Hey everybody. I am sure this issue has happened before and there is probably a current post about this exact problem but I wasn't able to find anything. I attempted to install ClockworkMod and something happened. I hit a wrong button or something. Now whenever I try to boot into cwm the boot screen just hangs there and booting recovery kernel image is the only thing that displays with the dumb parrots.
Any ideas what I should do? Thanks in advance!
If you cannot get to CWM by hitting the power AND + button, then I suspect your next step will be to try the NVflash method as described on GoodIntentions (his username) site called "G Tablet for Dummies". Google it and it's one of the first (if not first) results.
It might look intimidating at first (at least for me), but following it step by step turns out to be pretty easy.
joseph.fox said:
It might look intimidating at first (at least for me), but following it step by step turns out to be pretty easy.
Click to expand...
Click to collapse
It was actually super easy to do and it fixed the issue. The issue was bootloader 1.2 after I did some research, I figured out that my G-tab (after getting RMA'd) came back with the newest TnT and that's what the issue was. Thanks a ton for the info and I appreciate the response!
Sorry I was in a similar issue but was not reading properly. My bad
Related
Everything was great.. did the update rebooted gtab worked great. Has always been stock. I shut it down and when I got home from work i hit the power button and I get the viewsonic birds then the tap n tap logo then the n just stays there and that is it has been stuck on the n for hours. I turn it off and back on and the same thing. Any advice would be appreciated.
Thank you
Have the same problem on stock Gtab.Mine gets to the birds and sticks.Tried holding power and volume up at the same time, but won't reset.Can't discharge the battery because it still goes into sleep mode after 10 min.Computer won't read when plugged into USB.Bought on Woot so a return will be a major p.i.t.a. I am new to Android devices
and was just getting enough balls to try rooting and flashing!!! FML
Yea bought mine from woot also... I liked the stock rom was also afraid to try to load a new rom. Looks like I will be sending it back
hvideo1 and sepder,
You have a choice to make. What both of you have is called a "boot loop".
Sometimes they happen because somebody does something wrong -- and
sometimes like in your case they just seem to happen.
You can return them if that is your desire -- or you can try to fix them.
Usually if one partitions the tablet and cleans it up, it can be fixed. But
that means you have to do some quick learning.
First, you have to get back to a fully stock, hopefully working version. Look
at the following procedure -- which we wrote hoping everyone would be able
to understand and use:
http://forum.xda-developers.com/showthread.php?t=861950
If you complete this procedure and the reflashed stock version works, then
we can load a program called CWM and do the partitioning and cleaning. If
the boot loops persist, then a second choice is to nvflash CWM and use it
to partition/clean up.
http://forum.xda-developers.com/showthread.php?t=865245
http://forum.xda-developers.com/showthread.php?t=1030042
The threads above give you more info on the various procedures.
Post back here what you decide to do or if you have questions.
Rev
I would try a simple data wipe first. Much easier and less invasive.
http://forum.xda-developers.com/showthread.php?t=1030915
Thanks for the replies. I don't want to send my gtab back so I'm reading both post and going to see what happens. I will reply back (hopefully with the gtab) Thanks again
I'm in the same boat as hvideo1 and sepde
Already tried the nvFlash first method mentioned by butchconner but can't get past the "Booting recovery kernel image" message, just sits there on the viewsonic splash.
Going to read and try the "CWM and do the partitioning and cleaning" next.
Appreciate everyone's help!
lrgche,
To NVFlash, you have to press Power/Volume - to activate APX. It will usually come
up with the white screen and then turn black.
"Booting recovery kernel image" indicates you may be pressing Power/Volume + , which
starts up Recovery -- a different process.
Go back through the procedure again and double check that everything is right and
it should work.
Rev
K J Rad said:
I would try a simple data wipe first. Much easier and less invasive.
http://forum.xda-developers.com/showthread.php?t=1030915
Click to expand...
Click to collapse
This worked for me. Thank you back up and working. the only reason I didn't go the other way was because I didn't understand alot of reading and just confused me (not hard to do)
Lol. Thanks to both of u
hvideo1 said:
This worked for me. Thank you back up and working. the only reason I didn't go the other way was because I didn't understand alot of reading and just confused me (not hard to do)
Lol. Thanks to both of u
Click to expand...
Click to collapse
Glad to help. You should learn that other procedure if you plan on doing any serious modding in the future though. It may become necessary next time.
