Look Yvonne, I get it, you are a Fairphone Angel and you love Fairphone. I also like the concept and obviously I have also supported the company by buying a new FP3+.
However, saying something like “maybe not for you”, when FAIRPHONE has removed the file to update from 23 to 25 from EXACTLY the article that you just linked, just shows that you really have no idea of what we are talking about here at all. The file I used (and still have saved) is no longer available to download, and here comes my “maybe”: maybe because it DID NOT work? What is available now (and what you linked) is an update from 25 to 26 which is USELESS for people stuck on 23. We cannot just magically jump to Version 25 and then use the currently provided file without wiping all of our data.
And just to point out another thing which should be obvious: I followed that guide to the letter and I am not new to flashing android devices. The process with Fairphone is actually very straightforward compared to other devices and the guides provided are clear and simple. The issue is not somehow “me”, but that the file from Fairphone (which they have now removed themselves, I can’t stress this enough) was simply rejected by Fairphones own verification process on the Phone. You can see photos of this in my original post on this matter:
So to clear up your obvious confusion: OP is asking where the file is that he NEEDS to be able to do an OTA-sideload update as described in the guide. The guide mysteriously no longer contains said file, probably because of an issue with the update. This issue was described by me in a previous post. The only option OP has without said file is to use the “flashing with fastboot” option and wipe all his data.