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How to downgrade to 4.2.2

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Post Dark Angel can you help?

Originally Posted by DarkAngel View Post
Nothing. You already installed the newest Knox Bootloader included with the Firmware and it can not be downgraded. If you do downgrade the Bootloader you will brick your phone. You can flash "ROMS" ( not Firmwares ) all you like from previous builds meaning you can flash a Custom 4.2.2 Rom but you can not downgrade the newest Knox Bootloader you installed.
I bricked my phone. I restored my previous backup(MK1) made with efs pro. I restored all partitions except user data and system. Now it is not responding with any buttons. When i connect it with pc it shows qhsusb_dload. Can you please make a debrick image for it? Or tell me how can i fix it please.
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