karbonn a27+ show this error
 

when i try to flash karbonn a27+ it show this error-

Card found : S/N : 94FBD840 , v0130
Chinese Miracle II [MTK module] v 1.44

Scatter Load Ok , BaseBand : MT6577 , Project : MTK6577 , Storage : eMMC
Files found : 11 , Set to Flash : 10
Ready to Flash!

Operation : Flash [ v1.44 ]

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

Wait for phone...
Device boot not done
Check Drivers
Try again

Boot Error!

Operation Failed
Elapsed: 00:00:29
Reconnect Power/Cable!


Operation : Flash [ v1.44 ]

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

Wait for phone...
Phone found! [ 7 ]
Sync...
Inital Boot Ok!
BB_CPU_PID : 6575
BB_CPU_NME : [MediaTek] MT6575|MT6577_S00
BB_CPU_EXT : 0xCB00 , 0x8B00 , 0xE201
Processing BROM stage
i2c Init : 00008810
SpeedSet : 0000
VChrgSet : 0x28 , BatStat : 0x82
WD Disable stat : 0x0000
Settings for BROM configured!
SecCfgVal : 0x00000000
BromVer : 0x0005
BLVersion : 0x00FE
PreLoader : NOT Active [ Erased ]
BootLdrSS : NORMAL with SPRELOADER
Processing DA stage
DA Select done, will use MTK_AllInOne_DA_v5.1552.01.01
Sending and initialize DA ...
Running DA ver.3.2 on BBID : 0x84
Initialize Memory ...
DRAM already initialized by Preloader

[DA_ERROR] : DA Init failed!
Something wrong with battery or connection!
Boot Error!

Operation Failed
Elapsed: 00:00:15
Reconnect Power/Cable!


Operation : Flash [ v1.44 ]

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

Wait for phone...
Phone found! [ 7 ]
Sync...
Inital Boot Ok!
BB_CPU_PID : 6575
BB_CPU_NME : [MediaTek] MT6575|MT6577_S00
BB_CPU_EXT : 0xCB00 , 0x8B00 , 0xE201
Processing BROM stage
i2c Init : 00008810
SpeedSet : 0000
VChrgSet : 0x28 , BatStat : 0x82
WD Disable stat : 0x0000
Settings for BROM configured!
SecCfgVal : 0x00000000
BromVer : 0x0005
BLVersion : 0x00FE
PreLoader : NOT Active [ Erased ]
BootLdrSS : NORMAL with SPRELOADER
Processing DA stage
DA Select done, will use MTK_AllInOne_DA_v5.1552.01.01
Sending and initialize DA ...
Running DA ver.3.2 on BBID : 0x84
Initialize Memory ...
DRAM already initialized by Preloader
eMMC FlashIC initialized
[eMMC] : FLASH_VEN : 0x15 , OEM : 0100
[eMMC] : FLASH_INF : [SAMSUNG] , M00U5
[eMMC] : FLASH_CID : 1501004E355530304D02C21E2E015059
[eMMC] : FLASH_BRT : 0x00200000 , 0x00200000 , 0x00020000
[eMMC] : FLASH_LEN : 0x00000000E9000000
[eMMC] : FLASH_UCP : 3728 MiB [eMMC 4 GiB]
DEV RID : 4F4A20EBD780C56DEB07FE327FDB920F
INT RAM : 0x00020000
EXT RAM : 0x00000000
BOOT TYPE : EMMC_FLASH_BOOT
SOC VERIFY : C1
Boot Ok!

ScatCFG : BaseBand : MT6577 , Project : MTK6577 , Storage : eMMC
Setting : Flash Pre-Erase (Safe) : Enabled
Setting : AFF verify : Enabled
Setting : HW verify : Enabled

Switching to HSUSB
****ch to HSUSB failed! Trying skip ...
DRAM not initialized , will try init now

Operation Failed
Elapsed: 00:00:13
Reconnect Power/Cable!


Operation : Flash [ v1.44 ]

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

Wait for phone...
Phone found! [ 7 ]
Sync...
Inital Boot Ok!
BB_CPU_PID : 6575
BB_CPU_NME : [MediaTek] MT6575|MT6577_S00
BB_CPU_EXT : 0xCB00 , 0x8B00 , 0xE201
Processing BROM stage
i2c Init : 00008810
SpeedSet : 0000
VChrgSet : 0x28 , BatStat : 0x82
WD Disable stat : 0x0000
Settings for BROM configured!
SecCfgVal : 0x00000000
BromVer : 0x0005
BLVersion : 0x00FE
PreLoader : NOT Active [ Erased ]
BootLdrSS : NORMAL with SPRELOADER
Processing DA stage
DA Select done, will use MTK_AllInOne_DA_v5.1552.01.01
Sending and initialize DA ...
Running DA ver.3.2 on BBID : 0x84
Initialize Memory ...
DRAM already initialized by Preloader
eMMC FlashIC initialized
[eMMC] : FLASH_VEN : 0x15 , OEM : 0100
[eMMC] : FLASH_INF : [SAMSUNG] , M00U5
[eMMC] : FLASH_CID : 1501004E355530304D02C21E2E015059
[eMMC] : FLASH_BRT : 0x00200000 , 0x00200000 , 0x00020000
[eMMC] : FLASH_LEN : 0x00000000E9000000
[eMMC] : FLASH_UCP : 3728 MiB [eMMC 4 GiB]
DEV RID : 4F4A20EBD780C56DEB07FE327FDB920F
INT RAM : 0x00020000
EXT RAM : 0x00000000
BOOT TYPE : EMMC_FLASH_BOOT
SOC VERIFY : C1
Boot Ok!

ScatCFG : BaseBand : MT6577 , Project : MTK6577 , Storage : eMMC
Setting : Flash Pre-Erase (Safe) : Enabled
Setting : AFF verify : Enabled
Setting : HW verify : Enabled

Switching to HSUSB
****ch to HSUSB failed! Trying skip ...
DRAM not initialized , will try init now

Operation Failed
Elapsed: 00:00:13
Reconnect Power/Cable!


set condition is desd.

Hello. Check drivers. After reconnect it not detected by PC.