Database Users

TF101 Won't Enter APX Mode

If you want to offer help PLEASE read through the thread, or at least the initial post. It seems like I'm repeatedly answering the same questions that were already answered.
I've tried to boot in APX and all I get is the black screen, yet neither Windows 7 64bit/Linux Mint 64 on one PC and Windows XP on another don't detect it at all. I know the cable works because when I had CWM installed I could see it attached via ADB. I'm a b30
Edit: I managed to get the stock ROM back on it, but it still doesn't want to boot into the bootloader/APX mode. I know it's not necessary but I would like to have it as a failsafe for the future.

brando56894 said:
This all started with me wanting to go back from AOKP to stock, I flashed a rooted version of 9.2.1.17 and it kept telling me to update, but when I did it failed because CWM was installed. It also wiped my system. I found 9.2.1.24 but couldn't flash it because TWRP wouldn't stick. I tried to install the stock recovery, which worked in a sense that it removed CWM but left me with just the Android and the exclamation point (I can't seem to get past that no matter what I do [vol +, Vol -, power or any combination of those] ) I decided to use NVflash to get back to complete stock and start over.... The only problem is that Windows 7 doesn't even detect the TF when its in APX mode, hence it doesn't ask me to install the drivers, nor will they install manually.
So my TF is soft bricked and nothing works. I'm going to reboot into Linux now to see if I can get nvflash working. Any other suggestions?
Edit: Linux Mint didn't detect it either I know it's not the cable since I was able to see the TF via ADB when I had CWM installed. Also the major thing that is worrying me is will the TF be recoverable if the battery dies? I have no way of knowing if it is actually off or just in APX mode, I obviously can't do a battery pull and I can't power it down from the recovery or the OS. IIRC it also won't charge when it is in recovery and I'm assuming the same is true for boot-up and APX mode.
Click to expand...
Click to collapse
Same to me-- win7 does not recognize my tf 101- apx is installed-works with another transformer well- if i do vol down and then vol up i see the laying android with exclamation mark.
no solution till now- hope you had more luck-
By the way- try to load it normal - in my case it works.
kind regards
gandalf

I just tried connecting it to an older Dell with a P4 in it and it doesn't detect it either, it just seems like the TF doesn't want to boot into APX mode. I'm doing Vol + and Power from both the recovery and from the initial splash screen, then it reboots to a black screen which I'm assuming is APX mode. From the black screen I've tried Vol + and Power for as long as 30 seconds and still nothing. There were also times when it would sit at the initial splashscreen and then go to a black screen, then I'd try to enter APX mode from there but it would be the same thing.
I've been contemplating getting a Nexus 7, partially because I lightly stepped on the screen of my TF one night and damaged it enough to cause the LCD crystals to break (there about two or three grayish "lines" where I stepped on it) but not hard enough to crack the glass. The screen will also flicker some times on that side and will also randomly shut the screen off. Maybe this is a sign telling me to get a N7?

Do you have debug mode enabled?
Where did you get the win 7 APX mode software. Some links in this site are to defective software. Go to the SDK kit site and download the software there. http://developer.android.com/sdk/index.html

Rumbleweed said:
Do you have debug mode enabled?
Where did you get the win 7 APX mode software. Some links in this site are to defective software. Go to the SDK kit site and download the software there. http://developer.android.com/sdk/index.html
Click to expand...
Click to collapse
Debug mode is for ADB, not APX. Debug mode is set in Android and with APX no Android is loaded.
I have used the live cd of Ubuntu 11.10 without installing any driver by myself. It recognized the TF with APX in my case.

There is no debug mode considering that the OS isn't installed. AFAIK debug mode is only necessary to use ADB while booted into Android. APX is something that is built in to the device. I downloaded the drivers from android.mobi which has an "unroot/unbrick" package, that doesn't matter though because Windows never asks me to install the driver so the drivers don't seem to be the problem, considering Linux (which doesn't require any drivers) doesn't see the device either.

