HTC A9 downgrade for Android 7 problem

[N-RG]

Hello to all! Have some problem with HTC A9 Sprint version. Cant downgrade firmware from Android 7 to 6.x. S-OFF already done. As I readed before for this operation needed partial flash. But I cant find it at support area. Please help!


error:

(bootloader) ERR check AES encrypted magic string failed.
(bootloader) end@Done

[xtc2clip]

Hello!

Sorry for late answer.
I have uploaded it for you.
File no. is 494945

[N-RG]

Originally Posted by xtc2clip

Hello!

Sorry for late answer.
I have uploaded it for you.
File no. is 494945

the same error after flshing partial flsh file

writing 'zip'...
(bootloader) HOSD CL#861755
(bootloader) ERR check AES encrypted magic string failed.
(bootloader) end@Done
FAILED (remote: 12 RU_ZIP_ERROR )




Reading information...
Using Fastboot mode...
Reading common information
(bootloader) kernel: lk
(bootloader) product: htc_hiaewhl
(bootloader) version: 1.0
(bootloader) max-download-size: 1164800000
(bootloader) serialno: HT691SZ02820
(bootloader) slot-count: 0
(bootloader) current-slot:
(bootloader) imei: 990005706520773
(bootloader) version-main: 2.18.651.2
(bootloader) boot-mode: RUU
(bootloader) version-baseband: 1.1.C40062.1@61213
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 2PQ930000
(bootloader) cid: SPCS_001

[xtc2clip]

It's not possible to get same error after partial, check your flash file then.

[babaj1de]

im having an issue with updating to Nougat

writing 'zip'...
(bootloader) HOSD CL#861755
(bootloader) ERR check AES encrypted magic string failed.
(bootloader) end@Done
FAILED (remote: 12 RU_ZIP_ERROR )

[N-RG]

Originally Posted by xtc2clip

It's not possible to get same error after partial, check your flash file then.

maybe you don not understand me, I need downgrade firmware. This error not happened when I flashing android 7

[xtc2clip]

Originally Posted by N-RG

maybe you don not understand me, I need downgrade firmware. This error not happened when I flashing android 7

Do you flash original flash file? From our support?

[N-RG]

Originally Posted by xtc2clip

Do you flash original flash file? From our support?

yes. Im tried to flash 4pcs other firmware files from support area

[N-RG]

the phone hardware was damaged

[MD MILON HOSSAN]

my set partial file flash this problem (bootloader) lash_images fail, err 21
(bootloader) ERR [SD_UPDATE_ERR] update_fb_ZIP_buf: fail to flash zip: 2
(bootloader) ERR [SD_UPDATE_ERR] sddownload failed: 21
(bootloader) ERR Update zip file failed.
(bootloader) Update zip file OK
(bootloader) ERR ZIP ERROR CODE, 21
(bootloader) end@Done
FAILED (remote: 21 RU_UNZIP_FAIL )
finished. total time: 8.432s
HBoot pre-update sequence
Flash process completed.
Flash not successfull, reboot will not be done pl urgent solition

[xtc2clip]

Originally Posted by MD MILON HOSSAN

my set partial file flash this problem (bootloader) lash_images fail, err 21
(bootloader) ERR [SD_UPDATE_ERR] update_fb_ZIP_buf: fail to flash zip: 2
(bootloader) ERR [SD_UPDATE_ERR] sddownload failed: 21
(bootloader) ERR Update zip file failed.
(bootloader) Update zip file OK
(bootloader) ERR ZIP ERROR CODE, 21
(bootloader) end@Done
FAILED (remote: 21 RU_UNZIP_FAIL )
finished. total time: 8.432s
HBoot pre-update sequence
Flash process completed.
Flash not successfull, reboot will not be done pl urgent solition

Feels like your file is damaged, please check MD5 hash and/or re-download again.

[MD MILON HOSSAN]

Do you flash original flash file? From our support?

[MD MILON HOSSAN]

my file download your sapport site.fast flash this file
2PQ9IMG_HIA_AERO_WHL_N70_SENSE80GP_SPCS_MR_Sprint_ WWE_2.18.651.2_Radio_1.1.C40062.1@61213_15.00_CNV_ CNV_AERO_SPCS_1.15_003_release_494945_partial_2_4
but same problem
flashing set show hosd_signed img fail
pl sir solition

[xtc2clip]

Originally Posted by MD MILON HOSSAN

my file download your sapport site.fast flash this file
2PQ9IMG_HIA_AERO_WHL_N70_SENSE80GP_SPCS_MR_Sprint_ WWE_2.18.651.2_Radio_1.1.C40062.1@61213_15.00_CNV_ CNV_AERO_SPCS_1.15_003_release_494945_partial_2_4
but same problem
flashing set show hosd_signed img fail
pl sir solition

Please post phone info.

[MD MILON HOSSAN]

Reading information...
Using Fastboot mode...
Reading common information
(bootloader) kernel: lk
(bootloader) product: htc_hiaewhl
(bootloader) version: 1.0
(bootloader) max-download-size: 1164800000
(bootloader) serialno: HT5AHSZ03787
(bootloader) slot-count: 0
(bootloader) current-slot:
(bootloader) imei: 990005704630384
(bootloader) version-main: 2.18.651.2
(bootloader) boot-mode: download
(bootloader) version-baseband: 1.1.C40062.1@61213
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 2PQ930000
(bootloader) cid: 11111111
all:
Execution time is 10(ms)
Reading CID information
... (bootloader) cid: 11111111
OKAY
Execution time is 50(ms)
Reading MEID information
... (bootloader) meid: 99000570463038
OKAY
Execution time is 0(ms)
Reading IMEI1 information
... (bootloader) imei: 990005704630384
OKAY
Execution time is 0(ms)
Reading IMEI2 information
... (bootloader) imei2:
OKAY
Execution time is 0(ms)
Reading secure flag information
... (bootloader) Device security level S-OFF
OKAY
Execution time is 10(ms)
Reading serial number information
... (bootloader) Device Serial No. is HT5AHSZ03787
OKAY
Execution time is 0(ms)
Read information completed.