5,594,805 Members 37,696 Now Online
XDA Developers Android and Mobile Development Forum

[Q] Boot Loop After Flash

Tip us?
 
necromonger89
Old
#1  
Member - OP
Thanks Meter 2
Posts: 78
Join Date: Dec 2010
Exclamation [Q] Boot Loop After Flash

When I got my G tablet yesterday and rooted/flashed to 2.2 Lite, I did it using my G1's SD, but since then I backed up my SD to what I had it on my G1. My question is, can the G tablet naturally boot from an SD card(micro) as long as its named update.zip? I mean so I can do the flash again or is it perma bricked? If it is perma bricked, should I return it to store and start all over with a dedicated SD card?

Thanks!
 
dsf767
Old
(Last edited by dsf767; 9th December 2010 at 10:15 PM.)
#2  
Senior Member
Thanks Meter 15
Posts: 388
Join Date: Oct 2007
Location: Marshfield, MA
Quote:
Originally Posted by necromonger89 View Post
When I got my G tablet yesterday and rooted/flashed to 2.2 Lite, I did it using my G1's SD, but since then I backed up my SD to what I had it on my G1. My question is, can the G tablet naturally boot from an SD card(micro) as long as its named update.zip? I mean so I can do the flash again or is it perma bricked? If it is perma bricked, should I return it to store and start all over with a dedicated SD card?

Thanks!
Necro,

This tablet is 99% unbrickable (I would say 100% because I haven't head of one bricked yet but nothing is impossible). you just need to boot into APX mode and reflash stock firmware

how to get into APX mode can be found here

http://wiki.tegratab.com/index.php/Nvflash_FAQ

you are going to need to download the complete NVflash restore file

which can be found here: http://forum.tegratab.com/viewtopic.php?f=13&t=18
 
necromonger89
Old
(Last edited by necromonger89; 9th December 2010 at 11:52 PM.)
#3  
Member - OP
Thanks Meter 2
Posts: 78
Join Date: Dec 2010
Quote:
Originally Posted by dsf767 View Post
Necro,

This tablet is 99% unbrickable (I would say 100% because I haven't head of one bricked yet but nothing is impossible). you just need to boot into APX mode and reflash stock firmware

how to get into APX mode can be found here

http://wiki.tegratab.com/index.php/Nvflash_FAQ

you are going to need to download the complete NVflash restore file

which can be found here: http://forum.tegratab.com/viewtopic.php?f=13&t=18
The download link for the SDK is broken or old. Is there another place I can download it. Stupid google keeps bringing me the PDFs for Nvidia. Nevermind about the SDK, found it on their site. What about the original ROM/IMG? That link is also broken.

Is there a better guide. I'm getting a headache from all the files the SDK dumped onto my computer. Can someone show me a noob proof version of how to do this?

I only undertand the APX mode on the G Tablet. Other than that I cannot get windows to recognize the device even after installing the SDK. Where are the drivers for the APX?
 
tompc
Old
#4  
Junior Member
Thanks Meter 0
Posts: 14
Join Date: Sep 2008
There are instructions on the main post for TNT-Lite for what to do if you get into the boot loop. I ended up having to get to the step where I repartitioned the internal flash and re imaged.
 
rushless
Old
#5  
Senior Member
Thanks Meter 215
Posts: 2,717
Join Date: Jan 2008
You can avoid the SDK and driver issues and only use the computer to put some files on the SD card:

Easiest way to fix for me was (I had same issue problem with 2.0):

1. Download "Clockwork .8" (links at XDA)
2. Unzip the recovery file and update.zip to root of a micro sd
3. Change the recovery folder's command file to "microsd2" & save it
4. Put the card in the Gtablet
6. Interrupt the boot loop by pressing power and volume up at same time
7. Clockwork should install
8. Power down and restart the G tablet
9. Download TnT Lite 2.20
10. Repeat 2 and 3, but this time extract the update.zip file from TnT 2.20 and copy over the update.zip already in the root directory. YOU WILL NOT NEED A RECOVERY FILE FOR THIS METHOD.
11. Delete the recovery file in the root directory
12. Power down
13. Restart by pressing power and volume up
14. Should be in Clockwork
15. You want to clear both cache and data (two options on main screen)
16. After clearing both, choose install update.zip.
17. The next screen will show the update.zip. Go to its row and choose it by pressing home button

You should auto reboot and be set. You can then install the Folio Flash apk and install Titanium so you can do the market fix.

This is process is what saved me, at least.
 
necromonger89
Old
#6  
Member - OP
Thanks Meter 2
Posts: 78
Join Date: Dec 2010
Quote:
Originally Posted by rushless View Post
You can avoid the SDK and driver issues and only use the computer to put some files on the SD card:

Easiest way to fix for me was (I had same issue problem with 2.0):

1. Download "Clockwork .8" (links at XDA)
2. Unzip the recovery file and update.zip to root of a micro sd
3. Change the recovery folder's command file to "microsd2" & save it
4. Put the card in the Gtablet
6. Interrupt the boot loop by pressing power and volume up at same time
7. Clockwork should install
8. Power down and restart the G tablet
9. Download TnT Lite 2.20
10. Repeat 2 and 3, but this time extract the update.zip file from TnT 2.20 and copy over the update.zip already in the root directory. YOU WILL NOT NEED A RECOVERY FILE FOR THIS METHOD.
11. Delete the recovery file in the root directory
12. Power down
13. Restart by pressing power and volume up
14. Should be in Clockwork
15. You want to clear both cache and data (two options on main screen)
16. After clearing both, choose install update.zip.
17. The next screen will show the update.zip. Go to its row and choose it by pressing home button

You should auto reboot and be set. You can then install the Folio Flash apk and install Titanium so you can do the market fix.

This is process is what saved me, at least.
Did not work... I might go and return it tomorrow. I even tried flashing to original firmware and nothing.
 
zalmann
Old
(Last edited by zalmann; 11th December 2010 at 03:30 PM.)
#7  
Junior Member
Thanks Meter 0
Posts: 18
Join Date: Dec 2010
I got stuck in an unrecoverable boot loop as well. I tried to install TNT Lite 2.2, got a boot loop.

Tried to install TNT Lite 2.2, 2.2.1, 2.3 from microsd (yes changed the line to SDCARD2), always got the giant exclamation mark.

Tried to install the vanilla restore and stock TNT from here http://forum.xda-developers.com/show...14&postcount=7 still exclamation mark.

Tried to install Clockwork Mod, still exclamation mark.

EDIT: Finally got out of my bootloop by flashing the ViewSonic G-Tablet Restore file from DroidPirate

http://www.droidpirate.com/download/click.php?id=1777
http://droidpirate.com/category/able...sonic-gtablet/

Its the only one that worked.

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


XDA PORTAL POSTS

Get the AOSP Lock Screen on Your ICS-Powered Samsung Device

Android is the only popular mobile operating system that allows users, … more

Motorola Droid RAZR HD and M to Receive KitKat in a “Few More Weeks”

Verizon and Motorola shocked us all back in November when … more

[APK] YouTube Update to 5.6 Now Lets You Cast Live Video to Your Chromecast

Earlier today, we talked about how Google brought two new apps to … more

[OTA Captured] Android 4.4.2 Now Rolling Out to the AT&T Galaxy S 4 Active

A little under two months ago, AT&T started rolling out … more