Always write with SP Flash Tool ONLY the 2 modified EBR files (to be selected), other files to be unchecked in SPFT. Writing to be done in Download mode selected on SPFT.
The tablet costed me 50EUR from Aliexpress (special offer) and I bought it for CarTablet use because it has GPS, dual sim/3G+ and phone function.
Stock, it suks big time because 0.99GB is too little space for apps so you must resize somehow the Programs partition.
Resizing is done on your own risk!! Always do a backup of your ROM with MTK Droid Tools, in case something goes wrong you can use SP Flash tool to revert to stock ROM and try again.
Using iROOT it takes 15s and it's rooted BUT you have to uninstall all 4-5 apps he is putting in (Kingroot, cleaner and so on) for peace of mind.
If it freezes, try to reset the device using volume down and power for more than 5s.
For better connection with SP Flash tool try pressing and holding volume up before connecting the usb cable in the tablet.
Tablet must be powered off (for MTK smartphones it says to remove battery), and the easyest way is to press and hold the vol down and power untill the tablet is off.
LE:" After a few days of using the resized partition I started to receive random crashes and errors with USB storage must be formated so I reverted to stock EBR ... for now.