[Q] Help on put ACER A1-830 back to original rom - General Questions and Answers

Hi all Android Gurus,
I have successfully rooted my ACER A1-830 as explained on this thread.
Model: A1-830
Android Version: 4.2.2
Image Version: Acer_AV052_A1-830_RV07RC05_WW_GEN1
Compilation NÂș: Acer_AV052_A1-830-1.014.00_WW_GEN1
Now I'm facing some problem with the Micro-USB port and I need to send it back to warranty an I didn't make any backup of the original rom.
Does anyone knows where can I download the original rom and how to flash it back?
Can anyone can help me on this?
Best regards,
Jhonnie

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