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Any help on Pioneer XDP-300R bootloop ?

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By grogcw, Junior Member on 4th February 2019, 12:33 PM
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Hi !

I've attempted to deal with the devil by trying to root my Pioneer XDP-300R resulting in a bootloop problem (device is stuck on "Powered by Android" screen).

I attempted to flash a boot.img for a Onkyo DX-P1 (which is the same firmware), and still I haven't progressed.

No firmware, update or imgs are provided on Pioneer's website.

I still have access to fastboot (OEM is LOCKED, so I can't boot TWRP and such) in bootloader mode and adb push (no shell) in recovery mode.

Do you guys have any idea how to sort it out ?

Edit :
I managed to make my device go into Qualcomm's emergency download mode.

Here's how to :
1 - Make sure the device is completely off and unplugged from USB.
2 - Install QPST V2.7.474 (not enough posts to share url, but I can PM it).
3 - Install QDLoader Drivers (same as #2).
4 - Simply press and hold the "Play" button while connecting it to your computer, the device manager should see a "Qualcomm 9008 port" listed in Ports while the player's screen stays black.
5 - Do the Carlton (important step !)

Now, if anyone possessing a FUNCTIONAL AND ROOTED Pioneer XDP-300r is reading this and willing to help, can you get in touch with me ?

Together, we could manage to save all the other devices from soft-bricking.

All I would need from you is some time, hard disk space and patience to sort it out.


Please <insert_your_name_here>, you're my only hope !

Edit #2 :
Thanks to minotauri's great help, we managed to get a FULL rom backup, split the partitions to files and generate all the files needed for QFIL.

ErrOzz has been given access to this, hoping that he'll try it out soon.

If that works, I'll link you the files and write the walkthrough to bring you DAP back to life.

minotauri's contributions are not in rest tho, he managed to also successfuly patch TWRP for the device, so anyone can securely flash things from there now.

For anyone reading this thread : you're not the only one who screwed things up, we did too but we might have the cure. Hang in there !
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16th February 2019, 08:53 PM |#2  
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Quote:
Originally Posted by grogcw

Hi !

I've attempted to deal with the devil by trying to root my Pioneer XDP-300R resulting in a bootloop problem (device is stuck on "Powered by Android" screen).

I attempted to flash a boot.img for a Onkyo DX-P1 (which is the same firmware), and still I haven't progressed.

No firmware, update or imgs are provided on Pioneer's website.

I still have access to fastboot (OEM is LOCKED, so I can't boot TWRP and such) in bootloader mode and adb push (no shell) in recovery mode.

Do you guys have any idea how to sort it out ?

Edit :
I managed to make my device go into Qualcomm's emergency download mode.

Here's how to :
1 - Make sure the device is completely off and unplugged from USB.
2 - Install QPST V2.7.474 (not enough posts to share url, but I can PM it).
3 - Install QDLoader Drivers (same as #2).
4 - Simply press and hold the "Play" button while connecting it to your computer, the device manager should see a "Qualcomm 9008 port" listed in Ports while the player's screen stays black.
5 - Do the Carlton (important step !)

Now, if anyone possessing a FUNCTIONAL AND ROOTED Pioneer XDP-300r is reading this and willing to help, can you get in touch with me ?

Together, we could manage to save all the other devices from soft-bricking.

All I would need from you is some time, hard disk space and patience to sort it out.


Please <insert_your_name_here>, you're my only hope !

Hi - I saw your post on Head-Fi (antdroid over there). Let me look into this!
17th February 2019, 08:01 PM |#3  
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Here is a bunch of system dump images and qcn files: https://drive.google.com/drive/folde...usp=drive_open
18th February 2019, 09:32 AM |#4  
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Hello.
How can I write boot from qdload 9008 state?
18th February 2019, 12:05 PM |#5  
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Hi !
From the edl / qdload 9008 state, you can't afaik.

Here's how I think you can :

1 - Unplug your device from USB and power it off from whatever state it is.
2 - Power it on pressing Power + Previous button (keep holding, you should be "stuck" on the penguin logo).
3 - Connect your USB.
4 - Check that you have a Android ADB Device in your device manager (install drivers manually if you have an Unknown device).
5 - Grab any fastboot from the internet if you don't already have it (I'll PM you my gdrive, it's there for exemple).
6 - From CMD, go to fastboot directory. (cd <my_folder_with_fastboot>).
7 - Type in : fastboot devices
If fastboot sees your device, you're on the good path, else, check your driver / connection / reboot to fastboot "penguin" state.
8 - Type in : fastboot oem device-info
If it replies
(bootloader) Device unlocked: true
among others, you're in a good, good way, else, you're screwed by now, but we are working on it.
9 - If all the precedent are fulfilled type :
fastboot flash boot <my_boot_image.img>
10 - Mandatory Carlton.

I hope you'll be in the right path all the way, if you're stuck somewhere or if your bootloader is locked, please let me know.

Cheers !
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22nd February 2019, 03:26 AM |#6  
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Quote:
Originally Posted by ErrOzz

Hello.
How can I write boot from qdload 9008 state?

I was successful in creating a recovery (twrp) for this device.

https://www.antdroid.net/2019/02/pio...overy.html?m=1

also created a XDA thread here: https://forum.xda-developers.com/and...layer-t3902949

Feel free to PM me if you have questions or we can work it through here
27th February 2019, 04:16 PM |#7  
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Hi,
I have the same problem. I am able to get qdload 9008 state from here now. However, after unplug and followed grogcw's hints, the device is not recognized again. Also, the device hasn't ennobled debug mode before too. All the adb and fastboot commands return no device.

Hopefully can get more help here.

---------- Post added 28th February 2019 at 12:16 AM ---------- Previous post was 27th February 2019 at 11:58 PM ----------

Quote:
Originally Posted by minotauri

I was successful in creating a recovery (twrp) for this device.

https://www.antdroid.net/2019/02/pio...overy.html?m=1

also created a XDA thread here: https://forum.xda-developers.com/and...layer-t3902949

Feel free to PM me if you have questions or we can work it through here

Is there anyway to flash TWRP and so with QDLoader?
27th February 2019, 07:04 PM |#8  
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I believe he is on vacation for another week and half. If you haven't enabled the bootloader unlock option within Android, then my recovery method may not work since it may not let you flash the recovery.

You can try to fastboot boot recovery.img though
12th March 2019, 10:18 AM |#9  
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Hi ! I'm back from vacation, but I still haven't my device around.

Any user willing to test are welcome to reply or PM me !

Let's have all the bricked units working, shall we
2nd April 2019, 07:19 PM |#10  
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Quote:
Originally Posted by grogcw

Hi ! I'm back from vacation, but I still haven't my device around.

Any user willing to test are welcome to reply or PM me !

Let's have all the bricked units working, shall we

How can we get started?
3rd April 2019, 08:02 AM |#11  
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We actually did start probing stuff around, and we are missing something in the "full restoration process", so we're stuck for now.

Sahara protocol still is a mystery for us, and we can't get pass an error.
I think we don't actually have the right programmer_firehose.mbn for our device, but if it's not this, I'm basically out of ideas. (we might need an "QFIL expert" on this)

I still don't have my device around and feeling dumb about this.

Anyway, all the files and tools required to try probing around are in my gdrive and I can PM the link (as I still can't post it right away) if anyone is interested.

Thanks for trying to help or actually help everyone !

Cheers !
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