*#9900# Android Code: What It Does and Why It's Not Working?

*#9900# Android Code: What It Does and Why It's Not Working?

Hello there! Have you ever stumbled upon a secret code on YouTube, Reddit, or Instagram promising to fix your slow Android phone instantly? Perhaps you’ve seen a viral video or a Reddit thread discussing these secret codes, particularly the *#9900# Android code. While these codes are helpful, one must be aware of their truth. These codes can also have an adverse effect on your phones. They're specialized tools for experts, not for normal people like us. Many people are not from a technical background.

This guide will clear up the confusion about Android secret codes, explaining what they really do, which phones they work on, and why they aren't the answer to your performance problems. More importantly, I will give you a full, expert guide on the real, effective ways to make your phone run faster. Well, many people think that clearing storage will speed up their phones but it's only true to some extent. I'll share everything from the *#9900# code to some useful codes, and then dive deep into simple ways to make your phone faster.

Deciphering the Code: MMI vs. USSD

Before knowing the fix for this, it is important to have a basic understanding of these Android codes. These codes are of two main types. This info will save you from frustration when any secret code doesn't work on your phone.

MMI (Man-Machine Interface) Codes: These codes are prebuilt by the manufacturer of your phone. These secret codes operate directly with the software of your phone. They're built by the phone's manufacturer for testing and checking the behavior of your phone. Every manufacturer has its own secret codes. So a secret code for Samsung will not work on your iPhone. That's why the *#9900# Android code, which is for Samsung phones, is not working on your phone.

USSD (Unstructured Supplementary Service Data) Codes: You must have used these codes to check how much data you have left. When you dial a USSD code, your phone sends a request to your carrier's server, which then sends back the requested data. You use these codes every day to check your data balance or top up your account. These codes are just for communication. These codes are not useful in fixing this issue.

Understanding this difference is key to knowing why some codes are universal, while others are strictly for specific brands.

 Myths of  *#9900# Android Code  and Other helpful Codes

Samsung phones have a lot of secret codes, and *#9900# is one of the most popular codes. This code opens the "System Dump" menu. It helps in collecting and managing system log files. These log files are continuously generated while you use your phone.
The Myth of *#9900# and Speed

Most people think that *#9900# delete dumpstate/logcat option will instantly speed up your phone. This step only clears temporary system log files; its effect on performance is minimal and doesn't last long. These are only small log files and your device automatically creates new ones. It is mainly used by developers to get detailed reports to help them find bugs and fix issues. It's useless for most of us. It doesn't provide any speed to your Android phone. Also this code will only work on Samsung Phones and you will mostly encounter error messages.

If you really want to know how to use it, you will understand it better by watching this helpful video from YouTube.

Useful Samsung Codes

If you have a Samsung phone, these codes will definitely help you.

*#0*# (General Test Mode): This is probably the most useful code if you have a Samsung phone. It provides a list of options to check your phone's hardware. You can check your screen for dead pixels, test your touch screen, camera, speakers and all of your phone's sensors. It is very helpful if you are trying to buy a used phone or a new one.

*#0228# (Battery Status): This code provides a detailed look into your battery's status, including the temperature and voltage. But it will only display information, it cannot provide you a long lasting battery.

*#1234# (Firmware Info): If you want to know the version of your phone's software code that shows your phone's current software version. So try this one to check if your phone's software is updated or not or you need to upgrade your software.

Secret Codes for different brands:

If you are worried that you don't have a Samsung phone then these secret codes are for you. Every phone company has their own secret codes. Always make sure to use the secret code of your respective brand. This will help you understand why the *#9900# android code won't work for you.
Google Pixel

*#*#4636#*#* (Testing Menu): This code provides various useful information regarding your phone's network and Wi-Fi. You can use this code to check your network signal strength, view your Wi-Fi information, and even see how long you've used different apps. This code is mainly supported by most of the android phones. So this code might be helpful for your query.


*#*#426#*#* (Google Play Services Diagnostics): This secret code provides various useful information about Google Play Services, which manages many of your phone's background tasks. When you dial this code, it opens a FCM Diagnostics page. You can check the event logs in this menu and information about message delivery.
Xiaomi/Redmi/POCO

*#*#6484#*#* (Hardware Test Menu): It is very similar to the Samsung's *#0*#. It provides a detailed hardware testing menu, allowing you to check various features like your screen and touch panel to your camera and sensors. It's also known as "QC Test".

*#*#6485#*#* (Battery Health): This secret code provides useful information about the battery, including its health and how many times it has been charged. If you are worried about your battery health. Check this secret code, it might help you. This code is very popular among Xiaomi users.
OnePlus

*#808# (Engineer Mode): This code of OnePlus is mainly used for hardware checks. You can use it to test your screen, camera, speakers, and other parts to make sure they're working correctly.


