e500h show imei certificate coorupt

i have set e500h and it info show-

SM-E500H at RJ45 (UART) [MODEM]
ProdCode: SM-E500HZWDINS
IMEI: 351718-07-082895-1
IMEI: Certificate Corrupted
SKID: 0056
MSLA: HXXU1AOB28
BTID: 22C014-B1DFB1
WiFi: 001236-4C3CE0
SWVE: E500HXXU1AOB2
UNID: CQ3002A98FA2F12
CALD: 2015-01-17
HWVE: MP 0.500
SERN: HXXU1AOB286
PREC: INS [India]
PROV: NONE
MCK : < CRYPTED >
NCK : < CRYPTED >
NSCK: < CRYPTED >
SPCK: < CRYPTED >
CPCK: < CRYPTED >
SIM : < CRYPTED >

how to repair this, with ufst ?