How can I get information what happend with my Galaxy S4
To begin with this, I don't think that this question doesn't belong here, because it's related to the Android system logs and that's something we can be helpfull with.

I found a Thread, where the people are discussing various methods to obtain these log information - see here:

There are several directories where logs (including those from crashes) might appear -- not all of them are standardized (i.e. some may be ROM-specific).

/data/anr: Some trace files seem to get here (Dalvik writes stack traces here on ANR, i.e. "Application Not Responding" aka "Force-Close"; see e.g. log excerpts here)

/data/dontpanic seems to be a standard location (AOSP), and contains some crash logs including traces (see e.g. viaForensics and StackOverflow)

/data/kernelpanics is another location -- not having had any "kernel panic" on my Android devices, I saw no content there yet.

the /data/panic/panic_daemon.config may point to other locations configured -- on my Droid 2 it mentions /sdcard/panic_data/

/data/tombstones may hold several tombstone_nn files (with nn being a serial, increased with every new file). As tombstones are placed for the dead, it is done here for "processes died by accident" (i.e. crashed) -- and it is what is referred to as "core dumps" on Linux/Unix systems. However, not all apps create tombstones; this must be explicitly enabled by the developer (see Debugging Android Core Dumps).

Since you already have root access to your phone, you can even examine the LogCat output through the adb.

Here are some other links that might be of use for you:


Link - The "Android System Info" Application's description
Link - The "Crash Log (Logcat)" Application (PlayStore link)
Link - *


In brief: Since it's a long artice, which describes how to debug, this can be found anywhere in Google (see also "debuggerd"). This is of course if those links ever get down.



My personal advice - revert to the original Android ROM, which was installed on the Samsung, then perform a revert to factory defaults, go where you bought the phone and ask them to see it once more if the problem persists.

Cheers