diff --git a/src/Shark.Fido2.Core/Dictionaries/TpmCapabilitiesVendors.cs b/src/Shark.Fido2.Core/Dictionaries/TpmCapabilitiesVendors.cs
index b71906b7..e8c4ebb9 100644
--- a/src/Shark.Fido2.Core/Dictionaries/TpmCapabilitiesVendors.cs
+++ b/src/Shark.Fido2.Core/Dictionaries/TpmCapabilitiesVendors.cs
@@ -32,6 +32,7 @@ internal static class TpmCapabilitiesVendors
         { "4E534700", "NSING" },
         { "4E544300", "Nuvoton Technology" },
         { "51434F4D", "Qualcomm" },
+        { "51434f4d", "Qualcomm" }, // To address firmware defect
         { "534D534E", "Samsung" },
         { "53454345", "SecEdge" },
         { "534E5300", "Sinosun" },
diff --git a/tests/Shark.Fido2.Core.Tests/Dictionaries/TpmCapabilitiesVendorsTests.cs b/tests/Shark.Fido2.Core.Tests/Dictionaries/TpmCapabilitiesVendorsTests.cs
index 0d680891..f6c79168 100644
--- a/tests/Shark.Fido2.Core.Tests/Dictionaries/TpmCapabilitiesVendorsTests.cs
+++ b/tests/Shark.Fido2.Core.Tests/Dictionaries/TpmCapabilitiesVendorsTests.cs
@@ -59,6 +59,8 @@ public void Exists_WhenVendorIdHasExtraSpace_ThenReturnsFalse()
     [TestCase("414D4400")]
     [TestCase("49424D00")]
     [TestCase("49424d00")]
+    [TestCase("51434F4D")]
+    [TestCase("51434f4d")]
     public void Exists_WhenVerdonIdIsMatched_ThenReturnsTrue(string vendorId)
     {
         // Act