it dont go into download mode
1-Begin by powering off the tablet by holding the Power key and selecting power off.
2-When the tablet shuts off, hold Volume down + Power button till you see the warning message.
3-Confirm the process to access the Download mode by taping the Volume Up.
4-Now simply tap on Volume Up once.
If you cannot, in this way, enter the recovery mode and choose the second option, Roboot to bootloader