iPhone Atlas

A number of complaints regarding the iPhone 3GS' battery have surfaced on Apple's discussion board since the handset's June 19 launch. Given Apple's promises of a faster and longer lasting iPhone, it's understandable that 3GS users, particularly those who have made the jump from the previous models, have higher expectations.

Preliminary battery testing on our iPhone 3GS review model showed positive results, but we won't know the whole story until CNET Labs finishes its tests. Until that time, I can offer tips on making your iPhone battery last. They can be used individually or in combination to best suit your own needs. Some of these ideas are even recommended by Apple and some of them we've mentioned on iPhone Atlas before.

Reset iPhone
In addition to resolving signal strength problems, resetting an iPhone can fix a faulty battery indicator and end applications that are improperly consuming the battery. Hold down the home and sleep buttons simultaneously until you see the white Apple logo indicating that your iPhone has restarted.

Restore with original settings
You can restore your iPhone by launching iTunes and selecting the Restore option on your iPhone's Summary page. This process will erase your iPhone's software and data, including all settings. You can restore them later via iTunes.

Drain the battery completely
Instead of charging it midway through a battery drain, add more juice only after the battery dies completely. A full drain may reset circuitry that prevents a full charge from occurring, despite indication of a full charge.

Force quit applications
If an application quits unexpectedly and you begin to notice poor battery life, relaunch the application, then force quit it by following the directions in this post. This can eliminate problematic or hung processes that might be draining the battery.

Lock your iPhone
Make sure that your iPhone goes to sleep automatically when not in use. You always can press the Sleep/Wake button, but even better is the Auto-Lock feature in the General section of the Settings menu.

Auto lock screen

(Credit: David Martin)

Applications
Apps that keep the display from dimming or shutting off and that prevent your iPhone from sleeping can reduce battery life. This is particularly true for apps that use location services and push notifications. You can turn off Location Services in Settings > General menu. You'll have to deactivate Push Notifications for each app individually, also in the Setting menu.

App Push Notification settings

(Credit: David Martin)

Location Services toggle

(Credit: David Martin)

Push and Fetch

(Credit: David Martin)

Toggle e-mail account on/off

(Credit: David Martin)

Delete e-mail account

(Credit: David Martin)

Airplane mode
Even it you're not flying, use the airplane mode while listening to music, watching a video, working in your favorite productivity app, or whenever you don't want to be disturbed. Also, since constantly seeking a cellular connection also drains the iPhone's battery, the airplane mode is useful if you're in an area with poor cellular coverage.

Airplane mode

(Credit: David Martin)

Reset network settings
Restarting your phone will delete any stored Wi-Fi passwords, DNS settings, and more. And in some cases it also can resolve signal strength issues. Find it in Settings > General > Reset > Reset Network Settings.

Reset network settings

(Credit: David Martin)

Turn off Wi-Fi and/or Bluetooth
Be sure to turn off these features when not in use. Go to Settings > Wi-Fi and set Wi-Fi to Off. Go to Settings > General > Bluetooth and set Bluetooth to Off.

Toggle Wi-Fi

(Credit: David Martin)

Toggle Bluetooth

(Credit: David Martin)

Turn off 3G
The iPhone's 3G radio consumes a lot of juice so turning if off will save power. Go to Settings > General > Network and toggle Enable 3G to Off. You'll be able to make and receive calls and access some data while 3G is off, though your iPhone will run on the slower EDGE or GPRS 2G network.

Enable/Disable 3G

(Credit: David Martin)

Adjust brightness
Dimming the screen definitely can extend battery life. Go to Settings > Brightness and drag the slider left to lower brightness or right to increase brightness until you reach your desired settings. Turning off the Auto-Brightness settings also will help.

