Requirements-
1. SD Card               (Please backup your data,your tablet will be formated)
2. SD Card Reader
3. Your PC
4. Your Tablet
5. Data Cable

Steps-
1. Download this two zip files.
    A)  Billionupload  or  Mediafire(click on any of the links)
    B) image file

2. Extract the "Flash tool umedia tablet.zip".

3. Open the "PhoenixCard.exe".

4. Click on "Image File" & browse to where you have downloaded the image file "LAVA_Z7H_S005_20120829_withoutcontent.img".


5.  Insert your sd card to the card reader & insert in the usb port of your PC.

6. Click on "Format to Normal", then click Burn.

7. After finished the above step completely remove the SD Card from card reader & insert it in your tablet. Make sure the tablet is off. Then power on it.
OR
Insert a small pin in the reset hole.

8. Now you can see a red progress bar moving. After it is completed the tablet will be switched off.

9. Now remove the SD Card and Turn on you tablet.