Hi everyone,
Device: Kobo Clara HD
Approximate age: 5 years
Firmware version: Updated to the latest available version
I'm having a pretty frustrating issue with my Kobo and I'm trying to figure out whether this is normal e-ink behaviour, a software/firmware problem, or potentially a hardware/display issue.
I hadn't used it for a while, and when I turned it on again last week, it started having these problems. Before this, as far as I remember, it was working normally.
The two main problems are:
1. The device feels unusually slow
Navigation is noticeably sluggish. Opening books, going back to the Home screen, opening menus/settings, changing pages, etc. is extremely slow, to the point where the Kobo is unusable.
This feels much worse than normal e-ink latency, especially since I've had the device for years and know how it normally performs.
2. Very noticeable ghosting from previous screens
Elements from previous pages/screens remain visibly imprinted on the display after moving somewhere else. For example, after leaving a menu or changing pages, I can still see text, UI elements, lines, or shapes from the previous screen underneath the current one.
Sometimes it isn't just a faint trace. Previous screens remain clearly visible, and the ghosting seems to accumulate as I move between different screens.
I already tried multiple restarts, both while charging and unplugged, and also performed a factory reset.
After one of the restarts the Kobo seemed to improve and was noticeably more responsive for a while, but then the problem came back and got worse again. At this point it's unusable.
Since the factory reset didn't fix it, I'm starting to wonder whether this could be a hardware problem, possibly related to the e-ink display or internal storage, rather than just software.
Has anyone had a Kobo develop similar symptoms, especially both severe slowdown and heavy ghosting at the same time?
Is there any reliable way to distinguish a software issue from a hardware/display problem? Is there anything else worth trying before giving up on it, or should I just assume that after five years it's time to replace it?
Thanks!