[CSC Armbian for RK3318/RK3328 TV box boards]

@jockI am happy to contribute to the community. Here I am still trying to find a way to revive my box.

[CSC Armbian for RK3318/RK3328 TV box boards]

@jock Is the multitool backup image functional ?

[CSC Armbian for RK3318/RK3328 TV box boards]

 

@ fabiobassa

You can be sure about the resistor. This method is interesting, but I don't have an oscilloscope to try. Just a multimeter that measures low frequencies.

[CSC Armbian for RK3318/RK3328 TV box boards]

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I mean: did you try again, after bricking the board, to run the multitool from sdcard?

 

No, I got Multitool backup files, dtb, dts, Android Tool Image before bricking when original Android yet was installed. This links are with this files.

Multitool don't work more after bricking.  Now here show red led, no more blue led blinking and no image to TV/Monitor (hdmi) when power on tv box using Multitool on SD card.

 

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You need a serial adapter (USB-to-TTL or RS-232-to-TLL) for that, boards usually have debug serial pads in rows of 3 of 4 holes where the serial adapter wires can be soldered to send and receive characters.

Looking at the board photos, I think the four vertical pads in the left-bottom corner of the first photo are probably the serial pads. Commonly they are GND, Tx, Rx and 3v3, but the order changes. 3v3 must not be used, but if you connect the adapter GND to the GND of the board, Rx of the adapter to Tx of the board and Tx of the adapter to Rx of the board you can send and receive message on your computer. This is pretty a must have.

 

It must be a few days before I get one. In the meantime, I'm going to look for it and maybe someone got it and posted it somewhere how to force maskroom mode. Thanks.

 

[CSC Armbian for RK3318/RK3328 TV box boards]

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Did you try to put the multitool on a sdcard and try to boot it? If the bootloader you installed on eMMC is corrupted, the SoC will try to boot from sdcard (but not USB) and the multitool will allow you to recover or install armbian again.

 

Yes. I did here on this link a Multitool backup image and resend Android Tool image again but I don't know if it work.  The mmcblk2boot files I get with dd command.  The dtb and dts files (don't works here) I got using Termux on Android. I don't know if this will interest you.

 

 

 

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If the multitool does not boot, I'm afraid your only option is finding the eMMC clock pin and shorting it to ground to force maskrom mode. I have no such board, so I have no experience with that unfortunately.

 

I soldered a wire to the ground and placed a 1k ohm resistor on the other end to look for the eMMC clock pin. I don't know if I should use a lower value to be able to find it. But my concern is to cause a short and burn some port on the chip. I don't know what the technique is to look for

 

 

 

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If you have a serial adapter it may be worthy connecting it to understand what's going on.

 

 

 I don't know this method. You could put a link here showing how I should proceed to achieve this. 

 

 

 

Edit: Include comment about mmcblk2boot, dtb and dts files.

 

[CSC Armbian for RK3318/RK3328 TV box boards]

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Yes it is a known problem of lightdm. A couple of posts above @kruzer suggested to do an upgrade of the package. If you are able to run apt update && apt upgrade this issue will probably be fixed.

Thanks for this tip !!!

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Anyway I'm very glad the image works for you. If you have the chance to post some photos of the board and have a link to the original firmware would be great for better support.

Don't forget ro run rk3318-config too.

 

I have the firmware image here that I extract with the Android Tool:

 

After that, my device bricked yesterday, when I tried to put the RK3328 firmware.  ... I did a stupid method !!!

 

Now I can't get it to be recognized by USB, even if I press the button with the toothpick inside the AV connector.

 

I took some pictures of the pcb and as it only has a badge chip, I can't do the EMMC pin to force the Maskroom mode. I didn't find anyone who did this for this box. I'm a little lost.

 

 

 

 

 

[CSC Armbian for RK3318/RK3328 TV box boards]

I have a Q2 Mini Rk3318 box and installed this image: Armbian 21.08 - Ubuntu Focal desktop [xfce] - mainline kernel 5.10.34.

 

It works well on the first boot, but when doing the second boot, the system starts and before loading the desktop it is in black screen with the blinking cursor in the upper left corner.

[Armbian for TV box rk3318]

I tried this 2 dtb files and i get only a led blue blinking ... but this multitool  link showed above boot normally

 

 

 

[Armbian for TV box rk3318]

You are right. The other link below also contains the roms.

 

Thank you.

[Armbian for TV box rk3318]

hi @lucky62 !!!  the link to Arbiam image is broken. Can you suggest another link? 

[RK3318 device (Magicsee N5 Nova 4g/64g) with dead NAND]

@LambertI imagine you share the step by step how you managed to install Armbiam. I read everything but only managed to make the multitool work on my Mini Q2 - rk3318. Please help me !!!