DAC Topping D50 instruction firmware upgrade

DAC Topping D50 manual firmware upgrade Firmware update of D50 Version: V1.02 (18I) This firmware improves USB anti-interference performance, and solve the "wake up" bug of firmware version 18G. This firmware also fixed version display, you can see correct version after the update. We are deeply sorry about the bug of 18G firmware and we are very grateful for our user Fred Maxwell, he provide us a lot of help at this matter. How to find the SN number? You can find the SN number of D50 at side of it or the side of the box. There&a sticker written "D50-Black" or "D50-Silver" and the SN number is under the bar code. If firmware version of your D50 is already V1.02, that means your D50 is already the newest firmware, it needn&a update. Important note: D50 firmware update (V1.02) 1, This firmware is only suitable for product which SN number start with 1710 to 1807. Please double check your product&SN number is correct. 2, Never turn off or pull out power/USB cable during the update. Firmware upgrade steps 1, Install drivers of this product (pass this step if you had already install drivers successfully) 2, Connect the product to your PC and turn on. 3, Run the exe file of this folder. 4, Click Browse.. and select the bin file of thie folder. 5, Click Start and wait for "Firmware upgrade finished successfully". 6, Check current firmware is already changed and click Exit and finish.