In the latest snag for the iPhone 4, AT&T Inc. said on July 7 that a software defect in its network is limiting data uploads from the phone in some areas, reports the Associated Press. That means it takes longer for users to send pictures, video, and other content from the phone. Apple Inc.’s new iPhone 4 went on sale in the U.S. and a few other countries two weeks ago. Last week, Apple acknowledged that holding the phone in a certain way might reduce its wireless performance, and that all iPhones show the wrong signal strength in some situations. Dallas-based AT&T said a software glitch in network equipment made by Alcatel-Lucent is to blame for limiting the upload speeds of the iPhone 4 and said a fix is in the works. Because Alcatel-Lucent isn’t the only supplier of base station equipment to AT&T, the problem only affects customers in some areas. AT&T spokesman Mark Siegel said the flaw affects 2 percent of the phone company’s customer base…
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