Use this tag for questions related to the cellular radio communication in a device (not necessarily the firmware)

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5
votes
1answer
127 views

Determine strength of the cell antenna in an Android phone to ensure good cell reception

In some parts of the world, the cell towers are few and far between. In places like these, when someone is shopping for their next smartphone upgrade, they need to consider cell reception. Boosters ...
2
votes
1answer
2k views

HTC ONE X: The process “com.android.phone” has stopped?

I have just brought a Second had HTC ONE X from an auction site, When booting up the phone it works fine, with no sim card. However I have a 2degrees (New Zealand) Micro SIM which is a snapper sim ...
1
vote
0answers
1k views

Samsung Galaxy S3 “Not registered on network”

It had stock 4.0.4 -> could call. I've flashed FoxHound ROM -> after a while, when I try calling, it says "Not registered on network" . Tried GalaxSim, but everything looks ok. Restored back to ...
0
votes
0answers
23 views

Does 3G has to start and stop with every transmission? (energy overhead)

Does anyone know what has to happen for 3G to send some data (when 3G is on in Android settings, using Nexus 4)? Does it has to initialize somehow at the beginning or to go back to some stable mode in ...
0
votes
0answers
56 views

How to disable/remove ALL cell functionality

I have a Kyocera Event (Virgin Mobile) running stock Android 4.0.4. This is only used as a media player for about 90 minutes ONE DAY per week. I am looking for a good way to extend battery life as ...
0
votes
0answers
1k views

Phone Radio uses 80% of my battery

I have GSam Battery Monitor, and it says that my Phone Radio is using about 80% of my battery. Why is this so high? I usually unplug my phone in the morning at 8AM, and I usually need to plug it back ...
0
votes
0answers
546 views

How do I turn off the cellular radio without disabling mobile data?

I know for some the title is a little contradicting, but here is what I am looking for: I would like to turn off calls and sms, and enable only mobile data (3g). Airplane mode is not good for this as ...