[Desire 816 Q&A, Help & Troubleshooting] zonetrichur:
details as below

[IMG="816 error"]http://i68.tinypic.com/o93lhl.jpg[/IMG]

via mmc in hboot error as """"'IMAGE UPDATE FAIL--DEVICE HALTED DUE TO LARGE IMAGE UPDATE FAIL""""""""

so tried via usb error as below

C:\android>fastboot oem rebootRUU

< waiting for device >

... (bootloader) Start Verify: 3

OKAY

Execution time is 26(s)

C:\android>fastboot flash zip 0P9CIMG.zip

sending 'zip'... (38480 KB) OKAY

sending time = 3.906 secs

writing 'zip'... (bootloader) adopting the signature contained in this image...

(bootloader) signature checking...

(bootloader) rom parsing start ...

(bootloader) rom parsing finish ...

(bootloader) zip header checking...

(bootloader) zip info parsing...

(bootloader) checking model ID...

(bootloader) checking custom ID...

(bootloader) checking main version...

(bootloader) checking hboot version...

(bootloader) start image[hboot] unzipping for pre-update check...

(bootloader) total_image_number=8

(bootloader) start image[hboot] flushing...

(bootloader) signature checking...

(bootloader) [RUU]WP,hboot,0

(bootloader) [RUU]WP,hboot,99

(bootloader) [RUU]WP,hboot,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

(bootloader) start image[sbl1] unzipping for pre-update...

(bootloader) start image[sbl1] flushing...

(bootloader) signature checking...

(bootloader) verified fail

(bootloader) ...... Bypassed

(bootloader) start image[sbl1] unzipping for pre-update...

(bootloader) start image[sbl1] flushing...

(bootloader) signature checking...

(bootloader) ...... Successful

(bootloader) start image[sbl1] unzipping for pre-update...

(bootloader) start image[sbl1] flushing...

(bootloader) signature checking...

(bootloader) verified fail

(bootloader) ...... Bypassed

(bootloader) start image[sbl1] unzipping for pre-update...

(bootloader) start image[sbl1] flushing...

(bootloader) signature checking...

(bootloader) verified fail

(bootloader) ...... Bypassed

(bootloader) current_image_number=1

(bootloader) current_image_number=2

(bootloader) current_image_number=3

(bootloader) start image[rpm] unzipping for pre-update...

(bootloader) start image[rpm] flushing...

(bootloader) signature checking...

(bootloader) ...... Successful

(bootloader) current_image_number=4

(bootloader) start image[tz] unzipping for pre-update...

(bootloader) start image[tz] flushing...

(bootloader) signature checking...

(bootloader) ...... Successful

(bootloader) current_image_number=5

(bootloader) current_image_number=6

(bootloader) start image[sdi] unzipping for pre-update...

(bootloader) start image[sdi] flushing...

(bootloader) [RUU]WP,sdi,0

(bootloader) [RUU]WP,sdi,100

(bootloader) ...... Successful

(bootloader) current_image_number=7

FAIL90 hboot pre-update! please flush image again immediately

FAILED (remote: 90 hboot pre-update! please flush image again immediately)

For "hboot-preupdate" response, restart the same procedure for device FA46PMZ030

95...

< waiting for device >

sending 'zip'... (38480 KB) OKAY

sending time = 4.422 secs

writing 'zip'... (bootloader) adopting the signature contained in this image...

(bootloader) signature checking...

(bootloader) rom parsing start ...

(bootloader) rom parsing finish ...

(bootloader) zip header checking...

(bootloader) zip info parsing...

(bootloader) checking model ID...

(bootloader) checking custom ID...

(bootloader) checking main version...

(bootloader) checking hboot version...

(bootloader) total_image_number=7

(bootloader) start image[sp1] unzipping & flushing...

(bootloader) [RUU]UZ,sp1,0

(bootloader) [RUU]UZ,sp1,100

(bootloader) [RUU]WP,sp1,0

(bootloader) [RUU]WP,sp1,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

(bootloader) start image[adsp] unzipping & flushing...

