[Xoom Q&A, Help & Troubleshooting] Skully1983:
Unbrick RSD Mode 2

I don't know what version xoom you are using, or under what circumstances you bricked your xoom under, but I managed to get mine (3g, USA) out of RSD 2 this way after it wouldn't boot coming out of a botched automated unroot/relock procedure. You may want to try this to get back to stock and working again, and then redo all the rooting and tweaks. I am going to go on the notion that you use windows (I use windows 7 64bit, but the steps should be the same or similar for other versions), have android sdk installed, and know what fastboot is.

... but first a few disclaimers!

1) If everything is fine now, disregard this reply!

2) I am in no way an expert in unbricking xooms, this is just how I figured it out for my situation.

3) Again, this is how I unbricked MY xoom, it may or may not work for you. If something here doesn't work for you, I really can't help.

4) I am not as big of a douche bag as I sound like in the last couple of disclaimers. If you are stuck and there is something I forgot to mention, I'll try to help.

4) You are probably having the same problem as someone else. As much as I hate to say it... GOOGLE IT! Just make sure you have all the error codes and include how you bricked your device. Horrible example: " R2D2 mode after I tried to turn my xoom into an autonomous killing machine by feeding my device crepes error code xx42" Bad example, yet it's very (odd) specific.

5) Don't be offended if I go into details that seem way below you. Someone else may need to read this, and may not understand everything you or I do. I try to break everything down as much as I can. Also, if I didn't go far enough into detail, let me know.

6) I inserted two 4's to see if you are really taking the time to read the entire post so the first 4 may not be true!

7) Once you get fastboot working, and the bootloader unlocked, the brick may be undone. I have you get the stock images just in case. Following the last part of the post will wipe your data.

Now back to our regularly scheduled programming...

1) Download the correct stock system software (wifi/3g) from motodev.

motorola.com/products/software/?utm_campaign=xoomsoftware&utm_medium=motorolacom&utm_source=supportforums&utm_term=unlockboard&pubid=987654

You have to register on the site. I would attach the files, but I agreed to a nice end user agreement saying I will not redistribute them. Also, I can't post links yet since I am still new so the beginning of the url is missing. There are posts in the xoom development forum that link to the file.

2) Unzip the contents to the folder where fastboot is located. Usually located in C:/program files/android/android-sdk/tools, or C:/program files (x86)/android/android-sdk/tools if you use a 64bit version of windows.

3) Power on the xoom and get into fastboot by holding the volume down button as soon the moto logo shows. I noticed it took a little while longer than usual for fastboot to show up.

I noticed in the original post that the user said Volume up + Power. That is how you hard reboot... or do a dragon punch...I forget.

4) Once the device shows fastboot is running, Open a command prompt ( start, all programs, accessories, command prompt, or type cmd in the search bar ). Next type/copy these commands minus any comments marked by "<---". Note that every new line is a new command:

ON THE PC:

cd c:/program files/android/android-sdk/tools <---May be different depending upon what version of windows you are using. Replace 'programs files' with 'program files (x64)' if using 64 bit windows. If all else fails, type cd then copy one of the paths from step 2.

fastboot oem unlock <---This MAY solve your problem right here

should say check your device for instruction. On the xoom, hit volume down, then volume up, voulme down again, and volume up again to confirm the unlock.

When I did that my xoom rebooted, and I was back in business; however, if the unlock worked and you are still not able to boot, let's get back to stock. Get the xoom back into fastboot again by holding the volume down button while it starts.

ON THE PC:

You should still be in the same command prompt from earlier.

fastboot flash userdata userdata.img

fastboot flash system system.img

fastboot flash boot boot.img

fastboot flash recovery recovery.img

fastboot oem lock

This will wipe your xoom completely, but your nice shiny paperweight should be less paperweight like. I do the relock for good measure just because I think I left it unlocked, then I received an OTA update, and got good RSD Mode 2 again for some reason. If you want, try it without the fastboot oem lock command in case you want to get right back into rooting, flashing recoveries, etc... Well, hope all this helped. Again if clarification is needed, let me know and I will try to help. Hope this works. Take it easy!