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[GUIDE] To installing ClockWorkMod (CWM) on the G-Tablet - [GTABLET/ZPAD T2]


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#1 butchconner

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Posted 15 April 2011 - 11:41 AM

GUIDE to Installing ClockWorkMod (CWM) on the G-Tablet

Note: I apologize that this is so long, but I argued with myself that three
separate posts would be harder to track down for users who need the info. Also,
I don't apologize for writing in a way that I hope anyone can follow and
understand. Please let me know of needed corrections or additions
.



ClockWorkMod (CWM) is a valuable tool for loading software, installing ROMs and
troubleshooting on your G-Tablet.

Please note that for the purposes of this guide, ClockWorkMod (CWM) is referring
to "v.8" or what sometimes is called legacy CWM. Do NOT use newer versions or
Rom Manager with the G-Tablet as these will cause problems and varying results.

Also do NOT use CWM (any version) on the new 1.2.4349 update until the gurus sort
out the new software as it will semi-brick your tablet
.

The G-Tablet uses a recovery process to work. When you install CWM, you are replacing
that recovery software which means you will not be able to do OTA (over the air) updates
any longer. Also, installing updates manually or installing other ROMs most of the time
will overwrite your CWM and return you to stock recovery.


Be warned: CWM is for advanced users.

Credit for this tool should go to Bekit, to Koush for the custom recovery to start with, and
Roebeet for packaging the update.zip.


Download CWM v.8: http://www.mediafire...dvleg4oatkfxm7w


Installing ClockWorkMod via Internal Memory ( /sdcard)

To install CWM via Internal Memory, you will need to use the USB cable that came with your
G-Tablet to connect to your PC. In Windows, when you connect the connection will be listed
on the USB/Green Check icon on your Task Bar in the lower right corner of your screen. It
will say "Eject Nvidia Harmony" -- and a Window Explorer Box will appear on your screen. Choose
"Open Folder to View Files."

When Explorer folder opens you will see a listing for "Removable Disk" (on my computer it is G:"
The disk is the internal memory of your tablet known as folder /sdcard.

Follow these steps:

1. Go to the download of CWM from earlier and unpack it so you have a recovery folder with
command file in it and an update.zip file.
2. Copy the folder and file to the tablet disk (/sdcard folder). Then disconnect the USB
cable properly (eject Nvidia Harmony) and shut down the tablet.
3. Boot into recovery on the tablet by holding down the power/volume + buttons together until
you see the "Recovery Key" message in the upper left corner of your screen.
4. You should see a box and progress bar appear while the software is installing.
5. CWM should start and you will see a green menu with ClockWorkMod at the top.


Installing ClockWorkMod (CWM) via MicroSD Card/External Slot


CWM also can be installed using a microSD card and the extenal slot on your G-Tablet.

When the G-Tablet boots into recovery, it checks the internal memory first to
see if a recovery folder with a command file in it exists. If so, it uses it. If not,
then it searches /SDCARD2 (the microSD external card) to see if it is there and
if it has a recovery folder and update.zip on it.

The key to using a microSD in recovery in the external slot is that the command
file has to point to the /SDCARD2 location. You have to use an editor like
Notepad to go into the command file in the recovery folder and edit the
command line to change /SDCARD to /SDCARD2. Works well, but be sure when
you save to keep the file name as "command" (without the parentheses, of course).
And make sure your editor doesn't add a suffix like .txt to it either.

To Make the CWM MiniSD:

1. Download a copy of ClockWorkMod v.8 to your PC.

2. Put you microSD into your PC or depending on what kind of reader/card you
have put it in the carrier/adapter and plug it into your PC.

3. If the download of CWM you have requires it, extract the files so that you
have a recovery folder and an update.zip file.

4. Copy the two files into the root directory of the microSD card.

5. Go into the recovery folder and edit the command file command line to read:

--update_package=SDCARD2:/update.zip

Then save the file making sure the name remains "command".

8. The CWM microSD card will work unless something has messed
up your recovery partition -- so many times you can use it without having to
NVFlash back to stock. Or you can use it to reload CWM after changing a ROM.


NVFlash Procedure to Load ClockWordMod (CWM)

Following is the NVFlash procedure for installing ClockWorkMod (CWM) for those
people who are having boot loop problems (or other problems) and need
to install CWM by flashing rather than by using /sdcard or a microSD card
via /sdcard2

1. You need to get a copy of ClockWorkMod v.8

2. Once you have extracted the CWM files, go to your NVFlash directory (or whatever
you call it) and make sure you have the right files in it.

