<span style="color:#FF0000">'''For updating the BIOS update instruction, see''' : [[fitlet3: BIOS Update|<u>'''fitlet3 BIOS update</u>''']]</span>
'''<span style="color:#FF0000">Important:</span>'''<br />
* BIOS update recommended in case if the system is unstable, or required fixes have been released. * Incorrect BIOS update has a risk for system brick. Please, therefore follow the guide step-by-step.
== 2507-JunFeb-2023 2024 ==* '''BIOS version: 00.0607'''* Fixed SMBIOS (DMI) dataBIOS update issues
=== BIOS for standard fitlet3 ===
[https://fit-iot.com/files/download/fitlet3/bios/production/flt3.prd.zip FLT3.PRD.00.06.zip07] (MD5: ebc4eca21409794d2edac6ac0071cb25)
=== BIOS for standard fitlet3 with external TPM (dTPM) ===
[https://fit-iot.com/files/download/fitlet3/bios/production/FLT3flt3.PRD.TPM.00.05tpm.zip FLT3.PRD.TPM.00.05.zip07] (MD5: b72728b34c409e04f342e1aabbdc3450)
=== BIOS for unbranded fitlet3 ===
[https://fit-iot.com/files/download/fitlet3/bios/production/FLT3flt3.PRDbn.zip FLT3.BN.00.0507] (MD5: e172b5404304bf2e67bdc6dc8aead83b) === BIOS for unbranded fitlet3 with external TPM (dTPM) === [https://fit-iot.com/files/download/fitlet3/bios/production/flt3.bntpm.zip FLT3.PRD.BNBNTPM.00.05.zip07] (MD5: 11d137aac5d90a9a33edbe84300f6dc1) == 24-Oct-2023 ==* '''BIOS version: 00.06'''* Fixed SMBIOS (DMI) data* Fixed Serial Terminal Redirection mode* Fixed HDMI Audio issue* Removed deprecated GPIO device in Windows* Fixed menu accessibility in User mode
== 25-Jun-2023 ==
* BIOS version: 00.05