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[Q] Cell standby using battery

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By klong81506, Member on 27th July 2011, 10:54 PM
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Since rooting my Nook touch I have had it on for 6 days. I checked the battery usage and it tells me that "cell standby" is using 87% of the battery and "phone idle" is using 12%.

Anyone ideas on how to disable those functions?

Perhaps airplane mode would disable those, but I don't know how to enter airplane mode. I do have nook color tools installed.


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Last edited by klong81506; 27th July 2011 at 10:58 PM.
 
 
28th August 2011, 11:23 AM |#2  
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I tried the airplane mode as someone suggested but i still saw cell standby and phone idle.

Sent from my CM7.1 NookColor
28th August 2011, 03:34 PM |#3  
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I actually ended up unrooting precisely due to this... I'm researching and trying to figure out a way to root w/o installing things that consider the nook as a phone... A custom rom is being produced on this thread.... Hopefully it will be a lot more close to a reader than a phone: http://forum.xda-developers.com/show....php?t=1208024
spurcity281
30th September 2011, 03:10 AM |#4  
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Has Anyone found a solution for the cell-stand-by problem?
30th September 2011, 06:13 AM |#5  
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You can delete /system/app/phone.apk and telephonyprovider.apk,then phone idle will disappear.
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1st October 2011, 04:33 AM |#6  
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Quote:
Originally Posted by yohoc

You can delete /system/app/phone.apk and telephonyprovider.apk,then phone idle will disappear.


"failed on 'Phone.apk' - Cross-device link"
1st October 2011, 05:54 AM |#7  
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I delete it in rootexplorer.
1st October 2011, 12:47 PM |#8  
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I'm wondering, Phone.apk and TelephonyProvider.apk are already installed in an unrooted nook, aren't they ?

BTW, there is a script here for the Nook Color, it should work for the Nook 2.

But I don't know if it will have a real effect on battery life or not ...
11th November 2011, 04:45 PM |#9  
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Thanks!
Quote:
Originally Posted by yohoc

You can delete /system/app/phone.apk and telephonyprovider.apk,then phone idle will disappear.

I just changed the file extensions, as mentioned in the "[script] remove cell service" thread, also seems to work.
12th November 2011, 05:51 PM |#10  
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IMO, both "cell standby" and "phone idle" and just about all actions that nook does when it is in sleep mode. Removing these apk's however helps just a bit because there are none useless phone apps running in background, but there still will be "cell standby" thing in battery stats.
19th January 2012, 05:42 AM |#11  
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Quote:
Originally Posted by domi.nos

IMO, both "cell standby" and "phone idle" and just about all actions that nook does when it is in sleep mode. Removing these apk's however helps just a bit because there are none useless phone apps running in background, but there still will be "cell standby" thing in battery stats.

I just made the change, and actually, it's "Phone idle" that's still in the stats. "Cell standby" which was using about three times as much juice as "Wi-fi" and "Phone idle" combined, is now gone, and so I'm hopeful for improved battery life.

I think, BTW, that the "Phone" in "Phone idle" doesn't refer to the actual phone app--the name probably actually means "Device idle".

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