Brightness settings

(Credit: David Martin)

Turn off the equalizer
Just like on the iPod, this feature can reduce battery life. Go to Settings > iPod > EQ and select Off. Yet, since EQ settings in iTunes migrate to the iPhone, you'll have to override those settings and set the iPhone to Flat. Go to Settings > iPod > EQ and select Flat.

iPod EQ settings (Credit: David Martin)

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iPod EQ options (Credit: David Martin)

More help
If you're worried about your iPhone 3GS being defective, according to HardMac there is Apple's Procedure for Users Experiencing Short Battery Life with the iPhone 3G S. Also, if you're still experiencing severe battery problems after trying some of these tips, it might be time to take a trip to your local Apple Genius Bar.

Personal experience
So far, my personal experience has been that my iPhone 3GS lasts a bit longer than the iPhone 3G, particularly after I tuned the iPhone 3GS' features to meet my personal needs. Yet, it still doesn't last more than a day with heavy use, unlike other smartphones.

One typically intense day started at 100 percent battery capacity at 5:00 a.m. The battery then dipped to 80 percent at 9:30 a.m., 64 percent at 12:30 p.m., 39 percent at 3:30 p.m., and 25 percent at 6:30 p.m before showing the 20 percent battery warning at 8:30 p.m. With my iPhone 3G, I used to get that warning prior to 6:30 p.m. And after tweaking my iPhone 3GS using the tips below, the battery showed 49 percent capacity after 15 hours of heavy use. That's not bad for smartphone battery performance.

Are you experiencing problems with your iPhone battery? Got some tips to share that might help conserve battery life? What kind of activities do you do on your iPhone that deplete the battery faster? Let us know in the comments.

Apple on Friday upped its stake in U.K. chip company, Imagination Technologies.

The company purchased 2.2 million shares at 1.43 British pounds ($2.36), for a total cost of 3.14 million pounds ($5.19 million). The purchase brings Apple's stake in the company to 9.5 percent, effectively tripling its ownership in Imagination, according to a report on MocoNews.

Apple uses Imagination's SGX GPU in the recently released iPhone 3G S, allowing it to have much better graphics using Apple's OpenGL ES 2.0, according to AppleInsider. Samsung is reportedly integrating Imagination's technology into system-on-a-chip devices.

OpenGL ES 2.0 is a cross-platform API that allows for 2D and 3D graphics on embedded systems. IT essentially creates a low-level interface between the software and graphics hardware system.

The iPhone, of course, is more than the sum of its parts, but the cost of individual components adds up--to $178.96, to be exact.

A new analysis by iSuppli details the cost of the iPhone 3GS and the motley collection of chips inside.

The entry-level (16GB) version of the iPhone 3GS carries a BOM (bill of materials) cost of $172.46 and a manufacturing expense of $6.50, for a total of $178.96, said Andrew Rassweiler, director and principal analyst, teardown services, for iSuppli, in a statement.

Apple iPhone 3GS major components and cost drivers

(Credit: iSuppli)

Service providers are paying more for the low-end iPhone 3G S than the original iPhone 3G, according to Rassweiler. "Although the retail price of the 16GB iPhone 3GS is $199, the same as for the 8GB version of the original iPhone 3G, the actual price of the phone paid by the service provider is considerably higher, reflecting the common wireless industry practice of subsidizing the upfront cost of a mobile phone and then making a profit on subscriptions," he said.

And what are the major cost drivers? The 16GB flash memory chip is the priciest at $24--and reflects the rising cost of flash chips due to supply constraints, according to iSuppli. This part is also available from Samsung. So there could be some second-sourcing (sourcing the part from a second chip supplier) in the future.

The next rung in the cost ladder is the 3.5-inch display module and touch-screen assembly, at $19.95 and $16, respectively.

Below this, is the main Samsung applications processor. Priced at $14.46, it is the fourth most costly component in the iPhone 3GS. ... Read more

Though everyone knows the iPhone OS 3.0 brought welcome and long-awaited changes like multimedia messaging; a landscape keyboard; and cut, copy, and paste, there are a host of other tweaks from the software update that Apple has not publicized. According to Apple, the update offers 100 additions to the iPhone, but we covered just a handful in our iPhone 3GS review.