I had the same, downloaded the drivers, but couldn't install.
After I made sure I had the correct drivers, I clicked in hardware settings on the thingy with the exclamation point, I choose manual search and had Windows search the entire c:\ drive, after a while it installed
Sent from my Transformer TF101 using xda premium

That's my problem guys. APX mode/unknown device doesn't show up in device manager

oi, than I cant help you, sorry

I think it's F'ed because I took it apart to make sure it was turned off by disconnecting the battery and then did the power and Vol+ combo but the PC still doesn't detect it.

1. your battary is empty, charge it
2. your battary is done.
3. your power key or vol-up key do not work.
4. you did not press two keys in the same time long enough
5. cable doesn't work
6. usb port doesn't work, try another one.
7. you did not pay attention on the sound of device connected nor the device list.
8. your windows broke. try another pc.
---------- Post added at 11:39 PM ---------- Previous post was at 11:33 PM ----------
get a micro sd and copy rom to it and flash, since you said cwm works ok

vista1984 said:
1. your battary is empty, charge it
2. your battary is done.
3. your power key or vol-up key do not work.
4. you did not press two keys in the same time long enough
5. cable doesn't work
6. usb port doesn't work, try another one.
7. you did not pay attention on the sound of device connected nor the device list.
8. your windows broke. try another pc.
---------- Post added at 11:39 PM ---------- Previous post was at 11:33 PM ----------
get a micro sd and copy rom to it and flash, since you said cwm works ok
Click to expand...
Click to collapse
1 & 2 It boots up to the initial splash screen and to the android recovery so the battery is ok
3. The Vol + does work unless it suddenly died because I was using it moments before I bricked it
4. I would say 30+ seconds is long enough
5. The cable does work because it charges the unit and when I had CWM installed I could see it via ADB
6. Tried another port, nothing
7. The sound is definitely noticeable and it's kind of obvious if it's not in the device manager list
8. I tired two different computers, and three different operating systems. Including Linux.
I know you are trying to be helpful but ALL of these were answered in previous posts, if not the OP.

I'm having the same issue with my pad not booting into APX, might I ask how you got the stock ROM back on it without APX?

Luckily I had the stock recovery installed and I was able to place the OTA on A MicroSD card and named it so that it would flash automatically once I booted into the recovery.
Sent from my Transformer TF101 using Tapatalk 2
Edit: here's how to do it
baseballfanz said:
Download the latest official firmware from Asus.
Extract the zip from within and rename it to "EP101_SDUPDATE.zip" (without the"" )
Put it on the root of your sdcard
Boot into stock recovery and it should flash it
Click to expand...
Click to collapse

I have to go with #5. My Transformer would charge when using my cord and so I thought it was good. Plugged it into the computer and nothing. Switch to my wife's cord and the computer saw it instantly. It was then able to see APX mode.

Yea it was actually the cord being stupid, when I got back to my house I tried my other cord and it connected just fine. I actually just sold my TF yesterday to a friend for $250 so that I can get a Nexus 7
Sent from my ADR6425LVW using Tapatalk 2

So this is making me thing that my cord is the issue, but I tried 3 different cords and none of them recognized. Is it possible the device itself has a faulty connection?

It's entirely possible, have you tried a different computer/different USB ports first though?

Tried every port on two machines as well as in linux. My HTC G2 connects just fine to everything.

You may be screwed Do you have the dock? Does it connect and charge fine with that?

Bricked nexus 7 please read!

Hi,
I. Have gotten myself into quit a frustrating situation. My nexus 7 was unlocked, rooted and had several different custom roms installed at various times and had never had a problem. But then one time in particular, when trying to flash a rom (which I can't even remember which one it was,) after the rom had "successfully" been flashed, it rebooted to the splash screen, which it stayed at for a very long time; before just turning into a series of flashing vertical lines that never end. I can use the power+vol- method to get to fastboot, but not recovery; it would appear that my recovery has been wiped as I get the same google splash screen loop as when I try to boot. My problem is that nothing I do allows me to successfully connect the device to my pc (w7, 32bit.)
I have uninstalled any conflicting drivers, un/re-installed the proper drivers from like 7 different guides, I have also tried two different nexus root toolkits. I even tried to use a Linux machine to no avail. I have switched USB cables, everything I have tried has not worked. This is by no means my first foray into android devices, I even freshly installed my android SDK and still my computer just fails to recognize the nexus 7 in fastboot mode.
Any tips or advice would be a godsend. Thanks.

