Default Fast Dormancy Setting ATT GS2

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I have the international version which defaults to "enabled." I was curious what the AT&T network engineers set their version at as I am on AT&T's.

This works on the international version and hopefully it does on AT&Ts
1: Dial *#9900#

You will have the option on the screen to enable/disable the setting.

There is much debate on the international forum on the impact of this setting to data speeds/battery life on different carriers.

Thanks in advance!

My option is to enable. So I am assuming that it's disabled.

Originally Posted by sklinger

I have the international version which defaults to "enabled." I was curious what the AT&T network engineers set their version at as I am on AT&T's.

This works on the international version and hopefully it does on AT&Ts
1: Dial *#9900#

You will have the option on the screen to enable/disable the setting.

There is much debate on the international forum on the impact of this setting to data speeds/battery life on different carriers.

Thanks in advance!

Originally Posted by tycon

My option is to enable. So I am assuming that it's disabled.

the same here

Yup, seems disabled by default. I believe AT&T's network doesn't support FD.

from what I understand that the Apple's IOS 4.2 has built in FD that prolong the life of the battery on AT&T's network.

Engaget Article on IOS 4.2 and FD

To avoid this, AT&T researchers (again in collaboration with the University of Michigan colleagues) are proposing Tail Optimization Protocol (TOP), which implements fast dormancy using a simple interface that coordinates among currently running apps before demoting the device.

http://www.research.att.com/articles...id=gN0JMJ3DvMk



But as to WHICH type of fast dormancy the phone support is beyond my knowledge

I will try to do some testing and report back to see with it on and off and how it affects my data speeds and battery life and will try to report back...

I'm running checkrom, dd 2/7, and kj1 modem and mine was enabled by default.

Sent from my unf#cked att sgs2

I get the following when I try that #
"Connection problem or invalid MMI code"

It seems like changing it in that menu does nothing - however, whether it is enabled or disabled by default may matter. Hellraised I9100 firmwares seem to almost always provide better battery performance with the UCKH7 modem than I777 firmwares, and FD might be part of the reason why.

UCKK6 modem had power consumption issues for me. Drain at my desk (weak signal) was higher for the UCKK6 modem than UCKH7 running on a device with a permanent wakelock held! (A bit under 1%/hour for UCKH7 normal operation, around 1.2%/hour for UCKH7 modem + wakelock and for UCKK6 + no wakelock) All of these are on XWKL1 system base running recent Daily Driver kernel releases.

Originally Posted by dragon_99

I get the following when I try that #
"Connection problem or invalid MMI code"

Are you using a 3rd party dialer like go dialer? The codes only work on the stock dialer.