[OnePlus 7T ROMs, Kernels, Recoveries, & Other Deve] ramsankar83:
Looks like something is screwed then.

I did install the ROM from fastbootd (checked is-userspace is YES). Verified checksum of the file i downloaded.

This is my fastboot update command log.

C:\mobile\platform-tools>fastboot update "C:\Users\Ramasubramanian S\Downloads\AOSiP-10-Gapps-hotdogb-20200506-img (2).zip"
--------------------------------------------
Bootloader Version...: unknown
Baseband Version.....:
Serial Number........: f3a226d2
--------------------------------------------
extracting android-info.txt (0 MB) to RAM...
android-info.txt syntax error:
Setting current slot to 'b' OKAY [ 0.031s]
extracting boot.img (96 MB) to disk... took 0.372s
archive does not contain 'boot.sig'
Sending 'boot_b' (98304 KB) OKAY [ 2.330s]
Writing 'boot_b' OKAY [ 0.544s]
extracting dtbo.img (24 MB) to disk... took 0.057s
archive does not contain 'dtbo.sig'
Sending 'dtbo_b' (24576 KB) OKAY [ 0.569s]
Writing 'dtbo_b' OKAY [ 0.150s]
archive does not contain 'dt.img'
extracting recovery.img (96 MB) to disk... took 0.384s
archive does not contain 'recovery.sig'
Sending 'recovery_b' (98304 KB) OKAY [ 2.290s]
Writing 'recovery_b' OKAY [ 0.546s]
extracting vbmeta.img (0 MB) to disk... took 0.000s
archive does not contain 'vbmeta.sig'
Sending 'vbmeta_b' (8 KB) OKAY [ 0.000s]
Writing 'vbmeta_b' OKAY [ 0.000s]
extracting vbmeta_system.img (0 MB) to disk... took 0.000s
archive does not contain 'vbmeta_system.sig'
Sending 'vbmeta_system_b' (4 KB) OKAY [ 0.000s]
Writing 'vbmeta_system_b' OKAY [ 0.000s]
archive does not contain 'vendor_boot.img'
extracting super_empty.img (0 MB) to disk... took 0.000s
Sending 'super' (4 KB) OKAY [ 0.000s]
Updating super partition OKAY [ 0.000s]
Resizing 'odm_b' OKAY [ 0.000s]
Resizing 'product_b' OKAY [ 0.016s]
Resizing 'system_b' OKAY [ 0.000s]
Resizing 'system_a' OKAY [ 0.016s]
Resizing 'vendor_b' OKAY [ 0.000s]
Resizing 'vendor_a' OKAY [ 0.000s]
archive does not contain 'boot_other.img'
extracting odm.img (0 MB) to disk... took 0.000s
archive does not contain 'odm.sig'
Resizing 'odm_b' OKAY [ 0.004s]
Sending 'odm_b' (788 KB) OKAY [ 0.018s]
Writing 'odm_b' OKAY [ 0.440s]
extracting product.img (1143 MB) to disk... took 6.951s
archive does not contain 'product.sig'
Resizing 'product_b' OKAY [ 0.005s]
Sending sparse 'product_b' 1/3 (524284 KB) OKAY [ 12.525s]
Writing 'product_b' OKAY [ 3.160s]
Sending sparse 'product_b' 2/3 (523176 KB) OKAY [ 12.383s]
Writing 'product_b' OKAY [ 3.148s]
Sending sparse 'product_b' 3/3 (123940 KB) OKAY [ 2.976s]
Writing 'product_b' OKAY [ 0.986s]
extracting system.img (921 MB) to disk... took 6.003s
archive does not contain 'system.sig'
Resizing 'system_b' OKAY [ 0.004s]
Sending sparse 'system_b' 1/2 (524284 KB) OKAY [ 12.578s]
Writing 'system_b' OKAY [ 3.175s]
Sending sparse 'system_b' 2/2 (419260 KB) OKAY [ 10.190s]
Writing 'system_b' OKAY [ 2.589s]
archive does not contain 'system_ext.img'
archive does not contain 'system_other.img'
extracting vendor.img (800 MB) to disk... took 4.772s
archive does not contain 'vendor.sig'
Resizing 'vendor_b' OKAY [ 0.004s]
Sending sparse 'vendor_b' 1/2 (524284 KB) OKAY [ 12.497s]
Writing 'vendor_b' OKAY [ 3.178s]
Sending sparse 'vendor_b' 2/2 (295788 KB) OKAY [ 6.974s]
Writing 'vendor_b' OKAY [ 1.920s]
archive does not contain 'vendor_other.img'
Rebooting OKAY [ 0.000s]
Finished. Total time: 124.966s

Still unable to get past boot logo. Any suggestions? I downloaded the file

AOSiP-10-Gapps-hotdogb-20200506-img.zip