I was trying to update my deco m4r with the 1.4.3 firmware from the tplink US site. It succeeds in uploading but then it fails almost immediately. Although my kit was bought from Bangladesh, it says "

Hello All, Hope everyone is doing good and staying safe. Am having weird issue with deco m4 v2, am trying to upgrade it from "1.4.1 Build 20200714 Rel. 47859" to "M4R 2.0_en_1.4.3 Build 20200918 Rel.