Uncheck the autoupgrade on XPEnology right away, DO NOT upgrade to 5565!!!
*** Your XPEnology Web Interface will be gone once upgraded it ***.
*** Synology Assistant CAN NOT find diskstation ***.
If it was too late, then you have to do the Downgrade procedure: downgrade by 5565 to 5022
URL: http://xpenology.com/forum/viewtopic.php?t=5932
Download link: http://ukdl.synology.com/download/DSM/5.1/5022/DSM_DS3615xs_5022.pat
Quick steps:
Logon as 'root' with its password
cd /etc.defaults [ENTER]
vi VERSION [ENTER]
Press 'i'
modify minorversion=”1″ to '2' -> '1' and buildunumber='5565' to '5021'
Press ESC -> w[ENTER]
q[ENTER]
reboot [ENTER]
Select ...Install/Upgrade
Run Synology Assistant
Right click the [Migratable] on the found diskstation -> Install -> Browse
Browse to DSM_DS3615xs_5022.pat
Input admin's password twice -> [Next>] -> [Finish]
How to install XPEnology on non-Synology hardware?
Download iso file and burn it to either USB drive or CD media.
Download URL: http://xpenology.me/downloads/
Once the PC was boot from USB or CD, you need the SynologyAssistant from another PC to scan the same LAN to discovery the XPEnology server for reset of the installation.
You need the .pat file on the PC. Remember to shutdown any Antivirus or Firewall app like the FortiClient etc..
How to create a Bootable CD with new serial number:
#1. Duplicated the original XPEnoboot.iso and rename it to XPEnoboot_newSN.iso
#2. Open the XPEnoboot_newSN.iso with MagicIso, hightlight the isolinux.cfg file and extract it to C: drive.
#3. Check the MAC to serial number generator Excel file.
#4. Drap and drop the modified with new serial number file:isolinux.cfg to XPEnoboot_newSN.iso on MagicIso
#5. Save it on MagicIso top menu.
SOURCE:
http://xpenology.me/how-to-generate-synology-mac-and-serial-valid-pair/
https://www.youtube.com/watch?v=BPYadX_pjEg
http://idmedia.no/wp-content/uploads/2015/07/Synology-mod-new.xlsm

Ds3615xs Serial Number Identification

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Ds3615xs Serial Number Lookup

Click - SELECT button, browse for 'DS3615xs 6.1 Jun's Mod V1.02b.img' file, example screenshot of the selected file as shown below. Note: Ensure the correct USB drive is selected, mine is a 16GB USB flash drive thus its easily identified. Synology License Virtual DSM License Pack with 3-year Software Upgrade Period Retail with fast shipping and top-rated customer service. TheKeyKey offers tech products! Item model number DS3615XS Manufacturer Synology Series DS3615XS Diskstation Processor Count 2 RAM Size 4000 MB Computer Memory Type DDR3 SDRAM Hard Drive Size 72000 GB Wattage 88.48 watts Are Batteries Included No Item Weight 11.8 kg. Ok I am not sure in which way to go I see that synology DS3615xs and the price of one would be £1,604.82 and this is 12 bay drive with low Intel Core i3-4130. I want know if its cheaper to make my own a 12 bay nas can any one help me?