Tablet Hanged on start, after changing boot animation

[neema]

Hi
I would change boot animation by root tool box , but after reboot, tablet hanged before showing animation
it`s my tablet specification :

HYUNDAI TB1000 Wi-Fi + 3G 16GB
Support of GSM network for voice calls and send and receive SMS
Display: 9.7 inch - 768x1024 pixels - coincided with 5 point touch IPS
CPU: Cortex A8 1GH ( But in SETCPU was ARMv7 Processor rev 2 (v7l) 1200Mhz)
GPU: Mali400
Internal memory: 16 GB - 1 GB RAM
Memory card expandable up to 32 GB
Camera: 2 MP - 0.3 MP webcam
OS: Android 4.0.3
Other Features: Mini USB, accelerometer, gyroscope sensor, Webcam, GPRS, Wi-Fi
Adobe Flash support and HDMI output

here is my tablet full information get by Android Analyzer
Tablet is rooted
I think some files are corrupted, and i need stock rom or any acceptable rom

 

[neema]

any suggestion ??

how can I find the rom or firmware to update it

Kernel version : 3.0.8
Build number : 20120809-A106
Firmware version : 4.0.3