answer: post her only mtk6252 flash file
SUPERPHONE S800 CPU-6252
T52_PCB01_GPRS_MT6252_S01.SPHONE_888_MTK_0101_12_V 10_0603.BIN
Initializing...
DA_LIB_VER_3.6.8.5
It is sensing the pinout fast,please hold on the phone Power key
RXD=18 TXD=22
Connecting...Please hold on the POWER key until the red gauge is going...
Any errors please select another boot and try again.
BB:6252, HardwareVer:8B00, SoftwareVer:CA04
Loading boot...
INT_SYSRAM_BOOT test completed.
Loading boot...
Boot2 test completed.
Nor Flash ID: 00C2002500370000
Nand Flash ID: 0000000000000000
Read Hardware Information is done.
Config EMI(Nor Flash only)...
H/W detection ok.
Get Project ID from phone...
Project ID: SPHONE.888.MTK.0101.12.V10.0603
SUPERPHONE S800 6252.rar