PX5 stuck in bootloop

I

InTheWorks

Member
Dec 28, 2018
10
1
0
Jan 7, 2019 at 5:41 AM
Does anyone know why I can't fastboot boot.img?

Some background. I couldn't find any way to backup my ROM using linux tools. So I downloaded the ROM extracted from this thread and pulled out boot.img.

I then did:
Code: 
adb reboot bootloader
fastboot -i 0x2207 boot boot.img
The unit responds with:
Code: 
downloading 'boot.img'...
OKAY [  0.599s]
booting...
OKAY [  0.000s]
finished. total time: 0.599s
But the unit never boots.

I have a permanent usb otg connection on my unit. The usb lines from the SOM are disconnected from the usb hub. I can see a bunch of bad usb activity in dmesg after the fastboot command:
Code: 
[282266.786283] usb 3-2: New USB device found, idVendor=2207, idProduct=0006
[282266.786296] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[282266.786306] usb 3-2: Product: rk30xx
[282266.786313] usb 3-2: Manufacturer: Rockchip
[282266.786324] usb 3-2: SerialNumber: 0123456789
[282266.786800] usb 3-2: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes
[282266.786821] usb 3-2: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes
# the next part happens after fastboot command
[282291.166186] usb 3-2: USB disconnect, device number 5
[282291.878774] usb 3-2: new high-speed USB device number 6 using xhci_hcd
[282291.990868] usb 3-2: Device not responding to setup address.
[282292.194871] usb 3-2: Device not responding to setup address.
[282292.398775] usb 3-2: device not accepting address 6, error -71
I've tried everything I can think of. So I thought I would double check if boot.img from the oreo rom should be bootable in this manner.
 
S

SilentO

Senior Member
Jan 31, 2008
393
24
0
Jan 18, 2019 at 1:18 AM
Finally had the time to attend this however I still got USB device not recognized.

Attached is my setup.

PX5 2GB 16GB from Dasaita.

Im trying to recover the unit after a successful download using Android Tool but the HU does not turn on.
15:34:34 785 Android Tool v2.3.9.0 for android start run
15:35:57 082 Layer<1-3>:Test Device Start
15:35:57 097 Layer<1-3>:Test Device Success
15:35:57 114 Layer<1-3>: Download parameter...
15:35:57 445 Layer<1-3>: Download uboot...
15:35:57 924 Layer<1-3>: Download trust...
15:35:58 409 Layer<1-3>: Download misc...
15:35:58 923 Layer<1-3>: Download resource...
15:35:59 205 Layer<1-3>: Download kernel...
15:36:01 355 Layer<1-3>: Download boot...
15:36:04 040 Layer<1-3>: Download recovery...
15:36:10 099 Layer<1-3>: Download backup...
15:36:16 898 Layer<1-3>: Download security...
15:36:17 473 Layer<1-3>: Download system...
15:40:31 871 Layer<1-3>: Download metadata...
15:40:34 107 Layer<1-3>: Download vendor...
15:41:54 790 Layer<1-3>: Download oem...
15:43:16 667 Layer<1-3>: Download frp...
15:43:16 893 Layer<1-3>: RunProc is ending, ret=1
15:49:30 258 Android Tool v2.3.9.0 for android start run
16:13:37 603 Android Tool v2.3.9.0 for android start run

Red wire is 5.0v and when connected it's 3.9v
Orange is 3.3v and when connected it's 3.2v
Black is ground
White and green is data and when connected it's 3.18v

Sorry can anyone help me see what I'm doing wrong?

IMG_20190117_165550.jpegIMG_20190117_170148.jpegIMG_20190117_170138.jpegIMG_20190117_170911.jpeg

Sent from my Pixel 3 using Tapatalk
 
Last edited:
S

SilentO

Senior Member
Jan 31, 2008
393
24
0
Jan 18, 2019 at 3:18 AM
SilentO said:
Finally had the time to attend this however I still got USB device not recognized.

Attached is my setup.

PX5 2GB 16GB from Dasaita.

