Do Samsung S4 and S5 have an independent battery for the modem?


Both the S4 and the S5 have removable batteries. And I wonder if there is an independent battery for the modem that would allow it to be powered on even when the main battery is removed.

Both are located on a board that does not seem to have an independent power source. But I know close to nothing when it comes to hardware so… feel free to correct me :slight_smile:

Any idea ?