So, I have little news here introducing the MsmDownloadTool V3.0.6 --OnePlus3_16_A.041.170208 full package tool to do the full reset on your OnePlus 3.
If I have to be honest this is not my package so use it on your own risk.
It wipes all the partritions and downloads a completely new firmware!.
This is from OnePlus tech guys, what didn't work for me, so I had to send my phone to RMA process.
Don't ask where did I get this I put a hand on my heart - I did not steal it or anything but it's original stuff, trust me.
The entire process how to restore phone is same as the Naman Bhalla writes in his Mega Unbrick Guide, thanks him for the MsmDownloadTool guide but again - it didn't work out for me as well, but who knows - this is still the same thing as this guy one, but just read deal from OnePlus.
1.) Drivers : download the drivers for the Snapdragon
2.) Recovery Tool : download the recovery tool
Step 2 :- Extract Drivers and Recovery Tool files in any folder (preferably desktop).
Step 3 :- Turn off Driver Signature Enforcement. To do so, Paste the following command into the Command Prompt window and press Enter:
bcdedit /set testsigning on
And after that just restart your pc and test mode will show up.
Step 4 :- Press the power button for 40 seconds to turn off the phone.
Step 5 :- Press only volume up button for a few seconds and while keeping it pressed,connect your phone to PC.Keep volume up pressed till your device shows in device manager as [Unknown Device,QHUSB_BULK (under Unknown Devices) or Qualcomm HS USB (under COMs and Ports)].
Step 6 :- Right Click on your device in the device manager and select Update Device Software. Choose the .inf file and select Qualcomm 9008 from the listed devices.
Step 7 :- When the device shows as Qualcomm 9008 ,go to the extracted Recovery Package and run the MSM Download Tool as administrator.
Step 8 :- Click start at top left corner and wait for it to finish (green text will come).
Step 9 :- Disconnect phone from PC and boot into system when download is complete
Step 10:- ENJOY!
DOWNLOAD IT NOW!
And if it asks for password when you click link then you can find it here
All credits goes to OnePlus! Thank you!