Logging is the process by which the system records what's going on - i.e. events, errors, warnings, and related information. Most apps provide details in log files, so the system logs help to debug problems.

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Music playback stops randomly

I have bought the Xperia ZQ (Xperia ZL's alias in Brazil) C6503. I am experiencing a very annoying problem: from time to time the audio playback in any audio app just stops. If I hit play again it ...
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3answers
13k views

What are these dumpstate logs?

So, these files were filling up my /data/logs directory, causing me to run out of storage space rapidly. What are they, why are there so many and how can I stop them clogging my storage? Screenshot ...
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2answers
106 views

How do I begin to troubleshoot aCal?

I'm running aCal on my Samsung Galaxy S / Gingerbread and it isn't updating. Adding events pushes them out to my CalDAV server, but I don't see any events. In aLogcat I see an awful lot of errors: ...
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1answer
236 views

How do I get the log files on my Optima Smart 220?

I want to access the log files of my tablet (Optima Smart 220, running 4.1.1 Jelly Bean). Also, how do I root this device so I can get the log files?
3
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1answer
521 views

Dev/Log's - login attempts and how to read the log?

My first post on here and hopefully a easy fun answer. I'm looking for the location for failed login attempts on the device - I've looked on the device and it seems the logs are located in ...
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2answers
3k views

How to find the app that causes crashes?

Where should I begin the hunt for the cause of crashes / reboots when logging apps do not work anymore?
4
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2answers
39k views

Samsung Galaxy S3 black screen and automatic reboots

I have a Samsung Galaxy S3, purchased on July 2012. Sometimes, when I press the power button, the screen keeps black. The button LEDs turn on, but nothing else happens, and I have to remove the ...
0
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2answers
291 views

logcat log loss

I am using android jellybeans. There is a large amount of debug information being dumped by many components. So, I notice that logs from my application are often lost. I have tried dumping logcat log ...
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1answer
1k views

Debug Samsung Galaxy S3 Blank Screen Freezes

my Samsung Galaxy S3 suffers from the Black/Blank screen freeze. The only remedy is to pull the battery to get the phone to respond again. I'm running Android 4.1.1 and I have done a factory reset. ...
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0answers
19 views

How can I determine what app put a spam shortcut on my home screen? [duplicate]

Recently, I discovered that some app on my phone had taken it upon itself to place a very nice "Free Games" shortcut on my home screen. I haven't installed any new apps in the recent past, so I would ...
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0answers
4k views

Can receive but cannot send SMS on SGS3, help me debug with logcat?

For a couple months now (during which time I've tried ~20 ROMs), I can receive & make calls fine, receive & send emails fine, sync fine, everything is fine except I cannot send SMS. I've tried ...
2
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1answer
3k views

Google Play Store Doesn't Open

So, in the end of the past year I have finally got to root my china replica (fake) Galaxy SIII Everything was working just fine, until I remove some app from the /system/app directory, because this ...
2
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0answers
1k views

Trace/log of all activity on my android device [duplicate]

Is it possible to put on trace or get log of all activity on android device. If so, How?Also are there any key logger application
5
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2answers
5k views

Analyzing packets in android

I want to analyze packets on my rooted Android mobile phone. What I did so far: I have installed shark for root and shark reader. I tried to sniff packets, but shark reader only shows RAW packet. ...
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0answers
23 views

What is FxStreamingTexture and why does it fill up my logcat?

My locgat is full of such lines: 01-05 10:46:40.939: D/FxStreamingTexture(3948): BasicFuture_get return m_value = android.graphics.Bitmap@4074d6b8 How can I get rid of them?
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0answers
167 views

What is the origin and purpose of RS_##.log files?

On my Galaxy S3 (I747, rooted stock ROM, 4.1.1 jellybean), there are a number (currently 66) of files in /data with names following the format RS_##.log, where ## is a 1 or 2 digit number, currently ...
13
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7answers
832 views

How can I monitor and log data connection mode and rate, and log with location?

