when use WChinaTool the program say this.
CPU: MTK
File size: 16 Mb
ROM: LN2501D_HW.YLN2501D_SP127_ALL_V1_2R--091205.BIN
BUILD: <not found>
[MCU SW] YLN2501D_SP127_ALL_V1.2R
FS(fat) - Start: 0x1E00000, Size: 0x200000
### Warning ### File size or MTK_ROMINFO - BAD.
this is my bad firmware
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