Got exactly same problem...
Easiest and the fastest way to fix was for me flashing via fastboot blop GtrCraft provided and you are done.
No other actions needed.
This is from Gionee E7 32GB
Flash with Flashify or via ADB...
I hope this will help someone out there!
For explaining... Flashfire got some problems with flashing bootloader... so you have to flash blob manualy. I think new blob is needed only with new major Android update 6.0 > 7.0 etc... So it should be ok to just use Flashfire with small ROM upd...
No problem! :P Also thank you GtrCraft for blob!
Robgee789 exactly! No data loss! HF :)