I believe most of those last improvements are for AA and Car Play. ZR are the production ones. PR ?... could be back reading or the experts. It's come up before. If a choice ZR are the ones to go for.
Erwin is suppose to contain notes although I've never looked for these. £7-50 per hour. The PDF manuals are good thou.
The releases are all signed which means they cant get into the unit if edited unless someone has a Cray computer like GCHQ to remanufacture the signature... in general that is and a bit bright. The GEM tool kit apps of which there are atleast three use an exploit to get into mib2 units where a back door was left open. That's how they get loaded in. Not so sure how the mib2 high 1448 AIO was done. Never asked. That appears to be an assembly of the original 1448 release which had missing language files and initial screen problem, well documented that got put back in rather that using SWDL to top up with the previous release which had them in (old method and fumbling with the screen) and elements of what the high toolkit does. That's the only exception I'm aware off.
Erwin is suppose to contain notes although I've never looked for these. £7-50 per hour. The PDF manuals are good thou.
The releases are all signed which means they cant get into the unit if edited unless someone has a Cray computer like GCHQ to remanufacture the signature... in general that is and a bit bright. The GEM tool kit apps of which there are atleast three use an exploit to get into mib2 units where a back door was left open. That's how they get loaded in. Not so sure how the mib2 high 1448 AIO was done. Never asked. That appears to be an assembly of the original 1448 release which had missing language files and initial screen problem, well documented that got put back in rather that using SWDL to top up with the previous release which had them in (old method and fumbling with the screen) and elements of what the high toolkit does. That's the only exception I'm aware off.