Can't flash any version past 4.0.4

[bbond]

This phone was running 4.1.2 before I accidentally started flashing Asus Transformer files to it. After I quickly unplugged, I couldn't reboot and all this trouble started. I can add more detail, but basically through a lot of trial and error I'm finding that anything I flash past 4.0.4 gives me a bootloop at the boot animation. I've waited for 30+ minutes to make sure it wasn't just taking awhile with no luck.

With toolkits and also manually, I've relocked, unrooted, re-ROMed, unlocked, rooted, flashed, restored, etc about 50 times. The end result is always that I can't get any JellyBean ROMs to load. Are there files that don't get overwritten that I should start focusing on? I've even manually loaded a JellyBean bootloader, with no change in success. Please help, I want my Google Now back!

 

[yodatom10]

This phone was running 4.1.2 before I accidentally started flashing Asus Transformer files to it. After I quickly unplugged, I couldn't reboot and all this trouble started. I can add more detail, but basically through a lot of trial and error I'm finding that anything I flash past 4.0.4 gives me a bootloop at the boot animation. I've waited for 30+ minutes to make sure it wasn't just taking awhile with no luck.



With toolkits and also manually, I've relocked, unrooted, re-ROMed, unlocked, rooted, flashed, restored, etc about 50 times. The end result is always that I can't get any JellyBean ROMs to load. Are there files that don't get overwritten that I should start focusing on? I've even manually loaded a JellyBean bootloader, with no change in success. Please help, I want my Google Now back!

have you tried using the system images provided by google?
http://forums.androidcentral.com/showthread.php?t=141360

 

[bbond]

have you tried using the system images provided by google?

Yes, I followed that guide with no luck. The only stock images that'll work are 4.0.4 and earlier. I've flashed them manually and by using Wug's toolkit and the Galaxy Nexus toolkit.