AB350m-HDV No POST after update

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   Hello team, 

I have an issue of black screen following an attempt to update the bios version (v1.3 to 2.3) of my Asrock AB350m-HDV. I need to do this update to update my current CPU (Razen 5 1500X) into a W11 compatible. 

I downloaded from here :https://www.asrock.com/mb/AMD/AB350M-HDV/index.fr.asp#BIOS and transferred it to a usb drive (fat 32). 

I went to the bios, disabled fTPM, and then selected the file on the key drive in the Instant Flash. It went well and then when i tried to restart the computer, I have a black screen (no boot). 

Thank you in advance for your help,
Best

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rxxx02 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Sep 2025 Status: Offline Points: 15	Post Options Post Reply Quote rxxx02 Report Post Thanks(0) Quote Reply Topic: AB350m-HDV No POST after update Posted: 24 Sep 2025 at 10:40pm
	Hello team, I have an issue of black screen following an attempt to update the bios version (v1.3 to 2.3) of my Asrock AB350m-HDV. I need to do this update to update my current CPU (Razen 5 1500X) into a W11 compatible. I downloaded from here :https://www.asrock.com/mb/AMD/AB350M-HDV/index.fr.asp#BIOS and transferred it to a usb drive (fat 32). I went to the bios, disabled fTPM, and then selected the file on the key drive in the Instant Flash. It went well and then when i tried to restart the computer, I have a black screen (no boot). Thank you in advance for your help, Best

DontAsk Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Sep 2025 Status: Offline Points: 120	Post Options Post Reply Quote DontAsk Report Post Thanks(0) Quote Reply Posted: 26 Sep 2025 at 2:16am
	Hi, first, I'm not a team member but in the case that your mentioned version numbers (v1.3 to v2.3) are correct then it looks like that you flashed the wrong BIOS. There are 3 revisions of your mentioned mainboard. AB350m-HDV which has no BIOS v1.3 but a v2.3 listed https://www.asrock.com/MB/AMD/AB350M-HDV/index.asp#BIOS AB350m-HDV R3.0 which has a v1.3 but no v2.3 listed https://www.asrock.com/MB/AMD/AB350M-HDV%20R3.0/index.asp#BIOS AB350m-HDV R4.0 which has none of your mentioned BIOS versions https://www.asrock.com/MB/AMD/AB350M-HDV%20R4.0/index.asp#BIOS You need to check which revision your mainboard has. And maybe after a CMOS clear your PC will start or not.

rxxx03 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 5 hours 47 minutes ago Status: Offline Points: 30	Post Options Post Reply Quote rxxx03 Report Post Thanks(0) Quote Reply Posted: 5 hours 37 minutes ago at 12:14am
	Thanks DontAsk. It seems that I made a mistake regarding the actual version of the motherboard. I may have the 2nd one (R3.0) but I used the v2.3 of the 1st one in your list. I did a CMOS clear but it didn't work (jumper and battery). What should I do ? Thank you

DontAsk Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Sep 2025 Status: Offline Points: 120	Post Options Post Reply Quote DontAsk Report Post Thanks(0) Quote Reply Posted: 3 hours 5 minutes ago at 2:46am
	Hi rxxx03, nowadays it should not be possible to flash an unsuitable BIOS to a motherboard if you use the official tools by the manufacturer. However, in your case it's an old board and maybe this model doesn't prevent this faulty flash. If your board has no backup BIOS which I believe then I guess that it's dead. If you want to keep your current system then a replacement motherboard with the needed feature set would be by far the cheapest solution. These boards are among the cheapest.

rxxx03 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 5 hours 47 minutes ago Status: Offline Points: 30	Post Options Post Reply Quote rxxx03 Report Post Thanks(0) Quote Reply Posted: 2 hours 40 minutes ago at 3:11am
	thank you DontAsk, can't I use a external programmer to update the bios ?