How to Full Erase a Flash Chip of a MTK as well as a SPD Handset

How to Full Erase a Flash Chip of a MTK as well as a SPD Handset
First, most important, why do we need to full erase?
Sometimes writting flash files to chinese phones is a big problem. even
if u got everything ok, it might give error at some percentage.
sometimes stuck at 10%, sometimes stuck at 15%. As per my personal
experience, Full erasing has always been usefull before flashing. Either that be chinese phones or be nokia phones

Step-by-Step Guide on how to erase full flash of your chines handset:
1.Read the Information of the handset (Also read full flash backup of handset in case u need it in future)
2.At the bottom of the information read, you can notice how much size is your flash chip. like in our
3.Now select "Format", Uncheck "Auto Format"
4.Enter the hex size "0x04000000" in the "Size" field, (Leave the Start field as it is)
5.Press Start and your phone will be full erased in few seconds.
now see
Depending on your flash size you need to enter the correct format size, the details are as follows:

• If your handset Flash is 8mb, then enter format size = 0x00800000 for Full Erase
  
• If your handset Flash is 16mb, then enter format size = 0x01000000 for Full Erase
  
• If your handset Flash is 32mb, then enter format size = 0x02000000 for Full Erase
  
• If your handset Flash is 64mb, then enter format size = 0x04000000 for Full Erase