How to Fix Failed qb_flash_singleimage()- sahara_download()- io error
If you are trying to flash a Qualcomm-based Android device using QFIL (Qualcomm Flash Image Loader), you might encounter an error message that says "Download Fail:Sahara Fail: QSaharaServer Fail: Process fail". This error indicates that there is a problem with the communication between your device and your PC, and it prevents you from flashing your device successfully. In this article, we will explain what this error means, what causes it, and how to fix it.
failed qb_flash_singleimage()- sahara_download()- io error
What is qb_flash_singleimage()- sahara_download()- io error?
QFIL is a free tool that allows you to flash Qualcomm-based Android devices. It supports two types of firmware: Flat build and Meta build. Flat build contains patch.xml in the same folder with other files, while Meta build contains contents.xml in the root of the folder. You need to select the appropriate firmware type and programmer file for your device before flashing.
QFIL also requires your device to be in EDL (Emergency Download Mode) or Qualcomm HS-USB QDLoader 9008 mode for flashing. This mode enables your device to communicate with QFIL and receive commands. You can enter EDL mode by using a test point, a special cable, or a software command, depending on your device model.
However, sometimes QFIL fails to flash your device and shows an error message that says "Download Fail:Sahara Fail: QSaharaServer Fail: Process fail". This error means that QFIL cannot establish a connection with your device or send data to it. Sahara is a protocol that QFIL uses to transfer data to your device. If Sahara fails, QFIL cannot proceed with the flashing process.
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Causes of qb_flash_singleimage()- sahara_download()- io error
There are several possible reasons why you might get this error when using QFIL. Here are some of the most common ones:
Incompatible firmware
If you are trying to flash a wrong firmware or a different variant of your device, you might run into this error. For example, if you have a Moto G6 Plus XT1926-7 and you try to flash a firmware for Moto G6 Plus XT1926-5, you will get a Sahara fail error. You need to make sure that you have the correct firmware for your device model and region.
Old QFIL version
You might also get this error if you are using an old version of QFIL that is not compatible with your device. QFIL is still in beta stage and it has many bugs and issues. The developers are constantly updating the tool and adding new features and fixes. You need to download the latest version of QFIL from our collection and try again.
QFIL standalone
There are two formats of QFIL: one that is co-installed with QPST (Qualcomm Product Support Tools) and one that is standalone. If you are using the standalone version of QFIL, you might encounter Sahara fail error. This is because the standalone version might not have all the necessary drivers and files for your device. You need to install the latest version of QPST [^2^ ) and use the QFIL that comes with it. QPST is a suite of tools that supports Qualcomm devices and provides various functions such as backup, restore, diagnostics, and flashing.
Incompatible programmer file
The programmer file is a binary file that tells QFIL how to flash your device. It is usually named something like prog_emmc_firehose_XXXX.mbn, where XXXX is the chipset model of your device. For example, if you have a Snapdragon 625 device, you need a prog_emmc_firehose_8953.mbn file. If you use a wrong or incompatible programmer file, you will get a Sahara fail error. You need to find the correct programmer file for your device in your firmware folder or online.
Space in file path
Another possible cause of this error is having a space in the file path to your firmware. For example, if you have your firmware in C:\Users\John Smith\Downloads\firmware, you will get a Sahara fail error. This is because QFIL cannot handle spaces in the file path and it will break the connection with your device. You need to remove any space in the file path or move your firmware to a different location without spaces.
Entering EDL too early
Finally, you might also get this error if you enter EDL mode too early before clicking Download in QFIL. This is because your device might timeout or disconnect from QFIL if you wait too long. You need to put your device into EDL mode just before clicking Download and make sure that it is recognized by QFIL as Qualcomm HS-USB QDLoader 9008.
Solutions for qb_flash_singleimage()- sahara_download()- io error
Now that you know the possible causes of this error, let's see how to fix it. Here are some solutions that you can try:
Use the correct firmware for your device
The first and most important thing to do is to use the correct firmware for your device. You need to download the firmware that matches your device model and region from a reliable source. You can check our collection of stock firmware for various devices or search online for other sources. Make sure that you download the complete firmware package and not just a single file.
Update QFIL to the latest version
The next thing to do is to update QFIL to the latest version available. You can download the latest version of QFIL from our collection or from the official website . The latest version of QFIL might have fixed some bugs and added support for new devices and features. You need to uninstall the old version of QFIL and install the new one on your PC.
Install QPST and use the QFIL that comes with it
Another solution is to install QPST and use the QFIL that comes with it. QPST is a suite of tools that supports Qualcomm devices and provides various functions such as backup, restore, diagnostics, and flashing. You can download the latest version of QPST from our collection or from the official website . You need to install QPST on your PC and run the QFIL that is located in C:\Program Files (x86)\Qualcomm\QPST\bin\QFIL.exe.
Try different programmer files in your firmware
Another solution is to try different programmer files in your firmware folder. The programmer file is a binary file that tells QFIL how to flash your device. It is usually named something like prog_emmc_firehose_XXXX.mbn, where XXXX is the chipset model of your device. For example, if you have a Snapdragon 625 device, you need a prog_emmc_firehose_8953.mbn file. Sometimes, your firmware might have more than one programmer file for different variants or models of your device. You need to try each one of them until you find the one that works for your device.
Remove any space in the file path to your firmware
Another solution is to remove any space in the file path to your firmware folder. For example, if you have your firmware in C:\Users\John Smith\Downloads\firmware, you need to move it to C:\Users\JohnSmith\Downloads\firmware or C:\firmware or any other location without spaces. This is because QFIL cannot handle spaces in the file path and it will break the connection with your device.
Put your device into EDL mode just before clicking DownloadAnother solution is to put your device into EDL mode just before clicking Download in QFIL. This is because your device might timeout or disconnect from QFIL if you wait too long. You need to enter EDL mode by using a test point, a special cable, or a software command, depending on your device model. You can check our guide on how to enter EDL mode for various devices . You need to connect your device to your PC and make sure that it is recognized by QFIL as Qualcomm HS-USB QDLoader 9008. Then, you need to click Download in QFIL and wait for the flashing process to complete.
Conclusion
In this article, we have explained what is qb_flash_singleimage()- sahara_download()- io error, what causes it, and how to fix it. We have provided six solutions that you can try to resolve this error and flash your Qualcomm-based Android device using QFIL. We hope that this article has been helpful and informative for you. If you have any questions or feedback, please feel free to leave a comment below.
FAQs
Here are some frequently asked questions about qb_flash_singleimage()- sahara_download()- io error:
What is QFIL?
QFIL is a free tool that allows you to flash Qualcomm-based Android devices. It supports two types of firmware: Flat build and Meta build. You need to select the appropriate firmware type and programmer file for your device before flashing.
What is EDL mode?
EDL mode is a special mode that enables your device to communicate with QFIL and receive commands. You can enter EDL mode by using a test point, a special cable, or a software command, depending on your device model.
What is Sahara protocol?
Sahara protocol is a protocol that QFIL uses to transfer data to your device. If Sahara fails, QFIL cannot proceed with the flashing process.
How do I know if I have the correct firmware for my device?
You need to download the firmware that matches your device model and region from a reliable source. You can check our collection of stock firmware for various devices or search online for other sources. Make sure that you download the complete firmware package and not just a single file.
How do I update QFIL to the latest version?
You need to download the latest version of QFIL from our collection or from the official website . You need to uninstall the old version of QFIL and install the new one on your PC. 44f88ac181
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