[DEV] Find the APX mode - Acer Iconia A500

In order to flash a custom recovery we need to find out IF there is a apx mode for the A500 and HOW to get into this mode.
apx mode would furthermore help to restore our tablets if things are borked.
EDIT: This describes how to get there: http://forum.xda-developers.com/showpost.php?p=13629976&postcount=155

the thing with apx mode is that on some tablets its needed to hold both volume buttons to get to apx mode and on a500 acer made this physically impossible, could be locked behind this issue...

the question is if it may be forced in another force like an adb reboot command.
samsung devices have adb reboot download as command for the odin interface.

BUMP: http://forum.xda-developers.com/showpost.php?p=13629976&postcount=155
APX Mode seems to be found

When he says "the right driver" he means the same one I use to adb shell into the device? Or a different one? I can't remember how it was with my gtablet.

Related

[Q] blackthund3r APX flash tool

When using the blackthund3r APX flash utility tool the acer usb boot recovery driver disappears when entering download mode bootloader.
shenny585 said:
When using the blackthund3r APX flash utility tool the acer usb boot recovery driver disappears when entering download mode bootloader.
Click to expand...
Click to collapse
Maybe because it's entering APX mode?
Do you have errors? Display goes black?
When going to APX mode, your display will be black, and you will see your PWR button white.
blackthund3r APX flash tool
I get no errors
Yes,display is black in the apx mode
Yes,the power is white
I has bee being trying this for three days, with no luck
I am having the same problem. It shows that it is in APX mode, but it won't go into bootloader.
Dear all,
The biggest cause for error here is your USB drivers. It sounds like the same old thing but trust me - like ~60% of the issues caused are by the lack of Acer Drivers or Windows giving the tablet a generic USB Composite Device driver as opposed to an ADB Driver and sometimes it doesn't pick up the APX Driver and give it the recovery one etc.
Check this and see what happens in device manager when the app stops working and you should see what devices are connected (you may have to refresh first)

[Q] A500 not detectable in APX mode??

I'm trying to debrick A500 with a WinXP PC.
It can be detected by the PC as "MTD device". Installed the Acer driver for it (not sure what it does).
It can enter the APX mode, detected by the PC correctly, and installed the APX driver "Universal_Naked_Driver_0.72".
But, adb devices does not detect it, so cannot move further to PBJ20upgrade.exe and so on.
What does this mean? Bricked beyond repair?
- dd
ddbug said:
I'm trying to debrick A500 with a WinXP PC.
It can be detected by the PC as "MTD device". Installed the Acer driver for it (not sure what it does).
Click to expand...
Click to collapse
I'm assuming that you mean MTP (Media Transfer Protocol)?
I'm assuming this means that you are booting Android as I'm not aware of the device being represented as anything but an APX device (0955:7820) if you do not.
What is the problem?
ddbug said:
It can enter the APX mode, detected by the PC correctly, and installed the APX driver "Universal_Naked_Driver_0.72".
But, adb devices does not detect it, so cannot move further to PBJ20upgrade.exe and so on.
Click to expand...
Click to collapse
When in APX mode Android is not loaded so you cannot use ADB (Android Debug Bridge). It should not really matter as, from what I recall, PBJ20upgrade will only use ADB to reboot the device into AXP mode.
Thank you eppeP,
Yes, it was MTP.
So I'll try to proceed with PBJ20upgrade.
(am away now for a week or so ... )
-- dd

Driver recognition problem

Hi
As many people here i've encountred a problem with fota while being using a rooted ROM (g.lewarne ROM)
Now my phone is bricked. I can't go into recovery nor Download mode. I only have the LG logo for moments with error: secure booting error!
cause: boot certification verify
When i plug my phone it is not recognized in the hardware manager. I've already installed Drivers.
All i have in the hardware manager is a new hard under name QHSUSB_BULK that needs driver.
I have just one hope to get my phone alive, by reconizing it again by my computer, then maybe i can go under download mode.
I've tried everything but nothing could work without download mode.
PS: I've made a hard reset, which was maybe a silly decision.
By the way, after installing the OTA my phone went into CWM Recovery, it was detectable by adb, i used adb to reinstall TWRP, then i used command
"adb reboot download" instead of "adb reboot recovery", then i had never seen the CWM recovery again, only the mentioned above error.
After few seconds my phone screen goes black but the phone is still on since i can see light at the corners of the phone.
and it is not reachable by adb.
It makes me crazy now.
once i plug it to the computer it gives me plenty drives to format and one drive with only one folder inside called image, only readable, with many files inside.
Could you please help me to get my phone alive?:crying:

