What is the Dumpstate Logcat?
Dumpstate, logcat files are stored on the /data/log partition that, unless you root the phone, you and none of the apps you install will have access to it. Dialing *#9900# and selecting Delete dumpstate/logcat clears the logs even if your phone is not rooted and this seems to work only on some Samsung Phones.
Another option to delete your logs if you are using a Samsung Android device is to dial *#9900# and selecting Delete dumpstate/logcat. For Android there are several logs that are being written at any moment in time.
Some of the methods are listed below, use what works best for you. Open the phone dialer, dial *#9900# and select the 2nd option “Delete dumpstate/logcat” in the prompted menu. Select ok to 'Delete Dump' and hit exit. This will restore heaps of storage space by deleting all the log files in the device memory.
- In the Phone Application, enter *#9900#
- Set the Debug Level to Mid.
- Wait for the device to restart.
- Open the app you want to debug and reproduce your issue.
- After reproducing your issue, enter *#9900# again in the Phone Application.
- Select Run dumpstate/logcat.
Log files are just the files which shows the activities performed on the day by your mobile within the instances of time so there is no harm if you to delete them.
It won't really increase your storage space. It is more for if the system is registering the amount used incorrectly. You would clear up more space by either setting the SD card as "Internal" storage, if your device will allow it, or moving all photos, videos, music, etc., (not apps) to the SD card.
Use of code *#9900#
Log, Silent Log, enable Debug for High and provide IMS Logs while enabling SecLog and Silent.
- Clear the cache. A large number of Android apps use the stored or cached data to ensure a better user experience. ...
- Store your photos online.
Log files (also known as machine data) are important data points for security and surveillance, providing a full history of events over time. Beyond operating systems, log files are found in applications, web browsers, hardware, and even email.
- In the Phone Application, enter *#9900#
- Set the Debug Level to Mid.
- The device will restart.
- Reproduce your issue.
- After reproducing your issue, enter *#9900# again in the Phone Application.
- Select Run dumpstate/logcat.
- Select Copy to sdcard.
What is the meaning of *# 0 *#?
The “*#0*#” feature in Samsung phones is described as a secret diagnostic mode that allows users to test some mobile functions to find out any hardware problems like screen colors, dim Light, torch, vibration, and receiver.
Android code: *#*#4636#*#*
This code will open up a menu that shows information about your phone's data usages. Here's how you can retrieve deleted text messages on your iPhone.

Logcat is a command-line tool that dumps a log of system messages, including stack traces when the device throws an error and messages that you have written from your app with the Log class. This page is about the command-line logcat tool, but you can also view log messages from the Logcat window in Android Studio.
To access the logging output, run the 'adb' executable with following arguments to capture the Android Enterprise related logging: Windows: C:\Users\[username]\AppData\Local\Android\sdk\platform-tools> adb logcat -G 32M; adb shell setprop persist. log. tag.
Log messages can be viewed in a Logcat window in Android Studio, or you can use the command line tool to pull them. Several Android apps are also available in the Google Play store that allow easy access to these tools.
Yes, log files can be safely deleted. Next time a log file needs to be appended to and is missing, it will be created (don't delete the actual Logs folder itself though). Log files are always presumed transient.
These log files are produced by Microsoft Internet Information Services. By default: The files are simply log files of accesses to the Web server. It is safe to delete all the old log files.
You can't do anything about your system files, but you can quickly clear out precious gigs by sweeping up stale downloads, rooting out offline maps and documents, clearing caches, and wiping unneeded music and video files.
We rate the claim that dialing *#21# on an iPhone or Android device reveals if a phone has been tapped FALSE because it is not supported by our research.
After you discover your phone was hacked, you can take this number and file a police report. Just enter *#06# code utilizing the dialer pad on your device. Your IMEI number will appear, and there is a necessity to save this number in a secret place so nobody can know it.
What is *# 62 code used for?
*#21# - By dialling this USSD code, you would get to know if your calls have been diverted somewhere else or not. *#62# - With this, you can know if any of your calls - voice, data, fax, SMS etc, has been forwarded or diverted without your knowledge.
- Free up storage space. If your phone is running out of storage space, things will slow to a crawl. ...
- Uninstall unused apps. ...
- Change system animation speed. ...
- Restart your phone. ...
- Use Lite edition apps. ...
- Update to the latest software. ...
- Factory reset. ...
- Consider installing a custom ROM.
Dial *#61# and tap Call to show the number for voice call forwarding when a call is unanswered. Also show the options for data, fax, sms, sync, async, packet access and pad access. Dial *#62# and tap Call is the same as above except for no-service rather than no-answer scenario.
dumpsys is a tool that runs on Android devices and provides information about system services. You can call dumpsys from the command line using the Android Debug Bridge (ADB) to get diagnostic output for all system services running on a connected device.
Clear cache: Deletes temporary data. Some apps can open slower the next time you use them. Clear data storage: Permanently deletes all app data. We recommend trying to delete from inside the app first.
So even if you clear data or uninstall the app, your messages or contacts will not be deleted. However, you will be logged out.
The application stores more vital information like user settings, databases, and login information as data. More drastically, when you clear the data, both cache and data are removed. Clearing data is the equivalent of starting an app in a clean slate as if you've just installed it for the first time.
