i cleaned the fast port - check usb call and full the battery and re flash with PhoneXS but setool re give this error :
and PhoneXS :ChipID:9900,EMP protocol:0301
erom_readvar: error reading unit 1/851
error while reading security units
SECURITY UNITS CAN'T BE READ !
DAMAGED FIRMWARE/GDFS OR EMPTY PHONE
Can't load ID loader !
Elapsed:4 secs.
IMEI: Null GDFS: K800
What i can do?