Hello, I just bought my G-tablet and I have severely screwed it over. First, I rooted it and installed CWM, (It went fine). Then I flashed Cyanogen 7, following their wiki full update instructions. It was running fine till I found out that for some reason, my computer nor the tablet even knew it had an SD (Computer found nothing, File explorer on tablet had nothing) coupled with the fact Gapps refused to install, I figured this would be solved in a wipe then another flash. Nothing was different. So I wiped again (seemed to have froze during) but the flash of Vegan 5.1 seemed to have went well... for now. However, trying to install Adobe Flash via the preinstalled android market, it wouldn't install. It kept saying download unsuccessful, for every single app I tried. (no it's not an network problem). Being the noob I am I started following random googled XDA threads on how to fix this. I partioned 4gig from my sd to see if that would fix the market problem. I got stuck in a bootloop so I was forced to reflash vegan. When I did, I found out that when I tried to install anything it said something along the lines of "Not enough space" knowing I had 13 gigs of memory leftover, I figured I'd try rebooting. Got stuck in bootloop. Then followed yet ANOTHER googled guide (droidpirate brick fix) and now I can't even access CWM. It just loads as IF it were going to CWM but then shows me a /!\ caution sign then instantly turns off. When I normally start it, it goes into bootloop. when I try to get to CWM (holding volume up, power) it goes to a useless flash that I presume just fails, then brings me back into the bootloop. As far as I see, I have no way of fixing this...
I know this is so much to read, so in a brief explanation.. I'm in a bootloop, cannot get into CWM (brings me to a failed flash then back into boot loop) and am in dire need of assistance Please help me
Go read the posts on nvflash and learn how to use it. It is your friend!!
IndyLateNite said:
Go read the posts on nvflash and learn how to use it. It is your friend!!
Click to expand...
Click to collapse
NvFlash is currently not working for me, I don't know exactly where I messed up but my computer already has the drivers to read the tablet. when I run the .bat, it doesn't seem to do anything.
Scratch that, got it to work. I didn't extract one of the folders entirely. But my tablet is still stuck in bootloop even after this? what now?
IndyLateNite said:
Go read the posts on nvflash and learn how to use it. It is your friend!!
Click to expand...
Click to collapse
Take this with a grain of salt, as I learned it is not 'always' your friend
Now it's just on the stock Viewsonic birds and Gtablet logo bootloop...
Even after I NvFlashed it... Still can't access CMW.
Any suggestions?
Nvm, I got it to what appears to be working. (and I just about jizzed all over my tab.) Thanks so much. Saved me a beating from my parents.
Update: Hallelujah, we have seen the birds!
Just for future reference to those of you who may be stuck in an "APX loop", where NVFlashing and even repartioning do not work for you. I tried many things, and only one thing worked.
Didn't work:
1) NVFlashing to anything
2) Repartioning or wiping
3) Wiping out all storage on the SD card
After doing many, many rinse and repeats on the above, the only thing that did work were these instructions:
imurg said:
Please check this thread
http://forum.xda-developers.com/showpost.php?p=11306979&postcount=92
Note that he is using the NVFLASH_46 and although is has been deprecated, it works like a charm:
1) NVFlash the g tab_46 (it works with 46 and doesn't with other)
2) Let it finish and boot up
3) Go to storage setting and unmount the sd card.
4) Run a format.
5) Go to security and do Restore to factory settings
6) As part of this it will reboot. When restarts you'll see the birds. Everything is back to normal.
Click to expand...
Click to collapse
Now, I don't know of too many cases like mine where APX was the only thing that was working and that no amount of CWM or NVFlashing could bring back whatever was wrong with the bootloader, but this method forced a recovery image restore and got me back to the point where I can now power down and reboot. And for that, I thank this fine community!
I think we need a better guide somewhere on... Stages of recovery. If this doesn't work, here's the next deeper level. (Example: Level 1, wipe data/cache and reflash the rom. Level 2: Repartition and fix permissions. Level 3: NVFlash for 1.1 or 1.2 back to stock. Level 4: run the steps I have listed above. Level 5: fixing the bootloader. Level 6: Remove the case cover and short the back.)
Anyways, thanks again guys. Hopefully someone else will search with the same issue I had and get fixed as I have.
try this (not a developer here) when it boots up use your computer to delete all the files on the sd card so it looks blank- not sure if it will fix your issue but if there is a file on there messing your reboot into cwm that should will get rid of it. let me know how it goes. (standard at your own risk disclaimer) i have done this before just to see what would happen and nvflash brought it back up.
Hey, thanks for the reply. The sdcard was already blanked out through my various steps, so that doesn't appear to be the problem. Same things happen.
