Failing to downgrade Honor 5X KIW-AL10 (Chinese variant)

hi folks,
So, i got honor 5X KIW-AL10 (Chinese variant with 2GB ram). I love the phone but i don't really like EMUI. Here's the info:
Lollipop build number: KIW-AL10C00B258 which updates to KIWAL10C00B430 (VoLTE patched MM update). VoLTE update means no custom ROMs. So far, i have downloaded and tried to flash different firmware for the same variant like KIWAL10C00B419 (no VoLTE patch) but it fails because B258 can only be upgraded to B430. I am trying to downgrade the lollipop version to...

Failing to downgrade Honor 5X KIW-AL10 (Chinese variant)

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