Android Enthusiasts Stack Exchange is a question and answer site for enthusiasts and power users of the Android operating system. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am using a Samsung Galaxy S Duos S7562 with Android 4.0. Whenever I disconnect a call, the network vanishes for a few seconds when the phone is in GSM/CDMA auto mode. The network is fine in GSM only mode. Please share any reasons and solutions for this.

share|improve this question

In GSM/CDMA auto mode, the mobile uses its energy to keep updated on the network that surrounds you. That's why many people complain heavy battery useage when on GSM/CDMA auto mode. In finding a CDMA network it would try to switch to that network. And at this moment you experience a disconnection for few milliseconds.

The ideal way would be to manual switch between the two. GSM when you're on calls and CDMA when you're performing heavy data operations. If you got rooted phone you can use cyanogenmode controls to setup this effortlessly.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.