What other features are new? Well, a week after Apple released the update to the world we have a better idea. We've done our own exploring, but last week we also asked for your help in finding the update's hidden treasures. Thankfully, you responded in force, so we're glad to offer you this list. It's still not complete, so we'll be adding more as we (and you) find them. (Note: I've only included features not listed in the review.) Also, Apple has posted a handy chart detailing which OS 3.0 features are available on the iPhone Classic and iPhone 3G.

AT&T is upgrading its network and using 850MHz spectrum to beef up its 3G wireless network, which should help alleviate dropped calls and slow network connections for iPhone 3G and iPhone 3G S users.

Apple said this week that it sold more than a million of the iPhone 3G S model worldwide this past weekend after the phone went on sale Friday. Exactly how many of those phones were activated on AT&T's network in the U.S. isn't yet known, but the addition of more data intensive iPhones is likely to put a strain on the carrier's network.

That said, AT&T spokesman Mark Siegel told the blog Gearlog on Tuesday that the company is ready for the onslaught of new iPhone users. One of the things it has been doing to prepare is upgrading its network so that it can offer 3G wireless service using its 850MHz spectrum licenses. For the most part, AT&T has been using spectrum in the 1900 MHz band to deliver its 3G services, which have become saturated, Gearlog explains. This means that as AT&T sells more 3G devices, such as the iPhone, it has been cramming more users into an ever more crowded spectrum band.

This could explain why some users have complained of dropped calls and slow Net connections using the iPhone 3G, an issue that CNET News pointed out nearly a year ago after the iPhone 3G was launched. The problem has been particularly acute in large cities, such as New York and San Francisco, where there is a concentrated base of iPhone users and where the 1900MHz spectrum is predominant.

Siegel says that upgrading equipment to allow AT&T to use its 850MHz spectrum for 3G services should help relieve some of the congestion issues. Because the 850MHz spectrum is at the low end of the frequency band, it is able to travel longer distances and penetrate walls more easily than signals on the 1900MHz band.

When asked about problems with dropped calls for iPhone 3G users a year ago, Siegel told CNET News that the company had been working to expand the portion of its 3G network that runs on the 850MHz band. Back then he downplayed the need for adding 850MHz spectrum for 3G services by saying that it "doesn't mean you can't get a good experience on 1900MHz."

Now Siegel thinks that adding 850MHz will make a big improvement, according to the Gearlog story.

"The 850, when it's turned on in individual markets, people notice a big difference," he is quoted as saying.

In addition to adding 850MHz 3G service, AT&T has also been making other improvements to its network, such as upgrading to the next iteration of HSDPA technology, which is expected to double download speeds on AT&T's network.

If you're lucky, you might be able to pocket as much as $200 in profit on your old iPhone.

If you're among those lucky few who are eligible to upgrade to an iPhone 3G S without paying full retail pricing, here's good news: you can sell your old iPhone 3G and walk away with some extra cash.

Let's say you have the 16GB model. A quick check of Craigslist and eBay shows that the going rate for a mint-condition 16GB iPhone 3G is around $400.

Now, it doesn't take a math whiz to figure out that if you buy a 16GB iPhone 3G S for $200, you'll walk away with a $200 profit. Grab the 32GB model and you make $100. Not too shabby, eh?

Of course, with the sudden glut of used iPhones out there, you may have a tough time finding a buyer. If you'd rather not deal with the hassles (and potential wait) of selling to another individual, consider selling to a service.

iPod fix-it shop Rapid Repair, for instance, has an iPhone buyback program that's currently offering $230 for an 8GB iPhone 3G and $270 for the 16GB model. It'll even pick up the cost of shipping.

I also got an online quote from used-gadget buyer NextWorth, which offered about $220 for my 16GB 3G.

Used-gadget buyer NextWorth will give you a decent price for your used iPhone 3G.