-- Nvflash.exe and related files (nvflash_gtablet_2010110500.zip) from
the original NVFlash Recovery thread.

http://forum.xda-dev...ad.php?t=861950

-- USB drivers (also from NVFlash Recovery thread. If you already are
flashing via APX you should have them installed.)
-- The file "nvflash_gtablet.bat" from the NVFlash Recovery thread.
-- The CWM .img file (next item will tell you how to get it.)

3. Next you will need to extract the CWM .img file from the .zip file you
downloaded. First, extract the files from the download -- you should get
a recovery folder and an update.zip. Now unzip the update.zip file and
you will get a file named recovery.img.

4. Rename the file "recovery.img" to "part9.img".

5. Now edit the file "nvflash_gtablet.bat to make the command line read:

"nvflash.exe" --bl bootloader.bin --download 9 part9.img

The command line above for the .bat file does require the quotes around
nvflash.exe!!!

Or you can simply leave the other .bat file alone and create a new
nvflash_cwm.bat file and put the cwm command line in it if you want to.

6. Boot your tablet into APX mode using power/volume - (you will have a black
screen). Connect the USB cable from your G-Tablet to your PC. If you check
the little USB/green check icon on the PC toolbar (bottom right corner of screen)
you see an APX connection listed.

7. Go to the NVFlash subdirectory on your PC and run the .bat file to load CWM.

8. When the flash is done, use the USB/Green Check icon to disconnect from
the PC and then disconnect from the G-Tablet.

9. Shut down and the boot the G-Tablet into Recovery Mode by pressing
Power/Volume + and hopefully you will see the word "Android" and then the
green CWM menu will appear."

Now you're ready to do whatever you need to do with CWM.

Edited by butchconner, 15 April 2011 - 11:50 AM.

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#2 Dave.S

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Posted 15 April 2011 - 05:26 PM

Hello Rev,

Everything was fine after updating 1.2.4349, until it messed up when I was trying someone's market fix. Boot recovery did not work.
Nvflash'ed again. Got updated to 1.1.3588. But it won't OTA to 1.2.4349, Got this message:

Congratulations? Your system is u-to-date. More information about the current version is shown below.
Current version: Flextronics/harmony/harmony/:2.2/FRF91/hudson-20110118-TnT_SVN_3599:user/test-keys

In the System Settings/About tablet:
Tap UI 1.1.3588, Kernel: 2.6.32.9-00000-10.8.2-dirty. hudson@tapntapsvn #16

Since boot recovery did not work, I used your method to nvflash cwm.09. Thanks.
I am able to boot to cwm, in hope that I would do factory reset and start over again. But I got this error when trying to do dalvik cache:

E: Can't mount /dev/block/mmcblk0p2 (File exists)

I think that this is the problem. Do you have a suggestion to try?

#3 butchconner

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Posted 15 April 2011 - 06:06 PM

Dave,

You probably will be relieved to know that I have heard that the
VS OTA 1.2.4349 has been pulled -- is not being served up --
whatever you call it.

So right now 3588 is as far as you can go.

if I hear otherwise I will post a change in status.

Now that you are relieved, enjoy doing something fun for a while!

RevBC

Edited by butchconner, 15 April 2011 - 06:07 PM.


#4 Dave.S

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Posted 15 April 2011 - 06:31 PM

Rev,
What about this error when trying to do dalvik cache:

E: Can't mount /dev/block/mmcblk0p2 (File exists)

Haven't you seen it somewhere.

Searching the net all over, I found this, but not sure:

"To fix this, you must be in clockwork recovery.
First, unmount cache from partitions menu.
Then, mount system from the same menu.
adb shell
system/bin/e2fsck -p /dev/block/mmcblk0p2
exit
Reboot your device and redownload clockwork with rom manager."


The instruction did not seem to be complete, i.e. between mount system and adb.

Thanks

#5 butchconner

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Posted 15 April 2011 - 07:06 PM

Dave,

I've seen two explanations for it:

1. It has something to do with not having
a microSD card in the external slot.

2. It has something to do with the fact
that G-Tablets only have 512 ram vs. 1024 ram
and the software hasn't been corrected for
the small ram size.

I don't know a definitive answer. But I have
ignored it on both my G-Tablets for five months
now without any noticeable problem.

I'd say "Forget it!"

