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Oppo Firmware .ozip decrypter

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Oppo/Oneplus .ozip Firmware decrypter

Tested with CPH1707EX, CPH1611EX OTA Zip and Python >= 3.6

  • : Decrypt Oppo .ozip to .zip


sudo apt install python3-pip
pip3 install -r requirements.txt


  • OTA OZIP decryption:
./ CPH1707EX_OTA_0070_all.ozip

File will be decrypted as *.zip


Share, modify and use as you like, but refer the original author !


For a tutorial on aes key extraction, head over here.

For extraction of or /sbin/recovery, use:

./ [your_ofp_file]

If you're getting a recovery.cpio.7z file, extract using 7z to get the /sbin/recovery file.

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