Bricked? APX mode?

youvandal · Jun 27, 2012

I was given a HOX international tegra 3 by a friend to fix but i am afraid i am hitting a wall. He upgraded to the galaxy s3 and is trying to sell this off. I don't think he tried rooting, unlocking the bootloader, flashing anything. He stated that it would force close while trying to open Settings.app and everything started force closing when he inserted his SIM. He gave it to me because i was into flashing nexus one roms and kernels when i had a nexus one.

The phone doesn't seem to power on or show any signs of life on the phone itself. If i plug it into a windows machine, it recognizes it as "APX" but no driver is found or installed. I have searched around and neither ADB, Fastboot or nvflash recognize the device. I tried installing various drivers to no avail. I have pointed it to "android debugging bridge" and "NVidia USB Bootrecovery driver for mobile devices". ADB, fastboot and nvflash still do not recognize the device. It is also not listed in Device manager. Universal Naked beta driver also did not do anything. Can anyone point me in the right direction? I have done some brief reading on the S-OFF thread and it seems like you guys needed a device in APX mode for further progression? Maybe we can help eachother out.

TIA

vj4 · Jun 27, 2012

Message Xmoo about the APX mode he's in the S-off thread should have some ideas. As to getting it to boot i'm assuming you've tried holding power for ten seconds?

Thunder07 · Jun 27, 2012

i would suggest calling yor friend over,
tying him to a chair and beating him until he remembers how he got it into APX,
ppl would kill for that device in APX.

supendal · Jun 27, 2012

Careful, if you achieve to boot it, you may never be able to get in apx mode again. First talk to some experienced people in s-off thread to see what we can squeeze out from apx mode.

Sent from my HTC One X using xda app-developers app

youvandal · Jun 27, 2012

tried every single power + volume combination possible. Everything leads to APX mode. It is like a 4 second wait with power and volume down. if its just power it takes like 15 seconds for the pc to recognize. I msged xmoo and am awaiting his reply.

dryan433 · Jun 27, 2012

Yes get over and talk with the team who are working to fully unlock this phone as they need apx mode and are dieing to have this mode one of them may even buy it from your friend in its current state as the crackers of this device are dieing to get this mode turned on on other devices if it's going to lead to an fully unlocked hox I sure am dreaming of the day this happens as I'm sure others are too so try talk with one of the guys over on other threads ask to see if anyone of them would like to buy it instead

atm do not I mean do not try to get the phone to boot normally until you have an answer of someone apx mode is needed and no one can get the hox in this mode

Sent from my HTC One X using XDA

KrisPerry · Jun 27, 2012

dryan433 said:
Yes get over and talk with the team who are working to fully unlock this phone as they need apx mode and are dieing to have this mode one of them may even buy it from your friend in its current state as the crackers of this device are dieing to get this mode turned on on other devices if it's going to lead to an fully unlocked hox I sure am dreaming of the day this happens as I'm sure others are too so try talk with one of the guys over on other threads ask to see if anyone of them would like to buy it instead

atm do not I mean do not try to get the phone to boot normally until you have an answer of someone apx mode is needed and no one can get the hox in this mode

Sent from my HTC One X using XDA

It would appear that the device defaults to apx mode when it is bricked. The fact that it won't even boot to hboot indicates this

co@ch · Jun 27, 2012

youvandal said:
If i plug it into a windows machine, it recognizes it as "APX"...

... It is also not listed in Device manager.

When it's not listed in device manager, so where did it show up?

Sent from my HTC One X using xda premium

KrisPerry · Jun 27, 2012

co@ch said:
When it's not listed in device manager, so where did it show up?

Sent from my HTC One X using xda premium

How exactly do you know it is apx mode if it isn't in device manager

Sent from my HTC One X using Tapatalk 2

youvandal · Jun 27, 2012

KrisPerry said:
How exactly do you know it is apx mode if it isn't in device manager

Sent from my HTC One X using Tapatalk 2

In the bottom right of the taskbar, there is an icon that's normally used to safely eject a USB device. The only thing listed is APX. If i unplug the phone, the icon for apx disappears and vice versa.

Evil-Dragon · Jun 27, 2012

I think I know why you can't get nvflash to talk to it. Chances are you are probably using a version designed for Tegra 2. There is a Tegra 3 version floating around but I'm sure it was a Linux version so you'd need Linux to use it. I'm sure I had a link but I can't find it. Also you might need the secure boot key (sbk) to flash anything but even just getting nvflash to do a --sync is a start.