Rev

#6 kozmo2k4

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Posted 15 April 2011 - 07:22 PM

Rev,

E: Can't mount /dev/block/mmcblk0p2 (File exists

"To fix this, you must be in clockwork recovery.
First, unmount cache from partitions menu.
Then, mount system from the same menu.
adb shell
system/bin/e2fsck -p /dev/block/mmcblk0p2
exit
Reboot your device and redownload clockwork with rom manager."


The instruction did not seem to be complete, i.e. between mount system and adb.

Thanks

ROM Manager is a great app, but it does not play nice with the gTablets; I soft-bricked my gTab twice using it, before I realized that.

Sent from my gTablet-TnT-Lite-4.4.0 using TapatalkPro

Epic 4G Touch: Stock rooted GB27
TF300T: CM11 /XBMC 13-ß2
NOOK Color: CM11 on µSD
Samsung Moment: SDX-Froyo-2.2.2 or CM7.2 (tester only)
G-Box Midnight: j1nx Linux with XBMC 12
MK808: Finless 1.7c (Omegamoon 720p Kernel) XBMC 13-ß2


#7 butchconner

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Posted 15 April 2011 - 08:17 PM

kozmo2k4,

I agree with you. I have never used Rom Manager, but I have
heard this same report from a number of folks.

ClockWorkMod v.8, however, is really great for trouble-shooting
and repair on the 1.1 version roms on the G-Tablet. You just
have to know how to use it (that's what this thread is all
about.)

But CWM and 1.2.4349 is a no-no. I've heard of a person or
two ignoring this advice and I'm worried for them.

RevBC

#8 kozmo2k4

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Posted 16 April 2011 - 08:49 AM

kozmo2k4,

I agree with you. I have never used Rom Manager, but I have
heard this same report from a number of folks.

ClockWorkMod v.8, however, is really great for trouble-shooting
and repair on the 1.1 version roms on the G-Tablet. You just
have to know how to use it (that's what this thread is all
about.)

But CWM and 1.2.4349 is a no-no. I've heard of a person or
two ignoring this advice and I'm worried for them.

RevBC


Hope with the move to 1.2-series ROM's we'll see an update to the CWM recovery.
The "new" stock recovery is better than the old one, a couple more options; but missing "backup", "format" and quite a few other options.
P.S.:Good to see in our "new" home, RevBC!

Epic 4G Touch: Stock rooted GB27
TF300T: CM11 /XBMC 13-ß2
NOOK Color: CM11 on µSD
Samsung Moment: SDX-Froyo-2.2.2 or CM7.2 (tester only)
G-Box Midnight: j1nx Linux with XBMC 12
MK808: Finless 1.7c (Omegamoon 720p Kernel) XBMC 13-ß2


#9 BigD103

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Posted 25 May 2011 - 11:30 AM

Thanks so much for the instructions. I'm having an issue though. I downloaded the clockworkmod and extracted the recovery folder and the update.zip to the root of my internal SD card. I rebooted holding down power and vol+. Loaded the recovery. Chose to install internal revovery update.zip. At this point the screen went black showing a white wrench and screwdriver in the middle of the screen. I left it that way for almost 2 hours. As nothing had progressed I rebooted the device. I can boot normally into the stock rom but everytime I try to boot into recovery the ViewSonic splash screen loads and I get the Recovery Key Detected, Booting recovery kernal image and the device just stalls there. I must have done some wrong and currpted the recovery. Anyone have any ideas on fixing the issue so I can get CWM recovery on there?

Thank You in Advance.

-BigD

#10 helixro

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Posted 07 June 2011 - 12:10 PM

Now that it's too late, I find out that ROM manager messed with my ability to use CWM to try other mods. I did install VeganTab but I am apparently married to it until i figure out how to boot into CWM. What changed?
I used plain CWM the first mod i tried and then used ROM manager because it was recommended on the cyanogen site. Now the mother won't boot into recovery.
I ordered a miniSD card, hoping it may boot from SD2, but I'm afraid I'll have to use NVflash and it scares me.
I like how the tablet functions with veganTab but I hate that jiggery boot up screen.

Am I on the right track vis a vis SD2 and/or NVFlash?

grannygeek2

#11 TTfool78

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Posted 10 June 2011 - 09:05 PM

Hi All,

I am having trouble loading ClockWorkMod... I have tried it both ways. Server times each way. 1st by copying from PC to internal SD card. Placing the recovery folder and update.zip in the root. When that did not work I tried the external Micro SD card. I verified that I had the right version by making sure the command file contains "--update_package=SDCARD2:/update.zip" ..

