@ng6333 Yes, I have found out that the MR600 doesn't have a recovery method. Was fun to play around with though. Problem has been solved, for my router at least, though probably not the way it is...

@ng6333 I have tried the custom ISP image you suggested and it also failed after uploading to 10% with error code 4503 It looks like the same image that was suggested to someone else in the thread, I...

@ng6333 I have again tried version 1.6.0_0.9.1 that you mentioned, just to confirm, and it also immediately stops with error code 71211. Current version installed on the router is 1.0.0 0.9.1 v0001.0...

@ng6333 Thank you for your reply. I have tried the images in the sequence as you requested. None of them worked however. The results are as follows: 1.5.0_0.9.1 - Immediately shows error code 71211...

@Sunshine Hi, I have experienced the same problem with my MR600 router as the other users in this thread. Router was bought online in 2022 from a 3rd party supplier and the unit is not an ISP...