[Question] SD fix for MTK Galaxy S5

[kaos99]

I have a mtk galaxy s5 with (fake) KitKat 4.4.2 and i cant write to a SD card
I rooted it and tried to download NextApp's SDFix but "Your device isn't compatible with this version."
I downloaded geeksoft's SD fix but it didn't work

I don't know the exact model and manifacturer but it has the following specs according to specdevice:
Display: 854 x 480; DPI: 240; Evaluated Size: 4.1"
Touch Screen: NOT multitouch 1 point
GPU: Mali-400 MP; ARM; OpenGL
ES-CM 1.1; OpenGL ES 2.0
RAM: 512 MB (486 MB available)
Flash: 4 GB (3.616 GB actual); 2 GB (1.854 GB actual)
Processor: 4 cores; ARMv7
Processor rev 3 (v7l); Max: 1900.0 MHz; Min: 250.0 MHz
Camera: Photo: 5.5 MP; Max: 2880x1920; Video: 0.9 MP; Max: 1280x720; Focus: auto infinity continuous-picture continuous-video; Flash modes: off on auto torch
Additional Camera: Photo: 0.3 MP; Max Size:640x480; Video: 0.3 MP; Max: 640x480; Focus: auto infinity continuous-picture continuous-video; Flash modes: off

MTK Build (according Mobileuncle Tools):
ro.mediatek.version.release = ALPS.JB3.MP.V1
ro.mediatek.platform = MT6572
ro.mediatek.chip_ver = S01
ro.mediatek.version.branch = ALPS.JB3.MP

It has 1.3 GB storage
How do i get a external SD card to work?
Do i need official KitKat 4.4.2?
if i do can u explain step by step how to do this?

[NexusTrix]

There will most likely never be KitKat for your device.

1 - What happens when you try to write to SD?
2 - Can you read from SD?
3 - Have your tried formatting as FAT-32?