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					Originally Posted by akorx  I hadn't seen it... thank you ! do you know if we can directly drop from 4.2.8432 to 4.5.9587? Indeed this link https://www.mobileread.com/forums/sh...54#post3554654  is not clear for me (I'm french) because on the first page it's written :
"Check Settings > Device information to make sure your Kobo ereader is already running firmware version 4.5.9587 (c77383d7d1). If not, then you need to upgrade before applying this patch." 
=> I can not be in 4.5.9587 if I want to install 4.5.9587    ! | 
	
 You can upgrade from any version of the firmware to any newer version. There's a fair chance that if you sync, it will update to 4.5.9587. But, there is a set of patches for each released firmware version. If there is a reason you don't want to upgrade, then find the patch thread for the firmware you are using.