The ASUS PRIME B550M-K is an ASUS PRIME series mainstream motherboard supporting AMD Ryzen processors (AMD 500-series chipset) on the AM4 socket with DDR4 memory. It targets home office users and mainstream builders and provides a comprehensive feature set for its platform tier. BIOS updates deliver stability improvements, security patches, new processor compatibility, and platform optimizations.
Product released: June 1, 2020
Latest firmware version
Version 4201, released July 9, 2026
Last checked for updates: Aug 2, 2026 17:24 UTC
What's new in version 4201
1. Enhance system stability, security, and compatibility.
Version 4001 - September 18, 2025: This BIOS update for Picasso, Raven, Matisse, Vermeer, Renoir, and Cezanne systems includes a critical fTPM firmware upgrade, enhancing security and optimizing…
Version 3902 - August 22, 2025: 1.Updated AGESA to ComboV2 PI 1.2.0.F. 2.Enhanced system performance, stability, device compatibility, and security.
Version 3702 - September 25, 2024: 1. Updated AGESA to ComboV2PI 1.2.0.Cc 2. Added support for Windows Dynamic Lighting (WDL). 3. Updated AURA firmware to 0302. 4. Security update: Improved UEFI…
Version 3607 - April 25, 2024: 1.Update AGESA version to ComboV2PI 1.2.0.Ca. 2.Fix AMD processor vulnerabilities security.
Version 3402 - November 6, 2023: 1. Update AGESA version to ComboV2PI 1.2.0.B 2. Update AMD 5000/3000 Series CPU fTPM version, please back up Bitlocker recovery key before updating this versio…
Version 3302 - August 28, 2023: 1. Recommended for vital update to mitigate the potential security vulnerabilities 2. Improve system stability
Version 3202 - July 13, 2023: 1. Update AGESA version to ComboV2PI 1.2.0.A 2. Mitigate the AMD potential security vulnerabilities for AMD Athlon™ processors and Ryzen™ processors 3. Improve…
Version 3002 - March 7, 2023: 1. Update AGESA version to ComboV2PI 1208 2. Mitigate the AMD potential security vulnerabilities for AMD Athlon™ processors and Ryzen™
Version 2003 - March 15, 2021: - Update AMD AM4 AGESA V2 PI 1.2.0.1 - Support Smart Access Memory for Ryzen 3000 Series Processors - Fix the L3 cache performance in AIDA64 - Improved system…
Version 1803 - February 23, 2021: 1. Update AMD AM4 AGESA V2 PI 1.2.0.0 2. Update AMD RAID UEFI driver 3. Update AURA firmware 4. Improve system stability
Version 1202 - October 29, 2020: - Update AM4 AGESA combo V2 PI 1.1.0.0 PatchB - Improve system performance and stability. - Improve DRAM performance and stability - Fix Corsair keyboard issue
Version 1004 - August 17, 2020: 1.Improve system performance and stability 2.Improve DRAM stability 3.Update AM4 AGESA combo V2 PI 1.0.8.0 4.Improve Fan control function
Version 0805 - July 13, 2020: -Improved system performance and compatibility -Improved DRAM compatibility -Update AM4 combo V2 PI 1.0.0.2
The ASUS PRIME B550M-K is an ASUS PRIME series mainstream motherboard supporting AMD Ryzen processors (AMD 500-series chipset) on the AM4 socket with DDR4 memory. It targets home office users and mainstream builders and provides a comprehensive feature set for its platform tier. BIOS updates deliver stability improvements, security patches, new processor compatibility, and platform optimizations. It was originally released on June 1, 2020.
What is the latest firmware version of ASUS PRIME B550M-K?
The latest firmware version of ASUS PRIME B550M-K is 4201. It was released on July 9, 2026.
What changed in ASUS PRIME B550M-K firmware version 4201?
ASUS PRIME B550M-K firmware version 4201 includes the following changes: 1. Enhance system stability, security, and compatibility.
How do I update the ASUS PRIME B550M-K firmware?
To update the ASUS PRIME B550M-K firmware, download the latest version (4201) from ASUS's website. Follow ASUS's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from ASUS's support page.
Where can I download the latest ASUS PRIME B550M-K firmware?
Details and download instructions for the latest ASUS PRIME B550M-K firmware (version 4201) are on ASUS's official release page: https://www.asus.com/motherboards-components/motherboards/prime/prime-b550m-k/helpdesk_bios/
How do I check for ASUS PRIME B550M-K firmware updates?
You can track ASUS PRIME B550M-K firmware updates automatically on LatestUpdate.io. We monitor ASUS's releases and notify you when new firmware versions are available, so you never miss an update.
How often does ASUS release firmware updates for ASUS PRIME B550M-K?
We have tracked 25 firmware versions of ASUS PRIME B550M-K. Based on historical patterns, updates are released approximately every 135 days. ASUS releases updates to fix bugs, improve performance, and add new features. Track this product on LatestUpdate.io to be notified of future releases.
When is the next ASUS PRIME B550M-K firmware update expected?
ASUS PRIME B550M-K was recently updated. Based on this product's update history, the next firmware update is expected between August 15, 2026 and November 28, 2026.
Is ASUS PRIME B550M-K still receiving firmware updates?
Yes, ASUS PRIME B550M-K received a firmware update within the last month. The most recent version is 4201.
Who makes ASUS PRIME B550M-K?
ASUS PRIME B550M-K is manufactured by ASUS. Visit the official product page for more information.