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[Q] My tablet is completely f***ed

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Gloftking
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Exclamation cant believe this

Quote:
Originally Posted by deltatux View Post
nvflash is meant to be a debugging software as an absolute last resort to restore a Tegra based device. More on nvflash here:
http://forum.xda-developers.com/wiki/Nvflash

The blobs are tied to your device because nvflash works pretty much at hardware level, so without your own blobs, it's nearly impossible to recover. Here's the procedure to extract the blob before brick: http://www.xda-developers.com/androi...with-flatline/

As for "writing to bootloader", if you can't access the bootloader now, it may be because you flashed the wrong bootloader (likely from the 3G variant of the Nexus 7 instead of WiFi-only or vice versa). Unless you can somehow gain access to fastboot, you'll need to recover via nvflash.

Without the blobs backed up, you'll probably be better off replacing the Nexus 7 motherboard with a working OS and all.

deltatux
are you people seriously saying that one command sent electronically through a wire can physically break a device to the extent that it is 100% impossible to repair electronically (if there are no blob files made in advance to preform a recovery). It just makes me wonder how could such a command exist (who on earth would use it). as fer as replacing the motherboard is concerned my n7 is a 32 gb meaning it will be hard to find an affordable replacement.

BTW I am pretty sure the bootloader was for the wifi version (my n7 is wifi) and I am also suspicious that the nexus toolkit had bricked my tablet because I tried the temporary boot feature and I saw in the corner something like "downloading bootloader img". At some other point in time I used the dreaded command (either before or after). I cant remember which one of these these operations had caused the brick because it was only later I noticed the tablet was in a Sleep of Death http://forum.xda-developers.com/images/smilies/mad.gif

thanks for the advice anyway
 
ArXiLaMaS
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Quote:
Originally Posted by deltatux View Post
The blobs are tied to your device because nvflash works pretty much at hardware level, so without your own blobs, it's nearly impossible to recover. Here's the procedure to extract the blob before brick: http://www.xda-developers.com/androi...with-flatline/
Deltatux can you tell me pls if I can use this guide with KK 4.4.4?
Sorry for asking here but I can't post yet in the developers threads.
 
Gloftking
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Exclamation Just a potential fix proposition

Quote:
Originally Posted by deltatux View Post
Have you tried to flash the stock Android images using fastboot?

Note: Following command WILL WIPE your device.

Code:
Select Code
fastboot -w update image-nakasi-ktu84p.zip
For Nexus 7 (2012 WiFi): https://developers.google.com/androi...s#nakasiktu84p
For Nexus 7 (2012 3G): https://developers.google.com/androi...#nakasigktu84p

deltatux
Quote:
Originally Posted by deltatux View Post
If you erased the bootloader without flashing another one back in, you just bricked your device. The only course of action to save it is to do an nvflash but that would have required you to back up the nvflash blob before this incident. If all else fails, your tablet's a dud.

I would recommend either replacing your entire tablet or buy a replacement board on eBay and replace the motherboard yourself and then it will run like new.

deltatux
Quote:
Originally Posted by Erovia View Post
If you entered that command, your device is hardbricked and the only thing you can do about is to send it to Asus/Google for RMA.

guys I have managed to get my nexus 7 into APX mode by pressing the buttons on the side however I am not sure where to go from here. Every time I try to update driver in device manager I get the error "There is no driver selected for the device information set or element" and as a result cannot update it to the asus apx mode interface thing that nvflash provided. if there is any other possible course of action I can take from here that does not involve physical repair then please do let me know after all I Only plan to replace the motherboard as a last resort option
 
Erovia
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To be able to recover from APX mode, you'd have to have a backup of your tablet. Without a proper backup, you can't do much. Also, there is no way of using someone else's backup, since every motherboard has a different signature key.
Phone: Nexus 4
ROM: ParanoidAndroid 4+
Kernel: hells-Core
Recovery: MultiROM
--------------------------------------------------------------------------------------------------------------------------
Tablet: Nexus 7
ROM: SlimKat 5+
Kernel: LeanKernel
Recovery: MultiROM
--------------------------------------------------------------------------------------------------------------------------
Phone: Motorola Milestone A853 ROM: CyanogenMod 9.1.0d Recovery: Open Recovery MiniMod by -FuFu-
 
nihil sleighride
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Could someone confirm if my assumptions are correct?

Mine is stuck in APX mode therefore if I send it to ASUS to repair my data will lost? If the motherboard is replaced my data is lost? In its current state my data on it is unrecoverable?

Just wondering if it's safe to sell for spares, seeing that I've got no way to wipe it.
 
Gloftking
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Sign hold on a minute

I thought NVFlash could somehow be used to flash a completely new bootloader with a 'new' crypto-signature as that is the sort of thing that can be achieved with the nexus 5 and various other non Tegra 3 devices. What is the big deal with the n7 and besides how can you expect anyone to use a system like that (blobing in advance) when perhaps 90% (or more) of people who run into this problem have never herd of such a system and would then be completely SOL.

Also is there any way in which one could get hold of the internal SD card practically so it can be taken out and surgically re-implanted into the new motherboard or vice-versa with the bootloader to prevent me from having to purchase another 32GB logicboard (such a waste).
 
Gloftking
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Quote:
Originally Posted by nihil sleighride View Post
Could someone confirm if my assumptions are correct?

Mine is stuck in APX mode therefore if I send it to ASUS to repair my data will lost? If the motherboard is replaced my data is lost? In its current state my data on it is unrecoverable?

Just wondering if it's safe to sell for spares, seeing that I've got no way to wipe it.
Oh and yes all data will be lost if they replace the motherboard as they will throw away the old one or re-use it and re-solder etc. However if you're lucky they will use special tools to flash the software back into the main board although this is almost guaranteed to format everything on the internal SD unless you can detach it somehow beforehand (still waiting on an answer for that one) or ask the data recovery people to rescue the data when you get it back (that's only if they did not throw it away) or even tell the asus repair service not to delete the data if possible. The main issue is when you flash a tablet or phone you will be re-installing the operating system and the internal SD is part of that operating system so there is almost no way to save the data on it in just a soft-bricked state never mind a hard-bricked one.

And yes most of your assumptions would match that of my own right now. having said the above there is probably no way an end user could get data off it if you sold it as a spare because there would be no way to access it unless they managed to escape the apx mode and used some kind of file recovery program via the adb which is why I do then again say don't give up hope just yet (I am not an expert)

BTW how did you get into APX mode because if you did what I did (erased the bootloader via fastboot) then you are as of now SOL (awaiting further confirmation of that) whilst on the other hand if it was a charging issue or anything else then I would not recommend any of the above suggestions. There are numerous stories of people being stuck in apx mode and got out again after some time and if you did not modify your tablet before this happened then all your data will still be their

there seems to be too many APX 'ed devices right now and I just wonder what Google must be thinking about this and if they will do something or not
 
nihil sleighride
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Mine was rooted and had been pretty much updated when a new Paranoid Android was released. I flashed a new release, which took way longer then normal to update. All seemed OK but a few hours later, it completely locked, so I attempted to reboot and that's when it got stuck in APX.
 
bshiznit
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Default RMAed $165 HELP!

@deltatux, et al. - so the cable came out when I was trying to flash bootloader (which was taking FOREVER... very unusual) in my daughter's tablet and I had to send it in for RMA. They want $165 for the motherboard ALONE. I've asked them to ship it back to me.

If I get a new motherboard off like eBay is it just a simple swap? I'm just checking I have built many PCs over the year and think I can handle the swap...

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