*#1234# (Software Version): This is a quick and easy way to check the software version of your OnePlus phone. So use it now to check if your phone needs an update. Try this soon, maybe it might protect you from cyber threats.

How to Truly Speed Up Your Phone

Now, you might have realized that these codes might not help you in speeding up your phone, but there are certain proven ways to make your phone run faster. These common steps work on both android and iphone. You can use this techniques to make your phone run faster, I will suggest to try these steps instead of using the *#9900# android code.

1. Free your Storage Space

This might seem simple but it is the most effective way to speed up your laggy phone. If you have storage is full above 90% then you need to free up your space. Your phone needs free space to save temporary files, run apps smoothly, and install updates. Each app takes different spaces to run smoothly. Android's software may reduce the performance of unnecessary apps making your phone laggy.

The Best Ways to Do It:

• Delete Unused Apps: This is the most basic approach. We all have apps we downloaded and never used again. Go to settings and then apps, you will get the list of all apps and delete all unwanted apps that you are not using.

• Use Cloud Storage: If you have a lot of Photos and videos, use cloud services like Google Photos, Google Drive, Dropbox or third-party services. Create a backup of your photos and videos and delete them from your phone. This will really help if you click a lot of selfies.

• Use a Cleaning App: There are many Phone cleaning apps available on Playstore. You can use google files app to clean your phone. Many file managers already have a feature to clean cache and unwanted files.

2. Manage Your App Cache and Data

Android apps or iPhone apps, mostly use temporary storage known as cache, to load data faster. Slowly, this data can grow to several GB (gigabytes), taking up valuable space and slowing down your phone.

The Best Ways to Do It:

• Clear Cache: Go to Settings > Apps > See all apps. Select any app, you have installed (like facebook or chrome). Tap on Storage & cache and then Clear cache. It only deletes the temporary files, so you don't have to worry about deleting your personal information. Always make sure that you don't accidentally press the "Clear All Data" button. It may delete your personal information.

• Use the "Force Stop" Option: If any app is crashing or it freezes your screen, you can go to Settings > Apps, find the app, and click on Force stop to forcefully stop the app. This step will completely close the app and its background processes, giving your phone a clean start.

3. Reduce Animations

If you have a latest smartphone, then you must have beautiful animations. This make the phone look nice, but these can make the phone feel slower, especially on older devices. By adjusting these, you can make your phone feel much faster.

The Best Ways to Do It:

• Turn on Developer Options. Go to Settings > About phone and tap the "Build number" seven times. This step may be different for different phones. You can try watching a tutorial on youtube if you have any issue. Then after this step, you'll see a message that says "You are a developer now".

• Then, go to Settings > System > Developer options.

• Try looking for something like "Window animation scale", "Transition animation scale" and "Animator duration scale". Set all three options to ".5x" or off. This makes everything on your phone happen instantly, making it feel a lot faster. Also it consumes less resources.

4. Keep Your Software and Apps Up-to-Date

Software updates or any app update might improve the performance of your phone as it has bug fixes several updates that can make your phone faster by consuming less resources. They are full of important performance fixes, bug fixes, and security updates. Old phones or app can be a great issue for laggy performance.

The Best Ways to Do It:

• System Updates: Always check for new Android versions for your Android phone. You can go to Settings > System > System update. If you have a slow phone, try updating your software.

• App Updates: Open the Google Play Store, click on your profile icon and then go to Manage apps & devices to update all your apps at once. You can also search for a particular app on playstore. If any update is available for your app, it will automatically show the "Update" button.

5. Reset App Preferences

Many people change certain settings and permissions for apps, which can cause serious problems. Resetting app preferences restores all default settings without deleting your personal data.

The Best Way to Do It:

• Go to Settings > Apps.
• Click on the three dots in the top-right corner.
• Select Reset app preferences. This will reset all disabled apps, notification settings, and app permissions. Apps may ask for permissions again when you try to use them again. Allow the necessary permissions.

6. Factory Reset:

If you’ve tried all the other ways and still frustrated because of your lagging phone, a factory reset is the best option for you. But, it has its own cons. It will completely erase your all data, settings, and apps, making your phone like it was when you first got it. This fixes any software issues, files, or any hidden issues that have built up over time.

The Best Way to Do It:

WARNING: This will delete everything on your phone. Make sure you have a complete backup of all your photos, videos, contacts, and other important files.
Go to Settings, about phone and then factory reset. It will completely erase all data.

In conclusion, these secret code rarely help to speed up your phone. Understanding what codes like *#9900# do and don't do might not help much to improve your phone's performance. You can try cleaning up your storage, caches, and keeping your phone and its apps updated, it ensures that your phone runs fast and smoothly for years to come.