htc 10 after downgrade from 8.0 to 6.0 baseband unknown
 

Reading information...
Using Fastboot mode...
Reading common information
(bootloader) kernel: lk
(bootloader) product: htc_pmeuhljapan
(bootloader) version: 1.0
(bootloader) imei: 357511070354480
(bootloader) version-main: 1.28.970.4
(bootloader) boot-mode: download
(bootloader) version-baseband: [email protected]
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 2PS670000
(bootloader) cid: KDDI_801
all:
finished. total time: 0.017s
htc_fastboot finished
Reading CID information
... (bootloader) cid: KDDI_801
OKAY
finished. total time: 0.153s
htc_fastboot finished
Reading MEID information
... (bootloader) meid:
OKAY
finished. total time: 0.020s
htc_fastboot finished
Reading IMEI1 information
... (bootloader) imei: 357511070354480
OKAY
finished. total time: 0.019s
htc_fastboot finished
Reading IMEI2 information
... (bootloader) imei2:
OKAY
finished. total time: 0.025s
htc_fastboot finished
Reading secure flag information
... (bootloader) Device security level S-OFF
OKAY
finished. total time: 0.027s
htc_fastboot finished
Reading serial number information
... (bootloader) Device Serial No. is FA65ZBN00138
OKAY
finished. total time: 0.021s
htc_fastboot finished
Reading color information
... (bootloader) COLOR ID: BLK00
OKAY
finished. total time: 0.023s
htc_fastboot finished
Read information completed.
Phone DISconnected


i tried to flash back 8.0 2PS6IMG_PERFUME_UHL_O80_SENSE90GP_KDDI_MR_KDDI_JP_ 3.22.970.9_Radio_2.0.U010261a@80208_89.03_F_releas e_523418_signed_2_4, but get error
phone does not accept this flash file

in fastboot

Reading information...
Using Fastboot mode...
Reading common information
(bootloader) kernel: lk
(bootloader) product: htc_pmeuhljapan
(bootloader) version: 1.0
(bootloader) imei: 357511070354480
(bootloader) version-main: 1.28.970.4
(bootloader) boot-mode: RUU
(bootloader) version-baseband: [email protected]
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 2PS670000
(bootloader) cid: KDDI_801
all:
finished. total time: 0.018s
htc_fastboot finished
Reading CID information
... (bootloader) cid: KDDI_801
OKAY
finished. total time: 0.062s
htc_fastboot finished
Reading MEID information
... (bootloader) meid:
OKAY
finished. total time: 0.017s
htc_fastboot finished
Reading IMEI1 information
... (bootloader) imei: 357511070354480
OKAY
finished. total time: 0.021s
htc_fastboot finished
Reading IMEI2 information
... (bootloader) imei2:
OKAY
finished. total time: 0.024s
htc_fastboot finished
Reading secure flag information
... (bootloader) Device security level S-OFF
OKAY
finished. total time: 0.026s
htc_fastboot finished
Reading serial number information
... (bootloader) Device Serial No. is FA65ZBN00138
OKAY
finished. total time: 0.025s
htc_fastboot finished
Reading color information
... (bootloader) COLOR ID: BLK00
OKAY
finished. total time: 0.025s
htc_fastboot finished
Read information completed.


in ruu mode

Starting flash process...
target rom version: 3.22.970.9
found large-zip header, file count: 31
processing file 1/31...
sending 'zip' (138342 KB)...
OKAY [ 7.520s]
writing 'zip'...
(bootloader) HOSD CL#758106
(bootloader) ERR check AES encrypted magic string failed.
(bootloader) end@Done
Flash process completed.

can not flash 8.0 firmware(2PS6IMG_PERFUME_UHL_O80_SENSE90GP_KDDI_MR _KDDI_JP_3.22.970.9_Radio_2.0.U010261a@80208_89.03 _F_release_523418_signed_2_4)