disable the 3g or 3,5g
connection.
Ths a trick to use 3g while power
save activated.. :
1.make sure your power save
deactived and 3g or 3,5g activaed
2. Now, press your power key, and
choose offline profile
3. Then, activaed the power saving,
4. Go back and choose general,or
silent mode
5. Enjoy
tested on c7 refresh