gaetanb

hello, I ruined my DVR by trying to upgrade it with an apparently wrong file... Now it starts up but it stops at the color bars... The original firmware was : V4.02.R11.00000117.10001.1300 Does anyone now where i can download such a file with booting files so i can put it on a USB stick and flash it..? It's a very common DVR with the standard blue menu screen like you can find all over Aliexpress... thanks in advance Gaetan