Sadly, I'm not eligible for upgrade pricing until 2047, or something ridiculous like that. (Thanks, Apple!) So I haven't been able to put any of these methods to the test. If you have, be sure to leave a comment detailing your experiences.

If you do decide to sell your old iPhone, here's some advice from resident forensics expert Jonathan Zdziarski: 1) Pull the SIM card. The new owner won't be able to use it anyway. 2) Erase the phone by tapping your way into Settings > General > Reset > Erase All Content and Settings. Make sure to keep the phone plugged in, as this process can take a couple hours to complete.

(Credit: Apple, Inc.)

• Reset your iPhone by holding down the sleep and home buttons until the Apple logo appears.
• Restore your iPhone: In iTunes, click the Restore button under the Summary tab. Restoring the phone will erase contacts, calendars, photos, and other data on the phone, but will restore automatically backed-up information including text messages, notes, call history, contact favorites, sound settings, widget settings, etc.

However, some issues chronicled below persist:

Visual Voicemail wasn't accessible by many users from their iPhone 3G S after restoring from a previous model's backup. Users are required to reenter their voicemail pins when prompted by the iPhone 3G S. If you've forgotten your pin, you can reset it by taking the following steps:

• Log onto AT&T myWireless
• Click on Phone/Device
• Click on Reset Voicemail Password
• Press the Submit button

A text message is sent to your phone with a new Visual Voicemail password.

Passwords previously saved for numerous applications were reported lost in the transfer to the iPhone 3G S. Users had to reenter passwords for a number of apps, including (but not necessarily limited to) AIM, LogMeIn, Loopt, MySpace, Palringo, Sirius XM, Tweetie, and Wallet. (Wallet's database had to be recovered from MobileMe). The password recovery problem is likely attributable to the hardware change from a previous iPhone to the iPhone 3G S.)

Compass has to be reset periodically when it struggles with interference, which happens often enough that iPhone 3G S users are complaining about it. Apple offers some information about calibrating Compass on its Web site, as well as in a support document, iPhone 3G S: Re-calibrate Compass. These explain that the recalibration isn't always necessary; sometimes you need to just ignore the recalibration messages while Compass self adjusts.

Compass calibration message

(Credit: David Martin)

The iPhone 3G S' Oleophobic screen coating is rumored to be incompatible with screen protectors, so we called several Apple stores to investigate and were told this isn't true. The sales associate said that we could come into any Apple store and purchase a screen protector for the iPhone 3G S. Protectors for the 3G should also work on the 3G S.

Duplicate Contacts are being reported by a number of users on Apple's discussion boards. We stumbled upon a nice explanation for and solution to this problem in this article: "About duplicate contacts and calendars on iPhone [OS] 3.0," via Mac OS X Hints.

Find My iPhone remembers all your devices, including the old iPhone that you just turned off when you upgraded to a new handset last weekend. MobileMe does not appear to support a mechanism that will allow you to remove the tracking of an iPhone or iPod Touch from Find My iPhone. We contacted Apple through MobileMe support via online chat and asked about this.

According to Apple tech support, removing a device from the list involves sending the device a Remote Wipe command. MobileMe will then attempt to send this command for up to two hours and if unable to contact the selected device, it is deleted from Find My iPhone. This information is contrary to the Apple support document, "MobileMe, iPhone OS 3.0: Troubleshooting Find My iPhone and Remote Wipe" which states:

Previously-owned iPhone/iPod Touch appears at me.com/account
If your iPhone/iPod Touch was configured with your MobileMe account, it may still appear when you log in to www.me.com/account, even if you no longer possess the iPhone/iPod Touch. Currently, a device is removed from your account page list only after it is successfully wiped. This article will be updated as more information becomes available.

Note: we think the last sentence points out that Apple is aware of this bug in Locate My iPhone and will announce a fix later. Following the advice given in the online chat wasn't successful. Nearly 12 hours later, the old iPhone 3G status is still pending a remote wipe in our test. We hope Apple will release a fix for this through the MobileMe Web site.

