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AT&T blames software glitch on slow upload speeds for iPhone 4 users

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AT&T has made an official statement on an issue causing slow upload speeds for some iPhone 4 users. They say it’s due to a software problem and that a fix is in the works.

“AT&T and Alcatel-Lucent jointly identified a software defect — triggered under certain conditions – that impacted uplink performance for Laptop Connect and smartphone customers using 3G HSUPA-capable wireless devices in markets with Alcatel-Lucent equipment,” the company said in a statement. “This impacts less than two percent of our wireless customer base. While Alcatel-Lucent develops the appropriate software fix, we are providing normal 3G uplink speeds and consistent performance for affected customers with HSUPA-capable devices.”

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