Safari bookmarks locally, such that a new version came down from iCloud, and all was well. This jogged my memory - corrupt Safari bookmarks syncing to iCloud had previously caused problems for my MacBook (see “ Solving iCloud-Related Slowdowns in Lion,” 16 February 2012). When I tapped Settings > General > About > Diagnostics & Usage > Diagnostics & Usage Data, I saw what must have been hundreds of crash logs for a process called webbookmarksd, starting at the point I enabled connectivity for the iPhone 5. Some research on the Internet showed that lots of people were experiencing the problem, though it certainly wasn’t ubiquitous.Īfter reading a variety of discussions, I came across what turned out to be the key clue. Over the next few days, I watched the battery drop incredibly quickly, sometimes as much as 10 to 20 percent per hour. I walked out with a fully functional iPhone 5 whose setup was identical to my previous iPhone 4… including the battery drain. As is always the case at the AT&T store in Ithaca, the staff were friendly and helpful (and the guy who helped us said he had received quite a number of calls about iOS 6 causing problems that required restoring, though battery life issues were not among them). The iPhone 4’s battery continued to drain quickly - to the point where I had to charge it in the car on the way to the AT&T store so I’d have enough power to use it in the store. When FedEx delivered my iPhone 5 on Friday, I immediately restored my latest iPhone 4 backup to it, but I couldn’t really use it until I could visit the AT&T store on Saturday to transfer my phone number. ![]() I was busy, and decided to ignore the problem briefly, since I knew I’d be switching to the iPhone 5 when it arrived a day later. Clearly iOS 6 was involved in some way, but troubleshooting anything in iOS is difficult, and something like poor battery life is especially hard, since it can take hours to determine if a fix has worked. My iPhone 4’s battery had been slowly getting worse due to age, but back in April I had replaced the battery with a new one from iFixit and battery life had immediately sprung back to normal. I was somewhat distressed the next day to receive the 20-percent battery life remaining notification - at 1 PM on a day when I’d done almost nothing with the iPhone! Like millions of other people, when Apple released iOS 6 on 19 September 2012, I immediately updated my iPhone 4. #1626: AirTag replacement battery gotcha, Kindle Kids software flaws, iOS 12.5.6 security fix.#1627: iPhone 14 lineup, Apple Watch SE/Series 8/Ultra, new AirPods Pro, iOS 16 and watchOS 9 released, Steve Jobs Archive.#1628: iPhone 14 impressions, Dark Sky end-of-life, tales from Rogue Amoeba.#1629: iOS 16.0.2, customizing the iOS 16 Lock Screen, iPhone wallet cases, meditate for free with Oak.#1630: Apple Books changes in iOS 16, simplified USB branding, recovering a lost Google Workspace account.
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