Im trying to recover the unit after a successful download using Android Tool but the HU does not turn on.
15:34:34 785Android Tool v2.3.9.0 for android start run
15:35:57 082Layer<1-3>:Test Device Start
15:35:57 097Layer<1-3>:Test Device Success
15:35:57 114Layer<1-3>: Download parameter...
15:35:57 445Layer<1-3>: Download uboot...
15:35:57 924Layer<1-3>: Download trust...
15:35:58 409Layer<1-3>: Download misc...
15:35:58 923Layer<1-3>: Download resource...
15:35:59 205Layer<1-3>: Download kernel...
15:36:01 355Layer<1-3>: Download boot...
15:36:04 040Layer<1-3>: Download recovery...
15:36:10 099Layer<1-3>: Download backup...
15:36:16 898Layer<1-3>: Download security...
15:36:17 473Layer<1-3>: Download system...
15:40:31 871Layer<1-3>: Download metadata...
15:40:34 107Layer<1-3>: Download vendor...
15:41:54 790Layer<1-3>: Download oem...
15:43:16 667Layer<1-3>: Download frp...
15:43:16 893Layer<1-3>: RunProc is ending, ret=1
15:49:30 258Android Tool v2.3.9.0 for android start run
16:13:37 603Android Tool v2.3.9.0 for android start run

Red wire is 5.0v and when connected it's 3.9v
Orange is 3.3v and when connected it's 3.2v
Black is ground
White and green is data and when connected it's 3.18v

Sorry can anyone help me see what I'm doing wrong?

View attachment 4688765View attachment 4688767View attachment 4688768View attachment 4688769

Sent from my Pixel 3 using Tapatalk
Click to expand...
Screwed up big time. Wrong pins but still can't get it to recognize the SOM.

Please helpIMG_20190117_191725.jpeg

Sent from my Pixel 3 using Tapatalk
 
M

marchnz

Senior Member
Nov 26, 2012
2,833
576
183
wombleton
Jan 18, 2019 at 3:37 AM
SilentO said:
Screwed up big time. Wrong pins but still can't get it to recognize the SOM.

Please helpView attachment 4688808
Click to expand...
Helpful detailed info, cheers.

Looks like the SOM successfully flashed, perhaps theres a problem with the headunit main board. SOM is looking good.

Once the SOM is back in place and all screws in, what voltages are seen at SOM supply and also ground points (continuity)?
 
S

SilentO

Senior Member
Jan 31, 2008
393
24
0
Jan 18, 2019 at 6:36 AM
marchnz said:
Helpful detailed info, cheers.

Looks like the SOM successfully flashed, perhaps theres a problem with the headunit main board. SOM is looking good.

Once the SOM is back in place and all screws in, what voltages are seen at SOM supply and also ground points (continuity)?
Click to expand...
5V at pin 1,2,3 but no voltages at pin 20 or 28.
0.5V at pins 29 and 30.

pins 1,2,3 have 0 ohm
pins 4,5,6 have 0 ohm

sorry but is there anything else that i can look at?

or is this dead?
 
Last edited:
S

SilentO

Senior Member
Jan 31, 2008
393
24
0
Jan 19, 2019 at 1:09 AM
SilentO said:
5V at pin 1,2,3 but no voltages at pin 20 or 28.
0.5V at pins 29 and 30.

pins 1,2,3 have 0 ohm
pins 4,5,6 have 0 ohm

sorry but is there anything else that i can look at?

or is this dead?
Click to expand...
installed the SOM back and reconnected to the car again.

pin 1,2,3 measured 5V
pin 4,5,6 is 0V =GND
pin 9 = 3.3V

really lost

if only i can get my computer to recognize the rockchip for me to flash the firmware.

appreciate any suggestions,
 
M

Migueliyo85

Member
Feb 19, 2019
13
1
0
Feb 26, 2019 at 10:22 AM
scorillo_ro said:
Tracking the MaskROM pads on the rev8.0 SOM I found that exposing the tracks between the PX5 processor and the eMMC is not necessarily needed for the rev4.0 SOM. Take a look at the attached pictures.
Click to expand...
I have a rev8.0 SOM. How can I enter to maskrom Mode?
first I do the short as shown in the photo and then connect the usb cable to PC?
 
