Obtaining the Updated Files

Oct 13, 2025 by wbrum.org 3 views

Introduction

As you may be aware, the Android 10 operating system has presented a significant challenge for developers and users alike. One of the most pressing issues is the incompatibility of certain modules with the new OS. In this article, we will delve into the workaround for Android 10, specifically focusing on the update of /apex/com.android.tzdata/etc files.

Understanding the Issue

The issue at hand is not a new one, and it has been discussed extensively in the past. However, for the benefit of those who may be new to this topic, let's briefly summarize the problem. The /apex/com.android.tzdata/etc files, which are crucial for time zone data, are not compatible with Android 10. This incompatibility has led to various issues, including but not limited to, incorrect time zone displays and calendar errors.

The Solution: Updating `/apex/com.android.tzdata/etc` Files

The solution to this problem lies in updating the /apex/com.android.tzdata/etc files. Specifically, we need to update the following files:

tz/tz_version
tz/tzdata
icu/icu_tzdata.dat

These files can be obtained from the Android Open Source Project (AOSP) repository. The repository provides the updated files for various Android versions, including Android 10, 11, 12, 13, and 14.

Obtaining the Updated Files

To obtain the updated files, you can visit the following links:

Creating a Module for Android 10

For those who are interested in creating a module for Android 10, I have created a module that works fine on the OS. You can download the module from the following link:

tz-v3.zip

Conclusion

In conclusion, the workaround for Android 10 involves updating the /apex/com.android.tzdata/etc files. By obtaining the updated files from the AOSP repository and installing them on your device, you can resolve the time zone data issues that are prevalent on the OS. I hope this article has provided you with a comprehensive guide to resolving this issue and has helped you to create a module for Android 10.

Additional Resources

For further information on this topic, you can refer to the following resources:

Android Open Source Project (AOSP) repository: https://android.googlesource.com/
Android 10 documentation: https://source.android.com/docs/android-10
Time zone data documentation: https://source.android.com/docs/timezone

Frequently Asked Questions

Q: What is the issue with Android 10? A: The issue with Android 10 is that the /apex/com.android.tzdata/etc files are not compatible with the OS, leading to time zone data issues.

Q: How do I update the /apex/com.android.tzdata/etc files? A: You can obtain the updated files from the AOSP repository and install them on your device.

Q: Can I create a module for Android 10? A: Yes, you can create a module for Android 10 by downloading the updated files from the AOSP repository and installing them on your device.

Q: Where can I find the updated files? A: You can find the updated files on the AOSP repository at the following links:

Android 10: https://android.googlesource.com/platform/system/timezone/+/refs/heads/android10-dev
Android 11: https://android.googlesource.com/platform/system/timezone/+/refs/heads/android11-dev
Android 12: https://android.googlesource.com/platform/system/timezone/+/refs/heads/android12-dev
Android 13: https://android.googlesource.com/platform/system/timezone/+/refs/heads/android13-dev
Android 14: https://android.googlesource.com/platform/system/timezone/+/refs/heads/android14-dev
Workaround for Android 10: A Comprehensive Guide =====================================================

Q&A: Frequently Asked Questions

Q: What is the issue with Android 10? A: The issue with Android 10 is that the /apex/com.android.tzdata/etc files are not compatible with the OS, leading to time zone data issues.

Q: How do I update the /apex/com.android.tzdata/etc files? A: You can obtain the updated files from the Android Open Source Project (AOSP) repository and install them on your device.

Q: Can I create a module for Android 10? A: Yes, you can create a module for Android 10 by downloading the updated files from the AOSP repository and installing them on your device.

Q: Where can I find the updated files? A: You can find the updated files on the AOSP repository at the following links:

Q: What are the benefits of updating the /apex/com.android.tzdata/etc files? A: Updating the /apex/com.android.tzdata/etc files will resolve the time zone data issues that are prevalent on Android 10. This will ensure that your device displays the correct time zone and calendar information.

Q: How do I install the updated files on my device? A: To install the updated files on your device, you will need to follow these steps:

Download the updated files from the AOSP repository.
Extract the files to a folder on your device.
Copy the files to the /apex/com.android.tzdata/etc directory on your device.
Restart your device to apply the changes.

Q: Can I use a third-party app to update the /apex/com.android.tzdata/etc files? A: Yes, you can use a third-party app to update the /apex/com.android.tzdata/etc files. However, be cautious when using third-party apps, as they may not be compatible with your device or may contain malware.

Q: What are the risks of updating the /apex/com.android.tzdata/etc files? A: The risks of updating the /apex/com.android.tzdata/etc files include:

Data loss: Updating the files may result in data loss if you do not backup your device before making the changes.
Device instability: Updating the files may cause device instability if the files are not compatible with your device.
Security risks: Updating the files may expose your device to security risks if the files are not from a trusted source.

