DS218+ blue light (after fail update)

[majin]

Hi everyone, i'm new here and i'm looking for some help

I tired to update my Synology DS218+ recently, but since then, it won't boot up. The blue power led just keep flashing.
I'm trying to connect to putty with usb-ttl usb adapter to see boot log bu i'm no getting any output. I'm not sure if my wiring is correct. Currently, i'm using ping 2/4/6 on the motherboard header.

Does anyone know the correct pinout for the DS218+ serial header, or have advice on how to bring my NAS back to life ? Any help would be greatly appreciated

Sorry for my bad language...

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[ragnarok]

Hi everyone, i'm new here and i'm looking for some help

I tired to update my Synology DS218+ recently, but since then, it won't boot up. The blue power led just keep flashing.
I'm trying to connect to putty with usb-ttl usb adapter to see boot log bu i'm no getting any output. I'm not sure if my wiring is correct. Currently, i'm using ping 2/4/6 on the motherboard header.

Does anyone know the correct pinout for the DS218+ serial header, or have advice on how to bring my NAS back to life ? Any help would be greatly appreciated

Sorry for my bad language...

• Pin 2 = GND --> GND on USB to TTL cable/adapter
• Pin 4 = TXD --> RXD on USB to TTL cable/adapter (3.3v)
• Pin 6 = RXD --> TXD on USB to TTL cable/adapter (3.3v)

Putty settings: 115200/8/N/1…

 

[majin]

Thanks for your reply, unfortunately nothing is displayed. I'm looking for a .bin file for 218+ to flash the motherboard chip.

 

[ragnarok]

Thanks for your reply, unfortunately nothing is displayed. I'm looking for a .bin file for 218+ to flash the motherboard chip.

What kind of cable/adapter are you using? Normally it is the controller chip on the DOM that breaks. In rare cases a faulty flash during DSM update may break the bios though. Which DSM version did you update from/to?

 

[majin]

7.2 I think, I don't remember very well (it was last year). I use a TTL to USB adapter and a CH3341 (I have both).

 

[ragnarok]

7.2 I think, I don't remember very well (it was last year). I use a TTL to USB adapter and a CH3341 (I have both).

OK, I cross checked on the bios files for the DS218+ and it has not changed since DSM 6.2.4, so it is not very likely, that a bios update took place during your DSM update.

My rescue advice (in named sequence) would be:
1) Try another power supply, to rule out that you have a defect power supply
2) Try another USB to TTL device, preferably a proper USB to UART TTL FTDI 3.3v cable and see if that makes any difference in getting serial output
3) Check you DOM
3.a) See if you can read the DOM from a PC
3.b) If DOM is not readable, replace the DOM or boot from an USB stick
4) If all of the above fails, connect your CH341B programmer and read out the current bios (multiple times!) and write that image back to the bios again, and see if that remedies your boot issue

If 4) fails, construct a new DS218+ bios binary from the bios.ROM contained in the .PAT (PM me, if you need assistance for that) and write that image back to the bios.

 

[majin]

i send pm

 

[Helicopter_red]

Hi did this get fixed? I'm in a very similar situation but with a DS218 so after help with the bios file and reading flashing etc.
my post is here so as not to take over this thread. Bricked DS218

TIA

 

[ragnarok]

Hi did this get fixed? I'm in a very similar situation but with a DS218 so after help with the bios file and reading flashing etc.
my post is here so as not to take over this thread. Bricked DS218

TIA

Not yet afaik, but @majin may have a fresh update…

 

[majin]

Hello, sorry for the delay. I accidentally fried a chip, which caused some extra issues for me. If you've reflashed the BIOS and done all the checks, take a look at the voltages around the processor (there are gold-colored test points); normally, 1.8V goes in, and you should see around 0.8V to 1.0V at the test points.
In my case, I suspect the processor in my NAS is dead.

Don't hesitate to ask if you have any questions
Ragnarök helped me a lot—thanks again.

 

[Helicopter_red]

Hello, sorry for the delay. I accidentally fried a chip, which caused some extra issues for me. If you've reflashed the BIOS and done all the checks, take a look at the voltages around the processor (there are gold-colored test points); normally, 1.8V goes in, and you should see around 0.8V to 1.0V at the test points.
In my case, I suspect the processor in my NAS is dead.

Don't hesitate to ask if you have any questions
Ragnarök helped me a lot—thanks again.

Hi I am convinced my bios is fine and it is board related most likely missing voltages to the processor, I have traced a few and so far cannot locate a 1.8v on the processor side although it is present in one place on the reverse side.
Life would be easier if each of the chip details were readable so I have an idea what voltage should be present. Also I have no idea where the RAM is on my board (DS218) so cannot confirm if the voltage is present there or not.
3.3v 12v and 5v in abundance so i believe it is an issue with the 1.8v rail or lower if there should be other voltages present.
Cheers

 

[majin]

Motherboard 218+ (ram)

the chip that distributes the 3V, 1.8V, and 5V voltages:

For the processor section, you need to remove the processor heatsink. (gold cercle for check voltages)

 

[Helicopter_red]

Hi Thank you for providing details sadly I was mistaken and I actually have a DS218 which is a totally different board. However it is a good insight into some details on there.
For me mine is work in progress I will go back to it again soon when I have a spare bit of time.

Cheers