3/19/2023 0 Comments Ios8 carrier bundle files![]() To make sure you don’t inadvertently accrue any of these charges, you’d like to turn off all data services for the duration of your trip, but still retain the ability to use your phone for calls and messages. Why might you want to do this? Because, if you are in a foreign country, your carrier typically charges exorbitant rates for data network access (although buying a discount package in advance can help keep these costs down). By this, I mean turning off all non-Wi-Fi Internet access, both EDGE and 3G. I am going to focus on just one: disabling data services. Still, there are carrier settings edits you can usefully make. If the ATT_US.ipcc file is grayed out in the Open dialog, quit iTunes. This is not always required, but worth doing, just in case. Here you should find a file named ATT_US.ipcc. From the Open dialog that appears, navigate to the ~/Library/iTunes/iPhone Carrier Support folder.(Note: In my testing, I got the same end result here if I clicked Restore instead of Check for Update.) From the phone’s Summary screen in iTunes, hold down the Option key and click the Check for Update button. If so, a sure solution is to reinstall Apple’s latest carrier settings update: Or maybe you modified the carrier settings in some way and want to return to the defaults. Suppose you have symptoms that suggest possible trouble with your carrier settings (such as a continuing and otherwise inexplicable inability to access your carrier’s data networks). Read more… Reinstall a carrier settings update How to do all of this, and why you might want to do it, is the subject of this article. In particular, you can custom reinstall, directly view and even modify your carrier settings. Yesterday there were some allegations made about whether Apple is intentionally throttling cellular data throughput on iPhones and iPads via some files used for network provisioning.As it turns out, there’s more you can do with carrier settings than just download and install the latest update. T he original source post has since been deleted, so I am linking to the always-awesome Tmonews instead. The reality is that this is simply not the case. 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.Īt a high level, some of this seemed plausible at first, as this wouldn't be the first time that a handset maker throttled devices via some on-device setting at bequest of a network operator. If you've been with us long enough you'll probably remember the case of the HTC Inspire 4G and Atrix 4G, two handsets which AT&T disabled HSUPA on, and later re-enabled with an update. Later there was the AT&T Nexus S which also had its HSDPA and HSUPA categories limited via build.prop. ![]() Thankfully this is not the case currently with any iOS devices. There's no arbitrary capping of UE Category (User Equipment speed category), throttling on-device, or anything else that would prevent the device from attaching and taking full advantage of whatever the network wants to handshake with. If you're going to read anything, just take that away with you, as the full explanation gets technical fast. If you're willing, however, let's walk through it.įirst, what is an IPCC or "Carrier Bundle" in the context of iOS? In order to support a huge number of mobile networks, Apple builds these bundles which contain settings used to provision and optimize the device for a particular network in collaboration with the respective network operator. These then get distributed inside a particular iOS release, or asynchronously via iTunes or over the air if they need to make updates as necessary. pri files for defining things unique to each network. There are also PNG images for the operator logo at top left with appropriate tweaks to character kerning and appearance. ![]() Pri files are settings which define relevant network parameters for both iOS and the baseband. This spans the gamut from parameters like APNs that the phone should use, short codes (USSD codes) for checking balance or data use, credentials for WiFi networks that the mobile network operator runs to do offloading, to MMS settings such as payload size, address, and recipients, or tethering and visual voicemail settings. They also do contain lower level things such as band priority, configuration for UE category, and other network access settings. This is also where the "4G" indicator and 3G toggle settings are changed (see the above "DataIndicatorOverride" line), if you remember that whole situation.
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