Flashing H2OS Marshmallow with Gapps working

1) Before flashing H2OS, flash this modded TWRP recovery via fastboot. Dowload from http://ift.tt/2clbfAy or http://ift.tt/2cXcsfB (watch what you're downloading if you choose the 2nd link) Download 'twrp-3.0.2-2_blu_spark.v41-onyx_by-engstk.img ' only
2) Download the latest build of H2OS from http://ift.tt/2cOrdnS or check www.h2os.com in case the link doesn't work. After you've downloaded the ROM and your desired Gapps package (I suggest SlimZero, best in the world), copy them to your phone's storage
3) Flash to recovery (TWRP in our case)
4) So here's something important; first, choose the downloaded .zip file, but DO NOT flash it yet. You'll see another button saying 'Add another zip'. Tap on that, and then add the Gapps .zip package. Flash 'em up.

ENJOY H2OS <3
If you face any problems, feel free to comment here.
Hit the thanks button if it worked for you!

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