DOM Apacer replacement

Printers, HDDs, USB/eSATA drives, 3rd-party programs
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

DOM Apacer replacement

Post by 90Ninety »

I recently had been running into some rebooting issues with my TS 451 . I tried many things to try to prevent it happening . Anyhow to cut to the chase , I ended up dismantling it as a last ditch attempt to resolve this issue , I did initially notice the DOM chip was not seated flush and after further inspection I have noticed that the header contacts and pads have lifted from the Apacer DOM PCBA :-0

Can I get these replaced by QNAP pre-programmed? Or can we program our own ? I have basic tech knowledge so if someone has done it , that would be useful , otherwise will have to bin the unit .

I would just like a standard dom module so that I can run the factory QTS operating system once more

I have attached an image of the DOM chip , part number is 79700-m512-028-RS
You do not have the required permissions to view the files attached to this post.
User avatar
dolbyman
Guru
Posts: 35030
Joined: Sat Feb 12, 2011 2:11 am
Location: Vancouver BC , Canada

Re: DOM Apacer replacement

Post by dolbyman »

90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

dolbyman wrote:the DOM images including recovery procedure are here

Great thanks for the links , however I failed to explain clearly , there is a physical problem with the DOM flash module , the contact pins on the PCBA have broken away from the headers , along with the pads - so its beyond my repair ability

So my question is , where can I find these DOM modules ? I've searched everywhere but , to no avail

Once I find a blank Module , can I then simply install then use this guide? :

https://wiki.qnap.com/wiki/Firmware_Rec ... S_Recovery

http://eu1.qnap.com/Storage/tsd/fullima ... -1.2.8.img
User avatar
dolbyman
Guru
Posts: 35030
Joined: Sat Feb 12, 2011 2:11 am
Location: Vancouver BC , Canada

Re: DOM Apacer replacement

Post by dolbyman »

how does the module look from the other side ? (connector)
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

I wonder if once a spare blank DOM is found , if we could follow this guide
https://wiki.qnap.com/wiki/Firmware_Rec ... S_Recovery
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

dolbyman wrote:how does the module look from the other side ? (connector)
like this, see attached ; I did try to solder it but the pads had lifted so is extremely difficult . There are other contacts for USB connection I think ?
You do not have the required permissions to view the files attached to this post.
User avatar
dolbyman
Guru
Posts: 35030
Joined: Sat Feb 12, 2011 2:11 am
Location: Vancouver BC , Canada

Re: DOM Apacer replacement

Post by dolbyman »

90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

dolbyman wrote:you could try one like this
http://www.ebay.ca/itm/ATP-1GB-9-10-Pin ... xydlFS~o0g
Nice find - That looks like it would work

I have read others have got replacement DOM SSD's and installed Linux. So in theory I should be able to install standard Qnap Firmware. I wonder if anyone done this in practice however?
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

So I ordered this one
: http://www.ebay.ca/itm/KingSpec-USB-DOM ... RTM2247626


Will let you all know how it goes . This is a strange thread subject largely not seen before , so hopefully we can determine if someone does have a corrupt DOM flash / Firmware , they could always physically replace it

Oh and Qnap would not offer a replacement Flash disk , not even at a cost - shocking really , they must have a whole load of them
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

Surely Qnap Modders have replaced the Flash DOM Modules in these things ?

There's an old thread here about changing the Flash DOM to an SSD for an older model viewtopic.php?f=12&t=13967&start=15

I have seen 32 GB Flash Dom Modules on Aliexpress , so I can only imagine that you should be able to install any operating system
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

What I tried

Plan A.
Booting Linux on Live USB with blank DOM installed
Result
. Could not recognize or format blank DOM

Plan B
Clone Original DOM , to a Blank DOM
Result
Connected original DOM to a stripped USB fly lead, mounted in linux then cloned to a temporary USB . Next step is to clone the USB to the New Dom Flash
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

OK plan B worked

I did manage to attach a stripped USB cable and created a clone - worked like a charm
Image
User avatar
dolbyman
Guru
Posts: 35030
Joined: Sat Feb 12, 2011 2:11 am
Location: Vancouver BC , Canada

Re: DOM Apacer replacement

Post by dolbyman »

great that it worked...just very impractical for most...wonder why the direct flash method did not work
90Ninety
Know my way around
Posts: 152
Joined: Mon Jun 27, 2016 7:00 pm

Re: DOM Apacer replacement

Post by 90Ninety »

Yeah

Was my last option , my linux friend has a look also , he said he could not get write permissions or mount the blank DOM drive .

The Flashed DOM actually has several partitions so we were wondering if the Blank DOM has to be partitioned or prepared separately from the flashing process also ?
User avatar
schumaku
Guru
Posts: 43579
Joined: Mon Jan 21, 2008 4:41 pm
Location: Kloten (Zurich), Switzerland -- Skype: schumaku
Contact:

Re: DOM Apacer replacement

Post by schumaku »

Can you provide a partition listing? Just curious...

When I have it right, there must be a partition holding the recovery boot for example.
Locked

Return to “Hardware & Software Compatibility”