Octoplus/Octopus Box LG Software v.2.6.6

Octoplus/Octopus Box LG Software v.2.6.6 Release Notes:

* Added support for the following models:

    - B450 - added world's first Direct Unlock, Repair IMEI, Read/Write/Repair NVM, Read/Write/Reset Security, Read Full Flash, Repair BT address, Read Info
    - B470 - added world's first Direct Unlock, Repair IMEI, Read/Write/Repair NVM, Read/Write/Reset Security, Read Full Flash, Repair BT address, Read Info
    - X230DS - added world's first Direct Unlock, Read Codes, Repair IMEI (A/B), Reset FRP, Write Firmware, Read/Write Full Flash
    - LS770 - added Open Hidden Menu (thanks to Mr. Feiselski)

* Added world's first "Write Firmware" operation for signed versions of firmware for the following MTK CPU-based devices:

    - M250, M250AR
    - M250DS, M250DSN
    - M250E, M250F, M250H, M250I
    - M250K, M250M, M250N
    - M250Y, M250YK

* Improved connection procedure for MTK CPU-based phones

* All supported operations are described in details in the manual ("Cable & Manual" button in the software)