How to retrieve data without debuggin mode activated and broken display

Hello,
First of all I read all topics regarding this issue and I'm using Windows as my operating system (no linux/unix). I do not consider my phone to be "bricked", just it has the display broken.
My problem is I cannot make the device available when issuing the adb device command, in adb, although I ran all steps (read the hole 72 pages from [TOOL] [WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer v1.4.3 ), maybe it's related to not having activated before the screen damage the debugging mode.
If I start the phone normally I can hear it when connecting it to computer and also it is shown in device manager, under "Portable device".
I read a thread in which someone gave a hint to similar issue, by flashing the stock image to one "CWM Recovery v6.0.3.6.tar" file - which I did, using ODIN (v.307), where I can see my device mapped at some COM port, but after successfully flashing I expected to have my device showed in "adb device" command, but I don't.
Also I tried using the drivers from above topic, the ones from Samsung (which allowed me to use ODIN and successfully flash), I'm using the up volume key after booting in order to put Samsung device in "download mode", but still...I'm not able to see it under adb (because I want to use it to retrieve files).
Is there anything else I can try? As long as I can successfully flash, isn't there an image with debugging mode on? For now I think this is the only "variable" which I'm not able to alter, as I do not have the display.
Many thanks,

Axon 7 EDL Mode Not Working/ can't boot to EDL

My Axon 7 is the A2017U, i had the B32 Nougat running on it and wanted to try the new lineageos 15.1, but had to unlock my bootloader first i used the toolkit like I've done in the past and was able to unlock it and flash twrp, when i try to boot it back on it goes to factory testing mode, i was able to get into twrp and i wiped everything and it stopped the problem of booting directly to FTM but after that i tried to go into EDL mode and it seemed to try to enter the mode but the red led indicator light stays on rather than doing a quick blink. its no longer picked up as a COM port, when i enter fastboot mode adb doesn't seem to work and I'm unsure what to do or if I'm out of luck. Thank you for your time and the advice and help you guys are able to provide.
use ADB
Enable ADB in developer options
use command "adb reboot edl"
Used Twrp to flash Custom ROM, EDL still not fixed
sauerkraut17 said:
use ADB
Enable ADB in developer options
use command "adb reboot edl"
Click to expand...
Click to collapse
I had no OS installed, only twrp recovery and I was able to unlock my boot loader. I tried to flash Lineage-OS ROM in twrp and didn't have much luck because i would get an error code saying it wasn't compatible with my phone and had to go into the ROM files and edit the updater-script file to remove the compatibility check.
In the end I have a working phone with a custom ROM but EDL mode is still not responsive and seems to freeze my phone as soon as I press the 3 buttons to get into EDL. the notification light blink remains on so ill take it as an indicator that something is wrong with the firmware that it uses. i still want to fix it so EDL can be used but unsure how to fix it. I did some researching and was wondering if using a deep flash Engineering cable would work to fix the EDL mode and any other problems that could be there.
levittc5280 said:
I had no OS installed, only twrp recovery and I was able to unlock my boot loader. I tried to flash Lineage-OS ROM in twrp and didn't have much luck because i would get an error code saying it wasn't compatible with my phone and had to go into the ROM files and edit the updater-script file to remove the compatibility check.
In the end I have a working phone with a custom ROM but EDL mode is still not responsive and seems to freeze my phone as soon as I press the 3 buttons to get into EDL. the notification light blink remains on so ill take it as an indicator that something is wrong with the firmware that it uses. i still want to fix it so EDL can be used but unsure how to fix it. I did some researching and was wondering if using a deep flash Engineering cable would work to fix the EDL mode and any other problems that could be there.
Click to expand...
Click to collapse
EDL using the volume/power button has issues with the newer bootstack (which it sounds like you're on). However, since you have an OS now do as I recommended. It will 'reset' the EDL and once done via ADB command it will work with the volume/power buttons like it did before moving forward.
sauerkraut17 said:
EDL using the volume/power button has issues with the newer bootstack (which it sounds like you're on). However, since you have an OS now do as I recommended. It will 'reset' the EDL and once done via ADB command it will work with the volume/power buttons like it did before moving forward.
Click to expand...
Click to collapse
Using the ADB command i was able to get into EDL mode and it was able to get a COM port. using the volume + power buttons had the same problem. Would using an older bootstack fix it?
levittc5280 said:
Using the ADB command i was able to get into EDL mode and it was able to get a COM port. using the volume + power buttons had the same problem. Would using an older bootstack fix it?
Click to expand...
Click to collapse
Have the same issue as you do after installing the bootstack. but even with the adb reboot edl command my phone just restarts normally.. But my OS is working fine, is there any way?
Try to use volume up and volume down only and plugging in USB cable........
stinka318 said:
Try to use volume up and volume down only and plugging in USB cable........
Click to expand...
Click to collapse
Tried everything already. Can only get to DFU mode..
So, I have a similar problem: after flashing a new version of TWRP, now Recovery doesn't start. The problem is that I haven't any OS installed and the last chance to save the phone should be reflash stock by EDL... BUT EDL mode doesn't start if I press vol UP + vol DOWN during power on... (it became black with a red light, but if I digit "ADB devices" on ADB, no devices seems connected, and in the same way it's impossible to use Axon7Toolkit). So: no Recovery, no EDL mode, no OS installed, my phone is a paperweight.
