[Xoom General] kurtolson:
I don't want to confuse anyone that this set of instructions might be for

Verizon 4G LTE capable devices -- it isn't*

======================================================================

So, I took a Motorola Xoom MZ601 unit I bought off ebay and followed the instructions on this forum to unlock the bootloader, flash a custom recovery, flash the awesome Team Tiamat Rom 2.2.2 - Moray, and finally, work with AT&T to get a "tablet only" data plan (and a new SIM) inserted and working. Yes, you ABSOLUTELY MUST change the APN settings if you are on a "tablet only" plan and don't want to pay $9.99 add a phone charge in addition to $25/mo for 2G of data. I'll document all of that too below.

SUMMARY: I now have a tablet that works with 3G or WIFI both, and is stable.

My biggest problem is that Google has changed how apps must be listed in their Market to work with HC 3.2 (API 13) and not all developers have updated their app listings. You search for an app you purchased or used (FREE) and it's gone. If you select it from your PC, it tells you it's not going to work with your device. Nasty. More on this in a future post. Thanks boys @ Google.

Stubbed your toe on that one - eh? Apps that I just bought for $0.10 I can't use. ;>

No matter where I looked, I couldn't find an all-n-one article on how to do everything, so I thought I'd write something to at least give people the major points and in what order to do everything. I'll say things may not be perfect in this document, I also didn't come up with any of the coding, although I'm a developer.

I want to honor others work by writing this, not attempting to make people think I did anything other than document the process.

Getting started:

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Download Moto drivers

http://xdaforums.com/showpost.php?p=17247255&postcount=18

Files #2, or #3 depending on your Windows OS

I used: "Motorola_End_User_Driver_Installation_5.2.0_64bit.msi"

Download Android SDK

(be sure to install tools + platform tools) usually the top two checkboxes

http://developer.android.com/sdk/index.html

I used "installer_r15-windows.exe"

*I believe you will also need to get the Java SDK as well*

I used "jdk-7u1-windows-x64.exe"

Simply put, you have to have ADB working (either add the path to this file to your path environment variable) *in my case* c:\program Files (x86)\Android\android-sdk\platform-tools and then you must ALSO have a copy of Fastboot.exe

***I found that Google has removed Fastboot.exe from their Android SDK without telling anyone some time ago (but recently enough that most don't know this has happened).

Ironically, by using Google.com I was able to find others very recently complaining of this very issue and posting this single file required. I'll let you go find it. Hint: google "fastboot.exe missing" might be helpful

So, boot into your stock Honeycomb 3.1

Make sure "USB debugging" is enabled under "settings | applications | development" and plug in your USB cable to your computer. Hopefully all device drivers are sorted out. If you did everything correct, you can now open a command prompt and type

adb devices

(and you should hopefully see your device attached)

First thing first, you must unlock the device:

==============================================

adb reboot bootloader
fastboot oem unlock

(Now, follow the instructions on DEVICE screen to unlock your device)

If it doesn't reboot on it's own, you can issue this from the PC

================================================================

fastboot reboot

Next, you have to flash CWM recovery

*thread/file can be found http://xdaforums.com/showthread.php?t=1074979

====================================

adb reboot bootloader
fastboot flash recovery recovery-solarnz-XXXXXX-XXXX.img
fastboot reboot

(Let your Xoom boot up)

Check out your brand new CWM recovery

=====================================

adb reboot recovery

*Several notes about recovery on the Xoom*

==========================================

If you press VOL_DOWN + POWER when booting, you get a prompt to select "fastboot", "recovery" or "something else"(I forget).

If you select "fastboot", to get out of fastboot (when finished with whatever you are doing), press VOL_UP + POWER until the Xoom reboots.

Also, when powering up the Xoom, right after you see the "dual core" screen, (within 3 sec) you can press VOL_DOWN and get these choices, to get to CWM recovery on your own, select VOL_DOWN until recovery is selected, then VOL_UP to select.

Once in CWN, select becomes "POWER" and VOL_DOWN and VOL_UP just run your menu up/down selections.

I always recommend selecting "Power down" when done with CWM recovery.

I just lost a 32GB microSD card by selecting reboot after not waiting long enough after a nandroid backup. Trust me, it's dead.

Once off, you can just use the normal power button to boot into the OS.

ALSO,

ELIMINATE confusion:

====================

*if you are running the Tiamat, it's pre-rooted, there is no need to root your OS*

==================================================================================

Next, flash the Awesome Tiamat Xoom Rom 2.2.2 - Moray

=====================================================

*thread http://xdaforums.com/showthread.php?t=1254933

*you will find the link to get the rom --you put it on your microSD card before

inserting it into your Xoom.

