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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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?
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7answers
2k 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 ...
13
votes
5answers
9k views

How can I record touches?

Is there an existing app I can install that will record my touch interactions in the background? I just saw this and it made me want to play around with my touch data to see what it looked like. ...
9
votes
3answers
69k views

Where are log files located on Android? [duplicate]

Possible Duplicate: How can I view and examine the Android log? My android (2.1) phone (a HTC Wildfire, if that matters) sometimes reboots without an apparent reason. Not extremely ...
8
votes
7answers
9k views

Does access to logcat need root?

My device is already rooted, this is why I'm asking. Do you need root to monitor the logcat stream on the phone? If I ran the logcat command from within a Terminal on the phone, would that work?
8
votes
2answers
9k 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 ...
8
votes
2answers
16k 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 ...
8
votes
4answers
19k 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 ...
8
votes
1answer
276 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 ...
7
votes
3answers
284 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 ...
7
votes
1answer
6k 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 ...
7
votes
1answer
256 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 ...
6
votes
2answers
15k 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 ...
6
votes
2answers
4k 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 ...
6
votes
1answer
175 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 ...
6
votes
1answer
958 views

Which app sent the unauthorized texts?

Today I got an automated text from my wireless provider saying I'd gone over my text limit. This is odd because I send maybe 50 texts a month. When I logged into their customer site I found over 3000 ...
5
votes
1answer
714 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 ...
5
votes
2answers
8k 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. ...
4
votes
3answers
25k 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 ...
4
votes
1answer
146 views

Does android save a log of its own IP addresses?

I have a Wifi network to which I connect at work. The IP address has always been DHCP, but today the DHCP server is down. If I can figure out what IP address I had, I can set it statically (after ...
4
votes
1answer
772 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 ...
4
votes
2answers
43k 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 ...
4
votes
2answers
1k 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. ...
3
votes
1answer
393 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. ...
3
votes
1answer
168 views

Is there a program which will log each program I start on my Android device?

I am looking for a program that will count each start of a program on my Android device. Over time, you install quit a lot of programs. It would be nice to see how many times you actually start ...
3
votes
1answer
2k views

History of installed/uninstalled apps

I don't know if there is already a thread about this particular issue, but if so forgive me. I would like to know how can I see the date when I installed and uninstalled a certain app some time ago ...
3
votes
1answer
4k 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?
3
votes
1answer
771 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 ...
3
votes
3answers
685 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. ...
3
votes
1answer
980 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 ...
3
votes
0answers
174 views

How to Diagnose WiFi Issues?

My Samsung Galaxy S4 (GT-I9515) with Android 5.0.1 does not connect to one particular WiFi any more - the Eduroam network at my workplace. The network is listed in the available networks list, with ...
3
votes
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. ...
2
votes
2answers
3k 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 ...
2
votes
1answer
585 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 ...
2
votes
1answer
3k 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 ...
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 ...
2
votes
2answers
4k 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 ...
2
votes
2answers
496 views

Android Log Output KINETO

On my T mobile G2 there is always a lot of action in my Log output that has the tag KINETO these are the two most common things it puts in there: ERROR/KINETO(9304): KLOG0C3- xmk_QueryOSQueue SDL ...
2
votes
1answer
762 views

Does logcat dump debug logs while it isn't expressly running?

my android device reboots itself automatically sometimes,so i need to get a way to debug whats causing that. i know about logcat,but what about the debug msgs when logcat isnt running,does logcat ...
2
votes
2answers
54 views

Apps spamming my log

I've been looking at my log recently for more development of android applications, and I've noticed my log is spammed with all sorts of information that I wouldn't considered needed to be logged. ...
2
votes
1answer
188 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 ...
2
votes
1answer
9k 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 ...
2
votes
1answer
5k 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
1answer
2k views

How can I determine what is causing my Nexus 4 to freeze?

I have a new-ish Nexus 4 with Cataclysm ROM installed (rooted, 4.3). The device has recently started freezing - being unresponsive to button presses, but with the white LED pulsing. I have to ...
2
votes
2answers
2k views

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 ...
2
votes
1answer
4k 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
votes
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 ...
2
votes
1answer
219 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 ...
2
votes
0answers
77 views

How to troubleshot: IpcThreadState log spam / system_server eating battery

The last days, i encounter the issue of my phone draining its battery fast (about 10-15%/h when idle). I'm trying to see what's happening, there are no unusual or suspicious alarms or wake locks. ...
2
votes
0answers
5k views

List of purchased apps and app install/uninstall history log anywhere?

My device was damaged and since then I've had to order a hardware replacement. Given that all purchases and application installs/uninstalls via Google Play Store are carried out in connection with my ...