[Samsung Galaxy S8 Questions and Answers] BLING2X:
I am a refurbisher of the Samsung Galaxy S8 Exynos and I have about 100 devices with autofocus issues with the rear facing cameras.

Relating to the *#34971539#.......... Does anyone know what the top line that says "Cam FW Ver: xxxxxxxxxxx" means? I understand that the 2nd line that says "Load FW Ver" means the current version that the camera is using, and I also believe to understand that the 3rd line that says "Phone FW Ver" is the firmware version located in the ROM, but what does the top line that says "Cam FW Ver" mean? Please let me know if anyone knows and let me know if I am incorrect in understanding that the 2nd line "Load" means current version being used and 3rd line "Phone" is the ROM firmware version.

The reason that I am asking is because

EVERY

S8 with this issue has the same rear camera firmware version, so I have concluded that this issue is due the following:

The issue is unique to only cameras that have the 1st top line which is the "Cam FW Ver" be a specific firmware version (which is F12LLJA00VM) (so the top line reads "Cam FW Ver: F12LLJA00VM"). My S8 devices with rear facing cameras with F12LLJA00SM never have autofocus issues. So in essence, here below is the list of the firmware versions on my defective S8 exynos devices vs my good S8 exynos devices:

S8 Exynos Devices that the rear facing camera will not focus:

Rear Camera (Main)

Cam FW Ver : F12LLJA00VM

Load FW Ver : F12LLKL01GM

Phone FW Ver : F12LLKL01GM

S8 Exynos Devices that never have trouble focusing:

Rear Camera (Main)

Cam FW Ver : F12LLJA00SM

Load FW Ver : F12LLKL01GM

Phone FW Ver : F12LLKL01GM

Any help would be appreciated. If you own a exynos Samsung S8 then please share your Cam FW Version (via just a comment or via the .bin file if you have or CAN TELL ME WHICH FILES on S8 TO RENAME TO CamFW_Main.bin and CamFW_Companion.bin. No one seems to have the problem that I am facing so if you have ever figured out which files is the Maincam file and which file is the companion file then I would greatly appreciate it. This whole comment might just be because I am using the wrong .bin file to try to update the firmware so even though I get a success message and reboot, the devices still revert back to F12LLJA00VM instead of F12LLJA00SM. if you have ever had the issue of the autofocus to stop working. The F12LLJA00VM devices get returned to me all of the time due them not focusing and being really blurry. The F12LLJA00SM devices never have this issue. I know that I could just replace the cameras and this will probably fix the issue, but I am trying to fix this issue without having to open every device and replace the camera (plus i'm not sure if replacing the camera will even fix this issue, so maybe someone can tell me if that is even a solution at all or if the motherboard is the issue).

I have been searching for nearly 14 hours continuous on how to fix this.

I have tried the following:

I have tried flashing different firmware with ODIN, making the phones have the same firmware, and even older or newer firmware, but the phone firmware/build does not make a difference to camera firmware version.

I tried rooting the devices to gain access to the system files so that I was able to copy the /system/vendor/firmware files from the good device to the defective devices, and even tried updating via the *#34971539# method but this did not change the version from F12LLJA00VM to F12LLJA00SM

I tried the *#34971539# and updating the firmware via all 3 options via the steps required to make all 3 options click-able (Default FW Write, Phone to CAM FW Write, and the other Phone to CAM FW Write 73CX) but neither of those changed the top line as discussed at the top of my post.

Only option that I can think of trying if no one has any solution:

Although I was trying to avoid the labor in doing this to hundreds of devices, I will try swapping a camera from a good device to a bad device and see if that fixes my problem and/or changes the Cam FW Ver to F12LLJA00SM, and if that does work then I will need to buy several cameras and test them before hand to see if they are F12LLJA00SM or F12LLJA00VM and then turn around and (maybe) fight with sellers to return the cameras that I don't want due to this strange problem I am facing. The worst of this whole fiasco is sometimes the bad cameras do actually focus, so it has taken me months to figure this much out due to the fact that F12LLJA00VM cameras work sometimes but stop focusing other times, whereas F12LLJA00SM cameras never act up which is what I am aiming for.

BTW: any help that results in a solution for me to fix these 100 or so S8 devices via software and prevent me from having to buy and spend countless hours to replace all of the cameras on my S8 phones will result in either $250 prize or a free S8 phone that is refurbished to look brand new with a good rear facing camera/firmware ;)