*I have found the Xoom to be a lame microSD reader.

I recommend ejecting the card, and putting it a reader to write these larger files.

1.(I had nothing to back up with Titanium backup)

2.Download the 2.2.2 rom zip file and place it on your external sdcard

3.Restart into Recovery

4.Perform a nandroid backup, and keep this safe! -

**consider using a different and smaller/less expensive 2G card for this,

then switch cards and insert the one with your rom .ZIP file.

Power off to eject/insert the cards. (See above comment about losing a 32GB card this way)

5.Perform a factory reset within recovery (Wipe data / factory reset)

This is only required if you're NOT upgrading from hammer head. - You aren't right?

6.Install the rom

7.Welcome to the party

Now,

It's time to work with AT&T 3G SIM

==================================

I took my SIM from my LTE Galaxy S II Skyrocket and inserted after flashing this ROM.

When it powered up, I was able to goto

1--Wireless & Networks

2--Mobile networks

3--Make sure "data enabled" checked

4--Make sure "data roaming" not checked

5--I left default APN for the ROM since I was "testing"

**this won't work once you have a new SIM on a tablet data only plan**

6--Make sure "Use only 2G networks" not checked

7--Enter network operators, (let it scan)

You should be able to see ATT, ATT microcell also listed as ATT

(if you have one) second, and possibly even T-Mobile.

Select ATT (the top choice) The device should say "registered".

If you goto "about tablet" then "status" you will see your MDN, Network AT&T,

signal strength, network type. Service State should be "in service" and

Mobile network state should be "connected". No worries about the IP address here. I believe this is WIFI only IP address and since you have WIFI off (right) it may be blank.

Your internet works, making sure WIFI is off and you should be rocking and rolling on the 3G AT&T network. (Assuming you live in a 3G area). Later on, you can experiment with setting "automatic" if you wish. I did.

Open the browser, do a speed test, etc.

Now, take the tablet into AT&T (to show them it's possible) --

They may not believe you if you don't since it's not their Device and IMEI....

Next, tell them you are interested in getting a "tablet only" data plan/SIM.

=============================================================================

Here is how we had to go about it in my area.

1--We had to begin with an IMEI from a tablet in the AT&T store (gasp).

*if you try to add the IMEI to the new SIM from your European Xoom, no sale*

2--Once AT&T rep creates the additional line and gets the number (MDN)...

They can then immediately change the IMEI to YOUR IMEA off YOUR Xoom.

3--The rate plan we used was "TAB3GBNS" which is 2GB/mo for $25/mo

4--We used a LTE capable SIM that AT&T is deploying now, not an older 3G SIM

IMPORTANT:

==========

5--When you eject the "test" SIM, and put your brand new shiny SIM for the Xoom into it...

you will have to change APN settings (yes, they ARE different if you are on a tablet only plan)...

a-wireless & networks

b-Mobile networks

c-Access Point Names

d-Click on the defined APN (if one was there) -- I had one by default named "Cingular 410".

1-Name I left alone "Cingular 410"

3-APN "broadband"

4-Proxy <not set>

5-Port <not set>

6-username <not set>

7-password <not set>

8-Server <not set>

9-MMSC <not set>

10-MMS proxy <not set>

11-MMS port <not set>

12-MCC	310

13-MNC	410

14-Authentication type <not set>

15-APN type	"default"

16-APN protocol	"IPv4"

e-just use the back button in the Honeycomb UI to save and exit.

f-you may want to go in there and double check everything.

g-Again, (as per above)

1--Wireless & Networks

2--Mobile networks

3--Make sure "data enabled" checked

4--Make sure "data roaming" not checked

5--Make sure "Use only 2G networks" not checked

6--Enter network operators, (let it scan)

You should be able to see ATT, ATT microcell also

listed as ATT (if you have one) second, and possibly

even T-Mobile. Select ATT (the top choice)

The device should say "registered".

7-If you goto "about tablet" then "status" you will

see your MDN, Network AT&T, signal strength,

network type. Service State should be "in service"

and Mobile network state should be "connected".

No worries about the IP address here.

I believe this is WIFI only IP address and since

you have WIFI off (right) it may be blank.

Your internet works, making sure WIFI is off and you should be rocking and rolling on the 3G AT&T network. (Assuming you live in a 3G area). Later on, you can experiment with setting "automatic" if you wish. I did.

Open the browser, do a speed test, etc.

5--Hopefully that is enough to take you through the high level

aspects of taking a refurbished European GSM MZ601 model, and having a

awesome 32Gig 3G (not 4G) tablet for about $400.

Enjoy, and please thank me if you found this useful.

I have been around for over 5 years, but have a low rating as I don't post much.