After doing below commands the wifi works in Ubislate 7c+: a) Install "terminal emulator" in the device (copy the apk to device using memory card or data cable connection). b) Open terminal emulator type the following two commands & press enter after each > su > insmod /vendor/modules/8192cu.ko c) Open wifi in the settings and on/off wifi d) It works!!! WiFi will be worked till reboot. After reboot/restart device you need to run the command again Terminal Emulator.
Dear, Please call Datawind Technical Team and register the complaint. They will give you a Complaint number and the details of service center near by your location. Please keep the Invoice of your tablet when you visit the service center. The Datawind Technical Team Contact Number: 01 83 2581 330 Thank you.