Ok, your problem is Solved. BTW, Garmin UnLocker Alternative v8.0.0/8.0.1 has gimgunlock +MapSig.exe as its unlock engine. Using gimgunlock +MapSig itself directly should also have worked fine.

As to why this big chart won't fit on a 4GB [~4,000,000,000 bytes] media card, see Post #4 in the chart thread: [Only registered and activated users can see links. ]. I'm not sure your report of the img size being 3,858,880KB is accurate. That's 3.85888GB if you mean decimal or ~3.68GiB if you mean binary. In that case it would fit on a 4GB [~3.86GiB] card. It's reported in the chart thread that the img is ~3.91GiB [~4.2GB] in size which does align with it not fitting on a 4GB card.