This sounds like a issue a few people have been having.. As far as i know as of a week ago there is no solution . You need to flash the boot-loader it sounds like. There is a thread about this. Search for NV FLASH .. OR APX MODE. Sorry for being lazy and not looking for the thread for you..
They may have some things in that thread that you have not tried.

Turn your Nexus off and plug it into your computer. Does your Nexus start charging? A completely bricked Nexus wouldn't charge. If it starts charging, then try turning it on into Fastboot mode.
Sorry, I'm no dev. Just a random thought to try. But if your Nexus can charge you shouldn't be fully bricked, hopefully. At least this is what I think.

When you say your computer fails to recognise the device...
If you open your device manager in Windows and then plug in the nexus 7 in fastboot mode, what happens? Does it show up in the device manager in any category? Even with a yellow exclamation mark or as unknown device?
Sent from my Nexus 7 using Tapatalk 2

My bro bricked his N7
He was rooted and unlocked, flashed a rom now it bootloops on the logo. Now when doing adb devices, it doesnt detect the device when in bootloader, went to device manager and shows problem with driver. Tried other drivers but says its up to date. Thing is I just upgared his friends N7 with the same drivers so I know thats not a problem.
It wont go into recovery either. Now when it is bootlooping, the decive is recognised when doing adb devices. So can I flash a factory image when it is bootlooping or does it have to be in fastboot?

TRY THIS
from powered down,
hold VOL- and POWER for ten seconds,. then let go of POWER and still hold down VOL-

dramdrum said:
When you say your computer fails to recognise the device...
If you open your device manager in Windows and then plug in the nexus 7 in fastboot mode, what happens? Does it show up in the device manager in any category? Even with a yellow exclamation mark or as unknown device?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
it doesn't even acknowledge that I plugged anything in to the computer at all.

chismay said:
TRY THIS
from powered down,
hold VOL- and POWER for ten seconds,. then let go of POWER and still hold down VOL-
Click to expand...
Click to collapse
Just goes to bootloader?
Edit seems to be working now even though when doing adb devices in fastboot it doesnt list the device id

In fatboot mode you don't have adb access - down load a recovery image and name recovery.img
Hold shift and right click in the folder recovery.img is in
Choose open command here, in cmd type
fastboot devices
If you see your serial number proceed
fastboot flash recovery recovery.img
When finished reboot to recovery and flash rom of choice
ps, you have had to either change your path in enviromental variables to include platform-tools from the sdk or have both fastboot.exe and recovery.img in the same folder that cmd is pointed to
Sent from my HTC Vision using xda premium

Soft Bricked Nexus, fastboot/bootloader non-responsive

So I managed to bricked Nexus last night trying to flash the factory images. It wouldn't flash correctly through the Nexus Root Toolkit, due to the outdated bootloader. I tried to install the 4.2 boot loader through recovery, (as it was flashable). It it didn't work, and I can't boot into recovery as it gets stuck on the splash screen. And of course I can do anything in fastboot because the tablet freezes when I plug in USB. Anything else I can try?
Here's some quick info.
Recovery- TWRP 2.3.3.x
Bootloader- 3.3.4
ROM- CM10.1
Sent from my Rooted Nexus 4

JiG Brick USB
JiG Brick USB might help, but i don't know for sure.

AW: Soft Bricked Nexus, fastboot/bootloader non-responsive
Are you able to boot into boot loader? If yes, you are not bricked. You can flash the factory image and you can flash a new recovery.
Sent from my Nexus 7 using xda app-developers app

So I got back from school today and tried to turn it back on again, and it decided to boot up normally.

This is happening to me. I can boot the Nexus into Fastboot, but as soon as you plug in a USB it freezes and any commands sent from the PC receive only "awaiting device" in response. I can't boot into recovery, it just stays on the Google splash screen and unfortunately the ROM I was trying to install didn't work. Any advice?