Is there a method to save my Axon 7?
Here is something to try ...
Enter edl via button combo (volup + voldn + pwr)
You should have a black screen ...
Now plug your phone into the cable on your PC/laptop ..
If your PC / laptop doesn't recognise your phone via Miflash or app you are using ...
Try tapping the power button once ...this seems to open/close the port ...
I noticed this when I was using edl mode to flash a ROM
I hope this helps
levittc5280 said:
My Axon 7 is the A2017U, i had the B32 Nougat running on it and wanted to try the new lineageos 15.1, but had to unlock my bootloader first i used the toolkit like I've done in the past and was able to unlock it and flash twrp, when i try to boot it back on it goes to factory testing mode, i was able to get into twrp and i wiped everything and it stopped the problem of booting directly to FTM but after that i tried to go into EDL mode and it seemed to try to enter the mode but the red led indicator light stays on rather than doing a quick blink. its no longer picked up as a COM port, when i enter fastboot mode adb doesn't seem to work and I'm unsure what to do or if I'm out of luck. Thank you for your time and the advice and help you guys are able to provide.
Click to expand...
Click to collapse
I had the same problem a few days ago. When I booted to EDL Mode the red led was instantly on but the PC recognized it somthing like ZTE Handset Device Mode.
1. You can download TWRP Treble by NFound and flash it via your TWRP. Then reboot to recovery again and under the reboot tab its possible to boot to EDL/9008 Mode.
2. You build a EDL Cable to get the device from the red light to EDL mode. Just open some usb cable and connect the green and black (all four) together, plug it in the device and press the power button
until the red light is gone and hold on two additional seconds. Then remove the cable and plug another working cable in and the PC recognize it as Qualcomm in EDL mode.
This is literally how I unbricked my device.
Syberclone said:
Here is something to try ...
Enter edl via button combo (volup + voldn + pwr)
You should have a black screen ...
Now plug your phone into the cable on your PC/laptop ..
If your PC / laptop doesn't recognise your phone via Miflash or app you are using ...
Try tapping the power button once ...this seems to open/close the port ...
I noticed this when I was using edl mode to flash a ROM
I hope this helps
Click to expand...
Click to collapse
Thanks, I tried but this doesn't solve my problem. The strange thing is that connecting my phone in EDL mode, the phone appears in device manager as COM port, but is not seen launching an "ADB devices" command and is not seen in MiFlash too. I tried to change drivers from "ZTE device (something)..." to "Qualcomm HS-USB QDLoader 9008" and in this way, although ADB doesn't detect nothing yet, MiFlash detects a COM port, but flashing an EDL image still fails with a "cannot receive hello packet" error.
Now I ordered a deep flash cable, hope this can solve... next week I'll know if it works.
Thanks, I tried but this doesn't solve my problem. The strange thing is that connecting my phone in EDL mode, the phone appears in device manager as COM port, but is not seen launching an "ADB devices" command and is not seen in MiFlash too. I tried to change drivers from "ZTE device (something)..." to "Qualcomm HS-USB QDLoader 9008" and in this way, although ADB doesn't detect nothing yet, MiFlash detects a COM port, but flashing an EDL image still fails with a "cannot receive hello packet" error.
Now I ordered a deep flash cable, hope this can solve... next week I'll know if it works.
Click to expand...
Click to collapse
Did you resolve problem?
spasacamen said:
Thanks, I tried but this doesn't solve my problem. The strange thing is that connecting my phone in EDL mode, the phone appears in device manager as COM port, but is not seen launching an "ADB devices" command and is not seen in MiFlash too. I tried to change drivers from "ZTE device (something)..." to "Qualcomm HS-USB QDLoader 9008" and in this way, although ADB doesn't detect nothing yet, MiFlash detects a COM port, but flashing an EDL image still fails with a "cannot receive hello packet" error.
Now I ordered a deep flash cable, hope this can solve... next week I'll know if it works.
Click to expand...
Click to collapse
No need to order that cable... If you still can cancel it i'd tell you to do that. You made a mistake by changing the drivers, you had the "ZTE Handset Diagnostic Interface (DFU)" driver, and replaced it with the EDL driver.
This of course does not work because your phone is in DFU MODE instead of EDL. What you have to do is uninstall the device via device manager and also tick "Uninstall driver software for this device", then turn the phone off and enter DFU again, and then use MultiDL from this forum to enter EDL. After that, use MiFlash or EDL Tool, and try flashing a FULL EDL file
By the way ADB will only work on FTM mode or the recovery or on a working system. You won't get ADB on edl mode or dfu mode because they simply don't have adb working, it's normal
i never use xda but this quote thing is what i have aswell
levittc5280 said:
Using the ADB command i was able to get into EDL mode and it was able to get a COM port. using the volume + power buttons had the same problem. Would using an older bootstack fix it?
Click to expand...
Click to collapse
all i see is the red light in edl, whatever i try it Always just goes to a red light and a black screen. this happened after trying to unlock the bootloader. i was in android 8 and tried to lock it, it messed it up as my Phone could not boot anymore, i flashed the stock android 6.0 or something that came with the axon 7 toolkit and it did work but when trying to unlock the bootloader as the device state suddenly was locked it broke the whole thing and i oped edl could save me but even that is broken just like what the person in the quote has
Well the only fix to get EDL mode is through test point, there's a thread of unbricking Axon 7 using test point, find it, you'll need to open your back cover to do this
This in case nothing works to get into EDL mode.

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