Reboot straight to the bootloader and try sending the pieces individually. I've had a few people do that with success, see earlier in the thread.
The boot part it is stalling at is just the stock kernel, won't brick if you boot back to bootloader and try again. Also you may just need to reinstall the drivers or even simply try a different usb port (rear ones are best). Do that first in fact
Sent from my Nexus 4 using Tapatalk 2
Hmm I did try moving to the rear, it did help. I'll try switching to a different rear port. Then I'll try installing the drivers all over again, thanks!
Tried doing things one-by-one manually, but I get stuck at "fastboot erase userdata"
c:\android sdk platform\sdk\platform-tools>fastboot erase boot
erasing 'boot'...
OKAY [ 0.773s]
finished. total time: 0.774s
c:\android sdk platform\sdk\platform-tools>fastboot erase cache
******** Did you mean to fastboot format this partition?
erasing 'cache'...
OKAY [ 0.679s]
finished. total time: 0.681s
c:\android sdk platform\sdk\platform-tools>fastboot erase recovery
erasing 'recovery'...
OKAY [ 0.637s]
finished. total time: 0.638s
c:\android sdk platform\sdk\platform-tools>fastboot erase system
******** Did you mean to fastboot format this partition?
erasing 'system'...
OKAY [ 0.802s]
finished. total time: 0.804s
c:\android sdk platform\sdk\platform-tools>fastboot erase userdata
******** Did you mean to fastboot format this partition?
erasing 'userdata'...
Got to this part, which is further than I've ever gotten and still stuck at erasing userdata
c:\android sdk platform\sdk\platform-tools>fastboot -w update image-nakasi-jdq39
.zip
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
--------------------------------------------
Bootloader Version...: 4.18
Baseband Version.....: N/A
Serial Number........: 015d256443481c0b
--------------------------------------------
checking product...
OKAY [ 0.030s]
checking version-bootloader...
OKAY [ 0.019s]
sending 'boot' (4944 KB)...
OKAY [ 0.584s]
writing 'boot'...
OKAY [ 1.003s]
sending 'recovery' (5446 KB)...
OKAY [ 0.646s]
writing 'recovery'...
OKAY [ 1.181s]
erasing 'system'...
OKAY [ 0.934s]
sending 'system' (471804 KB)...
OKAY [ 54.565s]
writing 'system'...
OKAY [ 29.695s]
erasing 'userdata'...