Ok, I know now everything. Its simple. Copy all files from X98_PRO_android_5.1_mirek190_v1.0.7z to folder ROM which is unziped from mirek190_flash_tool_x98_pro_v1.1.7z. Remember flash tool v1.1 to use. It fixed stuck battery info at 42%.
I dont know why in flash tool, file flash ROM.json has got diferent value than in mirek190’s rom zip.
@fioren
You need these apps and install in this order:
iSocUSB-Driver-Setup-1.2.0.exe
IntelAndroidDrvSetup1.5.0.exe
PhoneFlashTool_5.3.2.0_Win32.exe