Ethicistabdiel said:
This is happening to me. I can boot the Nexus into Fastboot, but as soon as you plug in a USB it freezes and any commands sent from the PC receive only "awaiting device" in response. I can't boot into recovery, it just stays on the Google splash screen and unfortunately the ROM I was trying to install didn't work. Any advice?
Click to expand...
Click to collapse
Could you please describe a bit in more details what you are doing nd what is freezing?
If you are in bootloader mode, you can send only fastboot commands to your device, nothing else, so I am wondering what is freezing ...

AndDiSa said:
Could you please describe a bit in more details what you are doing nd what is freezing?
If you are in bootloader mode, you can send only fastboot commands to your device, nothing else, so I am wondering what is freezing ...
Click to expand...
Click to collapse
What I mean is that as soon as the USB is plugged in, the bootloader on the Nexus becomes completely unresponsive, I can no longer use the volume buttons to navigate the options or the power button to progress. It appears for all intents and purposes frozen and remains so after the USB is unplugged. Commands sent from ADB while the Nexus is in the bootloader just say "awaiting device" and nothing happens and I can't see the Nexus with ADB Devices.
I may not be using the best terms, I'm assuming the bootloader is the screen where you are given the options of recovery, restart the bootloader, start and so on. That screen becomes completely frozen when the usb cable is plugged in. If I select for it to go to recovery and do not plug in the USB cable, it goes to the google splash screen and the recovery never loads. I've had this Nexus fully rommed before, it has Clockwork Mod Recovery Manager on it and I've had no trouble getting it to load previously.
I'm doing all this because I tried to install a new rom (Paranoid Android Nightlies, latest version) and it did not install properly, upon start it says gapps has stopped and the setup wizard has stopped working - the OS will not load but will just keep repeating these error messages. Thus, I'm trying to either get into recovery or send ADB commands to the tablet to fix it.

AW: Soft Bricked Nexus, fastboot/bootloader non-responsive
1.) When you are in boot loader, adb will not be able to connect to your device, you need to use fastboot instead. This command is part of the SDK and can be called from the command line. Eventually you need to add the directory containing the fastboot executable to your path.
2.) That the buttons do not respond any longer after plugging to USB is very strange.
- What bootloader version is installed on your device?
- What does fastboot devices print on the screen?
- Did you try already with a different USB-port / cable?
Sent from my Nexus 7 using xda app-developers app

AndDiSa said:
1.) When you are in boot loader, adb will not be able to connect to your device, you need to use fastboot instead. This command is part of the SDK and can be called from the command line. Eventually you need to add the directory containing the fastboot executable to your path.
2.) That the buttons do not respond any longer after plugging to USB is very strange.
- What bootloader version is installed on your device?
- What does fastboot devices print on the screen?
- Did you try already with a different USB-port / cable?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
All fixed now. It was actually the computer, an issue with the USB, did it on my laptop and was able to fix it pretty quickly. It was you differentiating Fastboot from ADB that got me there though, I tried that on my PC and when it didn't work I then did it on the laptop. Most likely wouldn't have gotten there without you, at least not so quickly. Thank you very much!

A load of problems...

So recently flashed CM 10.1 FUSION. Nexus battery drains, I end up turning it back on while on the charger. Then, it shuts down on me.. so I let it charge overnight. Turned it back, and I get stuck at a boot screen (FUSION). I attempt to turn my device off, and it just restarts. I have to turn it off from the bootloader (P+Up+Down).. I tried using the toolkit, but I freeze in the bootloader when I plug my device in.
Help.
Running 4.2.1
Yes I'm aware of the common problems, none of the solutions seem to be working.

Rovon said:
Yes I'm aware of the common problems, none of the solutions seem to be working.
Click to expand...
Click to collapse
Rather than say "yeah I'm aware of a bunch of different things", it would be better for you to state what you actually tried. That way nobody is guessing at what you attempted, and it will eliminate a bunch of back-and-forth Q&A. We don't know what you do and don't know.
It's clear from your description that you can get to the bootloader. What happens if you DO NOT connect the device to a computer, and try to start the recovery? (Note you also didn't bother to mention which recovery is on your device)
If the recovery starts, have you tried doing a factory reset? (I would say, make a backup, but that will only make a backup of your bootlooping OS).
cheers

