I re-surrected my Ativ S again over the weekendand and flashed 10.0.15063.297_MMC.
Couldn't get the RS version to work properly and biggest problem was to find out how to properly flash since there seems no clear step by step instruction, since most people having the AtivS (like me also) don't seem to have English as their first language, but at the end I got a working phone with Windows 10.
I tried to stop windows updates, but still don't know how and in the mean time the phone upgraded itself to version 10.0.15063.414, which still seems to work fine whereas the first time I flashed to Windows 10 the update completely ruined the phone.
I have few questions left:
1. The last step, how exactly to enable mass storage? Did all the flashing stuff as described in the first post I think, but I really don't understand what exactly the following steps are that need to be done. (I can see the whole C: drive via USB via my PC, but not as mass storage and can't see the partition details as in the pictures.)
2. How to easily install a registry editor and where to download it, since until now I didn't find an easy or working solution.?
3. Is there a fix for the Maps App? Since at the highest zoom levels the map quality is terrible and don't show the streets anymore at all. Looks like it tries to render them in the first place, fails and shows the maps from a lower zoom level.
4. Is there a file explorer app so I can browse, manipulate and execute ALL the files on the phone?
And thanks for the great job so far on this ROM.