What I get when I press the + and power is the following message:

"Recovery key detected"

"Booting recovery kernel image"


(The viewSonic Birds)


*** and it stays there ** forever or until I press the power button **

I just got this Tablet today. New. Ver. 1.2-4349,

Please give me some advice.


Thanks,


TT

#12 dvinnen

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Posted 14 June 2011 - 07:50 PM

*** and it stays there ** forever or until I press the power button **

I just got this Tablet today. New. Ver. 1.2-4349,

I was having the same problem till I saw the bold warning in the op. NVFlashing back to 4349 lets me get back to recovery and fixed everything

Edited by dvinnen, 14 June 2011 - 07:51 PM.


#13 qpig3388

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Posted 03 July 2011 - 05:43 PM

Thanks for the great info,will try it asap! :yahoo:

#14 Stratula

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Posted 04 July 2011 - 06:33 PM

BC,

Thanks for the great instructions. Even for a newcomer like moi, I followed your instructions and was able to successfully install CWM on my gTab. Now the world is my proverbial oyster. On to bigger and better things. I feel like I've just given my gTab a new life...and definitely the opportunity to shine via either the more true Froyo image, or on to Gingerbread. Naturally, I'm all in for Gingerbread. Can't wait to see how this all works out. Man, this is too cool!

Muchos Gracias vom Der Vaterland mon Ami. ;o)

#15 vvtech

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Posted 16 July 2011 - 11:08 PM

I have the same problem as newbie and have tried to make clockworkmod work but What I get when I press the + and power is the following message:

"Recovery key detected"

"Booting recovery kernel image"


(The viewSonic Birds)


*** and it stays there ** forever or until I press the power button **

I just got this Tablet today. New. Ver. 1.2-4349,

Can you pls help. Many thanks

#16 tlb1961

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Posted 17 July 2011 - 10:03 AM

I have the same problem as newbie and have tried to make clockworkmod work but What I get when I press the + and power is the following message:

"Recovery key detected"

"Booting recovery kernel image"


(The viewSonic Birds)


*** and it stays there ** forever or until I press the power button **

I just got this Tablet today. New. Ver. 1.2-4349,

Can you pls help. Many thanks


This page should help you out. http://viewsonic-gta...mmies.webs.com/
  • SilicicAcid likes this
_______________________________________________________

Viewsonic gTablet - Currently running TeamDRH
JB Alpha 5.2 (4.1.1)
Samsung Galaxy S II E4GT - Stock ROM rooted.

Please show your support for the developers who are relentlessly working to bring the latest firmware to the GTab. JellyBean ain't too shabby if you ask me. :-)

TeamDRH
Team Flashback

#17 SilicicAcid

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Posted 17 July 2011 - 06:02 PM

This page should help you out. http://viewsonic-gta...mmies.webs.com/


I have NVflashed a number of times with 3588 and no problems.. I wanted to look at 1.2 (bought tabs for my nephews from woot, I wanted to be able to help them). NVflash went fine but on the gtab-for-dummies site it says that when booting into cwm there should be an "advanced" option. I don't see it - tried back key and no go, not sure how to get into advanced mode so I can access the "mounts/storage" option to flash the ROM (ginger)....

Any info would be greatly appeciated...

#18 SilicicAcid

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Posted 17 July 2011 - 06:05 PM

update - while typing the last post I tried using the external SD option for cwm - now I have an advanced option! The cwm included in Roebeet's 1.2 nvflash doesn't seem to have the advanced option... or maybe I screwed up the download...

but got it now!

#19 donl

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Posted 27 July 2011 - 10:27 PM

I have the same problem as newbie and have tried to make clockworkmod work but What I get when I press the + and power is the following message:

"Recovery key detected"

"Booting recovery kernel image"


(The viewSonic Birds)


*** and it stays there ** forever or until I press the power button **

I just got this Tablet today. New. Ver. 1.2-4349,

Can you pls help. Many thanks


Did you ever get this resolved, mine is doing the same?

#20 tlb1961

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Posted 27 July 2011 - 10:58 PM

Did you ever get this resolved, mine is doing the same?


Have you been to this site? It will get you out of brick condition.

http://viewsonic-gta...mmies.webs.com/
_______________________________________________________

Viewsonic gTablet - Currently running TeamDRH
JB Alpha 5.2 (4.1.1)
Samsung Galaxy S II E4GT - Stock ROM rooted.

Please show your support for the developers who are relentlessly working to bring the latest firmware to the GTab. JellyBean ain't too shabby if you ask me. :-)

TeamDRH
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