As promised, when I figured something out, I wanted to come back to this thread to hopefully help others.
I recently bought a Samsung 840 EVO 750 GB SSD for my other computer. I carefully went through the steps. I first Cloned my original HDD to the EVO SSD. Once in Windows 7 64, I installed the Samsung Magician 4.3 Software. I then did the Firmware update to EXT0BB6Q. After the reboot, I then switched on RAPID Mode. Everything worked great!
I then did a comparison between the 2 computers. Here is what I found :
On the computer that was just upgraded to the 750 GB EVO I checked regedit, found nothing, checked Windows\System32\RAPID, and found nothing different there either. Then I looked at Program Files (x86)\Samsung and found the difference between the 2 computers.
In that folder was a sub folder named RAPID,,, imagine that!
I double checked on the original EVO computer and under Program Files (x86)\Samsung I only had the sub folder named "Samsung Magician" there was no "RAPID" folder,,,
So I copied the folder to a USB drive and dropped a copy of it into my Program Files (x86)\Samsung, so I now had 2 sub folders "RAPID" and "Samsung Magician". I rebooted and then opened the Samsung Magician and RAPID was now working properly again. I have the Circle Icon next to the word RAPID on the Magician home page again. I clicked on it and there was my drive once again listed on the drop down list! I also read the notepad file or text file "RAPIDStatus" before rebooting and of course it had the information for the 750 GB EVO and this one is the 1 TB, but I went on the hopes it wouldn't raise a flag on that. I checked that file after the reboot and opening Magician and it updated that file to the 1 TB information and wiped all the 750 GB information out.
So in closing, it's all working again, I have RAPID mode showing in Magician, the drop down shows my Samsung EVO and the disable button is once again lit up should I want to try and disable RAPID Mode (which I don't
) !
I truly hope this helps anyone else who has been extensively trying to fix this issue. Since I did have to have it installed on another computer, I'm not sure if there is someway to get copies of the folder other than installing the EVO on another computer fresh and making a copy of the folder to a USB and then putting the EVO back into the original computer. That's a lot of writes and erases to the drive. But there must be a logical way to get it.
The Folder is named RAPID, there are 2 sub folders inside, 1 is "Cachefilter" and the other is "Tools" and then there are 2 note pad or text documents under those 2 sub folders called "OpenSourceAnnouncement" and "RAPIDStatus".
All total it's a 1.21 MB folder that you really need to once again get RAPID working in Magician 4.3 as it should!
Again I truly hope this helps a lot of folks out there,
Best of Luck