[HowTo]Network Setting Change 2g/3g
How to unlock settimg for 3g and 2g on Atrix 2:
*Disclaimer * The publisher is not responsible for any damages to the phone. This modification has been verified, but please do approach this tutorial with caution.
+You must be rooted+
Read first, Do later.
If you do not understand what is going on in tbis tutorial, then it will be extremely risky to proceed.
Setting: - Unlocks the mobile networks, 'Select network' and 'Operator selection
Code: <boolean name='network_select_menu' value='true'/>
1) Edit the following files:
/system/etc/motorola/com.android.phone/defaults.xml /data/data/com.android.phone/shared_prefs/settings.xml /data/data/com.android.phone/shared_prefs/com.android.phone_preferences.xml /data/data/com.android.phone/shared_prefs/_has_set_default_values.xml
2) When I initially tested, I found that the files would revert to their original state after rebooting, but on http://forum.xda-developers.com/show....php?t=1108181
member liranm2 states that YOU MUST DELETE THE BACKUP XML FILES THAT ROOT EXPLORER CREATES.
3) Reboot phone.
In summary, the above changes provide un-greyed options under Settings, Wireless & networks, Mobile networks as follows:
1) Select network 2) Operator selection
'Select network' provides the following options:
2G only = GSM only = lowest battery consumption, with slowest data speeds 3G only = WCDMA only = highest battery consumption, with fastest data speeds Automatic = GMS auto (PRL) = medium battery consumption, with fastest data speeds when 3G towers are 'preferred' over 2G towers. This is based on what the towers advertise as being available. i.e. if a 2G tower has a stronger signal than another 2G/3G capable tower, then use 2G.
Automatic uses less juice becasue:
1. 2G uses less juice 2. a stronger signal will yield lower transmit power consumption by the phone, i.e. don't force 3G if there is a stronger signal available at 2G.
Search networks = see all of the providers that your radio is compatible with, i.e. providers transmiting on frequencies your device supports. Select automatically = will prompt every time your phone moves between different services that your provider offers that are not considered roaming.
On AT&T's network, using Any Cut to run Activity, GSM/UMTS Options provides a slight variation of the above menu. This can be used without modifying files. Instead we get a 'Use only 2G networks' check box which causes the phone to switch between GSM Only and GSM auto (PRL).
As always, "Thank You, Come Again".
"Buy me a drink"