[Desire 820 Q&A, Help & Troubleshooting] zonetrichur:
info as below

C:\>cd android

C:\android>fastboot getvar all

(bootloader) version: 0.5

(bootloader) version-bootloader: 3.19.0.0000

(bootloader) version-baseband: 01.01.010_U10305041_08.01.50512

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 2.10.720.4

(bootloader) version-misc: PVT SHIP S-ON

(bootloader) serialno: CC52NYC00291

(bootloader) imei: 357585062156350

(bootloader) imei2: 357585062156368

(bootloader) meid: 00000000000000

(bootloader) product: a51_dtul

(bootloader) platform: hTCBmsm8939

(bootloader) modelid: 0PFJ10000

(bootloader) cidnum: HTC__038

(bootloader) battery-status: good

(bootloader) battery-voltage: 0mV

(bootloader) partition-layout: Generic

(bootloader) security: on

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

(bootloader) commitno-bootloader: da038a09

(bootloader) hbootpreupdate: 11

(bootloader) gencheckpt: 0

(bootloader) mfg-name: 1001

all: Done!

Execution time is 31(ms)

flashed using below file via mmc and usb-flashing ok-but still in bootloop

"""""0PFJIMG_A51_DTUL_L50_DESIRE_SENSE60_MR_hTC_As ia_India_2.10.720.4_Radio_01.01.010_U10305041_08.0 1.50512_release_458938_signed_masud.zip""""""""

flash logs as below

(bootloader) zip info parsing...

(bootloader) checking model ID...

(bootloader) checking custom ID...

(bootloader) checking main version...

(bootloader) checking hboot version...

(bootloader) total_image_number=1

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

(bootloader) [RUU]UZ,system,0

(bootloader) [RUU]UZ,system,8

(bootloader) [RUU]UZ,system,16

(bootloader) [RUU]UZ,system,24

(bootloader) [RUU]UZ,system,32

(bootloader) [RUU]UZ,system,40

(bootloader) [RUU]UZ,system,48

(bootloader) [RUU]UZ,system,56

(bootloader) [RUU]UZ,system,64

(bootloader) [RUU]UZ,system,72

(bootloader) [RUU]UZ,system,80

(bootloader) [RUU]UZ,system,88

(bootloader) [RUU]UZ,system,96

(bootloader) [RUU]UZ,system,100

(bootloader) [RUU]WP,system,0

(bootloader) [RUU]WP,system,8

(bootloader) [RUU]WP,system,16

(bootloader) [RUU]WP,system,24

(bootloader) [RUU]WP,system,32

(bootloader) [RUU]WP,system,40

(bootloader) [RUU]WP,system,48

(bootloader) [RUU]WP,system,56

(bootloader) [RUU]WP,system,64

(bootloader) [RUU]WP,system,72

(bootloader) [RUU]WP,system,80

(bootloader) [RUU]WP,system,88

(bootloader) [RUU]WP,system,96

(bootloader) [RUU]WP,system,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

OKAY

sending 'zip'... (226842 KB) OKAY

sending time = 11.969 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=1

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

(bootloader) [RUU]UZ,system,0

(bootloader) [RUU]UZ,system,8

(bootloader) [RUU]UZ,system,16

(bootloader) [RUU]UZ,system,24

(bootloader) [RUU]UZ,system,32

(bootloader) [RUU]UZ,system,40

(bootloader) [RUU]UZ,system,48

(bootloader) [RUU]UZ,system,56

(bootloader) [RUU]UZ,system,64

(bootloader) [RUU]UZ,system,72

(bootloader) [RUU]UZ,system,80

(bootloader) [RUU]UZ,system,88

(bootloader) [RUU]UZ,system,96

(bootloader) [RUU]UZ,system,100

(bootloader) [RUU]WP,system,0

(bootloader) [RUU]WP,system,8

(bootloader) [RUU]WP,system,16

(bootloader) [RUU]WP,system,24

(bootloader) [RUU]WP,system,32

(bootloader) [RUU]WP,system,40

(bootloader) [RUU]WP,system,48

(bootloader) [RUU]WP,system,56

(bootloader) [RUU]WP,system,64

(bootloader) [RUU]WP,system,72

(bootloader) [RUU]WP,system,80

(bootloader) [RUU]WP,system,88

(bootloader) [RUU]WP,system,96

(bootloader) [RUU]WP,system,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

OKAY

sending 'zip'... (796 KB) OKAY

sending time = 0.203 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=1

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

(bootloader) [RUU]UZ,system,0

(bootloader) [RUU]UZ,system,8

(bootloader) [RUU]UZ,system,16

(bootloader) [RUU]UZ,system,24

(bootloader) [RUU]UZ,system,32

(bootloader) [RUU]UZ,system,40

(bootloader) [RUU]UZ,system,48

(bootloader) [RUU]UZ,system,56

(bootloader) [RUU]UZ,system,64

(bootloader) [RUU]UZ,system,72

(bootloader) [RUU]UZ,system,80

(bootloader) [RUU]UZ,system,88

(bootloader) [RUU]UZ,system,96

(bootloader) [RUU]UZ,system,100

(bootloader) [RUU]WP,system,0

(bootloader) [RUU]WP,system,8

(bootloader) [RUU]WP,system,16

(bootloader) [RUU]WP,system,24

(bootloader) [RUU]WP,system,32

(bootloader) [RUU]WP,system,40

(bootloader) [RUU]WP,system,48

(bootloader) [RUU]WP,system,56

(bootloader) [RUU]WP,system,64

(bootloader) [RUU]WP,system,72

(bootloader) [RUU]WP,system,80

(bootloader) [RUU]WP,system,88

(bootloader) [RUU]WP,system,96

(bootloader) [RUU]WP,system,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

