[SOLVED] Why Android Phone is Running Slow after OTA Update

[SOLVED] Why Android Phone is Running Slow after OTA Update

by Ravi Singh
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Why my Android is slow after updating software

In this guide, we will discuss why Android slowdowns after the update and how to fix the slow Android phone. The method explained to boost Android performance after an OS update is completely safe.

Android Phones tend to slow down with time and usage. That’s mostly because of hardware wears out. However, there have been several cases where android users experienced a slowdown in their Android phone performance just after OS update (OTA).

Now there could be several factors that may have affected your Android phone’s performance. It could be a bad OTA update or outdated files in cache and, not to mention, malware.

Why my Android is slow after updating software

Why Android Phone is Slow and Unresponsive?

One popular way of resolving slow Android phone is resetting Android phone to factory settings. However, this erases all data from your device. But I don’t recommend it unless you have tried everything.

As per my experience over the last 8 years, besides regular hardware wear out, an Android phone’s performance also degrades due to cluttered and outdated files stored in the “System Cache” partition, especially after the OTA update.

Therefore, after updating the device, whether you updated it using your PC or through OTA, you must wipe your Android device’s Cache Partition. This lets your Android device move new updated app and system files to the Cache Partition. I assure you that your Android device doing this will speed up your Android device significantly.

Is Wiping Cache Partition Safe and Does it Boost Android Performance?

Wiping Cache partition is completely safe. The cache partition contains files that are frequently accessed by the Android system. These files in Cache partition helps Android perform faster while multitasking.

Therefore, you can proceed further without thinking twice and make your android phone faster again.

Steps to Fix Slow Running Android Phone

I have mentioned complete steps that are the same for almost all popular Android device manufacturers such as,

  • Samsung
  • One Plus
  • Xiaomi
  • Vivo
  • Realme
  • Oppo
  • Vivo
  • Motorola
  • Huawei
  • Nokia
  • Honor
  • LG and a few more.

Please follow the steps carefully to avoid any error.

Things You Need

Step 1: Check ADB Commands

After installing and configuring the ADB drives, check whether the drivers are working or not. Type following command in the command prompt or Terminal


If you get an output, it means drivers are configured and you can proceed to the next steps. If you get ADB not recognized or supported, read how to install ADB drivers on Windows and Mac.

Step 2: Turn ON USB Debugging

  • Unlock your Android Phone and go to About Phone or About Device section
  • Look for Build Number. If it’s not there, try to explore options and find the build number
  • Tap on it for 6-7 times continuously until you see Developer Options enabled
  • Now go back to Settings and look for Developers Options
  • Under Developer Options, scroll down and turn ON ‘USB Debugging
  • USB Debugging

Step 3: Wipe System Cache Partition

  • Connect your Android device to the PC via USB cable
  • Allow prompt on your Android screen to grant ‘USB Debugging‘ permission
  • Allow USB debugging
  • Then open the Terminal in Mac or Command Prompt in Window
  • Type following command followed by the Enter/Return key
adb devices
  • If you see a device with a random alphanumeric number, it means your Android phone is connected and recognized.
  • Type following command followed by the ‘Enter/Return‘ key
adb reboot recovery
  • Your Android phone will boot into Recovery mode immediately
  • Now use your Android Phone’s Volume rocker button to move the selection to Wipe cache partition
speed up your Android phone after update
  • Press the Power button to proceed with wiping your Android’s cache partition
  • Use Volume key to select Yes and press Power button to confirm Wipe cache partition

It takes only a few seconds (hardly 3-4 seconds) and cache partition is completely wiped.

Now move the selection to the Reboot system now and press the Power button. Wait for your Android to reboot completely.

It may take more time than usual as your Android rebuilds the cache partition. After boot, you can use your device normally and can experience faster performance.

From now on, remember to Wipe cache partition after every minor or major update OTA update to keep your Android performance constant.

Make Android Phone Faster without using PC

Alternatively, you can use your Android Phone’s key combination to boot into Recovery mode. For more details on the key combination, visit this XDA post.

Then follow the steps above to Wipe cache partition followed by a reboot.

In case this doesn’t fix the slowdown, the problem might be related to some app that you have installed. If you are able to find the app, uninstall it. Otherwise, you need to reset your Android device.

Quick Tip: Always backup your Android phone before resetting or factory reset as it removes all settings data from your Android devices. Once data is lost, it can’t be recovered. Therefore, be cautious and patient while performing such operations with your Android device.

Once again, thanks for reading, hope this was helpful and you were able to fix your slow Android phone. For more, you can visit our YouTube channel for video guides and follow us on Facebook & Twitter.

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