sp flash tool scatter file loading error - Android Q&A, Help & Troubleshooting

Hey guys,
sorry to bother you but i'm sort of stuck in a loop which i'm tryin to get out.
short background story: (end question next paragraph)
i own a xiaomi redmi pro, with a "fake" xiaomi stable global rom on it. fake as xiaomi doesn't support this rom.
I wish for several reasons to flash to either a stable/dev china rom, or the .eu stable eu rom.
for this i read a lot on how to flash those on a winsdows pc. but i run ubuntu.
so no problem... both use sp flash tool. so i downloaded the tool opened perfectly and tried to load scatter file from the rom i downloaded.
rom page link: downloaded both the china stable and china dev rom for the redmi pro
question paragraph:
when loading the scatter file i recieve an error message: Error: Initializing scatter file failed. Please check the name of scatter file which you load is legal.
i looked up the error and found that this was caused by the use of not the latest sp flash tool.
But i just downloaded it from the sp flash tool site itself (https://spflashtool.com) as being the latest for linux 64 bit. (SP_Flash_Tool_exe_Linux_v5.1520.00.100)
true there are later versions (SP_Flash_Tool_exe_win_v5.1524 or SPFlash Tool 5.1628, but only for windows)
googled a bit further and founs this site from sp flash tools: http://spflashtools.com/linux/sp-flash-tool-v5-1724-linux via https://androidmtk.com/smart-phone-flash-tool
so i downloaded this version, made the flash_tool an executable with: chmod +x flash_tool and tried to run it with ./flash_tool, but now i get an error message:
error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory, which i indeed couldn't locate.
maybe it is a 64 bit /'32 bit version error? but in the http://spflashtools.com/linux, site i did not find any specifications to 64 bit vs 32 bit, while it was on the previous mentioned site.
since flashing a phone can be a hazardous thing to do i want to be sure i'm using the correct tools.
I hope someone here is willing to help me with getting the sp flash tools correct version up and running so i can indeed load the scatter file.
Kind regard
Matthieu

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sorry,
found the error related to the libpng12-0 problem.. added the file to my system, and the latest version run as expected now.
although when i tried to flash i got an error message (and a blue thumb and index pinger because of pressing the two buttons)
ERROR : STATUS_EXT_RAM_EXCEPTION (-1073414139) , MSP ERROE CODE : 0x00.
but i expect this to be an phone (type) related issue, and i will aim my attention therefor back to the xioami forum.
none the less thanks.