Meanit c22 frp error

how to solve this problem ?
Operation : Format FileSystem [ v1.58 ]

1. Power Off Phone , Remove battery , Insert back
2. Insert USB cable. In some cases require hold BootKey

Wait for phone...
Phone found! [ 222 ]
Sync...
Inital Boot Ok!
BB_CPU_PID : 6580
BB_CPU_NME : [MediaTek] MT6580_S00
BB_CPU_EXT : 0xCA00 , 0x8A00 , 0x0000
Processing BROM stage
Settings for BROM configured!
SecCfgVal : 0x05000000
BromVer : 0x00FF
BLVersion : 0x0001
PreLoader : Active [ Boot with PL ]
BootLdrSS : LOCKED with CERT
Processing DA stage
DA Select done, will use MTK_AllInOne_DA_v5.1624.16.07
Sending and initialize DA ...

[DA_ERROR] : SECURITYBOOT_BOOT_NOT_ACCEPTED
Boot Error!