Samsung Tab SHW-M180L topic

Hi guys, I need help with on this issue. I have a Korean Samsung Tab SHW-M180L and had tried rooting and updating the tablet to JB 4.1 but after adding the JunYoung ROM for GalaxyTab LGU+ BETA FIX.tar my tablet is stuck on a screen with lots of Korean characters and says Upgrade.

Please help. Thank you!