DO NOT EVER - EVER - EVER - EVER - EVER - UPDATE YOUR FIRMWARE !!!
EVER SINCE 1.1.5.2 - I CANNOT DOWNGRADE !!
IT DOES NOT SEE THE OLD FIRMWARE ON MY USB DRIVE – BUT DOES SEE THE PRINT FILES !!
IF YOU HAVE 1.1.5.2 – STAY THERE !! YOU WILL LOSE YOUR CAMERA ACCESS IN 1.1.5.5 !!!
STOP DOING STUPID **** !!!
NOBODY ASKED YOU TO **** UP OUR PRINTERS !!! SO STOP IT !!! SERIOUSLY !!!
Nobody asked you to shout! We all make mistakes, even Creality… Who needs the camera?
I understand the frustration, and frankly, this is exactly the kind of warning that helps other users avoid getting trapped by a bad firmware release.
The camera-access issue on 1.1.5.5 appears to be consistent with other user reports, especially where browser or local camera access worked on earlier firmware and then failed after the update. That is not a minor annoyance. That is a firmware regression affecting a feature people reasonably expected to keep.
I would be slightly careful with one point: I would not assume downgrade is permanently blocked just because the printer does not see the old firmware file on the USB drive. If the USB drive still shows print files, then the printer is mounting the drive. That points more toward the firmware file not being recognized as a valid update image, or the printer rejecting that package, rather than a simple USB-drive problem.
That said, the larger point stands. This is the recurring failure pattern with Creality and a lot of low-cost Chinese consumer 3D-printer manufacturers: ship the hardware, push firmware changes with poor documentation, perform weak regression testing, and let paying customers discover which functions were broken after the fact. That is not disciplined engineering. That is field-debugging at the customer’s expense.
I saw this become normalized years ago in the Microsoft Vista era, where customers, OEMs, and driver vendors absorbed the pain of compatibility failures after release. The industry learned that it could ship first, patch later, and make the customer part of the test process. Creality did not invent that behavior, but they are a current example of it in the 3D-printer market.
So yes, thank you for posting the warning. A public service announcement like this is useful, especially for users who rely on camera access, local control, or known-good printer behavior and do not want a firmware update silently changing the machine underneath them.
I always do upgrades and never have issues. If you need to roll back, rename the image file to be a higher number than the one you are replacing.
hi, try “http://IP-ADDRESS:4408/camera.html” out.
I’ve always updated and I’ve only needed to back grade once and it was dead easy.
You can work around this by simply changing the version number in the file name you downloaded to something higher than the firmware in the printer. Mind you: only change the version number in the file name. Nothing else.
After you do this, the printer will treat the firmware on the stick as an upgrade and install it as normal (thereby actually downgrading your firmware). Oh, and your thumb drive needs to be empty (except for the firmware); so no print files on it. And it needs to be formatted exFAT.
Nope http://ip-address:4408/camera.html” stopt also working after few minutes
I am currently running ver 1.1.5.5 on my K2 combo with no problems. Camera working OK.
Bill
I had the same problem. But now with the updated version i have the camera back😍
You have to remove all the cache, logs and temp files from the software. C:\Users\yourname\AppData\Local\Creality
I upgraded mine and its been terrible i went from flawless prints in asa and abs to failed prints in pretty much all filaments.
Also couldn’t roll back firmware either used provided usb and brought a small usb incase it was size sensitive no luck, so now it’s pretty much gathering dust in the corner. I’ve wasted rolls of filament at this point,
Hi, the last firmwares does not permits to re-install or downgrade the firmware in any way.
You have to do this. Download the firmware you want to install and rename it with a number higher than the one installed. So, if your installed firmware is CR0CN240110C10_R_202605081127_ota_img_V1.1.5.5.img you have to rename it CR0CN240110C10_R_202605081127_ota_img_V1.1.5.6.img
Put it in a USB drive and the printer will recognize and install it!
Don’t mind about the wrong name of the firmware’s file, once installed, you will find the correct name in the printer’s info.
Let me know if it works (but it does!) 
That’s intentional. You can buy the “new” K2 Plus-C which has the camera option installed.
@daveyk they will fix that with an update… Some time ago they had the same problem with the older version of the K1 Max, after a Firmware update it was fixed (took them long time 
)…
I guess I was just in one of those modes…. still it would be funny.
There are COUNTLESS users like myself that have PROPERLY updated their firmware successfully.
Your experience is not the same as the masses.
Perform a full factory reset and use the recommended procedure TO THE LETTER.
… yup, and there were countless users that reported loosing connectionn to the camera in the past… despite on having updated to the latest firmware and following the procedure to the letter…