Display error message upon failed OTA Update.
Display error message upon failed OTA Update.

mwoz123/koreader,poire-z/koreader,apletnev/koreader,poire-z/koreader,pazos/koreader,NickSavage/koreader,noname007/koreader,Hzj-jie/koreader,robert00s/koreader,chrox/koreader,koreader/koreader,NiLuJe/koreader,frankyifei/koreader,NiLuJe/koreader,chihyang/koreader,mihailim/koreader,koreader/koreader,Frenzie/koreader,Frenzie/koreader,lgeek/koreader,houqp/koreader,ashang/koreader,ashhher3/koreader,Markismus/koreader