If your Ephone E11 phone is corrupt or bricked. Download Ephone E11 stock firmware from here. To get it back to a working condition again.
All you have to do is simply download the below-given Ephone E11 firmware files and tools on your PC. And then follow the given instruction to install the Stock ROM on Ephone E11 using SP Flash Tool. This guide is also helpful to unroot. Or fix any software malfunctioning problem.