Update: Brown’s report has proven to be completely false. AnandTech has posted a lengthy explanation as to why Brown’s report is patently false –
“Apple doesn’t limit cellular data throughput on its devices — there’s both no incentive for them to do so, and any traffic management is better off done in the packet core of the respective network operator rather than on devices. Sideloading tweaked carrier bundles isn’t going to magically increase throughput, either.”
Brown’s original report has since been deleted and he has resigned from his post.
Over the last few years, cellphone carriers have become notorious for throttling iPhone users’ data speeds. Most of the time carriers claim they only throttle users when they’re consuming way too much data, but that actually might not be true at all.
Joseph Brown, the guy who made all the iPhone carrier hacks for Sprint, AT&T, Verizon and T-Mobile has thinks he has proof that AT&T, Verizon, and Sprint have all worked with Apple to bake a soft throttle into your iPhone via carrier updates, and there’s nothing your can really do about it.
Here is Brown’s evidence from his report: