[solved] Flash CWM despite green android bot in recovery?

[Landorin]

Hello,

I updated my UK Xoom 3G (MZ601) via OTA to 3.2 (H.6.5-17-3) last year.
Since I got interested in rooting the device I read I have to install CWM first.
However, when going into recovery mode (for testing) all I get is a green android bot.

Thanks to some googling I found some website that mentions to hold the power button (while the green android bot is shown) and press volume up, then release the power key. Now I see the stock 3e recovery menu.

Is it safe to simply unlock the bootloader and flash CWM via ADB? Or am I required to flash back to the xoom dev stock rom because of the green fella? My question refers to this part:

Or, if you do not already have root on your xoom when you get the green bot of ! then you have to do the following with the stock moto files for your device (from moto dev).

(This Wipes your Xoom )

fastboot oem unlock
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot -w
fastboot reboot

Not sure why I would have to do that? In the end, I'd want to have a rooted stock 3.2.

 

[adelancker]

First unlock it indeed while seeing the green bot in recovery.

(using the commands you posted yourself)

Then, you back into recovery, and push the new cwm recovery using adb

(look on the xda xoom's section: you'll find the right tutorial; should start with downloading adb, downloading cwm into the same directory as where you put the adb drivers for the xoom. Then open command as administrator, etc.)

After that, you should have CWM (or I recommend the touch Rogue recovery! ) on your Xoom, instead of the ugly little green bot, now allowing you to flash many, many ROMs, zips and many other to your device!

Enjoy. Hope this is clear enough and helps you towards the right direction! (if so, please do thank me, since I only just made an XDA account and would like at least one thanked post lol.
If not, please PM me or ask further explanations in this thread! )

 

[Landorin]

First unlock it indeed while seeing the green bot in recovery.

(using the commands you posted yourself)

I suppose you only refer to the adb commands without flashing the img files, right?
I still don't know why that other thread suggested to flash back to an older version first (see quote in my first posting)? Can anyone tell me if I have to downgrade at all?

 

[adelancker]

I suppose you only refer to the adb commands without flashing the img files, right?
I still don't know why that other thread suggested to flash back to an older version first (see quote in my first posting)? Can anyone tell me if I have to downgrade at all?

First unlock it using those fastboot commands you posted. You should in this series of commands not flash anything yet. Just unlock it first. When rebooting and showing the Moto logo:
Get back into recovery and then push the new recovery.img using adb commands

As far as I know, there is not one reason to downgrade. Should work just fine.

---------- Post added at 01:23 PM ---------- Previous post was at 01:05 PM ----------

First unlock it using those fastboot commands you posted. You should in this series of commands not flash anything yet. Just unlock it first. When rebooting and showing the Moto logo:
Get back into recovery and then push the new recovery.img using adb commands

As far as I know, there is not one reason to downgrade. Should work just fine.

Otherwise, use this as your guideline and you should be fine:

http://forum.xda-developers.com/showthread.php?t=1249798

 

[Landorin]

Thank you! All worked out fine. I followed the guide step by step, I did not downgrade the existing ROM.

In case someone else gets into the same situation and wonders how to do it:
once everything is set up for ADB and the device is found (command adb devices) type this in your command prompt window:

adb reboot bootloader

waited for fastboot protocol text to show up on Xoom device, then:

fastboot oem unlock

Confirmed the warning. Then had the device booting up normally to re-enable USB debugging. Then continued:

adb reboot bootloader

again waited for fastboot protocol text to show up on Xoom device, then:

fastboot flash recovery recovery-Tiamat-R4c-100611-1150-cwm.img

When it said flashing done I restarted the Xoom (holding power button + volume up). About 3-4 sec after seeing the Motorola pic I hit volume down ("android recovery" is displayed), then volume up and CWM showed up.


Since I was already in CWM I also applied the universal root method ("install zip from sdcard" -> "choose zip from sdcard", then selected the actual file on the sd card, installed it, rebooted). Root works.


P.S.: just realized silly me forgot to do a nanddump before rooting.

 

[adelancker]

something like forgetting a nanddump only happens once!


Glad to see it worked for you!
Even happier to see you didn't need to downgrade.

Once you flash a custom ROM, you'll have 3G and ICS!
I did the same a couple of months ago, and my device felt brand new!