bftb0 said:
Rather than say "yeah I'm aware of a bunch of different things", it would be better for you to state what you actually tried. That way nobody is guessing at what you attempted, and it will eliminate a bunch of back-and-forth Q&A. We don't know what you do and don't know.
It's clear from your description that you can get to the bootloader. What happens if you DO NOT connect the device to a computer, and try to start the recovery? (Note you also didn't bother to mention which recovery is on your device)
If the recovery starts, have you tried doing a factory reset? (I would say, make a backup, but that will only make a backup of your bootlooping OS).
cheers
Click to expand...
Click to collapse
I tried watching a majority of the "unbrick nexus 7" vids on youtube. They didn't get me too far
Holding power for a long time
Restarting bootloader
Root toolkit
If I don't connect it to a device, I can move through the bootloader but can't access recovery

Rovon said:
If I don't connect it to a device, I can move through the bootloader but can't access recovery
Click to expand...
Click to collapse
What happens when you try that? Does it stay frozen on the bootloader screen? Does the screen go dark and nothing seems to happen? Does it get partway into the recovery boot and then freezes up?
No communication with the PC evidences a driver problem; partial communication (meaning, simple commands seem to work, but commands that move data fail or seize up), generally indicates a problem with the USB port being used or a crap cable.
When you are in the toolkit, does the toolkit show you a device ID when the device is on the fastboot screen?

bftb0 said:
What happens when you try that? Does it stay frozen on the bootloader screen? Does the screen go dark and nothing seems to happen? Does it get partway into the recovery boot and then freezes up?
No communication with the PC evidences a driver problem; partial communication (meaning, simple commands seem to work, but commands that move data fail or seize up), generally indicates a problem with the USB port being used or a crap cable.
When you are in the toolkit, does the toolkit show you a device ID when the device is on the fastboot screen?
Click to expand...
Click to collapse
Sorry, I meant its frozen on the fastboot screen...
I can scroll through the fastboot, but that's it. None of the commands work, unless I hit power off. The toolkit tells me "fastboot device not found", when I try the Flash Stock + Unroot button. There is no device ID I can see on the toolkit. Also, drivers fail to install when I plug it in to my computer.

Rovon said:
None of the commands work, unless I hit power off.
Click to expand...
Click to collapse
Ummmm...
In fastboot that is exactly how you start different modes; you move through the menu items with volume Up/Down, and then you use the power button to select that menu item. That is certainly the way it works with the most recent (v4.13) bootloader, anyway.
Eh?? Maybe I misunderstand...
In your Device Manager on the PC, what is the Hardware ID for the Device(s) that show up when you plug the tablet in, and does your PC report it as an "unknown device", or something else?

bftb0 said:
Ummmm...
In fastboot that is exactly how you start different modes; you move through the menu items with volume Up/Down, and then you use the power button to select that menu item. That is certainly the way it works with the most recent (v4.13) bootloader, anyway.
Eh?? Maybe I misunderstand...
In your Device Manager on the PC, what is the Hardware ID for the Device(s) that show up when you plug the tablet in, and does your PC report it as an "unknown device", or something else?
Click to expand...
Click to collapse
I should've been more specific. When I say none of the commands work, I mean they don't do what they're supposed to. So if I hit "recovery mode" it will not go into recovery mode, it just stays stuck at the Google logo when it restarts.
As for device manager, when plugged in to the computer with Fastboot, I do get "android" under other devices. However, when I'm booting the device up regularly, the computer attempts to install drivers and fails. I do get "MTP USB Device" under portable devices. I have an unknown device under portable as well.
All 3 seem to have error symbols next to them.

Rovon said:
All 3 seem to have error symbols next to them.
Click to expand...
Click to collapse
Well, if you can't communicate with the device successfully, there's no hope of doing something correctly from the PC. So, try a few simple things on that angle of the problem first. The problem you are seeing could come from any number of places:
- damaged USB (or other) hardware on tablet
- bad / cheap USB cable
- damaged USB port on PC
- driver install issues
The symptoms you describe for fastboot sound a bit like the custom recovery got damaged or erased, although more severe (and not fixable) problems are also a possibility.
Since you previously installed a ROM, I would take it to mean that at one time you had at least one driver working (fastboot at a minimum), and possibly also ADB mode (in the OS and/or in the recovery). That's why I put "driver install issues" last in the short list above. If you never touched any of the drivers after you did your initial ROM installs, I would not expect driver issues ... but I don't know what you might have tried subsequently with the toolkit (which does fool around with drivers).
Are you using the OEM cable? Some aftermarket/charger cables have a short mini-USB connector, and one dollar cables off of eBay can be poorly constructed (bad shielding or impedance control, so they cause data errors at high speeds).
If you have an 2nd cable, I would try to see if you experience a different set of symptoms with that; same goes for trying a different USB port on your PC.
If you see errors in the Device Manager associated with fastboot I certainly would not be attempting any operation from the PC until you get that resolved. Note there is a huge difference between "unknown device" and a device showing errors - the latter suggests that the OS is aware of a driver which is supposed to be loaded when the tablet shows up on the USB bus, but then some malfunction occurs. That malfunction could either be hardware or an inappropriate driver.
Drivers
http://www.asus.com/Tablet_Mobile/Nexus_7#support_Download
http://forum.xda-developers.com/showthread.php?t=1426502
Note that you should be able to use the Asus driver for every mode of your Nexus 7 (except MTP and PTP, which are handled by Windows generic class drivers), including your custom recovery by doing the following:
A) Download the Asus Driver and unzip it someplace.
B) make a backup copy of the "android_winusb.inf" file (for instance "android_winusb.inf.backup")
C) Open up the "android_winusb.inf" file with the Notepad program (Note: not Wordpad!)
D) Find the ";Google Nexus 7" stanza in the [Google.NTx86] section and add this line:
%CustRecoveryADBAdbInterface% = USB_Install, USB\VID_18D1&PID_D001&REV_9999
E) Add the same line (step D above) in the [Google.NTamd64] section
F) At the very bottom of the file in the [Strings] section, add the line
CustRecoveryADBAdbInterface = "Nexus 7 Custom Recovery ADB Interface"
G) Save the file and then proceed to do a manual de-installation of the drivers for fastboot and ADB.
H) Disconnect from the internet and then re-install the Asus driver for fastboot and ADB using the "Choose Location" method.
Don't know if that will work, but it's something to try; the problem you are having might lie outside the scope of what all of the above deals with
good luck

Unfortunately, you're method didn't work. However, it did lead me to another solution and seems like everything is working beautifully now.
I do appreciate your help. Hopefully, your solution will work for others.
Thank you!

Rovon said:
Unfortunately, you're method didn't work. However, it did lead me to another solution and seems like everything is working beautifully now.
I do appreciate your help. Hopefully, your solution will work for others.
Thank you!
Click to expand...
Click to collapse
Please describe what you found out and what DID work for you. Even if it was just a simple mis-understanding. It might help others in the future.
Probably you should also alter the title of your thread to be something much more descriptive - and add the keyword "[SOLVED]" to the title as well.

[Q] Nexus 4 recognised as qualcomm device 'bricked'

Hi all, I posted several questions in the Nexus 4 Q&A thread but the situation has gone from bad to worse so decided it would be easier to just create my own thread...
This started off with being unable to boot the phone into the OS, Fastboot and Recovery mode were both accessible although wiping the cache failed to do anything it just returned unable to mount cache errors.
I then attempted to unlock the bootloader so I could load a custom recovery and try repairing, however upon selecting "yes" to unlock the phone the screen flashed the fastboot screen up then went blank and has stayed blank since, all I get now is a qualcomm usb device detected when I plug it in.
Installed Qualcomm drivers and the phone is recognised as being in download mode in QPST but from what i've read on this site so far it seems no one has been able to unbrick a Nexus 4 using QPST?
I read the unbrick guide using LGNPST, the software recognises a device being connected but it keeps prompting that the phone is off or unplugged even though windows is still detecting it as plugged in (qualcomm device detected, no noise for device unplugged etc).
Finally if I hold down vol-/+&power when connecting the USB lead the red LED comes on (solid) for about 3 seconds.
Do I have any option other than RMA?