- 1 – Infrastructure Devices. These are those devices that are the “information superhighway” of your infrastructure. ...
- 2 – Security Devices. ...
- 3 – Server Logs. ...
- 4 – Web Servers. ...
- 5 – Authentication Servers. ...
- 6 – Hypervisors. ...
- 7 – Containers. ...
- 8 – SAN Infrastructure.
Log files are the primary data source for network observability. A log file is a computer-generated data file that contains information about usage patterns, activities, and operations within an operating system, application, server or another device.
Preventing errors from ever getting to a production site is often the most efficient and cost effective answer, but bugs happen. Keeping an eye on the logs for all your applications will help ensure your end user has a better experience, and your hardware/applications are performing their best.
What is a Dumpstate file?
On Android N (Nougat), dumpstate generates a zip file directly (unless there is a failure, in which case it reverts to the flat file that is zipped by Shell and hence the end result is the v0 format).
When a developer wants to find a bug 🐛(a source code related problem) in his app which caused some error then for this purpose they use a term called debugging. So specially in Samsung Android phones, we can access a menu with *#9900# where we can deal with the debugging related stuff.
0 | Emergency | System is unusable |
---|---|---|
1 | Alert | Action must be taken immediately |
2 | Critical | Critical conditions |
3 | Error | Error conditions |
4 | Warning | Warning conditions |
- *2767*3855# (Wipe Your Device and Reinstall Firmware) ...
- *#*#7780#*#* (Run a Factory Reset) ...
- *#06# (Check the Device's IMEI) ...
- *#0*# (Activate General Test Mode) ...
- *#*#232338#*#* (Displays the MAC Address) ...
- *#*#4986*2650468#*#* (Important Firmware Info)
Some of them are already automatically activated by the installed Android system. There are also these so-called USSD (Unstructured Supplementary Service Data) codes or secret codes that allow you to access your smartphone's features, especially the security functions, without the need of going through your settings.
...
Generic secret codes for Android phones (Info codes)
CODE | FUNCTION |
---|---|
*#*#1234#*#* | PDA software version |
*#12580*369# | Software and hardware info |
*#7465625# | Device lock status |
*#*#232338#*#* | MAC address |
Use of code *#9900#
Log, Silent Log, enable Debug for High and provide IMS Logs while enabling SecLog and Silent.
...
Samsung secret codes for One UI.
Secret Code | Function |
---|---|
*#2222# | Hardware Version |
*#1234# | Software Version |
*#9090# | Diagnostic configuration |
*#9900# | Dump mode |
- In the Phone Application, enter *#9900#
- Set the Debug Level to Mid.
- The device will restart.
- Reproduce your issue.
- After reproducing your issue, enter *#9900# again in the Phone Application.
- Select Run dumpstate/logcat.
- Select Copy to sdcard.
Log files (also known as machine data) are important data points for security and surveillance, providing a full history of events over time. Beyond operating systems, log files are found in applications, web browsers, hardware, and even email.
What happens if I dial *# 21?
We rate the claim that dialing *#21# on an iPhone or Android device reveals if a phone has been tapped FALSE because it is not supported by our research.
Android code: *#*#4636#*#*
This code will open up a menu that shows information about your phone's data usages. Here's how you can retrieve deleted text messages on your iPhone.
The “*#0*#” feature in Samsung phones is described as a secret diagnostic mode that allows users to test some mobile functions to find out any hardware problems like screen colors, dim Light, torch, vibration, and receiver.
Did you know Android has a secret menu for customizing your phone's system user interface? It's called the System UI Tuner and it can be used for customizing an Android gadget's status bar, clock and app notification settings.
- Open the dial pad and enter *#0011#
- A window will pop up saying you've entered 'Service Mode'
- Click on Key Input (on the right hand corner of the screen)
- Enter the 'Qo' key.
*#06# To check IMEI of your device, enter this code. *#0*# To enter service menu on the very new Android phones. *#0228# To check battery status.
On Android N (Nougat), dumpstate generates a zip file directly (unless there is a failure, in which case it reverts to the flat file that is zipped by Shell and hence the end result is the v0 format).
To access the logging output, run the 'adb' executable with following arguments to capture the Android Enterprise related logging: Windows: C:\Users\[username]\AppData\Local\Android\sdk\platform-tools> adb logcat -G 32M; adb shell setprop persist. log. tag.
When a developer wants to find a bug 🐛(a source code related problem) in his app which caused some error then for this purpose they use a term called debugging. So specially in Samsung Android phones, we can access a menu with *#9900# where we can deal with the debugging related stuff.
These log files are produced by Microsoft Internet Information Services. By default: The files are simply log files of accesses to the Web server. It is safe to delete all the old log files.
Which logs should be monitored?
- 1 – Infrastructure Devices. These are those devices that are the “information superhighway” of your infrastructure. ...
- 2 – Security Devices. ...
- 3 – Server Logs. ...
- 4 – Web Servers. ...
- 5 – Authentication Servers. ...
- 6 – Hypervisors. ...
- 7 – Containers. ...
- 8 – SAN Infrastructure.
Log files are the primary data source for network observability. A log file is a computer-generated data file that contains information about usage patterns, activities, and operations within an operating system, application, server or another device.