After updateing DSM to 6.1.3 you should replace XPEnology.iso loader (used for DSM 5.2) by Jun's Loader but this loader need few modification tu work.
- Download Jun Loader 1.02b 3617xs https://mega.nz/#F!BtFQ2DgC!JgomNP3X8V9EuwxL4TXbng!k5NxiIjI
- On ESX in Datastore upload synoboot.img file in the VM directory
- On your computer create synoboot.txt file and paste following lines
- After that rename synoboot.txt to synobbot.vmdk and upload it in VM folder
- On ESXi admin edit setting of VM to add existing hard drive and select synoboot.vmdk
If you see always nothing it is may by the order of hard drive, in VM setting remove all hard drive from config only except synoboot.vmdk, validate and after add again other all existinf vmdk