Default Lexibook Tablet Master 2 (MFC157FR) firmware

Hello guys !

Does anybody have MFC157 firmware or same firmware. At this moment I have found only FX2 Rad firmware (rev A) that is started on this device, but here I have some problems with touchpad (mirrored), also don't working wi-fi....I have lost original firmware from this device and be glad if anybody have firmware (original) or help me with find worked on this device firmware.....

Many thanks for your answer !