[PX3 & 5] [OTG] - No Headunit Mod, recover or flash a SOM with a simple USB cable - FREE

[marchnz]

for px6 rockcip 3399 e60 how do i fix it? blocked on android logo please if you can help me ... thanks

Did you come here to build an otg cable and try, or plead for help. There are other threads to hijack if you can't self help.

 

[aurelmo]

for px6 rockcip 3399 e60 how do i fix it? blocked on android logo please if you can help me ... thanks

Did you come here to build an otg cable and try, or plead for help. There are other threads to hijack if you can't self help.

I need help, I tried all the hard reset options, I connected and the keyboard doesn't connect anything to it, not even the computer, what can I do? I'm going to attach a picture with the motherboard, can anyone know something, here are some free points, can I do a hard reset if I short them? Of course on my own responsibility..thanks

 

[marchnz]

for px6 rockcip 3399 e60 how do i fix it? blocked on android logo please if you can help me ... thanks

I need help, I tried all the hard reset options, I connected and the keyboard doesn't connect anything to it, not even the computer, what can I do? I'm going to attach a picture with the motherboard, can anyone know something, here are some free points, can I do a hard reset if I short them? Of course on my own responsibility..thanks

Not an MTCD unit, wrong forum, you'll need to figure out what you own and find the appropriate forum. Probably "Android head units"

 

[k3dar7]

Hi,
Sorry if this has answered before, but i not find it...
- i purchase PX6 coreboard for upgrading my Dasaita PX5 unit
- before place in HU a want make dump of existing ROM on PX6
- on PX6 coreboard is already USB port
1. Can be onboard USB use for dump, or is need using pins from header?
2. Is possible make dump with some GNU/Linux tool?
Thanks

edit: i have this px6 coreboard (paragraph A

 

[marchnz]

Hi,
Sorry if this has answered before, but i not find it...
- i purchase PX6 coreboard for upgrading my Dasaita PX5 unit
- before place in HU a want make dump of existing ROM on PX6
- on PX6 coreboard is already USB port
1. Can be onboard USB use for dump, or is need using pins from header?
2. Is possible make dump with some GNU/Linux tool?
Thanks

edit: i have this px6 coreboard (paragraph A

It's all in the first post.

 

[k3dar7]

It's all in the first post.

maybe "lost in translation" ;-) but:

1. about using USB onboard of coreboard i see nothing on #1

2. About dump/backup i see on #1 only this:
"This tool for dumping / getting full backup of SOM"
but, this is link to "rkDumper" => WINDOWS tool

 

[marchnz]

maybe "lost in translation" ;-) but:

1. about using USB onboard of coreboard i see nothing on #1

2. About dump/backup i see on #1 only this:
"This tool for dumping / getting full backup of SOM"
but, this is link to "rkDumper" => WINDOWS tool

1. Try it
2. Use rock chip tool Linux version to dump rom

 

[scorillo_ro]

maybe "lost in translation" ;-) but:

1. about using USB onboard of coreboard i see nothing on #1

2. About dump/backup i see on #1 only this:
"This tool for dumping / getting full backup of SOM"
but, this is link to "rkDumper" => WINDOWS tool

USB port ? Are you sure? Isn't it a mini HDMI port by any chance?

 

[k3dar7]

USB port ? Are you sure? Isn't it a mini HDMI port by any chance?

you right, is MiniHDMI ;-)

EDIT: add img...

 

[Xoberr]

Hi, I think I'm in the right thread .... The other day I created a sd to update from android 6 to android 8, I created an SD to update the system, I put it in the GPS slot and it was updated but it did not take me to recovery.
the radio is dead.
If I press the reset button the lights flash, if I leave it pressed nothing, if I press the button to turn on the radio the lights flash and nothing else, I cannot enter the recovery.
I have also tried to create an SD to restore android 6 but the SD reader does not respond The radio is an erisin mtcd kgl PX5, is it okay to do the thread procedure to try to resurrect the radio?
I speak Spanish. I'm using the google translator. Excuse me if you don't understand me well. Thanks

 

[Xoberr]

No one has answered me but I have continued ... I have created the cable and I only get an old laptop with windows XP operating system to detect it without problems, I enable maskrom mode, I try to put an update.img and it always gives me this error "test device fail" and I don't know what else to try

 

[scorillo_ro]

