Trick how to make spesial File :
1. We must have Hex Worskhop,
2. Open the MCU with Hex Workshop,
3. In the right windows you find word " .......DCT4....DCT4 Algorithm...."
4. Move 5 word to the left and then 4 word to the left
ex : abcDefgHijklDCT4....DCT4 Algxxxxx"
you will fine the first 5 to left is "H" and the next 4 to left is "D"
5. Know look at the hex value at the "H" and "D"
6. You will find that the value not "00"
7. just Change to "00" at the D dan H
8. Save AS the MCU and replace the original.
9. You will have spesial, flash it to your phone n you won't lose anything.
u can do that at 3510, 3530, 5100, 6100, 6510, 6610, 7210, 7250, 8310, 8910, 8910i,
i don't know how about 6800.