I would like to understand what connection type and theoretical data rate my phone is using for its data connection, and how it changes with different locations. I'm not looking for an actual data ...
2
votes
1answer
418 views

What would cause the existence of a /sdcard/logfile.log?

Since quite some time I've been getting a file /sdcard/logfile.log which gets really big quickly, last time I checked it was about 2MB. That file seems a general system log since I remember seeing ...
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2answers
384 views

How do one know what is the reasons why an android apps exit with exceptions?

Sometime, when you install a particular apps in the emulator, it work perfectly fine. So, you install the apps into your phone and/or tablet and it throws an exception when you run it. Similar, when ...
3
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3answers
496 views

Can the on-board ADB Server find the device itself?

I know that Android devices have an on-board adb server. I am able to start the server through the terminal emulator and run adb commands, but the device itself does not show up in the device list. ...
2
votes
1answer
2k views

How can I get a LogCat? [duplicate]

Possible Duplicate: How can I view and examine the Android log? Sometimes I get asked for a LogCat. What is this? What is it supposed to do? How can I get it?
2
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1answer
1k views

How to troubleshoot a lockup/freeze

I have a GNex running on CN(A) 3.8. It has started to lockup/freeze when the screen is off. So far it occurs mostly overnight while it's charging. I have to pull the battery to resolve. I believe it ...
0
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1answer
657 views

Dangers of Apps running in “Hidden mode”?

I have downloaded an app to record all my calls. The app is working great but the trouble is that it doesn't shows up under the "Ongoing" in the notification bar nor does it shows up in "active ...
4
votes
1answer
348 views

Is there a way to get detailed information on why an OTA update fails?

I'm trying to figure out why my OTA update is failing. I have unrooted my Droid Bionic, and did a factory reset. It starts to update, then reaches about a quarter of the way and stops. It just ...
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0answers
358 views

How can I see bootloader stdout debugging messages?

I'm trying to understand the mechanisms of the Android bootloader. The source code for this is here: ...
6
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2answers
2k views

What is the format of Android's logs?

I'm trying to gather data about my phone by analyzing the log files in /dev/log. I'm specifically looking at /dev/log/main. I always thought that any sane log format would be plain text, yet these ...
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2answers
573 views

How can I track my app usage? [duplicate]

Possible Duplicate: How can I track app usage? If you're not familiar with the late Wakoopa app for desktop, it's a small utility that runs in the background and monitors what application / ...
4
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2answers
11k views

How can I access android log files on my Nexus 7 without root access?

Since aLogcat now no longer works with Jelly Bean, how can I access the system log files on my device without either root access or attaching it to a computer? I have tried using adb logcat from my ...
2
votes
1answer
510 views

How active should I expect my Jelly Bean system log file to be?

When using aLogcat to view my Android log files, I find very few messages showing up in any of the views. Selecting Verbose level and no filter, I see that Main contains mostly garbage collection ...
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3answers
865 views

Pause Android LogCat output

How can I get a wider LogCat output than the one from the terminal window? I also want to be able to pause the output so I can actually read something. My OS is Windows 7 X64.
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2answers
10k views

Problems accessing message logs on Jelly Bean with aLogcat

Summary I have been having problems accessing the K9 log messages using aLogcat, see below for more details. What I would like to know is: Why are no log messages from K9 appearing in the aLogcat ...
3
votes
1answer
337 views

How to log and visualize resource usage stats (to identify resource hogs)?

I want to be able to collect up to, say, a couple of day's worth of resource usage statics for my android, at the resolution of individual apps, and ordered according to their shares of the resource. ...
0
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1answer
7k views

Android debugging-Boot Loops: Is there any way to get a log of information without ADB? Can the emulator even help? [duplicate]

Possible Duplicate: Android boot-up messages for debugging? Related to this post I created: Does the Android emulator generate some sort of log file I can access if it crashes? I have ...
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1answer
4k views

Does the Android emulator generate some sort of log file I can access if it crashes?

