# How to undo the upgrade to 1.1.1 **URL:** \ **Category:** Controller (Buildbotics) Discussion\ **Created:** [January 4, 2023, 5:58pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863 "2023-01-04T17:58:06Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Ranfy](https://avatars.discourse-cdn.com/v4/letter/r/eb9ed0/32.png) [@Ranfy](https://forum.onefinitycnc.com/u/Ranfy)\ **Post date:** [January 4, 2023, 5:58pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/1 "2023-01-04T17:58:06Z")
How do I undo the upgrade to 1.1.1? And should I go back to the previous version or the new 1.2? ---
**Author:** ![helibuff](https://avatars.discourse-cdn.com/v4/letter/h/f05b48/32.png) [@helibuff](https://forum.onefinitycnc.com/u/helibuff)\ **Post date:** [January 4, 2023, 6:06pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/2 "2023-01-04T18:06:03Z")
Have a look at this page you will find all the info for you > [@Firmware Update 1.2 Beta (12/5/22) (Outdated Firmware)](https://forum.onefinitycnc.com/t/firmware-1-2-beta-new/17612): > > Updated 1/31/23 THIS IS BETA FIRMWARE. DO NOT INSTALL IF YOU ARE IN A PRODUCTION SITUATION. This release helps us collect data and ensure there are as few bugs as possible. Read below before getting to the download button at the bottom: A little background. Firmware 1.0.9 was the longest running firmware we’ve had up since release. It was solid, relatively bug free and very stable. We worked hard on 1.1.0-1.1.1 to add many new features and build on future additions to the firmware. We did… ---
**Author:** ![Wayne](https://avatars.discourse-cdn.com/v4/letter/w/0ea827/32.png) [@Wayne](https://forum.onefinitycnc.com/u/Wayne)\ **Post date:** [January 4, 2023, 6:39pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/3 "2023-01-04T18:39:08Z")
Hellbuff, I installed the 1.1.1 and am sorry I did. All I have had was problems. I am waiting for my Anker so I can reflash the SD Card to either 1.0.9 or 1.2. I have not decided yet but have both. Once I installed 1.1.1 I get error messages and cannot cut. So I am sitting and doing nothing. ---
**Author:** ![Borgorl](https://avatars.discourse-cdn.com/v4/letter/b/87869e/32.png) [@Borgorl](https://forum.onefinitycnc.com/u/Borgorl)\ **Post date:** [January 4, 2023, 6:46pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/4 "2023-01-04T18:46:35Z")
Before I start taking apart the controller and installing software to flash back and update manually, do we have any idea when 1.2 will be released (after beta) for wifi update? ---
**Author:** ![Orthobill13](https://avatars.discourse-cdn.com/v4/letter/o/9dc877/32.png) [@Orthobill13](https://forum.onefinitycnc.com/u/Orthobill13)\ **Post date:** [January 4, 2023, 6:53pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/5 "2023-01-04T18:53:22Z")
Regarding flashing… I had gone from 1.0.9 to 1.1.1, had issues. I went back to 1.0.9 but never flashed. I understand that you can go from 1.0.9 to 1.2 but I was concerned about having any residual issues from the back and forth, and wanted both a clean install and clean peace of mind. I followed the instructions and flashing the SD card is actually pretty easy. I was sure to follow the step 11 after re-booting which is reseting the configuration to the proper machine. I then took a few mins and made sure all my settings were correct. The whole process took around 20 mins, and for as much time as I use this machine, I thought it was worth it. Just FYI to say the flash was pretty easy in my opinion. ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [January 4, 2023, 7:10pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/6 "2023-01-04T19:10:54Z")
> [@How to reflash the operating system on the Onefinity BB controller (Full SD card image)](https://forum.onefinitycnc.com/t/how-to-reflash-the-operating-system-on-the-onefinity-full-sd-card-image/5659): > > There are times when you may have a file go corrupt or (advanced) users start poking under the hood and may need to reflash the entire vanilla image to the sd card. This process is essentially reinstalling the Onefinity operating system from scratch. This process is only for advanced users OR if you were directed to this via support. If you are looking to update the firmware from a controller that is working properly, do not use this method, look for the update file in the ‘firmware updates’ s… ---