(bootloader) [RUU]UZ,adsp,0

(bootloader) [RUU]UZ,adsp,11

(bootloader) [RUU]UZ,adsp,22

(bootloader) [RUU]UZ,adsp,33

(bootloader) [RUU]UZ,adsp,43

(bootloader) [RUU]UZ,adsp,55

(bootloader) [RUU]UZ,adsp,66

(bootloader) [RUU]UZ,adsp,77

(bootloader) [RUU]UZ,adsp,89

(bootloader) [RUU]UZ,adsp,100

(bootloader) [RUU]WP,adsp,0

(bootloader) [RUU]WP,adsp,100

(bootloader) ...... Successful

(bootloader) current_image_number=1

(bootloader) start image[pg2fs_spcustom] unzipping & flushing...

(bootloader) [RUU]UZ,pg2fs_spcustom,0

(bootloader) [RUU]UZ,pg2fs_spcustom,91

(bootloader) [RUU]UZ,pg2fs_spcustom,100

(bootloader) ...... Successful

(bootloader) current_image_number=2

(bootloader) start image[wcnss] unzipping & flushing...

(bootloader) [RUU]UZ,wcnss,0

(bootloader) [RUU]UZ,wcnss,23

(bootloader) [RUU]UZ,wcnss,47

(bootloader) [RUU]UZ,wcnss,70

(bootloader) [RUU]UZ,wcnss,95

(bootloader) [RUU]UZ,wcnss,100

(bootloader) [RUU]WP,wcnss,0

(bootloader) [RUU]WP,wcnss,100

(bootloader) ...... Successful

(bootloader) current_image_number=3

(bootloader) start image[recovery] unzipping & flushing...

(bootloader) [RUU]UZ,recovery,0

(bootloader) [RUU]UZ,recovery,7

(bootloader) [RUU]UZ,recovery,15

(bootloader) [RUU]UZ,recovery,22

(bootloader) [RUU]UZ,recovery,29

(bootloader) [RUU]UZ,recovery,39

(bootloader) [RUU]UZ,recovery,44

(bootloader) [RUU]UZ,recovery,52

(bootloader) [RUU]UZ,recovery,58

(bootloader) [RUU]UZ,recovery,63

(bootloader) [RUU]UZ,recovery,70

(bootloader) [RUU]UZ,recovery,79

(bootloader) [RUU]UZ,recovery,85

(bootloader) [RUU]UZ,recovery,93

(bootloader) [RUU]UZ,recovery,100

(bootloader) [RUU]WP,recovery,0

(bootloader) [RUU]WP,recovery,99

(bootloader) [RUU]WP,recovery,100

(bootloader) ...... Successful

(bootloader) current_image_number=4

(bootloader) start image[radio] unzipping & flushing...

(bootloader) [RUU]UZ,radio,0

(bootloader) [RUU]UZ,radio,6

(bootloader) [RUU]UZ,radio,12

(bootloader) [RUU]UZ,radio,19

(bootloader) [RUU]UZ,radio,25

(bootloader) [RUU]UZ,radio,32

(bootloader) [RUU]UZ,radio,38

(bootloader) [RUU]UZ,radio,44

(bootloader) [RUU]UZ,radio,51

(bootloader) [RUU]UZ,radio,57

(bootloader) [RUU]UZ,radio,63

(bootloader) [RUU]UZ,radio,70

(bootloader) [RUU]UZ,radio,76

(bootloader) [RUU]UZ,radio,82

(bootloader) [RUU]UZ,radio,89

(bootloader) [RUU]UZ,radio,95

(bootloader) [RUU]UZ,radio,100

(bootloader) trying to rename MBA

(bootloader) [RUU]WP,radio,0

(bootloader) [RUU]WP,radio,51

(bootloader) [RUU]WP,radio,100

(bootloader) ...... Successful

(bootloader) current_image_number=5

(bootloader) start image[rcdata] unzipping & flushing...

(bootloader) [RUU]UZ,rcdata,0

(bootloader) [RUU]UZ,rcdata,100

(bootloader) [RUU]WP,rcdata,0

(bootloader) [RUU]WP,rcdata,100

(bootloader) ...... Successful

(bootloader) current_image_number=6

OKAY

sending 'zip'... (507111 KB) OKAY

sending time = 46.984 secs

writing 'zip'... (bootloader) adopting the signature contained in this image...

(bootloader) signature checking...

FAIL12 signature verify fail

FAILED (remote: 12 signature verify fail)

Execution time is 115(s)

why such an error? help me