I recently replaced my Kobo Aura One due to a green light issue. The replacement has the same issue too, but it's not as noticeable as the original. The replacement has it's own issues though. It was having a battery drain problem. After a factory reset*, it's ok now. But the main issue is that some kepub books are not working at all. When I try to open them, the device hangs up and restarts. This is mainly the case for technical kepubs(like drm free cisco press books). The kepub is 28 mb. I tried loading the epub version (77 mb) and that seems to work without any problems. My process for conversion is epub into calibre, epub to epub conversion with justify text, then hypenation and send it to kobo as kepub. This used to work without any problems with the old device. But on the replacement, it just hangs. Anyone has had this issue before? Any way to rectify this? Thought I'd give it a shot here before contacting Kobo as I don't think they'll have any idea. Any help is welcome.
*Contacted Kobo about this. Heard that there is going to be a firmware update early July to fix this.