[Galaxy Note 4 Q&A, Help & Troubleshooting] C_dog_1:
Hello All,

First let me say thanks to all XDA Developers, and without this forum I would still be a pleb when it comes to unbricking. :highfive:

The link to QPST: androidbrick.com/download/latest-qpst-2-7-build-422-425-430-437-qfil-qualcomm-flasher/

(Sorry, I haven't passed 10 posts yet, so you have to manually enter into the address bar)

I came to this forum seeking answers to unbrick my hardbricked Note 4, and after many hours of heartbreak and headache, I have come across a tool called QPST.

This tool is used by Qualcomm, and if you read carefully through the accompanying documentation, you will find some interesting stamps - such as "Confidential" etc. ;)

While I am no expert in the use of QPST, from my own incomplete research I am convinced this tool can be used on any device which sports a Qualcomm chipset (Snapdragon etc.) to unbrick it from certain death.

I have not yet succeeded with my attempts at unbricking, but it is now only a matter of time and kind people pointing me in the right directions. :fingers-crossed:

I am looking for the right files to go in the "phone image" and "boot image" lines in the QPST Software Download program. :confused:

I hope we can all see the opportunity this tool represents and spread the word among the greater community, not just developers. :cool:

Edit:

Using Software Download:

Phone image files will have a .hex extension and I do not believe they can be found on sammobile. I still haven't found the right one.

Boot image files: I still don't know what they will look like. Likely a .hex file.

Using QFIL:

I suspect all these files can be acquired from a service ROM (whatever a service ROM is - I don't think it is a ROM for android as I know them). I am not completely sure of this however.

Using the flat build option will let you select the programmer. It will have a file name like:

prog_emmc_firehoseXXXX.mbn

(Replace XXXX with the correct numbers for your snapdragon. I don't know what the right ones for the Snapdragon 805 are, but I strongly suspect 8084, with a remote possibility of 8064. Edit: I don't know, don't take my word.

There are posts for other phones on XDA, I don't know if they use the 805 chipset or if the files are compatible.) <--- If anyone wants to research, feel free. Team efforts make a big job seem easy! Please post your results!

Accompanying your firehose file will be a bunch of other files in the same folder.

You will need two .xml files to go with the above (usually in the same folder), which will look like as follows:

rawprogram0XXXX.xml (here XXXX denotes some numbering system which will be determined by the internal memory of the device eg 16GB, 32GB, 64GB. I saw an example for a OnePlus One which had rawprogram0_64G.xml.

I'm NOT 100% SURE on this numbering system, as elsewhere on XDA I have come across different file names!

Here's the truncated link: androidbrick.com/ultimate-qualcomm-snapdragon-unbrick-guide-snapdragons-are-unbrickable-qhsusb_dload_qpst_qfil/)

patch0.xml

When I find the above, I will post or hassle an admin to post, as these will likely unbrick any Snapdragon 805. Happy hunting! :cool:

Here's a truncated link to XproZayd's thread, where a different avenue is explored (and where I got my idea about the 8084 number for firehose -- Remember, I could be wrong!)

xdaforums.com/note-4/help/unbrick-samsung-galaxy-note-4-sm-n910w8-t3249970

This thread is for discussing QPST and how to use it - if you have a hard bricked phone I am not able to help at this stage. However, should anybody find / 'acquire' the right files to use with QPST, we will all benefit.