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3855#*2767* format your phone.
#0228#* Learning information about battery.
#9900#* remove temp files.
#0808#* CHANGE USB SETTINGS.
To look at data related to hardware parts.
#1111#* Know the version type of service mode.
#*#0* A set of phone tests.
To know the release of the fixed software and how it is upgraded.
*#*#2664#*#* touch screen verification code.
*#*#0289#*#* sound test code.
Code number 232339 is code for testing wireless communication.
*2767*3855# phone reset code.
Code for telephone information inquiry is *#*#4636#*#*.
*#*#19732840#*#* Enable code Test Mode.
*#*#2663#*#* touch screen information code.
*#*#7262626#*#* Field Test code.
*#*#44336#*#* promo code build time....

The format code for Samsung phones is #2878*2767* or #3855*2767*.
Code reading integrated assessment includes touch screen test, rooster test and camera test.
*#*#4636#*#* checking battery status.
#0228#* Learning information about battery.
Code *#*#0842#*#* is a special code for diagnosing and testing vibration function in Samsung devices to verify the condition of the vibrating motor, also known as vibration.
*#*#232339#*#* checking wifi.
Check that device is unlocked and working with all networks.
*#*#232331#*#* Bluetooth checking automatically.
This code *#*#0673#*#* is specially prepared for individually testing the performance of internal and external headphones. ”
#5376#* delete all messages.
#7337#* unlock code....

Best Oppo Realme secret codes:
IMEI Number #06#*
Realme test code #1234#*
Quality absorption rate #07#*
Battery status (ADC and RSSI reading) #0228#*
Calendar info *#*#225#*#*
Google play services *#*#426#*#*
Geometry mode code #899#*
Form verification code #899#*
Verifying the release of the device #1234#*
Android version, battery usage and battery stats *#*#4636#*#*
Display Mac address for Wi-Fi *#*#232338#*#*
FTA Program Release *#*#1111#*#*
FTA Devices Release *#*#2222#*#*
RANDOM EDITION *#*#3264#*#*
Display Bluetooth headset *#*#232337#*#
Fixed software information *#*#1234#*#*
Shows building time and change list number *#*#44336#*#*
Information about camera *#*#34971539#*#*
Device sound test *#*#0289#*#*
Touch screen test for device *#*#2664#*#*...

🐧 MODERN LINUX NETWORK TROUBLESHOOTING – MADE SIMPLE!

Whether you’re using Ubuntu, Debian, Fedora, Arch, or RHEL-based systems, this light-theme infographic walks you through modern Linux networking commands step by step — from checking IPs and routing to DNS, NetworkManager, and packet capture 🌐💻

🐧 Modern Linux Network Troubleshooting Guide
Works on Ubuntu 20.04+, Debian 11+, RHEL/CentOS Stream, Rocky, Fedora, Arch

1️⃣ CHECK NETWORK INTERFACES & IP ADDRESS
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Bash
ip addr show
Purpose:
Shows IP addresses (IPv4/IPv6)
Confirms interface is UP
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Bash
ip link show
Purpose:
Checks physical/logical interface state (UP/DOWN)

2️⃣ CHECK DEFAULT GATEWAY &...

The most important hidden #codes of the Android system to remove data and manage smartphone settings:
*#*#7780#*#* factory reset code mobile.
“”#7780#*#* is the code used to remove all apps and information from the cell phone.
*#*#7780#*#* remove google account settings.
*#*#7780#*#* Works on scanning system settings and application data.
Resetting the device's fixed system software using the code 3855#*2767*.
Factory No. 3855#*2767* has been prepared for the manufacturing of Android phones.
Code #3855*2767* is a factory reset code for the Android phone, resulting in deleting of all files and settings, including internal memory files of the device.
Activate test...

#HUAWEI PHONE TESTING CODES

*#*#2664#*#* check code and screen test.
*#*#0842#*#* vibration test code.
*#*#1111#*#* software release type code.
Code *#12580*369# gives you access to complete software and device information.
*#9090# Diagnosis Dialogization Code.
*#*#232337#*#* Update the camera.
*#*#19732840# Code Test Mode Test Mode.
*#*#4636#*#* wireless work trial code.
Code #872564 is used to control the registration process of the General Serial Transmitter (USB).
*#9900# discharge system place code.
* #301279# List control code.
#06#* IP display code of the device.
*#7465625# display code phone lock status.
Code reveals Mac and wifi
It is the code used to return the...

1️⃣ Disable Heavy Startup & Background Apps
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Powershell
taskmgr

Startup tab → Disable non-essential apps
Also:
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Powershell
Settings → Apps → Installed apps → (App) → Background app permissions → Never

2️⃣ Ultimate Performance Power Plan
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Powershell
powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61
Then:

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Powershell
Settings → Power & battery → Power mode → Ultimate Performance

3️⃣ Reduce Visual Effects (Huge FPS boost)
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Powershell
SystemPropertiesPerformance

Choose Adjust for best performance
(Keep Smooth fonts ON if you like)

4️⃣ Disable Core Isolation (If supported)
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Powershell
Windows Security → Device Security → Core...

🛡️ HOW TO REMOVE VIRUS USING CMD (STEP-BY-STEP GUIDE)

Learn how to detect, stop, and remove viruses on Windows using Command Prompt — no extra software required. This guide covers killing malicious processes, revealing hidden files, cleaning startup entries, repairing system files, and securing your PC the right way.

⚠️ Always proceed carefully and back up important data. For best protection, combine manual cleanup with trusted security tools.

🛑 STEP 1: Open CMD as Administrator
Press Windows + X
Click Command Prompt (Admin) or Windows Terminal (Admin)
If you can’t open CMD normally:
Boot into Safe Mode with Command Prompt...

The code 64663 is the test code for quality control of Xiaomi products.
*#*#4636#*#*Xiaomi test code
*#*#225#*#*Xiaomi calendar code.
*#*#426#*#* Google Play services code.
Code 759 is Xiaomi’s “Rlz Debug Ul” correction code.
# 06 # * Amy Information Code
Code #64663# is a code used to test the list of items displayed on the device's screen, such as Bluetooth, software version, device sensors, and camera.
*#*#4636#*#* is a code used to enter the diagnostic check list. In this list, you can find data about battery life or Wi-Fi information.
Timeline code number 225. In this chart, you can easily...

🍎 ESSENTIAL MacOS (MacBook) TERMINAL COMMANDS

Boost your productivity and master the macOS Terminal with these key commands — from file management and system checks to networking, permissions, and PowerShell utilities 💻⚡

📁 FILE & DIRECTORY COMMANDS
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Bash
ls # List files
ls -la # Detailed + hidden files
pwd # Current directory
cd dir # Change directory
cd .. # Go back
mkdir dir # Create folder
rm file # Delete file
rm -r dir # Delete folder
cp a b # Copy file
mv a b # Move / rename

🖥️ SYSTEM CHECK COMMANDS
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