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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Empty /data/log folder

I have Galaxy Sii s9100 with CM 10.2 (android 4.3) I am encountering the bug that fill the folder /data/log and display the notfication "Storage space running out" I can see that the problem is ...
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Help with dumpstate log in my Galaxt S2?

I have a Samsung Galaxy S2 with CM 10.2. When I run the *#9900# I get the following error: Connection problem or invalid MMI code Also, I tried to install the app 'Logs Eraser' from Liam W. ...
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Writing to /dev/log/main from command line

It is possible to write encoded messages into /dev/log/main and then see them in the adb logcat output. The command should be executable through adb from the host PC. Ideally, it should look like: ...
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1answer
381 views

How can I get an infinite callhistory in CyanogenMod 10.0?

I would like to have all calls I ever called or called me in the history. Is this possible?
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1answer
501 views

What Options Are Available For Viewing the LogCat?

I recently had to capture my logcat for my HTC EVO 4G device to try and identify the reason why updates sometimes fail claiming there is insufficient memory (issue discussed more extensively here). ...
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0answers
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Is there any way to dump the Data Usage log through the ADB shell?

The reason I would need to dump these data is because in smalls display (S5301) doesn't fit everything and data is cut. I couldn't do anything to move that graphic. Look, I've searched in Google ...
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1answer
317 views

How old is the datalog when just starting “logcat”?

When I run adb -d logcat it dumps data from a time before. How old is that data?
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1answer
286 views

Where and how do I read logs for a specific app?

I know there are a lot of threads about android logs but I can't find an answer to this: Where and how do I read logs for a specific app? I have installed the Android SDK, connected my device and ...
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1answer
143 views

ADB_SERVICES error on catlog errno = 5 I/O error

I'm using catlog to find error for an issue. Although that issue did not reappear , I see a constant Error ADB_SERVICES ERROR: fd = 13, n = -1, errno = 5 (I/O error). Sorry quite new to all this , ...
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Debugging Galaxy S2 Bluetooth problem: Bluetooth disconnects, Bluetooth status never fully turns on, Only reboot resolves this

I know many have problems with Bluetooth and certain car kits. I specifically have a VW. In any case, my Galaxy disconnects from not only my car, but also from my Philips in home audio system. In both ...
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1answer
152 views

What does the error message “Light old sensor_state 0, new sensor_state : 128 en : 1” in logcat mean?

I have my Galaxy S4 connected with my PC and ran the "Building My First App" tutorial from http://developer.android.com/ . There were no problems, but I noticed many messages about the LightSensor in ...
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42 views

Getting the activities of the user

Is it possible to get a list of user activities? I want to know when the phone was opened, when it was locked, etc. Just the basic things.
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1answer
850 views

Android early boot console over usb

I'm trying to port newer kernel versions onto my Nexus S device. Most newer kernels panic very early on in the boot process. I would like to debug this. However, since the phone has been provided to ...
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1answer
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How to get dumpstate logs in samsung galaxy grand?

While working on my app, I have faced app crash. But I can't get any dumpstate log from data/log folder. So what is the solution to get dumpstate. Or I have to create any folder on my app name in data ...
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2answers
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Bug Report and Power-Bug Report Functions not working on Nexus 7 Android 4.3

I need to gather log info for QA testing. The settings menu "Bug Report" and the power menu "Bug Report" functions don't work for me on my Nexus 7 running Jellybean 4.3 (don't know if it ever worked ...
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1answer
496 views

How can I monitor and log the connections to my phone's wireless hotspot?

I'm sure the phone will be logging all connections and connection attempts when it is used to set up a wireless hotspot - my question is how can I view these logs? If the default setting is not to ...
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0answers
506 views

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
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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
111 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
258 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?
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1answer
590 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?
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2answers
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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 ...
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2answers
373 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
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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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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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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 ...
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1answer
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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 ...
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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
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2answers
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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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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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180 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 ...
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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 ...
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1answer
434 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
476 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 ...
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3answers
563 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. ...
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1answer
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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?
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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 ...
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1answer
715 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 ...
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1answer
435 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
391 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
3k 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
676 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 / ...
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2answers
12k 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
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1answer
533 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
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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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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
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1answer
368 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. ...
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1answer
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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
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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 ...