The ap_root_g935.tar file is an essential firmware component used in Samsung Galaxy S7 (SM-G935) devices for flashing and repair purposes. However, users often encounter problems when using this file, whether during flashing, rooting, or updating their device. In this guide, we provide detailed troubleshooting steps to resolve issues related to ap_root_g935.tar effectively.
Understanding ap_root_g935.tar and Its Purpose
The ap_root_g935.tar file is a crucial system file that contains the Android operating system image and necessary root permissions for the Samsung Galaxy S7 Edge (SM-G935). This file is typically used in conjunction with tools like Odin to flash or root the device. Problems arise when users experience errors such as boot loops, Odin failures, or compatibility issues. Below, we explore common issues and their solutions.
Common Issues with ap_root_g935.tar and Their Fixes
1. Odin Fails to Recognize ap_root_g935.tar
Possible Causes:
- Outdated or incompatible Odin version
- Corrupt or incomplete firmware file
- Incorrect USB drivers
Solution:
- Update Odin to the latest version.
- Ensure that Samsung USB drivers are installed on your PC.
- Use a different USB port or cable.
- Re-download the ap_root_g935.tar file from a reliable source.
2. Device Stuck in Boot Loop After Flashing
Possible Causes:
- Corrupt system partition
- Incomplete firmware flash
- Rooting errors
Solution:
- Perform a factory reset via recovery mode:
- Power off the device.
- Press Volume Up + Home + Power buttons together until recovery mode appears.
- Select Wipe Data/Factory Reset.
- Reflash the stock firmware using Odin.
- If the issue persists, download a different firmware version.
3. Odin Stuck on “NAND Write Start” or “FAIL” Message
Possible Causes:
- Corrupted or incomplete firmware package
- Locked bootloader preventing flashing
- Incorrect PIT file
Solution:
- Try using a different firmware version.
- Ensure that OEM Unlocking is enabled in Developer Options.
- Use the latest Samsung firmware package for your model.
- If needed, include a matching PIT file for partition mapping.
4. Boot Image Verification Failure
Possible Causes:
- Incompatible firmware build
- Security Knox protection enabled
Solution:
- Disable Auto Reboot in Odin before flashing.
- After flashing, boot into Recovery Mode and manually reboot.
- Try an older firmware version that matches your device’s region.
5. Device Not Powering On After Flashing
Possible Causes:
- Hard-bricked device due to incomplete flashing
- Corrupt or missing bootloader files
Solution:
- Force reboot by holding Power + Volume Down for 10 seconds.
- If no response, boot into Download Mode (Volume Down + Home + Power) and reflash firmware.
- If the device remains unresponsive, use Samsung Smart Switch or visit a service center.
Best Practices to Avoid Issues with ap_root_g935.tar
To prevent common issues, follow these best practices:
- Download firmware from official sources (e.g., SamMobile, XDA Developers).
- Backup your data before flashing or rooting.
- Always use the latest version of Odin.
- Verify the firmware compatibility with your device model and region.
- Enable USB Debugging and OEM Unlocking in Developer Options.
By following these troubleshooting steps and best practices, you can effectively resolve any issues with ap_root_g935.tar and ensure a smooth flashing experience.