Blu studio 7.0 ii soft- bricked i believe!

Ok so i rooted my blu studio 7.0 ii everything was fine, i slipped up and didnt do a back- up like a dummy the root i used was King root and then i wanted an app but it wasnt available for my version or compatible so i youtubed how to by pass that it suggested to download j rummy build prop editor and use samsung and GT-I9100 on build product and and device name and so forth then restart your phone which i did, and it worked no problems , then i went a step to far and turned on selinux mode and edited stagefright on it or something and rebooted it then it was bootlooped to recovery mode, nd that selinux was enforcing policy everything was null and when it checked all the files system check failed is what it stated, so then i flashed blu studio 6.0 firmware on it thinking that it would help but it didnt now it wont boot at all i need some help on how i can fix this my self seeing as it says modified on a system check so i think that voids my warranty

BLU Studio Energy - Can't Install any rom

Hello, a friend of mine asked for me to try to recover his bricked device, it wont have any custom recovery, only the default android recovery, i put up an sdcard with a rom suggested in here but i always get installation aborted in "Opening update package". I already tryed SP Flash Tool, since i cant actually remove its battery, i tried forcing a simulation of removing its battery by pressing vol up + power so SP Flash Tool can recognize it which i does but i get stuck in the red bar "Download DA", i tried also sideload via adb, but i got "error:closed" and fastboot wont recognize the device, any help?

Thanks for reading:fingers-crossed:, and sorry my bad english, isn't my native language.

ANDROID STUDIO, Gradle build failed! *URGENT*

Whenever I try generating a singed app or try running the built app on my device it shows error :-

Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.7.0_45\bin\java.exe'' finished with non-zero exit value 1

Can anyone tell me what can be the reason and how can i resolve this!!
(Gradle build failure)
I have already referred to many other sites but I think XDA developers is the best place to discuss this.....
Please reply ASAP!
Thanks :)

Can't find out how to Root a BLU Studio 6X

Hi everyone, I bought a BLU studio 6x from Walmart, 6in. Screen, dual sim, mediatek soc, quadcore processor, Mali 400gpu. This isn't the BLU studio 6 HD or the BLU studio 6 LTE. I can't find anything anywhere on how to root this thing. Any help or a point in the right direction would help. I am used to rooting s3 with odin . not having any luck here.
Thanks!