Download link of this ROM and Installation Instructions are provided below. Features: Pure Stock ROM JellyBean 4.1.2 Official from QMobile No Bugs at all. Everything works fine. Pre-Rooted. Battery Backup Increased. Download Link: Stock JellyBean 4.1.2 QMobile Noir A20 Google Drive Installation Instructions: Note: Flash this ROM on your own risk. Follow the steps carefully and you will be out of trouble otherwise you have no right claiming INCPak responsible for any damage to your device. Requirements: Rooted QMobile Noir A20 Custom Recovery Installed on it. I would prefer TWRP. You can Follow the instructions here to root and Install TWRP on your QMobile Noir A20 from below link: A20 - Qmobile Noir A20 ROOTED!! Detailed Root Method | GSMdude.com Download QMobile Noir A20 Stock ROM from the link given above. Now copy the downloaded zip file in your sd-card. Power Off your phone. Enter into Recovery mode by Volume UP Button + Power Down Button at the same time. First, make a backup of your current ROM just in case you mess up. Now Click on Wipe. Now Click on Cache and Swipe to wipe and then press Back. Now Click on Dalvik Cache and Swipe to wipe and then press Back. Now Click on Factory Reset and Swipe to wipe and then press Back. Now Click on System and Swipe to wipe and then press Back. Now go back to Main-Menu and press Install. Now Navigate to where you copied the downloaded ROM zip and select it and then Swipe to confirm flash. Once Flash is complete, press Reboot. Your Device will now reboot and QMobile Noir A20 Stock ROM will be there on your device.