HTC D728W a50cml_dtul 1.33.720.1 NOT FLASHING

Hi all, I tried flashing my htc d728w with every flashing guide and followed the noob guide as well but when I try to flash the phone via sd card then it gets to the verification screen, like showing 100% check ok in red then reboots and asks to press the vol + to flash again. No matter how many times I try this, it comes back to the press vol + to flash and vol down to cancel.

When I try the noob guide for flashing through RUU option then I get the below error always. I installed the drivers correctly also.

PS C:\Users\Cliffs\Desktop\Htc spl fastboot exe\Htc spl fastboot exe> fastboot devices
GD6ALB800155 fastboot
PS C:\Users\Cliffs\Desktop\Htc spl fastboot exe\Htc spl fastboot exe> fastboot oem rebootRUU
...
OKAY [ 0.049s]
finished. total time: 0.050s
PS C:\Users\Cliffs\Desktop\Htc spl fastboot exe\Htc spl fastboot exe> fastboot flash zip 2PQ8IMG.zip
target reported max download size of 800000000 bytes
Invalid sparse file format at header magi
error: write_sparse_skip_chunk: don't care size 961965420 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 161967468 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 32108 is not a multiple of the block size 4096
sending sparse 'zip' (781250 KB)...
error: write_sparse_skip_chunk: don't care size 961965420 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 961965420 is not a multiple of the block size 4096
OKAY [ 56.745s]
writing 'zip'...
(bootloader) HOSD CL#826250
(bootloader) ERR lzipv2_init : Cannot open file /dev/fastboot_download_s
(bootloader) o5Wp2
(bootloader) ERR [SD_UPDATE_ERR] update_fb_ZIP_buf: can not find ZIP hea
(bootloader) der
(bootloader) ERR [SD_UPDATE_ERR] sddownload failed: 22
(bootloader) ERR Update zip file failed.
(bootloader) ERR ZIP ERROR, exit read zip loop
(bootloader) ERR ZIP signature checking failed...
(bootloader) Update zip file OK
(bootloader) ERR ZIP ERROR CODE, 22
(bootloader) end@Done
FAILED (remote: 22: fail to flash via downloadzip)
finished. total time: 81.029s
PS C:\Users\Cliffs\Desktop\Htc spl fastboot exe\Htc spl fastboot exe>

And the phone keeps restarting again and again during the flashing process in RUU mode. The percentage runs from 0 to 100 and then it restarts and flashes all over again. The max I left it to flash and restart on it's own is 4 hrs.

This is the noob guide I followed - [Noob Guide] HTC Zip Format File Flashing & Via SdCard Flashing Guide !!

This is the flashing zip that I've used - 2PQ8IMG_A50CML_DTUL_L51_DESIRE_SENSE70_hTC_Asia_In dia_1.33.720.1_488402_signed_2_4_by_jamesjerss_gsm developers.com

Model : HTC_A50CML_DTUL
IMEI : 352731080316544
Build : 1.33.720.1
CID : HTC__038
HBoot : 1.01.0000
MID : 2PQ810000
Security : CURITY FAILED (REMOTE: UNKNOWN COMMAND)
Region : ASIA_INDIA
RBSofts V1.3 Mobile Tool.

PS C:\adb> fastboot devices
GD6ALB800155 fastboot
PS C:\adb> fastboot getvar all
(bootloader) kernel: lk
(bootloader) product: htc_a50cml_dtul
(bootloader) version: 1.0
(bootloader) imei: 352731080316544
(bootloader) version-main: 1.33.720.1
(bootloader) boot-mode: download
(bootloader) version-baseband: READ version-baseband ERROR
(bootloader) version-bootloader: 1.01.0000
(bootloader) mid: 2PQ810000
(bootloader) cid: HTC__038
all:
finished. total time: 0.021s
PS C:\adb>

Please help someone.