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Old 08-06-2016, 01:14 PM   #1
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Default HTC 816w (A5_DUG) Unbrick from Hard-Bricked (9008)



HTC 816w (A5_DUG) Unbrick from Hard-Bricked (9008)

Unbrick Htc 816w (A5_DUG)
Dead Boot-Loader (9008)

Symptoms of Dead Boot-Loader
--------------------------------------------------------------
Due to corruption of the Boot-Loader by many reasons,
Qualcomm"><font color=Qualcomm" /> Qualcomm">Qualcomm
devices enters mode called (Qualcomm Emergency Download Mode),
So, when you connect the device to PC, You'll see something like this in the device manager,


------------------------------------------

Download Section
------------------------------------
Here is the full mmcblk0.img backup i've made and tested myself to unbrick alot of 816W,

mmcblk0.img

-----------------------
Here is the tool we're going to use to write the img file into theSD card,

Win32DiskImager
----------------------------


Unbrick Guide
---------------------------
Summary of the process
-------------------------------------------------
We will write an backup of mmcblk0 from a working device (same as the dead one) to an SD Card (same size as the internal memory),
Then we put that SD into the phone and let it boot from the SD Card,
Then we flash the phone with it's Official Firmware,
That's it


Detailed Guide
------------------------------
1. Go to the Download section and download both (mmcblk0.img and win32diskimager),
2. Connect 8GB SD Card to PC via SD Card Reader,
3. Setup Win32DiskImager and Run it,
4. From Win32DiskImager do as this image,




5. Just let it finish, Then disconnect the SD Card,
6. Make sure the device's battery is well charged,
7. Put the SD Card into the phone,
8. Now try to boot into bootloader mode by pressing,
Vol- & Power button
9. After few seconds phone should boot into bootloader mode,
10. Now flash your phone according to your device info and case
(S-OFF, S-ON, SuperCID, BL Locked or Unlocked)
11. After flashing process finish, Your phone now is bootable working as it should be,
12. There is no 12, we're done ..

------------------------------------------------------

Final Word
---------------------
This method not only works with 816w, it should work for allQualcomm devices, but you'll need the right mmcblk0.img backup.
I have tested this method myself with 3 phones, 2 of 'em are working fine now,
the third one powered on but it has a faulty EMMC so, it doesn't accept flashing, and here's one of the working,


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Old 08-06-2016, 01:43 PM   #2
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Default HTC 816w (A5_DUG) Unbrick from Hard-Bricked (9008)

Here is how to read mmcblk0.img form a working phone,

1.Root the phone,
2. Install BusyBox
  • HTC devices doesn't accept regular "busybox",
    so, we have to install it via "BusyBox on Rails",
    and here is the premium version,

    BusyBoxOnRails
3. Put an SD Cardin the phone(8 or 16GB), then enable "USB Debugging",
4. Connect phoneto PC and run this commands from PC one by one,
  • adb shell
  • su
  • dd if=/dev/block/mmcblk0 of=/sdcard2/mmcblk0.img
5. Now reading process started and you have to wait for it to finish,
6.After process finish, you will have the "mmcblk0.img" file in your SD Card, Now just copy this file to your PC and follow the rest of the guide,

>>DONE
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