Re: Battery drain after installing ICS 4.0.3 update for Samsung Galaxy S2.

Since yesterday afternoon my phone has gone to normal battery consumption or maybe even better than before installing ICS.

The ES (Exchange Service) has stopped checking the network every 10 second and the scheduled mail retrievals do their job every hour. I am a bit unsure exactly when it went to normal, as I did the manual stop of ES as a work-around (mentioned earlier) during the whole day.

The phone had a long nice sleep during the night and lost just a few percentages of battery capacity.

My suspicions yesterday were that SH (Social Hub) had something to do with the “exchange service problem”. (SH is a Samsung thing and not a Google responsibility to test?)

I still didn’t want to re-set to factory settings. So I killed all (3) SH program/processes from SETTINGS>PROGRAMS menu. What happened was that the phone reacted a bit strange for a few seconds. It felt a bit unstable, but that is what you could assume.  

I was able to send and receive mail, but I got some error messages (that was assumed as well).

After that I re-booted the phone and it was normal again.

My hypothesis is that SH kept some “old” parameter settings from Gingerbread and the “un normal” restart of SH forced it to renew that data but with ICS parameter settings. That could explain why factory reset works as well.

Actions taken since my last report is:

1.      Killed all running processes belonging to Social Hub

2.      Re-boot the phone

3.      Deleting my Corporate Exchange Account and installed it again. (This was by mistake. My aim was to disconnect the Exchange Account from Social Hub, but doing so it was erased from the phone.)

Actions not taken:

Re-set to factory settings.

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Disclamer:

This is just a hypothesis from an Android Amateur, but with long experience from computers.