No one has answered me but I have continued ... I have created the cable and I only get an old laptop with windows XP operating system to detect it without problems, I enable maskrom mode, I try to put an update.img and it always gives me this error "test device fail" and I don't know what else to try

Try to erase flash and try again

 

[Xoberr]

Try to erase flash and try again

It won't let me either, it never goes past the "test device fail"

 

[Xoberr]

I have taken data of the voltages:
Positive + = at 4.92 volts.
Data +/- = at 4.95 volts.
The additional wires the orange of the resistors give 3.10 volts.
The cable will measure about 25 centimeters (I have read that some of you have shortened it. I have shortened it a lot but I don't know if to cut it more ... to try).
I have managed to get it to work for me on windows XP (32bits), 7 (64bits) and 10 (64bits) unicament in maskrom,But I am still stuck in the step of "TEST DEVICES FAIl" (tried to insert UPDATE.IMG or deleting the flash.
KGL PX5 REV 4.0.
@marchnz if you say that 100% have been recovered with maskrom, this cannot be less than the% is lowered, hahaha.
Thank you.

 

[marchnz]

@marchnz if you say that 100% have been recovered with maskrom, this cannot be less than the% is lowered, hahaha.
Thank you.

It might also mean you haven't yet followed the software side of the instructions, such as different versions or erased storage.

There's a chance that your storage device is bad, but I haven't had a single one.

No apologies for not walking though every step and reposting the same information, it's all here there. You might need to decide your investment of time vs. Replacing the SOM.

Of course, you can always send the SOM to me in NZ with return freight.

 

[Xoberr]

It might also mean you haven't yet followed the software side of the instructions, such as different versions or erased storage.

There's a chance that your storage device is bad, but I haven't had a single one.

No apologies for not walking though every step and reposting the same information, it's all here there. You might need to decide your investment of time vs. Replacing the SOM.

Of course, you can always send the SOM to me in NZ with return freight.

I've read the 47 pages haha, I've been like this for a few days, a few days it was the cable, another the drivers, now the test, I'll go crazy.
I already think that the plate is wrong ... for example: I am connected through maskrom and in android tools.
I go to the "advanced function" tab. If I give the options "readflashID" "readFlashinfo" "readIDB" and the rest they all give me FAIL, including reset device.
They should give me some information other than a right error?

 

[marchnz]

I go to the "advanced function" tab. If I give the options "readflashID" "readFlashinfo" "readIDB" and the rest they all give me FAIL, including reset device.
They should give me some information other than a right error?

Correct. You may find other suggestions from searching for rockchip recovery, but I suggest we've covered all scenarios here.

 

[Xoberr]

Correct. You may find other suggestions from searching for rockchip recovery, but I suggest we've covered all scenarios here.

They will leave me a px3 board, if I connect it to the otg, and for example I make a backup of the rom, I will understand that the problem is with the board and not with the cable.
If it gives problems, it will be the cable that fails somewhere.
In the event that it is the motherboard, which is the chip that would have been damaged?
If I knew what it is and find it online, they could replace it for me.

 

[bebokoo]

is this my problem, i can't get any further, it seems like a few maps are not being flashed.

 

[Mr.Jimbo]

Hi guys, firstly thanks for all the efforts that have gone into this, I'm asking for some advice for what I think is a dead PX6 board.

Symptom is that on applying power (12v) to the head unit, the buttons light up but the screen is blank (have checked with a torch there is nothing on the screen, nor on the HDMI out), so have tried recovery etc, nothing works.

I've tried to use OTG today on the board, using pins from the USB, and a 3.3v supply voltage to the two pins mentioned, as I don't have any resistors (but I do have a buck converter and a 12v supply) - nothing happens when I connect it or even try to connect with the maskrom pins shorted, the computer just doesn't see any devices. I connected the PSU earth to the earth pin on the SOM from the USB to ensure a common earth, measured +3.3v from GND to pins 12 and 16.

Is supplying the 3.3v from the cable using resistors critical? (I read earlier they are just to turn the SOM on, and it's simple voltage so I suspect not) or does this all suggest my SOM is dead?

I have a 76 pin SOM so am using the +4 pins (so starting with power on pin 5, rather than pin 1) as recommended in the PX6 maskrom thread and the 3.3 pins on the lower rail, but still nothing. I've shielded the USB pins with foil, checked the OTG cable continuity is good...

Anything else I should try before I think about buying a new SOM for it?

Thanks in advance.