Home Page Forums After Sales Services How to Unlock ALLDOCUBE T12 for flashing with fastboot on Linux?

This topic contains 1 reply, has 2 voices, and was last updated by  win2tabless 3 weeks ago.

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  • Ivan Grishyn
    Member
    @gri
    Ivan Grishyn(Starter)

    Hello. I am tryed to flash my tablet PC using this commands with fastboot and i have got this dump

    [gri@gribrook fplaye]$ cd T12_V1.0_20170222/
    [gri@gribrook T12_V1.0_20170222]$ ls
    boot.img Checksum.ini FlashToolLibEx.dll lk.bin OTA secro.img
    cache.img DB FlashToolLib.v1.dll logo.bin preloader_joyasz8321_tb_m.bin system.img
    CheckSum_Gen.exe Flashtoollib.dll items.ini MT6580_Android_scatter.txt recovery.img userdata.img
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot devices -l
    0123456789ABCDEF fastboot usb:2-3
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot getvar all
    (bootloader) max-download-size: 0x8000000
    (bootloader) partition-size:userdata: 32000000
    (bootloader) partition-type:userdata: ext4
    (bootloader) partition-size:cache: 10000000
    (bootloader) partition-type:cache: ext4
    (bootloader) partition-size:system: 80000000
    (bootloader) partition-type:system: ext4
    (bootloader) partition-size:metadata: 2660000
    (bootloader) partition-type:metadata: raw data
    (bootloader) partition-size:nvdata: 2000000
    (bootloader) partition-type:nvdata: ext4
    (bootloader) partition-size:frp: 100000
    (bootloader) partition-type:frp: raw data
    (bootloader) partition-size:expdb: a00000
    (bootloader) partition-type:expdb: raw data
    (bootloader) partition-size:logo: 800000
    (bootloader) partition-type:logo: raw data
    (bootloader) partition-size:para: 80000
    (bootloader) partition-type:para: raw data
    (bootloader) partition-size:keystore: 800000
    (bootloader) partition-type:keystore: raw data
    (bootloader) partition-size:secro: 600000
    (bootloader) partition-type:secro: raw data
    (bootloader) partition-size:oemkeystore: 200000
    (bootloader) partition-type:oemkeystore: raw data
    (bootloader) partition-size:recovery: 1000000
    (bootloader) partition-type:recovery: raw data
    (bootloader) partition-size:boot: 1000000
    (bootloader) partition-type:boot: raw data
    (bootloader) partition-size:lk: 60000
    (bootloader) partition-type:lk: raw data
    (bootloader) partition-size:seccfg: 40000
    (bootloader) partition-type:seccfg: raw data
    (bootloader) partition-size:protect2: a00000
    (bootloader) partition-type:protect2: ext4
    (bootloader) partition-size:protect1: a00000
    (bootloader) partition-type:protect1: ext4
    (bootloader) partition-size:nvram: 500000
    (bootloader) partition-type:nvram: raw data
    (bootloader) partition-size:proinfo: 300000
    (bootloader) partition-type:proinfo: raw data
    (bootloader) partition-size:preloader: 40000
    (bootloader) partition-type:preloader: raw data
    (bootloader) off-mode-charge: 1
    (bootloader) warranty: yes
    (bootloader) unlocked: no
    (bootloader) secure: yes
    (bootloader) kernel: lk
    (bootloader) product: JOYASZ8321_TB_M
    (bootloader) version-preloader: 0.1.00
    (bootloader) version: 0.5
    all: Done!!
    Finished. Total time: 0.077s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flash boot boot.img
    target reported max download size of 134217728 bytes
    Sending ‘boot’ (7906 KB)…
    OKAY [ 0.373s]
    Writing ‘boot’…
    FAILED (remote: download for partition ‘boot’ is not allowed
    )
    Finished. Total time: 0.390s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock

    OKAY [ 15.504s]
    Finished. Total time: 15.512s
    [gri@gribrook T12_V1.0_20170222]$
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot getvar unlocked
    unlocked: no
    Finished. Total time: 0.009s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_critical
    OKAY [ 7.630s]
    Finished. Total time: 7.635s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot getvar unlocked
    unlocked: no
    Finished. Total time: 0.010s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing get_unlock_ability
    (bootloader) unlock_ability = 0
    OKAY [ 0.010s]
    Finished. Total time: 0.017s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_critical
    (bootloader) Start unlock flow

    FAILED (remote:
    Unlock operation is not allowed
    )
    Finished. Total time: 7.331s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_critical
    OKAY [ 4.843s]
    Finished. Total time: 4.851s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot getvar unlocked
    unlocked: no
    Finished. Total time: 0.011s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_bootloader_nonce
    fastboot: usage: unknown ‘flashing’ command unlock_bootloader_nonce
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing get_unlock_bootloader_nonce
    FAILED (remote: unknown command)
    Finished. Total time: 0.010s
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_bootloader
    fastboot: usage: unknown ‘flashing’ command unlock_bootloader
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_bootloader 12
    error: could not load ‘unlock_bootloader’: No such file or directory
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot flashing unlock_bootloader
    fastboot: usage: unknown ‘flashing’ command unlock_bootloader
    [gri@gribrook T12_V1.0_20170222]$ sudo fastboot getvar unlocked
    unlocked: no
    Finished. Total time: 0.011s

    What i am doing wrong.  I pressed power+volumeup and catch a menu

    [Recovery Mode]

    [Fastboot Mode]  <==

    [Normal Boot]

    When i tryed to do (sudo fastboot flashing unlock)  i`ve got

     

    Please help me repairing this gadjet.

  • Member
    @win2tabless
    win2tabless

    the picture metion you press volume up button to confirm unlocking.

    by the way ,there is a linux version mtk spflashtool you can run on linux os to flash the firmware:

    https://androidmtk.com/smart-phone-flash-tool

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