Now, that's just the app data and such on the sdcard, so I am guessing if I was able to see/delete all the system files instead via USB and delete it that way, I'd see something else.
just to bee clear i would delete everything on there not just the system files- so when you go to the drive from your computer it shows nothing at all.
here are the steps i would take start to finish.
1 nvflash rom
2 connect to computer, mount usb, then highlight and delete all files on gtab.
3 nv flash again (preferably with a stock rom with cmw pre loaded
4 reboot and pray that this fixed it.
OP - What size is the nvflash file you are using? I have run into a similar issue before with the larger nvflash.exe (like 152kb). It should be 140KB.
Just something else to check.
So to clarify, when you nvflash the 3588 stock image, it will automatically reboot at the end of the nvflash_gtablet.bat batch file?
pugsby said:
Hey all. Little frustrated since I've tried most of the tricks and still have a soft-bricked device. Not sure how it happened originally, but one way or another, I have a bad bootloader and no access to CWM.
APX works. I can NVFlash 1.1 or 1.2-based Stock or otherwise roms, and they boot (once, and only once...) . I can get USB mount. I've tried them with and without CWM pre-installed and see no differences.
But as soon as I reboot or power off, it just returns to APX mode. It is only a black screen, however. No birds, no logo, no nothing. The only way to make it boot again is to NVFlash it again.
All the instructions say to enter CWM to re-partition or to wipe data. That's great, but I have no access to CWM. Pressing the buttons during bootup does nothing because the device never makes it that far through bootup. And the format utility doesn't wipe enough data to return this back to a truly blank device, because when I nvflash, my apps still show to be there and I want it back to a blank slate.
I've tried pressing the buttons directly after a NVFlash to enter CWM that way, but it just goes straight into the rom.
Others have suggested popping off the back of the case and grounding out things to reset that way, but I thought that was just if APX didn't work, but APX is the only thing that DOES work, so not sure if it applies. (Let me know if I'm wrong there)
More things to try?
Click to expand...
Click to collapse
With the tablet in APX mode and plugged into your computer...
1) Open a command shell
2) Navigate to your nvflash directory
3) type in the following command but DO NOT hit enter
nvflash --bl bootloader.bin --download 6 part6.img --go
4) Hold down the volume UP key on the tablet and press the enter key on your computer.
5) Continue to hold the volume UP key until the tablet starts the nvflash.
6) Release the volume up key and when the nvflash finishes it should boot into CWM
After you repartition, wipe data, clear cache, etc. it might still loop into APX. If it does you'll need to force it to install a new bootloader. I'll dig up a link to the procedure if you need it.
I'm interested to know what the hell you did to get to the apx bootloop in the first place. I've gone through great lengths to try to replicate people's problems. I've even purposely done things out of order, done things wrong, drop the gtab couple times, etc. and I've never run into this problem.
goodintentions said:
I'm interested to know what the hell you did to get to the apx bootloop in the first place. I've gone through great lengths to try to replicate people's problems. I've even purposely done things out of order, done things wrong, drop the gtab couple times, etc. and I've never run into this problem.
Click to expand...
Click to collapse
I've worked on quite a few of these and still can't replicate it on my own either. Most of them had flashed an incompatible version of ClockworkMod (usually with ROM Manager) and a few had tried to move from Cyanogen directly to a 1.2 based ROM. A very small minority of them had issues with their internal flash memory. No one consistent thread that ties them all together that I've found. One interesting point though... In every case it was easy to recreate the problem after the tablet had been "Fixed." All I had to do was nvflash with the same image that was traditionally used for returning the devices to stock (bekit 1105).
K J Rad said:
I've worked on quite a few of these and still can't replicate it on my own either. Most of them had flashed an incompatible version of ClockworkMod (usually with ROM Manager) and a few had tried to move from Cyanogen directly to a 1.2 based ROM. A very small minority of them had issues with their internal flash memory. No one consistent thread that ties them all together that I've found. One interesting point though... In every case it was easy to recreate the problem after the tablet had been "Fixed." All I had to do was nvflash with the same image that was traditionally used for returning the devices to stock (bekit 1105).
Click to expand...
Click to collapse
I'v tried rom manager, wrong cwm version, and wrong bootloader. And I still can't replicate this apx bootloop thing. And I have 2 gtabs to work with. A 3rd one should be coming soon. Weird.
Added by edit.
I'm assuming you're some kind of technician or repairman? If so, then it's good that you're telling me this. I've been considering the possibility that this apx bootloop thing is not really an apx bootloop but rather something the user is doing or a button is stuck or something silly like that. Good to know the problem is real.
