first of all iam not a developer but a geek,and i take credit of nothing
i upgraded my bln-l22(indian) version to emui 5 with the help of firmware finder
if i can,u can do it too(if u can't wait lol!) and yeah no risks whatsoever!
here are the steps:
1.download firmware finder from play store
2.open it and click on options(three dots top right),u have to check on some options,see further in screenshot attached below
3.u will be prompted to download addon i.e. firmware finder proxy download it and install
4.u have to connect to wifi for this to work(;3),long press on ur wifi network-modify network-proxy-manual(see screenshot below)
5.now open firmware finder,tap options-change model(dont worry its honor 6x) bln l21 and find the update ,in which changelogs describes emui5(around 1.57gb)
6.if u have followed 4th step correctly,it will show you send firmware to updater,click on that
7.now u will go to official updater app of our mobile,from here u can use ur mobile data too
8.download the firmware,rest all is done by updater app itself
9.enjoy emui5 🤣
iam attaching screenshot of every steps,if u are confused
and dont worry none of ur data will be deleted.