Samsung Galaxy Tab 3 wont boot after rooting I try to Root my Samsung Galaxy Tab 3 with KingoRoot using pc.
after that it restarted, but now it won't boot.
when i try the button combination, home+power+vol, tab goes into downloading, odin, mode.
where can i find the Samsung Galaxy Tab 3 (model: SM-T211) flash firmware?

so that i can download and flash with this downloaded firmware ?
You may find stock firmware for your model on SamMobile from this link. 

This site is also a good source for firmware for most Samsung Mobiles. Just search for your model here. Do take note however that you have to register for a free account before you can start downloading. Optionally, upgrade to a premium account for faster download speed.