Let's say I am working with the Android emulator, and get it to run one of my custom images/custom kernels, and it gets stuck in a boot-loop or crashes after a little while in booting up, does it ...
2
votes
2answers
3k views

Is there a good way to find out why an Android phone hangs?

Are there any log files you can look into, or any good ways of finding out if an app is causing the phone to hang (if even possible)? My friend has an Xperia Arc and after a while with a custom ROM ...
6
votes
2answers
6k views

Does android keep a log of when it starts?

I'm making a parental control/accountability app for android. It consists of a monitoring service that runs in the background and starts when the phone is booted. Unfortunately, I have found that ...
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1answer
1k views

rmt_storage keeps polling and spam logcat

In logcat I can see rmt_storage keeps doing something every 2/3 seconds I/rmt_storage(15279): rmt_storage open success I/rmt_storage(15279): rmt_storage shared memory ioctl success ...
8
votes
1answer
256 views

LogCat shows exception in SyncProcessorQueue every 5 seconds

I just started noticing this in my Logcat, it seems like every 5 seconds I get this exception caught. Does anyone have any idea what app or part of the OS it could be? I can't imagine whatever this is ...
4
votes
2answers
930 views

Something causes my phone to hang and reboot

This problem always happens after I restore my apps from Titanium Backup and move them to the SD card, regardless which ROM. However, I noticed that this problem has something to do with the SD card. ...
1
vote
1answer
1k views

Where is the Android log file to see if app installed correctly? [duplicate]

Possible Duplicate: How can I view and examine the Android log? Where is the log file. Why not logs/system.log? I see a log using app but nothing about install information. Like failures ...
3
votes
1answer
909 views

My Device Keeps Rebooting (LogCat attached)

For some reason, after I changed my device's battery. It just keeps rebooting and here's a LogCat of the error: E/JavaBinder( 1305): *** Uncaught remote exception! (Exceptions are not yet supported ...
2
votes
2answers
2k views

How do I increase the log size of dev/log/main?

How do I increase the size of dev/log/main by a factor of 10? My understanding is the log has a fixed size (16K?) and rolls over when that limit is reached. I'd like to find out what the log size is ...
7
votes
1answer
4k views

Dropbox not installed, but there is log activity in /data/system/dropbox?

I don't have dropbox installed, but whilst checking log files I've found that there is a /data/system/dropbox directory with log files from the 18th (which I think is the last time I rebooted my ...
3
votes
3answers
14k views

Can I delete the log files on my device?

I'm currently developing on an Android 2.3.4 device. I've got root access to the file system, and I'm looking for the location of the system log files (like /var/log) so that I can delete them, but ...
7
votes
1answer
234 views

Is there a way to save pop up alerts?

After every call/message, my service provider (airtel) displays a popup which has the last call cost and current balance. Is there a way I could log them automatically and have the latest balance ...
2
votes
2answers
3k views

Enabling logcat in a ROM that has it disabled

I'm running Liquid Smooth 3.2 on my Motorola Droid 1. This ROM comes with logcat disabled (/dev/log/main doesn't exist). I tried starting the logcat service myself by adding the following to ...
6
votes
1answer
168 views

How can I log the start and stop connection with known WI-FI networks

At the end of a week , I would like to see a log for each connection with a (known) WI-FI network I made with my Galaxy phone. I automatically connect to different networks. It would be nice to see ...
7
votes
3answers
281 views

Is it possible to track what information on your phone an app is uploading?

If you are concerned about what information an app is sending about you (your privacy concerns) is there any way of tracking this? Can you see if an app is sending photos on your phone? Can you see if ...
2
votes
1answer
172 views

Is there a way to read a network log file directly from the Android device using a Linux tail command like?

Is there a way to do what's asked in the topic subject for unrooted and/or rooted phones? I'd like to read from a system log file instead of constantly listening the network activity for battery ...
27
votes
5answers
61k views

How can I view and examine the Android log?

There is a lot of interesting stuff in the Android system log, that is helpful in many ways find root causes of problems identify misbehaving apps How can I view and examine the Android log?