Trying to revive fake Iphone6 - Android Q&A, Help & Troubleshooting

Device:
Fake iPhone6 with unknown chipset(yet)(looking for screwdriver to unscrew the phone)
Device Info from MTK Droid Tools:
Hardware : MT6589
Model : MF356ZP/A
Build number : ALPS.JB7.MP.V1.14
Build date UTC : 20141114-073552
Android v : 4.4.4
Baseband v: MOLY.WR8.W1315.MD.WG.MP.V38.P1, 2014/09/09 10:39
Kernel v : 3.4.39 ([email protected]) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP Mon Nov 17 14:54:24 CST 2014
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What I wanted to do:
Attempt to make this phone usable (so that I might be able to learn something from it)
Problem #1:
Insufficient Storage even after factory reset
What I did:
My friend found a fake iPhone which her dad bought like 2-3 years ago, and she decided to give it to me.
First thing i did was made a factory reset from its recovery. -> Success
Then i tried to install apps from its play store(apparently this fake iPhone runs Android), and insufficient storage error appeared.
I checked its actual storage using "adb shell df" and got the following output:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Apparently, the sdcard0 partition only have 17M in total which sucks XD
My Question:
Is there any thing I can do to make this phone usable?