My Android device YU Yuphoria is currently bricked and stuck in a bootloop. What I tried to do to cause this was that I first rooted the phone and installed TWRP. Then I installed Android Nougat on it, which was a success for the first few days but later got corrupted somehow. Now I'm stuck in a bootloop. Whenever I try to flash its stock ROM, it gives an error message "E: failed to mount". Infact, whatever I try to do in the Cynogen recovery mode, it gives this same error message. Can someone help me out of this?

  • So you need to flash it using a computer
    – esQmo_
    Mar 22 '17 at 17:43

You should try flashing the phone using a computer.

  • Download any firmware from this link. - all are for model Y5010a, since you didn't mention which model.

  • Unzip it and you'll find drivers, flash files and the flashing instructions.

  • Install drivers then follow the instructions for flashing.

Your​ phone should work fine now.


I thought it would help if I reproduce all flashing steps here

  • First download the Firmware, Flash tool and driver from above link

  • Extract the file (zip files) to desktop (You need to install winrar software or 7zip to Extract)

  • Open Driver folder and install Qualcomm_USB_Driver_Setup.exe file and wait until finish installation.

  • Open QPST.WIN.2.7_Installer-00430.1 folder, install setup.exe 

  • Now open QFIL from the "C:\Program Files\Qualcomm\QPST\bin" path.

  • Tick on Flat Build option

  • Go to Programmer Path and click on Browse.. button and choose prog_emmc_firehose_8916.mbn file

  • Click on Load XML... button and choose rawprogram_unsparse.xml file and then choose patch0.xml file from the Firmware folder

  • Now connect USB cable to the phone while holding​ volume up + volume down buttons.

  • Drivers should be installed. Just Click on Download button on the programm and wait until finish procedure.

  • Are you sure this would work...because I believe my partitions are corrupt. I had flashed the stock ROM using some different method, and I got a message like: FAILED (remote:flash write failure)
    – archity
    Mar 22 '17 at 19:33
  • Did you try already?
    – esQmo_
    Mar 22 '17 at 19:34
  • I haven't tried your above mentioned method...Will this method solve this corrupt partitions problem?
    – archity
    Mar 22 '17 at 19:34
  • If it's not hardware failure, I'm pretty sure it will. But your problem is simply due to software. So try this method and tell us
    – esQmo_
    Mar 22 '17 at 20:15
  • 1
    @archity It's not good to leave important information in comments, because they're prone to getting deleted, and they're not searchable for future visitors. Could you put together a summary of what you've learned and add it to your question?
    – Dan Hulme
    Mar 24 '17 at 10:46

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