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Interesting for carrier nerds

xenadu

By xenadu
in Apple/iPhone/iOS

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xenadu Member Level: 1x Advanced

xenadu

Posted
Posted

http://9to5mac.com/2012/09/30/verizon-iphone-5-carrier-update-to-eliminate-data-usage-while-connected-to-a-wifi-network/

 

I know this concerns Verizon, but I found a couple of interesting things in the story:

 

- the Carrier line in About that says Sprint 13.0 is the version of the carrier profile/settings file

- you can tap on that line to cycle through your PRL version, ERI, NAI, and MSID.

- this file can be updated OTA. Presumably during normal usage it just silently updates next time you restart the device or whatever

- going to the About screen checks for an update

- apparently the carrier file can also specify network priority and routing settings - presumably this bug had the cellular interface set to a higher priority than the WiFi interface... Speculation is that it may have had the flag set to allow cellular when connected to WiFi, a feature pulled from the beta that was designed to prevent an interruption when the WiFi network was having issues by falling back to cellular data... But we don't know.

 

 

 

 

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S4GRU Member Level: LTE Advanced

S4GRU

Posted
Posted

Wow, when you are on a tiered data plan with caps, this is a big deal. Ouch.

 

Robert via CM9 Kindle Fire using Forum Runner

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