OKAY

sending 'zip'... (185815 KB) OKAY

sending time = 9.875 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=1

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

(bootloader) [RUU]UZ,system,0

(bootloader) [RUU]UZ,system,8

(bootloader) [RUU]UZ,system,16

(bootloader) [RUU]UZ,system,24

(bootloader) [RUU]UZ,system,32

(bootloader) [RUU]UZ,system,40

(bootloader) [RUU]UZ,system,48

(bootloader) [RUU]UZ,system,56

(bootloader) [RUU]UZ,system,64

(bootloader) [RUU]UZ,system,72

(bootloader) [RUU]UZ,system,80

(bootloader) [RUU]UZ,system,88

(bootloader) [RUU]UZ,system,96

(bootloader) [RUU]UZ,system,100

(bootloader) [RUU]WP,system,0

(bootloader) [RUU]WP,system,8

(bootloader) [RUU]WP,system,16

(bootloader) [RUU]WP,system,24

(bootloader) [RUU]WP,system,32

(bootloader) [RUU]WP,system,40

(bootloader) [RUU]WP,system,48

(bootloader) [RUU]WP,system,56

(bootloader) [RUU]WP,system,64

(bootloader) [RUU]WP,system,72

(bootloader) [RUU]WP,system,80

(bootloader) [RUU]WP,system,88

(bootloader) [RUU]WP,system,96

(bootloader) [RUU]WP,system,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

OKAY

sending 'zip'... (478 KB) OKAY

sending time = 0.188 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=1

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

(bootloader) [RUU]UZ,system,0

(bootloader) [RUU]UZ,system,6

(bootloader) [RUU]UZ,system,13

(bootloader) [RUU]UZ,system,20

(bootloader) [RUU]UZ,system,26

(bootloader) [RUU]UZ,system,33

(bootloader) [RUU]UZ,system,40

(bootloader) [RUU]UZ,system,47

(bootloader) [RUU]UZ,system,53

(bootloader) [RUU]UZ,system,60

(bootloader) [RUU]UZ,system,67

(bootloader) [RUU]UZ,system,73

(bootloader) [RUU]UZ,system,80

(bootloader) [RUU]UZ,system,87

(bootloader) [RUU]UZ,system,94

(bootloader) [RUU]UZ,system,100

(bootloader) [RUU]WP,system,0

(bootloader) [RUU]WP,system,6

(bootloader) [RUU]WP,system,13

(bootloader) [RUU]WP,system,20

(bootloader) [RUU]WP,system,26

(bootloader) [RUU]WP,system,33

(bootloader) [RUU]WP,system,40

(bootloader) [RUU]WP,system,46

(bootloader) [RUU]WP,system,53

(bootloader) [RUU]WP,system,60

(bootloader) [RUU]WP,system,66

(bootloader) [RUU]WP,system,73

(bootloader) [RUU]WP,system,80

(bootloader) [RUU]WP,system,86

(bootloader) [RUU]WP,system,93

(bootloader) [RUU]WP,system,100

(bootloader) ...... Successful

(bootloader) current_image_number=0

OKAY

sending 'zip'... (164477 KB) OKAY

sending time = 9.031 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=3

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

(bootloader) [RUU]UZ,userdata,0

(bootloader) [RUU]UZ,userdata,8

(bootloader) [RUU]UZ,userdata,16

(bootloader) [RUU]UZ,userdata,21

(bootloader) [RUU]UZ,userdata,29

(bootloader) [RUU]UZ,userdata,37

(bootloader) [RUU]UZ,userdata,42

(bootloader) [RUU]UZ,userdata,50

(bootloader) [RUU]UZ,userdata,58

(bootloader) [RUU]UZ,userdata,63

(bootloader) [RUU]UZ,userdata,71

(bootloader) [RUU]UZ,userdata,80

(bootloader) [RUU]UZ,userdata,88

(bootloader) [RUU]UZ,userdata,96

(bootloader) [RUU]UZ,userdata,100

(bootloader) [RUU]WP,userdata,0

(bootloader) ...... Successful

(bootloader) current_image_number=0

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

(bootloader) [RUU]UZ,boot,0

(bootloader) [RUU]UZ,boot,6

(bootloader) [RUU]UZ,boot,13

(bootloader) [RUU]UZ,boot,22

(bootloader) [RUU]UZ,boot,30

(bootloader) [RUU]UZ,boot,35

(bootloader) [RUU]UZ,boot,43

(bootloader) [RUU]UZ,boot,48

(bootloader) [RUU]UZ,boot,56

(bootloader) [RUU]UZ,boot,61

(bootloader) [RUU]UZ,boot,70

(bootloader) [RUU]UZ,boot,76

(bootloader) [RUU]UZ,boot,87

(bootloader) [RUU]UZ,boot,96

(bootloader) [RUU]UZ,boot,100

(bootloader) [RUU]WP,boot,0

(bootloader) [RUU]WP,boot,69

(bootloader) [RUU]WP,boot,99

(bootloader) [RUU]WP,boot,100

(bootloader) ...... Successful

(bootloader) current_image_number=1

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

(bootloader) [RUU]UZ,tp,0

(bootloader) [RUU]UZ,tp,100

(bootloader) ..... Bypassed

(bootloader) current_image_number=2

OKAY

Flash Zip Complete

Execution time is 583(s)

i think it hardware problem-which ic?