An unofficial version of TWRP 3.5.2 is available for the iPlay 40. This allows you to flash ROM files and manage partitions directly from the tablet.
Q: How do I revert back to stock ROM? A: To revert back to stock ROM, you can use the device manufacturer's official firmware package and follow the installation process using TWRP recovery or SP Flash Tool. alldocube iplay 40 custom rom verified