DESCRIPTION

TWRP 3.3.1 for Teclast T30 (all versions)

Instalation istructions:

a) Unlock Bootloader
- To make the item "For developers" available on the tablet, in Settings / System / Advanced / Tablet information you need to click on the Build number 8 times
- A new "Developer menu" item will now appear in Settings / System / Advanced, turn on the "unblock OEM" item here
- In the task manager on the PC, check that there is an ADB device
- Turn off the tablet
- Hold down the Vol+ and Power buttons together, until the tablet starts
- Then use the Vol+ key to select the second Fastboot item and press the Vol- key to select it
- Connect the tablet to the PC via USB, in the PC to hear the sound of the connection
- Unzip platform-tools_r30.0.4-windows.zip to drive "C:\platform-tools" on your PC
- On your computer, click Start / Run, enter command "cmd", click OK, will appears black command window
- In the command window go to Platform-tools folder by command: 

cd c:\platform-tools

- In the command window, enter:

C: platform-tools> fastboot devices
0123456789ABCDEF fastboot

- numbers may vary.
- If all is well, enter the unlock command:

fastboot flashing unlock

- You will be asked on the tablet whether or not you want to unlock the Bootloader by pressing Vol+ confirm it
- As soon as you confirm the action, what you see on the tablet, it will be unlocked

Next, enter the command:

fastboot reboot

- The tablet will restart (ALL your data will be deleted) and the tablet will return to its original state
- tablet will start initially setup

b) Install TWRP
- Upload the files DisableForceEncryption_Treble.zip and orange_state_disabler_v0.3.zip to the SD card
- Turn off the tablet
- Hold down the Vol+ and Power buttons together, until the tablet starts
- Then use the Vol+ key to select the second Fastboot item and press the Vol- key to select it
- Connect the tablet to the PC via USB, in the PC to hear the sound of the connection
- On your computer, open drive C and locate the Platform Tools folder
- Coply file "TWRP-3.3.1_Teclast_T30_.img" to Platform Tools folder
- In the black command window, enter (Flash TWRP via fastboot commands):

fastboot devices
fastboot flash recovery TWRP-3.3.1_Teclast_T30.img
fastboot reboot

- tablet will restart immediatelly after enter last commnad "fastboot reboot"
- IMMEDIATELY press Vol+ and Power buttons to go to TWRP  to bypass go to the System, otherwise TWRP will be replaced by the original recovery
- on tablet will appears menu, where by Vol+ choose "Recovery", enter it by Vol-

Now you are in TWRP
- connect mouse to tablet to control TWRP (touch do not  work)
- When prompted for a password, answer Cancel
- Click on Wipe, then Format Data, enter "yes"
- Now click Back 3 times
- Click Reboot / Recovery
- Click Install, file DisableForceEncryption_Treble.zip
- Click Add more Zips, file orange_state_disabler_v0.3.zip
- Click Swipe to confim Flash
- Click Reboot to system
- Finish!

Note: 
Unfortunately, the touch does not work in TWRP, so a mouse and USB adapter must be used to control the TWRP.

If someone has a problem with fastboot devices commands (fails), try install drivers " MTK_USB_All_v1.0.8.zip"
- unzip archive
- run file "MTK_USB_All_v1.0.8.exe"
- it will create desktop folder "MTK Usb Driver v1.0.8"
- run file \MTK_Driver_ ext\DriverInstaller.exe
- it will install drivers
- restart PC
- done

※Please make a backup of your device before installing or updating ROM