More information : Apparently the loading of the Kepub file works only if you are on the first page of the chapter, if you are on an other page the kobo freeze and I can unfreeze it only if I plug it to my computer.
More information :
Apparently the loading of the Kepub file works only if you are on the first page of the chapter, if you are on an other page the kobo freeze and I can unfreeze it only if I plug it to my computer.