htc 826 unknown baseband after flash

hello xtc team
plz i have a problem
i tried to flash htc 826 but after flash unknown baseband
and no imei
i tried all firmware from support but no success
i tried too repair imei but no success
what is the problem here >>??

this is fastboot info

Reading information…
Using Fastboot mode…
Reading common information
(bootloader) version: 0.5
(bootloader) version-bootloader:
(bootloader) version-baseband: 1.25.C20413.3@50428
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 1.15.720.6
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno: CC59FYG05813
(bootloader) imei: 359632061869050
(bootloader) imei2: 359632061869068
(bootloader) meid: A1000037E2F443
(bootloader) product: a52_dwgl
(bootloader) platform: hTCBmsm8939
(bootloader) modelid: 0PHC41000
(bootloader) cidnum: 11111111
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 449df917
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
(bootloader) mfg-name: 1001
Execution time is 31(ms)
all: Done!
Reading secure flag information
… (bootloader) secure_flag: 0
Execution time is 15(ms)
Reading CID information
… (bootloader) cid: 11111111
Execution time is 15(ms)
Reading MEID information
… (bootloader) meid: A1000037E2F443
Execution time is 15(ms)
Read information completed.