Root [Virgin Mobile/Sprint] [W.I.P] Unbrick Hardbricked f3

[JR44]

I've seen a couple of people on these forums stating they have hardbricked f3s (qualcomm hs-usb qdloader 9008). Well I think I might've found a solution but it requires a working phone and qpst. Anyone with a working f3 want to take the risk?

Working f3 users how to backup phone image (Might want to do a clean install of a rom just to be safe):

Spoiler

• Download and install QPST (not sure if I can link it)
• Open QPST Configuration
• (Optional skip if phone listed ) Click the ports tab and add a new port
• Click COM - USB/QC Diagnostic. It should state which COM port the phone is using and click OK.
• Click Start clients > Software Download
• Click the backup tab
• Click the second browse button
• A dialog appears asking where to save the file name the backup file unbrick or something along those lines
• Press the start button and wait until the status says Memory Backup Complete
• Close QPST and upload the image to your cloud based storage
• Post backup image link here and i'll test it with my bricked f3

I'm hoping this works

Edit: Forgot to mention the f3 has to be in DIAG mode which I have no idea how to put it into that mode sorry :\

Edit2: Putting the phone in download mode is the DIAG mode qpst needs

 

[Member1614188]

It just makes a backup file of your NV items, no? I did it just now, and should be safe to share. This is a decommissioned F3 (Mobile Number set to 000-000-0001/000-000-0002).

 

[JR44]

I'm hoping it works. If it doesn't then there's something else that needs to be added. Have a link to it?