Wi-Fi connectivity and signal strength complaints have also cropped up after the iPhone OS 3.0 update: some users complain that their phones drop them from Wi-Fi unexpectedly, others that they can't connect at all. Some users have been able to resolve their connectivity problems by going to Settings > General > Reset > Reset Network Settings, while others complained that this simple fix does not work. In the latter case, a restore might be necessary.

Settings > General > Reset

(Credit: David Martin)

Troubleshooting tips

Force Quit has changed in iPhone OS 3.0 for the iPhone 3G S but remains the same for older iPhones that do not support Voice Control. In order to force quit an application, you must:

• iPhone 2G/3G: Press and hold the Home button for a few seconds until the app quits. (Valid for iPhone OS 1.0, 2.0, and 3.0.)
• iPhone 3G S: Press and hold the Sleep/Wake button until the "Slide to power off" screen appears, then press and hold the Home button until the app quits (usually within 6 seconds).

Apple has recently updated the following support documents that might also be useful if you encounter problems with your iPhone:

• "iPhone Basic Troubleshooting"--some iPhone basic troubleshooting tips.
• "Troubleshooting applications purchased from the App Store"--Try the following troubleshooting steps on your iPhone or iPod Touch in order to resolve an application's issue.
• "Troubleshooting iPhone and iPod Touch contact and calendar syncing via USB on Windows"--If you're having difficulty syncing your contacts or calendars to iPhone or iPod Touch with iTunes for Windows via USB, this article can help. Note: this article does not apply to wireless syncing with Exchange ActiveSync or MobileMe.

Some users also might consider following the Apple iPhone Troubleshooting Assistant before calling AppleCare or visiting the local Genius Bar.

Tell us about your iPhone OS 3.0 or iPhone 3G S upgrade problems in the comments.

Apple is reportedly offering iPhone 3G S buyers a $30 iTunes Store credit for activation delays.

(Credit: Apple)

iPhone 3G S buyers are still experiencing delays activating their new smartphones, but Apple apparently wants to make it up to them.

Apple began notifying affected customers via e-mail on Sunday that they may experience additional delays for another two days due to "system issues" and "high activation volumes," according to readers in various blogs who claim to have received the e-mail.

The problems began immediately after the new iPhone's launch Friday.

As a way of apology for the delays, the same e-mail said Apple plans to offer customers a $30 credit iTunes Store credit for "the inconvenience this delay has caused."

Here's the entire text of the e-mail:

Dear Apple Customer,

Thank you for your recent Apple Store order. We appreciate your patience and apologize for the inconvenience caused by the delay in your iPhone activation.

We are still resolving the issue that was encountered while activating your iPhone with AT&T. Unfortunately, due to system issues and continued high activation volumes, this could take us up to an additional 48 hours to complete.

On Monday, you'll receive an email from Apple with an iTunes Store credit in the amount of $30. We hope you will enjoy this gift and accept our sincere apologies for the inconvenience this delay has caused.

Thank you for choosing Apple.

Sincerely,
Apple Online Store Team

Apple representatives did not immediately respond to requests for comment.

During last July's iPhone launch as new customers tried to complete the required in-store activation process, overloaded AT&T activation servers slowed Apple Store lines to a crawl, and the servers eventually crashed altogether. Apple soon ditched the in-store activation and was simply "unbricking" phones, letting buyers activate them at home rather than hold up the line because of crashed servers.

In stark contrast to the frenzied first day sales of the original iPhone and last year's iPhone 3G, Friday's launch was marked by considerably smaller and quieter crowds for the smartphone's debut.

One analyst expected Apple to sell 500,000 iPhones this weekend. That's half as many phones as Apple sold when it launched the iPhone 3G, but Apple sold that phone in 21 countries on the first day. In comparison, the iPhone 3G S was sold in only eight countries on its first day.