imac bios backup needed - GSM-Forum

fashion-mobile · 03-26-2019, 18:07

hi i urgently need backup from imac mid 2017 emc3069 board 820-00597-006

i ve made backup from old efi but backup corrupt , when i reflash efi in imac it wont power

help will be very apreciated

i will upload the backup that if has in case of anyone can repair it
thanks in advance
i can pay smal amount for it
https://ufile.io/uxb65

oljack · 03-26-2019, 19:27

Hi. Remove all RAM and insert one pcs RAM, then flash your original dump, then turn on.

fashion-mobile · 03-27-2019, 11:37

ram is with motherboard i cannot remove it , and original backup i think corrupted

HDB · 03-28-2019, 23:13

First lets us try the easy way in fixing it. After flashing your backup file, try to perform and NVRAM/PRAM Reset, also SMC resets ( in some cases SMC reset did do the trick ). Full details on resets:

https://www.macworld.com/article/288...m-and-smc.html

Now, if that does not work, and your computer still wont start, Lets continue with advanced way ... I have downloaded your file, and i see it is a bin file, and not our product HDBOX compressed format '.hdb' . We use this format ( the '.hdb' ) , because we save about 40-50% space by using our format , and full computer info is stored at the begging of the file, allowing our users to search by those infos.

I was able to retrive your computer SN, and Model number from your file, and I will try to find a donor file to match it as best as possible, then change that file to match your computer info. After that I will give it to you as .hdb file and you have to use your HDBOX to flash it.

Best regards,
HDBOX Support Team.

fashion-mobile · 04-13-2019, 15:38

thank you so much i hope you find a donor

HDB · 04-15-2019, 17:48

Hello,

Toke a while to find the donor file, but we finally did, changed the SN to your SN and upload it. I have PM-ed you the download link.

As usual, after flash, do a verify to confirm write was 100% correct.
After flash, on first boot do the NVRAM / PRAM reset, and computer should be up and running 100%.

Best Regards,
HDBOX Support Team.

fashion-mobile · 04-18-2019, 17:41

i ve hdbox but i dont have spi adapter , can u provide bin file ? i have aunniversel spi programmer

HDB · 04-20-2019, 14:35

If you already have HDBox,then there should be any problem with the format.If you do not have HDBox yet,then you can purchase one set.

Thanks & Best Regards!
HDB Team

Quote:

Originally Posted by fashion-mobile

i ve hdbox but i dont have spi adapter , can u provide bin file ? i have aunniversel spi programmer

03-26-2019, 18:07	#1 (permalink)
fashion-mobile Freak Poster Join Date: Sep 2007 Location: portugal Age: 32 Posts: 114 Member: 595808 Status: Offline Thanks Meter: 7	imac bios backup needed hi i urgently need backup from imac mid 2017 emc3069 board 820-00597-006 i ve made backup from old efi but backup corrupt , when i reflash efi in imac it wont power help will be very apreciated i will upload the backup that if has in case of anyone can repair it thanks in advance i can pay smal amount for it https://ufile.io/uxb65

03-28-2019, 23:13	#4 (permalink)
HDB No Life Poster Join Date: May 2010 Location: Shenzhen, China Posts: 522 Member: 1300847 Status: Offline Thanks Meter: 547	Hello First lets us try the easy way in fixing it. After flashing your backup file, try to perform and NVRAM/PRAM Reset, also SMC resets ( in some cases SMC reset did do the trick ). Full details on resets: https://www.macworld.com/article/288...m-and-smc.html Now, if that does not work, and your computer still wont start, Lets continue with advanced way ... I have downloaded your file, and i see it is a bin file, and not our product HDBOX compressed format '.hdb' . We use this format ( the '.hdb' ) , because we save about 40-50% space by using our format , and full computer info is stored at the begging of the file, allowing our users to search by those infos. I was able to retrive your computer SN, and Model number from your file, and I will try to find a donor file to match it as best as possible, then change that file to match your computer info. After that I will give it to you as .hdb file and you have to use your HDBOX to flash it. Best regards, HDBOX Support Team.

03-26-2019, 19:27	#2 (permalink)
oljack Freak Poster Join Date: Oct 2009 Posts: 330 Member: 1144374 Status: Offline Thanks Meter: 64	Hi. Remove all RAM and insert one pcs RAM, then flash your original dump, then turn on.

03-27-2019, 11:37	#3 (permalink)
fashion-mobile Freak Poster Join Date: Sep 2007 Location: portugal Age: 32 Posts: 114 Member: 595808 Status: Offline Thanks Meter: 7	ram is with motherboard i cannot remove it , and original backup i think corrupted

04-13-2019, 15:38	#5 (permalink)
fashion-mobile Freak Poster Join Date: Sep 2007 Location: portugal Age: 32 Posts: 114 Member: 595808 Status: Offline Thanks Meter: 7	thank you so much i hope you find a donor

04-15-2019, 17:48	#6 (permalink)
HDB No Life Poster Join Date: May 2010 Location: Shenzhen, China Posts: 522 Member: 1300847 Status: Offline Thanks Meter: 547	Hello, Toke a while to find the donor file, but we finally did, changed the SN to your SN and upload it. I have PM-ed you the download link. As usual, after flash, do a verify to confirm write was 100% correct. After flash, on first boot do the NVRAM / PRAM reset, and computer should be up and running 100%. Best Regards, HDBOX Support Team.

04-18-2019, 17:41	#7 (permalink)
fashion-mobile Freak Poster Join Date: Sep 2007 Location: portugal Age: 32 Posts: 114 Member: 595808 Status: Offline Thanks Meter: 7	i ve hdbox but i dont have spi adapter , can u provide bin file ? i have aunniversel spi programmer