I have never seen a specific RAW .bin file. I'm 90% sure the .bin file for the Pro will work. Remember, there are a ton of exit options with these firmware changes. So don't be afraid to experiment. Beware that it's all very time consuming, so don't start a firmware project when you have a shoot the next day. Give yourself a week so you can take your time. KEEP A LOG FILE of everything you do. Video is best.
Here's the log of a fellow InspirePilots member JameyHo. He rolled back from v1.11.xx on an Inspire 1 PRO to v1.09.xx (which has only slight NFZ differences from v1.08.xx). His instructions have been slightly modified by me for better understanding. His research is invaluable.
======================================== PREFACE ===============================================
So, it seems for me, the firmware files are at issue. It looks like DJI has different firmware files (albeit minor differences) for the x5 and the V2/Pro version (which I have). Just using the regular FC550 files on the V2, did not work most of the time. After much digging, I found the links to the correct Pro firmware, hiding in plain site on DJIs site. The versions from Panorobot in your links, must be slightly different than these downloaded directly from DJI, but I haven't compared them to verify that. I was able to find these versions through a lot of digging, and every time I've used these files on my AC, they've worked, as long as I gave them enough time.
https://dl.djicdn.com/downloads/inspire_1/20161215/WM610_FC550_FW_V01.10.01.40.bin <- this one was tough to find as the folder naming convention was different.
https://dl.djicdn.com/downloads/inspire_1_pro/WM610_FC550_FW_V01.09.01.30.zip - RC 1.7.8 compatible
https://dl.djicdn.com/downloads/inspire_1_pro/WM610_FC550_FW_V01.09.01.10.zip - RC 1.6
====================================== INSTRUCTIONS ===========================================
The downgrade from 11 has to be done with the debug file, and it takes over an hour. I left mine alone for almost 2hrs, before it finally stuck, and then it was down to 1.10. From there, I loaded up 1.09 and was able to get it done in about 30mins. I still can not get 1.08 on this bird, so I'm gonna just stick to 1.09.01.30 and be done with it till I have another free day to mess with it. I had to fly today and everything worked, but my connections were no better than they were on 1.11. I was unable to get it to go directly to any version from 1.11 other than 1.10.
As for the controllers, I did follow your directions in the video, and downgraded the firmware as shown, which is how I got the angry beeps and red flashing light the first two times. After looking into unbricking remotes, that's when I found the magic file for the RC's, and had to use that and the firmware file on a usb stick to get it unstuck and back to 1.6. After that, I had to upgrade to 1.7.8 (in DJIgo) to get them both to re-connect to the AC at 1.09.01.30.
My next step, after my shoots this weekend, is to roll back the RCs in DJIgo to 1.6 (btw, the app gives me the 1.5.8 option on both RCs) make sure they connect still. Then try to take the AC back to 1.09.01.01 with the proper Inspire1Pro file I downloaded from the link above and then try 1.08 again. If my RCs connect to 1.09.01.10 then I should be able to connect to 1.08 as well, and I'll start a rollback and let it sit for 2hrs again.
The big thing I've noticed, is these downgrades take over an hour, as several of my attempts, the log states it was still in the middle of upgrading. If I have any more success next week, I'll let you know what I've done, but for now, I need to get back in the air and pay some bills.
Thanks agian for your help.
====================================== END INSTRUCTIONS ===================================
Hopefully, this guy has success going back to v1.08 and RC v1.6. That's where the true Nirvana lies.
And remember, many of these procedures have to be attempted multiple times before they "stick."
Good luck.
D