Mind telling me how you fix this? Since I can't replicate this, I have no idea how to even begin fixing this.
Acidburn find out a solution for this problem
Please check this thread
http://forum.xda-developers.com/showpost.php?p=11306979&postcount=92
Note that he is using the NVFLASH_46 and although is has been deprecated, it works like a charm:
1) NVFlash the g tab_46 (it works with 46 and doesn't with other)
2) Let it finish and boot up
3) Go to storage setting and unmount the sd card.
4) Run a format.
5) Go to security and do Restore to factory settings
6) As part of this it will reboot. When restarts you'll see the birds. Everything is back to normal.
Good luck
K J Rad said:
With the tablet in APX mode and plugged into your computer...
1) Open a command shell
2) Navigate to your nvflash directory
3) type in the following command but DO NOT hit enter
nvflash --bl bootloader.bin --download 6 part6.img --go
4) Hold down the volume UP key on the tablet and press the enter key on your computer.
5) Continue to hold the volume UP key until the tablet starts the nvflash.
6) Release the volume up key and when the nvflash finishes it should boot into CWM
Click to expand...
Click to collapse
This got me into CWM (Yay!). This, however, did not fix the APX looping (boo).
I repartitioned, wiped, nvflashed, wiped, repeat. Even though I have more options now with CWM, the end outcome is still the same that after the initial boot, it won't boot again.
BUT, I did find a working method. See the original post.
goodintentions said:
I'm interested to know what the hell you did to get to the apx bootloop in the first place. I've gone through great lengths to try to replicate people's problems. I've even purposely done things out of order, done things wrong, drop the gtab couple times, etc. and I've never run into this problem.
Click to expand...
Click to collapse
I was hoping you'd respond, goodintentions, as I used your NVFlash files and instructions this last time around from your very handy site.
I'm not sure exactly what happened. I do know that Rom manager was involved somehow, trying to use that integration with recovery. (I know, not recommended, but at first it acted like it would work).
Also, I think a 1.2 Rom was mistakenly flashed on top of a 1.1 bootloader somehow.
The details are fuzzy. It's been so many things since then that who knows..
goodintentions said:
I'v tried rom manager, wrong cwm version, and wrong bootloader. And I still can't replicate this apx bootloop thing. And I have 2 gtabs to work with. A 3rd one should be coming soon. Weird.
Added by edit.
I'm assuming you're some kind of technician or repairman? If so, then it's good that you're telling me this. I've been considering the possibility that this apx bootloop thing is not really an apx bootloop but rather something the user is doing or a button is stuck or something silly like that. Good to know the problem is real.
Mind telling me how you fix this? Since I can't replicate this, I have no idea how to even begin fixing this.
Click to expand...
Click to collapse
I am a tech. Been working with/on/in electronics and computers for roughly 35 years. I had a hard time believing the problem was real until I had one in my hands that was doing it. I've tried doing it to my own tablet but a simple nvflash always got me going again.
imurg said:
Please check this thread
http://forum.xda-developers.com/showpost.php?p=11306979&postcount=92
Note that he is using the NVFLASH_46 and although is has been deprecated, it works like a charm:
1) NVFlash the g tab_46 (it works with 46 and doesn't with other)
2) Let it finish and boot up
3) Go to storage setting and unmount the sd card.
4) Run a format.
5) Go to security and do Restore to factory settings
6) As part of this it will reboot. When restarts you'll see the birds. Everything is back to normal.
Good luck
Click to expand...
Click to collapse
This is successful in some cases but not all. In some cases the bootloader has to be updated using factory stock recovery. ClockworkMod and nvflash don't update the bootloader (and I suspect some other system related partitions/information) properly. For those cases the fix is a little more complex. This process...
http://forum.xda-developers.com/showpost.php?p=13474033&postcount=114
has worked on all but one of the tablets I've recovered. The odd one out required an extra reboot (though I was doing the steps from memory and on an unfamiliar computer so I could be mistaken). However... as noted above... a subsequent nvflash of even the same image resulted in another APX loop. The end result was I had to craft a custom nvflash for each of those machines to avoid the problem in the future. That may or may not be necessary for all cases but since it's relatively easy I just do it out of habit now.
Keep in mind that serious APX looping issues are very rare in the grand scheme of things. Many times folks get confused and fail to follow directions properly and think they have a bigger problem than they really do. The overwhelming majority of times a simple nvflash and repartitioning will fix these things right up.
