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I'm looking for an app that'll switch to 2G only after a few minutes of inactivity. The idea seems simple enough, but I can't find it.

JuiceDefender just disables the data connection, and re-enables it every 5-15 minutes. But that's a bit too restrictive for me.

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Use Tasker… It supports all such type of automations.. – Evil Angel Mar 13 '12 at 13:37
AutomateIt is a free alternative to Tasker which has similar utilities: – Chahk Mar 13 '12 at 14:03
my phone/provider seems to do this automatically. most of the time it is connected via 2g. when surfing to a new page it switches to 3g and after some inactivity it goes back to 2g. – k3b Mar 13 '12 at 22:07
Tasker is able to do it, but only on Cyanogen. – skerit Mar 14 '12 at 11:04

JuiceDefender can do this. It also can turn off data completely, and turn it on every 5 minutes or so to let stuff sync.

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Can the free edition do this? And an unrooted device? Because I can only choose to turn it off, not switch to 3G. – skerit Mar 14 '12 at 11:04
@skerit: Yes, the free version on an unrooted device can also work to turn of data. – SamSPICA Apr 13 '12 at 10:23

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