T

tankgod82

Member
Jan 27, 2009
9
0
0
Feb 26, 2019 at 10:29 PM
Will any of this work on an FYT 6026 Board. I bricked mine and am unable to boot into recovery. It is mounted to an S200 main board. The unit is made by Rupse. Sold by several other companies. The Witson Model number is W2-222. Any help would be appreciated.

Link to photos: h**ps://photos.app.goo.gl/C1YaYLiC7WLASAK17
 
Last edited:
T

typos1

Senior Member
Apr 3, 2007
9,208
1,629
243
UK
Feb 26, 2019 at 10:49 PM
tankgod82 said:
Will any of this work on an FYT 6026 Board. I bricked mine and am unable to boot into recovery. It is mounted to an S200 main board. The unit is made by Rupse. Sold by several other companies. The Witson Model number is W2-222. Any help would be appreciated.

Link to photos: h**ps://photos.app.goo.gl/C1YaYLiC7WLASAK17
Click to expand...
I cant see anything that looks like an MTCD/E SoM inside your unit, so pretty certain its not an MTCD/E unit.

Deffo heard of FYT units, try searching the Android Headunits general forum fo FYT units.
 
T

tankgod82

Member
Jan 27, 2009
9
0
0
Feb 26, 2019 at 10:53 PM
typos1 said:
I cant see anything that looks like an MTCD/E SoM inside your unit, so pretty certain its not an MTCD/E unit.

Deffo heard of FYT units, try searching the Android Headunits general forum fo FYT units.
Click to expand...
Yeah I've been all over this forum trying to find it. I've also been trying to get the maker to help. They blocked me on Ebay, Blocked my emails and wont return phone calls. Yes, I've even called china.
 
K

krzychunh

Senior Member
Dec 18, 2009
65
9
8
Poland
Mar 1, 2019 at 10:39 AM
PX5_OTG_2.jpg

klaariskees said:
Thanks to the good work of the devs in this thread, I was able to recover my 4GB/32GB SOM. It was impossible to get in recovery and I wanted Oreo on my MM SOM.
I made the special USB cable and used it to low level format the SOM. After that I could (in maskrom mode) install Android 8 recovery.
Then I installed most recent Dasaita stock ROM. Everything works as far as I have tested, exept for USB connection. For the first time I have a good working Google Maps now!
But: after many times hctreboot and power down + boot again, I still have no USB.

The HU is a Dasaita V600 series and I realy want to have back the USB connection! Any suggestions on how I can do that?
Click to expand...
 
A

alt.d4c

Member
Apr 26, 2019
25
6
0
Apr 27, 2019 at 6:42 PM
scorillo_ro said:
Tracking the MaskROM pads on the rev8.0 SOM I found that exposing the tracks between the PX5 processor and the eMMC is not necessarily needed for the rev4.0 SOM. Take a look at the attached pictures.
Click to expand...
Hi. Can you confirm please that is the way to maskrom mode for this core board px5-rev4.0? Mine is identical same date even, but i don't see a short when i touch that point with the ground, nothing happens.
 
S

scorillo_ro

Senior Member
Jul 30, 2012
352
191
63
Bucharest
Apr 28, 2019 at 10:34 AM
alt.d4c said:
Hi. Can you confirm please that is the way to maskrom mode for this core board px5-rev4.0? Mine is identical same date even, but i don't see a short when i touch that point with the ground, nothing happens.
Click to expand...
You must short those points with the board not connected to the PC and continue to keep them shorted when you plug the USB for a few seconds, then release the short. The chimes should be heard after approximately one second and see one maskrom device found.
 
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A

alt.d4c

Member
Apr 26, 2019
25
6
0
Apr 28, 2019 at 11:08 AM
scorillo_ro said:
You must short those points with the board not connected to the PC and continue to keep them shorted when you plug the USB for a few seconds, then release the short. The chimes should be heard after approximately one second and see one maskrom device found.
Click to expand...
I tried with a rigid wire exatly to that points many times but is not entering in maskrom mode, first short the som than plug in the usb cable. Thank you.
 
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