Have a rooted ATRIX 4G and tried to update...

[Harleen]

... and now all it does is reboot and goto

Failed to boot 2
Starting RSD mode

I have no idea what to do. I can't get to anything before it resets...

[cogeary]

Have you ever attempted to install CWM to your Atrix? We're 99% sure that that's what's caused the "Failed to boot 2" errors after installing the update.

Try pulling the battery, waiting 5 seconds, and then replacing it. Turn your phone back on. As quickly as possible, go to Settings -> About Phone and jot down what's under "Android version." It should say 2.3.4, correct?

[Harleen]

I tried pulling the battery, just does the same thing over and over...

And I think so, yes.

Have you ever attempted to install CWM to your Atrix? We're 99% sure that that's what's caused the "Failed to boot 2" errors after installing the update.

Try pulling the battery, waiting 5 seconds, and then replacing it. Turn your phone back on. As quickly as possible, go to Settings -> About Phone and jot down what's under "Android version." It should say 2.3.4, correct?

[cogeary]

You need to flash the 2.3.4 sbf:

Read this on how to flash an sbf, then read it again. Make sure that you understand everything you need to do, and then follow the instructions using this sbf: http://www.4shared.com/archive/viniG...4591-1106.html

What this will do is return you all the way to stock (but preserve your settings/apps). That way root should be removed, as well as any traces as CWM (what's causing the problem), and you should be able to install the update.

[Harleen]

Okay. Imma try it. Would I have a problem if I flashed a new ROM instead since I can get into recovery?

You need to flash the 2.3.4 sbf:

Read this on how to flash an sbf, then read it again. Make sure that you understand everything you need to do, and then follow the instructions using this sbf: 1ff-olympus-user-2.3.4-4.5.91-110625-release-keys-signed-att-us-gas_na_olpsgbattspe_p011.sbf.gz - 4shared.com - online file sharing and storage - download

What this will do is return you all the way to stock (but preserve your settings/apps). That way root should be removed, as well as any traces as CWM (what's causing the problem), and you should be able to install the update.

[cogeary]

Okay. Imma try it. Would I have a problem if I flashed a new ROM instead since I can get into recovery?

Is your bootloader unlocked?

Flashing a ROM might work but it also might worsen your problems. I suggest you flash the sbf to get a clean base and then work your way from there.

[Harleen]

No, it's not that I know of. And okay.

Is your bootloader unlocked?

Flashing a ROM might work but it also might worsen your problems. I suggest you flash the sbf to get a clean base and then work your way from there.

[Harleen]

Is there another place I can download that file?

Is your bootloader unlocked?

Flashing a ROM might work but it also might worsen your problems. I suggest you flash the sbf to get a clean base and then work your way from there.

[cogeary]

Is there another place I can download that file?

EDIT Yes there is! Try here: http://minus.com/mJoT2ptfj#2f

good luck!