Finally I managed to login to the forum I have working bios for DS218+ and just managed to upload to dropbox let's hope this link works and still comply with the rules of the forum https://www.dropbox.com/scl/fi/n2e2oaw9rb8tcmwkpyvky/DSM_DS218-_69057-mod_final?rlkey=r58rzia3jgztcn7zxp1ytf6rm&st=q8ownq5q&dl=0by bahodir - uBoot
Sorry for overdue message: I have managed to get my ds218+ running with the help of this forum and input from members. I wanted to add some more details so other no-so-experienced users like me can follow instructions mentioned earlier: - I have replaced CMOS battery with no luck, kept new battery in. - I have used CH341A Programmer with 1.8 v adapter and SOIC8 Clip. I did not use any soldby bahodir - uBoot