Sent from my HTC One X using Tapatalk 2

ingFu · Jun 27, 2012

http://developer.nvidia.com/linux-tegra-archives

co@ch · Jun 27, 2012

Evil-Dragon said:
I think I know why you can't get nvflash to talk to it. Chances are you are probably using a version designed for Tegra 2. There is a Tegra 3 version floating around but I'm sure it was a Linux version so you'd need Linux to use it. I'm sure I had a link but I can't find it. Also you might need the secure boot key (sbk) to flash anything but even just getting nvflash to do a --sync is a start.

Sent from my HTC One X using Tapatalk 2

You mean this one?
http://xdaforums.com/showthread.php?p=27491035

Sent from my HTC One X using xda premium

kb0n · Jun 27, 2012

Evil-Dragon said:
I think I know why you can't get nvflash to talk to it. Chances are you are probably using a version designed for Tegra 2. There is a Tegra 3 version floating around but I'm sure it was a Linux version so you'd need Linux to use it. I'm sure I had a link but I can't find it. Also you might need the secure boot key (sbk) to flash anything but even just getting nvflash to do a --sync is a start.

I'll just copy-past myself:
Drivers etc. should be provided by this package: http://developer.nvidia.com/tegra-android-os-images (download here from list: http://developer.nvidia.com/tegra-resources).

Can download Linux,Mac,Win versions, all including drivers, nvflash and other stuff (bootloader, recovery.img, ...)

xmoo · Jun 28, 2012

Hi,

Thank you for PM'ing me.

The phone gets noticed as APX, which is good. You need the Tegra3 Nvidia drivers. The problem is that you need to correct address in Nvflash. Cause if you talk with the wrong address, you could brick your phone. Since your friend kept it off for couple of weeks, I think that is the way it got into APX mode.

On old WM devices, when the battery drained and device had no power for a long time. The device would HardReset itself on the next power cycle it got. Maybe this is the same thing with the HOX. Battery is to empty, so it can't boot. Anyone who is willing to try the same thing? I use mine HOX everyday, so Can't leave mine powerless

youvandal said:
In the bottom right of the taskbar, there is an icon that's normally used to safely eject a USB device. The only thing listed is APX. If i unplug the phone, the icon for apx disappears and vice versa.

Screenshot

kb0n · Jun 28, 2012

xmoo said:
On old WM devices, when the battery drained and device had no power for a long time. The device would HardReset itself on the next power cycle it got. Maybe this is the same thing with the HOX. Battery is to empty, so it can't boot. Anyone who is willing to try the same thing? I use mine HOX everyday, so Can't leave mine powerless

Hehe, that was my first attempt after I read about APX on other devices that mentioned taking out the battery first. I let battery run out, booted few times into hboot etc until it didn't turn on anymore. Anyway, didn't work, as soon as I plugged in a USB cable, the phone had juice again and booted normally :/
If I remember correctly, there were also a few users who opened their HOX (think for wifi fix) and tried with disconnected battery -> no success

xmoo · Jun 28, 2012

kb0n said:
Hehe, that was my first attempt after I read about APX on other devices that mentioned taking out the battery first. I let battery run out, booted few times into hboot etc until it didn't turn on anymore. Anyway, didn't work, as soon as I plugged in a USB cable, the phone had juice again and booted normally :/
If I remember correctly, there were also a few users who opened their HOX (think for wifi fix) and tried with disconnected battery -> no success

Yes but there is a difference. When emptying battery and directly plug it in. I would say empty battery in couple of days and then leave it for couple of weeks. Just like this story.

kb0n · Jun 28, 2012

xmoo said:
Yes but there is a difference. When emptying battery and directly plug it in. I would say empty battery in couple of days and then leave it for couple of weeks. Just like this story.

As I said, I didn't directly plug it in, but loaded hboot few times to drain the rest of the juice out. Then waited a few hours. Empty is empty, whether for 1 hour or 1 week.
Anyway, I gave up that attempt as I read about the guys who tried with disconnected battery. Can't get "emptier" than that ^^

xmoo · Jun 28, 2012

kb0n said:
As I said, I didn't directly plug it in, but loaded hboot few times to drain the rest of the juice out. Then waited a few hours. Empty is empty, whether for 1 hour or 1 week.
Anyway, I gave up that attempt as I read about the guys who tried with disconnected battery. Can't get "emptier" than that ^^

Don't you think phone will have a battery on board for HBOOT? Like PC's.

kb0n · Jun 28, 2012

xmoo said:
Don't you think phone will have a battery on board for HBOOT? Like PC's.

Actually I don't, as far as I know there are no volatile memory in mobile phones ([edit]no crucial ones at least...I know i.e. RAM is volatile[/edit]), hence you don't need a battery to keep it alive, you just need one to run it.

Anyway, I'd be glad to be proven wrong ^^ Though it might be tough for some people, if they had to lay off their phones for weeks ^^

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