[Google Pixel 3 XL Questions & Answers] lukefgoogler:
ETA: YAY, I'M BACK UP AND RUNNING AFTER USING STOCK RECOVERY TO SIDELOAD THE FULL OTA. THANKS EVERYONE, YOU'VE MADE MY DAY!!!

Hello all, I'm hoping someone has some advice:

I downloaded the 1/2020 factory image, removed the -w from the .bat file so I didn't lose data, and tried to flash the update via fastboot. Unfortunately, after the phone rebooted into fastbootd during the process, I got an error that says "write to device failed" when sending product. I can't get my system back up, but I can reboot into bootloader and enter recovery. Here is the output from when I tried to flash-all.bat from my computer to write the january update:

PS C:\Users\lukef\Documents\Phone stuff\Pixel 3 XL\crosshatch-qq1a.200105.002> .\flash-all.bat

Sending 'bootloader_a' (8521 KB) OKAY [ 0.141s]

Writing 'bootloader_a' (bootloader) Flashing Pack version b1c1-0.2-5946827

(bootloader) Flashing partition table for Lun = 0

(bootloader) Flashing partition table for Lun = 1

(bootloader) Flashing partition table for Lun = 2

(bootloader) Flashing partition table for Lun = 4

(bootloader) Flashing partition table for Lun = 5

(bootloader) Flashing partition msadp_a

(bootloader) Flashing partition xbl_a

(bootloader) Flashing partition xbl_config_a

(bootloader) Flashing partition aop_a

(bootloader) Flashing partition tz_a

(bootloader) Flashing partition hyp_a

(bootloader) Flashing partition abl_a

(bootloader) Flashing partition keymaster_a

(bootloader) Flashing partition cmnlib_a

(bootloader) Flashing partition cmnlib64_a

(bootloader) Flashing partition devcfg_a

(bootloader) Flashing partition qupfw_a

(bootloader) Flashing partition storsec_a

(bootloader) Flashing partition logfs

OKAY [ 0.281s]

Finished. Total time: 0.672s

Rebooting into bootloader OKAY [ 0.047s]

Finished. Total time: 0.062s

Sending 'radio_a' (71404 KB) OKAY [ 0.484s]

Writing 'radio_a' (bootloader) Flashing Pack version SSD:g845-00086-191011-B-5933466

(bootloader) Flashing partition modem_a

OKAY [ 0.297s]

Finished. Total time: 1.031s

Rebooting into bootloader OKAY [ 0.047s]

Finished. Total time: 0.047s

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

Bootloader Version...: b1c1-0.2-5946827

Baseband Version.....: g845-00086-191011-B-5933466

Serial Number........: 894Y03RLY

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

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

Checking 'product' OKAY [ 0.055s]

Checking 'version-bootloader' OKAY [ 0.050s]

Checking 'version-baseband' OKAY [ 0.046s]

Setting current slot to 'a' OKAY [ 0.062s]

extracting boot.img (64 MB) to disk... took 0.250s

archive does not contain 'boot.sig'

Sending 'boot_a' (65536 KB) OKAY [ 0.453s]

Writing 'boot_a' OKAY [ 0.203s]

extracting dtbo.img (8 MB) to disk... took 0.063s

archive does not contain 'dtbo.sig'

Sending 'dtbo_a' (8192 KB) OKAY [ 0.125s]

Writing 'dtbo_a' OKAY [ 0.063s]

archive does not contain 'dt.img'

archive does not contain 'recovery.img'

extracting vbmeta.img (0 MB) to disk... took 0.000s

archive does not contain 'vbmeta.sig'

Sending 'vbmeta_a' (4 KB) OKAY [ 0.109s]

Writing 'vbmeta_a' OKAY [ 0.062s]

archive does not contain 'vbmeta_system.img'

archive does not contain 'vendor_boot.img'

extracting super_empty.img (0 MB) to disk... took 0.000s

Rebooting into fastboot OKAY [ 0.047s]

< waiting for any device >

Sending 'system_a' (4 KB) OKAY [ 0.000s]

Updating super partition OKAY [ 0.031s]

Resizing 'product_a' OKAY [ 0.004s]

Resizing 'system_a' OKAY [ 0.000s]

Resizing 'vendor_a' OKAY [ 0.010s]

archive does not contain 'boot_other.img'

archive does not contain 'odm.img'

extracting product.img (1984 MB) to disk... took 8.416s

archive does not contain 'product.sig'

Sending 'product' (2032548 KB) FAILED (Write to device failed (Invalid argument))

fastboot: error: Command failed

Press any key to exit...

This happens with both the .002 factory image (the correct one for my at&t phone), and the .003 TMO/Fi image. Anyone have any ideas? I'm desperate!