[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] lviwer2:
Hi guys I tried to do it and probably brick my device.

Could you confirm that? I read a lot of articles and looks that there is no solution for that ;/

I changed all according to:

Unfortunately I did not unlock device state, so my device is now in reboot loop. There is no option for Download mode.

FastBoot Mode

Product_name HTC_Phone

Variant SDM UFC

Bootloader version -

BaseBand Version -

Serial Number - XXXXX

SecureBoot PRODUCTION

Secure state -S-ON <-- probably that caused the problem.

Device state - LOCKED (L) <-- probably that caused the problem.

Key State - NONE

***Software status: Modified ***

This device is corrupt. It can't be trusted and will not boot.

Commands in console returns:

PS C:\Users\Natalia> fastboot getvar all

(bootloader) avb_err:0(0)

(bootloader) is_avb_critical_error:no

(bootloader) boot-mode:FASTBOOT

(bootloader) hw-revision:20001

(bootloader) unlocked:no

(bootloader) off-mode-charge:0

(bootloader) charger-screen-enabled:0

(bootloader) battery-soc-ok:yes

(bootloader) battery-voltage:4361

(bootloader) version-baseband:

(bootloader) version-bootloader:

(bootloader) erase-block-size: 0x1000

(bootloader) logical-block-size: 0x1000

(bootloader) variant:SDM UFS

(bootloader) partition-type:reserve5:raw

(bootloader) partition-size:reserve5: 0xB1000

(bootloader) partition-type:modemst2:raw

(bootloader) partition-size:modemst2: 0x200000

(bootloader) partition-type:modemst1:raw

(bootloader) partition-size:modemst1: 0x200000

(bootloader) partition-type:fsc:raw

(bootloader) partition-size:fsc: 0x100000

(bootloader) partition-type:fsg:raw

(bootloader) partition-size:fsg: 0x200000

(bootloader) partition-type:mfg:raw

(bootloader) partition-size:mfg: 0x40000

(bootloader) partition-type:board_info:raw

(bootloader) partition-size:board_info: 0x4000

(bootloader) partition-type:reserve4:raw

(bootloader) partition-size:reserve4: 0x326000

(bootloader) partition-type:avb_rec:raw

(bootloader) partition-size:avb_rec: 0x4000

(bootloader) partition-type:storsec:raw

(bootloader) partition-size:storsec: 0x20000

(bootloader) partition-type:logdump:raw

(bootloader) partition-size:logdump: 0x4000000

(bootloader) partition-type:sti:raw

(bootloader) partition-size:sti: 0x200000

(bootloader) partition-type:logfs:raw

(bootloader) partition-size:logfs: 0x800000

(bootloader) partition-type:toolsfv:raw

(bootloader) partition-size:toolsfv: 0x100000

(bootloader) partition-type:limits:raw

(bootloader) partition-size:limits: 0x1000

(bootloader) partition-type:sp1:raw

(bootloader) partition-size:sp1: 0x20A4000

(bootloader) partition-type:dpo:raw

(bootloader) partition-size:dpo: 0x1000

(bootloader) partition-type:msadp:raw

(bootloader) partition-size:msadp: 0x40000

(bootloader) partition-type:apdp:raw

(bootloader) partition-size:apdp: 0x40000

(bootloader) partition-type:dip:raw

(bootloader) partition-size:dip: 0x100000

(bootloader) partition-type:devinfo:raw

(bootloader) partition-size:devinfo: 0x1000

(bootloader) partition-type:sec:raw

(bootloader) partition-size:sec: 0x4000

(bootloader) partition-type:dtbo_b:raw

(bootloader) partition-size:dtbo_b: 0x800000

(bootloader) partition-type:vbmeta_b:raw

(bootloader) partition-size:vbmeta_b: 0x10000

(bootloader) partition-type:vendor_b:raw

(bootloader) partition-size:vendor_b: 0x40000000

(bootloader) partition-type:qupfw_b:raw

(bootloader) partition-size:qupfw_b: 0x10000

(bootloader) partition-type:devcfg_b:raw

(bootloader) partition-size:devcfg_b: 0x20000

(bootloader) partition-type:cmnlib64_b:raw

(bootloader) partition-size:cmnlib64_b: 0x80000

(bootloader) partition-type:cmnlib_b:raw

