Revisiting how to replace battery for iPad 2 and Jailbreaking

well couple of years ago I posted in macrumors.com regarrding how I refurbished iPad2. It’s been awhile I almost forgot how i does it, now I can finally revisit this post

https://forums.macrumors.com/threads/successfully-refurbished-ipad-2-into-mint-condition.2344140/