Added: BTW, the best way I've found to avoid the APX loop issue entirely... do a data wipe before you flash a new ROM and then again immediately after and before you boot it for the first time. I know... one should be enough... but if you make it a habit to do two... then you'll probably remember to do at least one of them ;-)
Great info. I shall try not to enter another painful APX loop. I was shocked how many things I had to try and places I had to go before I found a working method. I guess I really did a number on this thing somehow. But I'm happy that it's back.
I didn't have to do the more painful one you mentioned, but honestly I was ready to try about anything short of slaying a dragon.
Greetings Everyone,
First, as a newbie to this site, thanks for all the great assistance. Two suggestions to other newbies, if I may be so bold.
1) Recovery Mode - In literally hours of searching, I couldn't figure out why my S3 wouldn't go into recovery when pushing Volume Up, Home, and Power keys. Finally, I found one post that suggested I push the Volume Up and Home Keys first, then press the Power Key. This has worked consistently ever since. Don't know if it's a quirk specifically to the S3, but it certainly empowered me.
2) Download Mode Soft Brick Bootloop - My S3 was soft-bricked with a bootloop in Download mode. I searched for hours for a solution. Finally, one post said I simply had to use Odin to give it something to Download, which would subsequently release it from its bootloop. When I did this, the progress bar magically appeared, the file transferred, and when it was done, my phone was no longer stuck. Problem solved.
Since these two fixes worked for me, but were so hard to find, I thought I'd post them again, in case someone else gets stuck in the same hell I was. Literally spent a day on these two issues alone.
Thanks again to all. I surely would have been stuck in many other states of confusion if it wasn't for this wonderful forum. Best to all.
It's nice to see a post where the user has used their noggin and fixed it by trial and error!.
Well done and thanks for posting!.
shivadow said:
It's nice to see a post where the user has used their noggin and fixed it by trial and error!.
Well done and thanks for posting!.
Click to expand...
Click to collapse
Thanks. )
Hello! So awhile ago, I decided to try to root my new phone, ensuring model and etc was correct (CPH2459, this should be the usa unlocked variant right?) annddddd... it did not turn out so well. I had a friend recommend I reset- (which I mean I don't see what that would do but I have bootloader already unlocked so..) which just led me to being stuck on the setup screen where i cant get past wifi without my phone restarting- without fail to that as well. Also like touchscreen didnt work half the time and physical keys (Power, Volume) didn't seem to respond when the device was on either (excluding for a hard restart).
I followed this guide step by step (in no way blaming those individuals) https://forum.xda-developers.com/t/...guide-from-fastboot-obtain-root-more.4495801/ and my phone is now stuck in a fastboot loop.
I do wish to clarify that I am sure I followed step by step, I didn't make a backup though as the initial guide didn't present how to do so.
I'm honestly afraid to do anything more to my phone, and I really do need this to work as it just happens my other phone broke recently. Would appreciate any help so, very much, I have no idea what I'm doing and I haven't the slightest clue as to what may be wrong.
I do understand this question has been asked a bit with this phone and there are other threads, but I couldn't find my answer. So I'm hoping for some direct help.
nemmieve said:
Hello! So awhile ago, I decided to try to root my new phone, ensuring model and etc was correct (CPH2459, this should be the usa unlocked variant right?) annddddd... it did not turn out so well. I had a friend recommend I reset- (which I mean I don't see what that would do but I have bootloader already unlocked so..) which just led me to being stuck on the setup screen where i cant get past wifi without my phone restarting- without fail to that as well. Also like touchscreen didnt work half the time and physical keys (Power, Volume) didn't seem to respond when the device was on either (excluding for a hard restart).
I followed this guide step by step (in no way blaming those individuals) https://forum.xda-developers.com/t/...guide-from-fastboot-obtain-root-more.4495801/ and my phone is now stuck in a fastboot loop.
I do wish to clarify that I am sure I followed step by step, I didn't make a backup though as the initial guide didn't present how to do so.
I'm honestly afraid to do anything more to my phone, and I really do need this to work as it just happens my other phone broke recently. Would appreciate any help so, very much, I have no idea what I'm doing and I haven't the slightest clue as to what may be wrong.
I do understand this question has been asked a bit with this phone and there are other threads, but I couldn't find my answer. So I'm hoping for some direct help.
Click to expand...
Click to collapse
I'm guessing you noticed that the link they posted for the downloaded ota is the gn22000 model correct? yours is CPH (as i saw you stated) so i was just double-checking to make sure you didn't download the wrong variant's ota..