[Google Pixel XL Guides, News, & Discussion] Carmenlove:
First: No apology necessary. I am extremely grateful for the help! Everything you suggest is taken with the hope that I can get out of this predicament and get this phone working again.

Second: I wish I could do this. The phone will not boot fully, that is the whole problem. I can't get to the Settings at this time..

Third: Here is the output of #4 with the 'Keep Data' option, removing the '-w' from the flash command. ( I have already done this many times, with each of the A10 versions now, but always using the Wipe option for a clean install, so this may be too late already)

M:\Pixel-XL 10 root\TRY HERE OCT>flash-all

Sending 'bootloader_a' (32480 KB) OKAY [ 0.838s]

Writing 'bootloader_a' FAILED (remote: 'Verify bootloader image failed on production device.')

fastboot: error: Command failed

Rebooting into bootloader OKAY [ 0.010s]

Finished. Total time: 0.016s

Sending 'radio_a' (57156 KB) OKAY [ 1.489s]

Writing 'radio_a' OKAY [ 0.848s]

Finished. Total time: 3.008s

Rebooting into bootloader OKAY [ 0.006s]

Finished. Total time: 0.011s

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

Bootloader Version...: 8996-012001-1907011432

Baseband Version.....: 8996-130361-1905270421

Serial Number........: HT69E0200580

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

extracting android-info.txt (0 MB) to RAM...

Checking 'product' OKAY [ 0.046s]

Checking 'version-bootloader' FAILED

Device version-bootloader is '8996-012001-1907011432'.

Update requires '8996-012001-1908071822'.

fastboot: error: requirements not met!

Press any key to exit...

This was the output. for some reason the first attempt to flash the bootloader always fails. If I do it a second time, it works.

M:\Pixel-XL 10 root\TRY HERE OCT>fastboot flash bootloader bootloader-marlin-8996-012001-1908071822.img

Sending 'bootloader_a' (32480 KB) OKAY [ 0.848s]

Writing 'bootloader_a' FAILED (remote: 'Verify bootloader image failed on production device.')

fastboot: error: Command failed

M:\Pixel-XL 10 root\TRY HERE OCT>fastboot flash bootloader bootloader-marlin-8996-012001-1908071822.img

Sending 'bootloader_a' (32480 KB) OKAY [ 0.847s]

Writing 'bootloader_a' (bootloader) Valid bootloader version.

(bootloader) Flashing active slot "_a"

(bootloader) Flashing active slot "_a"

OKAY [ 13.569s]

Finished. Total time: 14.627s

then:

M:\Pixel-XL 10 root\TRY HERE OCT>fastboot update image-marlin-qp1a.191005.007.a1.zip

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

Bootloader Version...: 8996-012001-1908071822

Baseband Version.....: 8996-130361-1905270421

Serial Number........: HT69E0200580

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

extracting android-info.txt (0 MB) to RAM...

Checking 'product' OKAY [ 0.046s]

Checking 'version-bootloader' OKAY [ 0.044s]

Checking 'version-baseband' OKAY [ 0.045s]

Setting current slot to 'a' OKAY [ 0.402s]

extracting boot.img (30 MB) to disk... took 0.278s

archive does not contain 'boot.sig'

Sending 'boot_a' (30969 KB) OKAY [ 0.798s]

Writing 'boot_a' OKAY [ 0.649s]

archive does not contain 'dtbo.img'

archive does not contain 'dt.img'

archive does not contain 'recovery.img'

archive does not contain 'vbmeta.img'

archive does not contain 'vbmeta_system.img'

archive does not contain 'super_empty.img'

archive does not contain 'boot_other.img'

archive does not contain 'odm.img'

archive does not contain 'product.img'

extracting system.img (1994 MB) to disk... took 13.306s

archive does not contain 'system.sig'

Sending sparse 'system_a' 1/4 (524284 KB) OKAY [ 13.949s]

Writing 'system_a' OKAY [ 3.892s]

Sending sparse 'system_a' 2/4 (524284 KB) OKAY [ 13.966s]

Writing 'system_a' OKAY [ 3.934s]

Sending sparse 'system_a' 3/4 (524284 KB) OKAY [ 13.914s]

Writing 'system_a' OKAY [ 3.890s]

Sending sparse 'system_a' 4/4 (469916 KB) OKAY [ 12.506s]

Writing 'system_a' OKAY [ 3.642s]

archive does not contain 'system_ext.img'

extracting system_other.img (291 MB) to disk... took 2.067s

archive does not contain 'system.sig'

Sending 'system_b' (298348 KB) OKAY [ 7.410s]

Writing 'system_b' OKAY [ 2.490s]

extracting vendor.img (253 MB) to disk... took 1.723s

archive does not contain 'vendor.sig'

Sending 'vendor_a' (259672 KB) OKAY [ 6.408s]

Writing 'vendor_a' OKAY [ 2.198s]

archive does not contain 'vendor_other.img'

Rebooting OKAY [ 0.038s]

Finished. Total time: 119.110s

M:\Pixel-XL 10 root\TRY HERE OCT>

But still, no boot! it just loops from the Google screen to the 'your device cant be checked' screen, back to the Google screen.

I am at a loss. :(

CL