**Author:** ![JAKEC](https://avatars.discourse-cdn.com/v4/letter/j/b19c9b/32.png) [@JAKEC](https://forum.onefinitycnc.com/u/JAKEC)\ **Post date:** [January 9, 2023, 10:31am UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/7 "2023-01-09T10:31:43Z")
Did you have an issues when you avoided flashing and went back to 1.0.9? I was mislead by several YouTube videos of people downloading the 1.1.1 firmware so I did it myself yesterday didn’t have it downloaded for more than 5 mins before I read not to do it, I’m not gonna trouble myself with reflashing, what’s the worst that could happen? I use my one finity for personal enjoyment I do make and sell occasionally so it’s not like I need it for a job similar can afford downtime while I figure out any issues. ---
**Author:** ![Orthobill13](https://avatars.discourse-cdn.com/v4/letter/o/9dc877/32.png) [@Orthobill13](https://forum.onefinitycnc.com/u/Orthobill13)\ **Post date:** [January 9, 2023, 1:21pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/8 "2023-01-09T13:21:55Z")
Hi Jacob - I did not have any trouble going back to 1.0.9 without flashing. I think is froze one time after that, which in my mind I was worried that it was not the same 1.0.9 as before, but I have run. 1.0.9 for months after and it was the same rock steady system as before. I will say, I have run 1.2 for several days, and it seems to also be solid. As OF has said, it is built from 1.0.9 and I would agree it seems good so far. ---
**Author:** ![Festdewalkita](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/festdewalkita/32/21774_2.png) [@Festdewalkita](https://forum.onefinitycnc.com/u/Festdewalkita)\ **Post date:** [January 10, 2023, 3:28pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/9 "2023-01-10T15:28:48Z")
> [@How to reflash the operating system on the Onefinity BB controller (Full SD card image)](https://forum.onefinitycnc.com/t/how-to-reflash-the-operating-system-on-the-onefinity-bb-controller-full-sd-card-image/5659/1): > > There are times when you may have a file go corrupt or (advanced) users start poking under the hood and may need to reflash the entire vanilla image to the sd card. This process is essentially reinstalling the Onefinity operating system from scratch. This process is only for advanced users OR if you were directed to this via support. I don’t think this reply answers the OPs undo question. I have the same question, and this answer leaves me with the following: Is this the _only_ way to undo 1.1.1? Is it essentially the _only safe_ way to undo 1.1.1? Is it possible to simply put 1.0.9 on a flash drive and use the upgrade methodology to “upgrade” back to 1.0.9? I wish the 1F reply had elaborated a little rather than just re-posting information that was already available. ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [January 10, 2023, 3:53pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/10 "2023-01-10T15:53:05Z")
It is the ONLY complete way to undo 1.1.x family of firmware. No, you cannot ‘update’ back to 1.0.9 via a usb flash drive. answers were here: > [@Firmware Update 1.2 Beta (12/5/22) (Outdated Firmware)](https://forum.onefinitycnc.com/t/firmware-1-2-beta-new/17612): > > Updated 1/31/23 THIS IS BETA FIRMWARE. DO NOT INSTALL IF YOU ARE IN A PRODUCTION SITUATION. This release helps us collect data and ensure there are as few bugs as possible. Read below before getting to the download button at the bottom: A little background. Firmware 1.0.9 was the longest running firmware we’ve had up since release. It was solid, relatively bug free and very stable. We worked hard on 1.1.0-1.1.1 to add many new features and build on future additions to the firmware. We did… ---
**Author:** ![Ranfy](https://avatars.discourse-cdn.com/v4/letter/r/eb9ed0/32.png) [@Ranfy](https://forum.onefinitycnc.com/u/Ranfy)\ **Post date:** [January 10, 2023, 4:13pm UTC](https://forum.onefinitycnc.com/t/how-to-undo-the-upgrade-to-1-1-1/17863/11 "2023-01-10T16:13:24Z")
I did the update to 1.1.1 before I found out about the bugs. I watched the OninintyCNC video on how to reflash the firmware. It was very simple and straightforward. The only issue I had was that the video shows the top cover of the controller sliding back far enough so that you can pull out the SD card. On my X50 Woodworder I had to unplug the two large connectors at the front of the Controller before the top plate would slide back. Once I figured that out, the rest was simple.