(bootloader) partition-size:cmnlib_b: 0x80000

(bootloader) partition-type:hosd_b:raw

(bootloader) partition-size:hosd_b: 0x2000000

(bootloader) partition-type:boot_b:raw

(bootloader) partition-size:boot_b: 0x4000000

(bootloader) partition-type:lockbooter_b:raw

(bootloader) partition-size:lockbooter_b: 0x80000

(bootloader) partition-type:keymaster_b:raw

(bootloader) partition-size:keymaster_b: 0x80000

(bootloader) partition-type:dsp_b:raw

(bootloader) partition-size:dsp_b: 0x2000000

(bootloader) partition-type:abl_b:raw

(bootloader) partition-size:abl_b: 0x100000

(bootloader) partition-type:mdtp_b:raw

(bootloader) partition-size:mdtp_b: 0x2000000

(bootloader) partition-type:mdtpsecapp_b:raw

(bootloader) partition-size:mdtpsecapp_b: 0x400000

(bootloader) partition-type:bluetooth_b:raw

(bootloader) partition-size:bluetooth_b: 0x100000

(bootloader) partition-type:radio_b:raw

(bootloader) partition-size:radio_b: 0x6E00000

(bootloader) partition-type:pmic_b:raw

(bootloader) partition-size:pmic_b: 0x80000

(bootloader) partition-type:hyp_b:raw

(bootloader) partition-size:hyp_b: 0x80000

(bootloader) partition-type:tz_b:raw

(bootloader) partition-size:tz_b: 0x200000

(bootloader) partition-type:aop_b:raw

(bootloader) partition-size:aop_b: 0x80000

(bootloader) partition-type:dtbo_a:raw

(bootloader) partition-size:dtbo_a: 0x800000

(bootloader) partition-type:vbmeta_a:raw

(bootloader) partition-size:vbmeta_a: 0x10000

(bootloader) partition-type:vendor_a:raw

(bootloader) partition-size:vendor_a: 0x40000000

(bootloader) partition-type:qupfw_a:raw

(bootloader) partition-size:qupfw_a: 0x10000

(bootloader) partition-type:devcfg_a:raw

(bootloader) partition-size:devcfg_a: 0x20000

(bootloader) partition-type:cmnlib64_a:raw

(bootloader) partition-size:cmnlib64_a: 0x80000

(bootloader) partition-type:cmnlib_a:raw

(bootloader) partition-size:cmnlib_a: 0x80000

(bootloader) partition-type:hosd_a:raw

(bootloader) partition-size:hosd_a: 0x2000000

(bootloader) partition-type:boot_a:raw

(bootloader) partition-size:boot_a: 0x4000000

(bootloader) partition-type:lockbooter_a:raw

(bootloader) partition-size:lockbooter_a: 0x80000

(bootloader) partition-type:keymaster_a:raw

(bootloader) partition-size:keymaster_a: 0x80000

(bootloader) partition-type:dsp_a:raw

(bootloader) partition-size:dsp_a: 0x2000000

(bootloader) partition-type:abl_a:raw

(bootloader) partition-size:abl_a: 0x100000

(bootloader) partition-type:mdtp_a:raw

(bootloader) partition-size:mdtp_a: 0x2000000

(bootloader) partition-type:mdtpsecapp_a:raw

(bootloader) partition-size:mdtpsecapp_a: 0x400000

(bootloader) partition-type:bluetooth_a:raw

(bootloader) partition-size:bluetooth_a: 0x100000

(bootloader) partition-type:radio_a:raw

(bootloader) partition-size:radio_a: 0x6E00000

(bootloader) partition-type:pmic_a:raw

(bootloader) partition-size:pmic_a: 0x80000

(bootloader) partition-type:hyp_a:raw

(bootloader) partition-size:hyp_a: 0x80000

(bootloader) partition-type:tz_a:raw

(bootloader) partition-size:tz_a: 0x200000

(bootloader) partition-type:aop_a:raw

(bootloader) partition-size:aop_a: 0x80000

(bootloader) partition-type:ddr:raw

(bootloader) partition-size:ddr: 0x3BB000

(bootloader) partition-type:cdt:raw

(bootloader) partition-size:cdt: 0x20000

(bootloader) partition-type:padding3:raw

(bootloader) partition-size:padding3: 0x1A000

(bootloader) partition-type:xbl_config_b:raw

(bootloader) partition-size:xbl_config_b: 0x20000

(bootloader) partition-type:xbl_b:raw

(bootloader) partition-size:xbl_b: 0x3D5000

(bootloader) partition-type:xbl_config_a:raw

(bootloader) partition-size:xbl_config_a: 0x20000

(bootloader) partition-type:xbl_a:raw

