Another thing i have noted, they have put smaller battery inside the tablet, half the size of what it was before.
before it had 2 x 7.2V 3500mah battery in parallel to get 7000mah.
not only 1 x battery (don't know capacity, it is not written on battery this time.
and finally i found out that the tablet is still working good even if i plugged 9V charger, only the LCD died.