Q: How do I backup my device before updating the /apex/com.android.tzdata/etc files? A: To backup your device before updating the /apex/com.android.tzdata/etc files, you can follow these steps:

Connect your device to a computer using a USB cable.
Enable USB debugging on your device.
Use a backup app to backup your device's data.
Save the backup to a secure location.

Q: Can I roll back to the previous version of the /apex/com.android.tzdata/etc files? A: Yes, you can roll back to the previous version of the /apex/com.android.tzdata/etc files. To do this, you will need to follow these steps:

Download the previous version of the files from the AOSP repository.
Extract the files to a folder on your device.
Copy the files to the /apex/com.android.tzdata/etc directory on your device.
Restart your device to apply the changes.

Q: What are the system requirements for updating the /apex/com.android.tzdata/etc files? A: The system requirements for updating the /apex/com.android.tzdata/etc files include:

Android 10 or later
A device with a compatible processor
A device with a compatible operating system
A device with a compatible storage system

Q: Can I update the /apex/com.android.tzdata/etc files on a rooted device? A: Yes, you can update the /apex/com.android.tzdata/etc files on a rooted device. However, be cautious when making changes to your device's system files, as this may cause device instability or security risks.

Q: What are the limitations of updating the /apex/com.android.tzdata/etc files? A: The limitations of updating the /apex/com.android.tzdata/etc files include:

The updated files may not be compatible with all devices.
The updated files may not be compatible with all operating systems.
The updated files may not be compatible with all storage systems.

Q: Can I update the /apex/com.android.tzdata/etc files on a device with a custom ROM? A: Yes, you can update the /apex/com.android.tzdata/etc files on a device with a custom ROM. However, be cautious when making changes to your device's system files, as this may cause device instability or security risks.

Q: What are the best practices for updating the /apex/com.android.tzdata/etc files? A: The best practices for updating the /apex/com.android.tzdata/etc files include:

Backing up your device's data before making changes.
Using a trusted source for the updated files.
Following the instructions carefully.
Testing the updated files before applying them to your device.

Q: Can I update the /apex/com.android.tzdata/etc files on a device with a locked bootloader? A: No, you cannot update the /apex/com.android.tzdata/etc files on a device with a locked bootloader. To update the files, you will need to unlock your device's bootloader.

Q: What are the consequences of not updating the /apex/com.android.tzdata/etc files? A: The consequences of not updating the /apex/com.android.tzdata/etc files include:

Time zone data issues.
Calendar errors.
Device instability.
Security risks.

Q: Can I update the /apex/com.android.tzdata/etc files on a device with a custom kernel? A: Yes, you can update the /apex/com.android.tzdata/etc files on a device with a custom kernel. However, be cautious when making changes to your device's system files, as this may cause device instability or security risks.

Q: What are the system requirements for updating the /apex/com.android.tzdata/etc files on a device with a custom kernel? A: The system requirements for updating the /apex/com.android.tzdata/etc files on a device with a custom kernel include:

A device with a compatible processor.
A device with a compatible operating system.
A device with a compatible storage system.
A device with a custom kernel.

Q: Can I update the /apex/com.android.tzdata/etc files on a device with a locked bootloader and a custom kernel? A: No, you cannot update the /apex/com.android.tzdata/etc files on a device with a locked bootloader and a custom kernel. To update the files, you will need to unlock your device's bootloader and flash a compatible kernel.

Q: What are the best practices for updating the /apex/com.android.tzdata/etc files on a device with a custom kernel? A: The best practices for updating the /apex/com.android.tzdata/etc files on a device with a custom kernel include:

Backing up your device's data before making changes.
Using a trusted source for the updated files.
Following the instructions carefully.
Testing the updated files before applying them to your device.

Q: Can I update the /apex/com.android.tzdata/etc files on a device with a locked bootloader and a custom kernel using a third-party app? A: No, you cannot update the /apex/com.android.tzdata/etc files on a device with a locked bootloader and a custom kernel using a third-party app. To update the files, you will need to unlock your device's bootloader and flash a compatible kernel.

Q: What are the system requirements for updating the /apex/com.android.tzdata/etc files on a device with a locked bootloader and a custom kernel using a third-party app? A: The system requirements for updating the /apex/com.android.tzdata/etc files on a device with a locked bootloader and a custom kernel using a third-party app include:

A device with a compatible processor.
A device with a compatible operating system.
A device with a compatible storage system.
A device with a custom kernel.
A third-party app that supports updating the /apex/com.android.tzdata/etc files.

**Q: Can I update the