Here is the latest new firmware for these models. These are stable PTZ model, most of them support auto tracking. SD6CE245U-HNI SD59225U-HNI, SD59230U-HNI SD6CE230U-HNI, SD6CE225U-HNI, SD50225U-HNI, SD52C225U-HNI SD52C230U-HNI, PTZ1A225U-IRA-N, SD6AL245U-HNI, SD6AE245U-HNI SD50430UN-HN SD59430U-HNI Update: Attentionlease Try to keep the power on during update. Later versions cannot return to versions earlier than 2.800. After update, make a default(Not Factory Default). Can report to me if have any bugs.