(bootloader) partition-size:xbl_a: 0x3D5000

(bootloader) partition-type:reserve0:raw

(bootloader) partition-size:reserve0: 0x140000

(bootloader) partition-type:userdata:ext4

(bootloader) partition-size:userdata: 0xC55000000

(bootloader) partition-type:system_b:ext4

(bootloader) partition-size:system_b: 0xEAC00000

(bootloader) partition-type:system_a:ext4

(bootloader) partition-size:system_a: 0xEAC00000

(bootloader) partition-type:cota:raw

(bootloader) partition-size:cota: 0x3C00000

(bootloader) partition-type:carrier:raw

(bootloader) partition-size:carrier: 0x2D00000

(bootloader) partition-type:local:raw

(bootloader) partition-size:local: 0x141000

(bootloader) partition-type:frp:raw

(bootloader) partition-size:frp: 0x80000

(bootloader) partition-type:control:raw

(bootloader) partition-size:control: 0x8000

(bootloader) partition-type:extra:raw

(bootloader) partition-size:extra: 0x20000

(bootloader) partition-type:fataldevlog:raw

(bootloader) partition-size:fataldevlog: 0x1400000

(bootloader) partition-type:devlog:raw

(bootloader) partition-size:devlog: 0x1E00000

(bootloader) partition-type:tool_diag:raw

(bootloader) partition-size:tool_diag: 0xA00000

(bootloader) partition-type:ramdump:raw

(bootloader) partition-size:ramdump: 0xA00000

(bootloader) partition-type:oem_misc:raw

(bootloader) partition-size:oem_misc: 0x100000

(bootloader) partition-type:misc:raw

(bootloader) partition-size:misc: 0x100000

(bootloader) partition-type:pg1fs:raw

(bootloader) partition-size:pg1fs: 0x400000

(bootloader) partition-type:hvbmeta:raw

(bootloader) partition-size:hvbmeta: 0x17B0000

(bootloader) partition-type:persist:raw

(bootloader) partition-size:persist: 0x2000000

(bootloader) partition-type:ssd:raw

(bootloader) partition-size:ssd: 0x2000

(bootloader) partition-type:padding0:raw

(bootloader) partition-size:padding0: 0x1A000

(bootloader) has-slot:modem:no

(bootloader) has-slot:system:yes

(bootloader) current-slot:b

(bootloader) has-slot:boot:yes

(bootloader) slot-retry-count:b:7

(bootloader) slot-unbootable:b:no

(bootloader) slot-successful:b:no

(bootloader) slot-retry-count:a:7

(bootloader) slot-unbootable:a:yes

(bootloader) slot-successful:a:no

(bootloader) slot-count:2

(bootloader) secure:yes

(bootloader) serialno:XXXXXXXXXX

(bootloader) product:

(bootloader) max-download-size:536870912

(bootloader) kernel:uefi

----------------

PS C:\Users\Natalia> fastboot boot "C:\Users\Natalia\Desktop\Android 13\boot test\boot_2.55.401.1.img"

downloading 'boot.img'...

OKAY [ 1.415s]

booting...

FAILED (status read failed (Too many links))

finished. total time: 1.537s

PS C:\Users\Natalia> fastboot boot "C:\Users\Natalia\Desktop\Android 13\boot test\2.55.401.1.img"

downloading 'boot.img'...

OKAY [ 1.422s]

booting...

FAILED (remote: Failed to load/authenticate boot image: Load Error)

finished. total time: 1.433s

PS C:\Users\Natalia> adb devices

List of devices attached

PS C:\Users\Natalia> adb reboot download

error: device not found

PS C:\Users\Natalia> fastboot boot "C:\Users\Natalia\Desktop\Android 13\twrp-3.7.0_9-0-ime.img"

downloading 'boot.img'...

OKAY [ 0.774s]

booting...

FAILED (remote: Failed to load/authenticate boot image: Load Error)

finished. total time: 0.784s

PS C:\Users\Natalia> fastboot flash boot_a "C:\Users\Natalia\Desktop\Android 13\twrp-3.7.0_9-0-ime.img"

target reported max download size of 536870912 bytes

sending 'boot_a' (35704 KB)...

OKAY [ 0.777s]

writing 'boot_a'...

FAILED (remote: Not allowed on PRODUCTION device)

finished. total time: 0.781s

Is there is any hope to solve that? That was my first try to midify HTC U12+.

Thank you in advance!