[Ddrmemory Card Rcovery Version 5412 Full Version
Gifford Brickley
Good evening everyone and thanks in advance for any help or advice you can give me.
I have two RK3318 TV Boxes, officially they are model A95X R5, which have a different motherboard, but apparently identical in terms of components and the exact same Android firmware loaded on them.
On both I still have the same old version of Armbian installed and perfectly running, compiled and adapted in 2021 on Buster distro kernel 4 (everything working apart from wifi and some specific leds), sharing the same dtb and the same system configuration and loading using the old uboot.img and trust.img method.
Due to the need to start over with a more updated version of kernel and OS I tried to compile a more recent release based on current Bullseye kernel 5.15 and here the difficulties begin.
On the first board (the green one), which I've always used for preliminary tests, no problem and I was able to start everything strictly necessary right away with just a few modifications to the dtb rk3318-box.dtb.
On the second board (the blue one) I can't start any build I tried to compile. The box remains stucked with the screen off, without anything being loaded. If I re-flesh Android it works, if I try to boot from a SD / flash the old system works. I had no results neither trying booting from SD (with both eMMC erased and the old Armbian flashed) nor from the eMMC using the Multitool (I had to unbrick the memory at least a dozen of times till now). The biggest difficulty arises from the impossibility when it comes to check trough the serial port what is happening on the board during boot process, as the SMDs have not been set up on the blue model to make the port work.
I know that with so little information it is not easy to investigate and understand the source of these issues, but would you have any idea what could be the cause of this strange behavior of the board? There is something I'm missing?
Thanks in advance for any suggestions
First of all, you should use one the included overlays suitable for your board to get better functionality using rk3318-config script. If I remember correctly, there should be an overlay for a95x board (but I can be wrong) with everything already in place.
About the missing boot from the second board and inability to do debugging via serial port, it looks to me the missing SMD components you are referring to are very near the serial pads. Usually those components are small resistors, you can get the serial functionality just shorting them in place of the resistor and you will ready to go.
I have half an idea about the bad behaviour of the rk3328_f2 board that can be related possibly to the ddrbin command rate or frequency rate: in some cases, the 667 mhz frequency at startup is not happily accepted by some boards. Since you're pretty able to compile your own images, you may try changing the ddrbin in this file with the 333 Mhz version (just swap 666 with 333) and try again.
PS: the big plastic package near the ethernet port is not a chip, it is a set of coils (a transformer, actually) to raise/reduce voltage to transmit and receive the signal over the wire. The real fast ethernet LAN controller is inside the SoC
For the leds, I'll see as soon as I can start the blue card too. Both boards have a small display in front, which I was able to get working at the time by modifying the dtb, and a multicolor led bar above, which I never managed to get working. The two classic red and blue LEDs are present only on the green board and already worked with the original dtb on the old Armbian build.
Both with the SD created yesterday with the standard compiler configuration resulting in a board freeze. The same memory always boots without any problem on the green board and also boots on another box I have which instead has a rk3328 (obviously without working peripherals there, only fot test).
Hey folks. I've been struggling a bit with an X88 Pro 10 I have. I'm able to install Armbian with the Multitool but only the 22.05.0 Jammy current 5.15.35 XFCE image because the file size is 4.3 GB. More recent versions the file size is 6.9GB or more and I can't fit the image on the Multitool partition.
I have tried to use the rkdeveloptool with the instructions given to install directly to eMMC and it succeeds but then the box doesn't boot unless I flash the specific version mentioned above, anything newer won't boot.
@mikes123 Hello, first of all you need to choose led-conf2 from rk3318-config to enable the proper led/gpio configuration for you X88 Pro board, then reboot. This is an essential, one-time only configuration that you should not change later for any reason.
@mikes123 Actually I don't know what is going on with your wifi: the chip is detected regularly and the firmware is correctly uploaded. If you tried swapping the nvram as suggested and still does not work, honestly I don't know what else can be. Perhaps you could extract the firmware and nvram from your original firmware and try them.
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