If anyone with C7.5
MIB2 (MHI2) wants to update to the NAR 2022/2023 maps, I've tried to make it a little easier by aggregating the necessary firmware and maps packages and placing them on MEGA.
There is no cost to perform this task and anyone charging you more than the cost of a couple SD cards and shipping is ripping you off.
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As with any kind of tinkering, there is always a risk. Hardware can randomly fail, users can make errors, etc.
The risk here is minimal, as the tools used are pretty well regarded, but there's always chance -- so please keep that in mind before proceeding!
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Before starting, ensure that you have at least 1
32GB SD card (not micro-SD) available (ideally, you should have 2
or 3 -- but you can make do with 1 32GB SD card and USB stick at a minimum).
First off, you're going to want to ensure you have the latest MMI firmware (if you're not already). For C7.5 MIB2 (MHI2) A6/A7 that is going to be K3341 -- which I've made
available here (1.51GB). The nuts and bolts to updating firmware is beyond the scope of this write-up,
see here for a tutorial.
* Note: See the chart here for hidden-menu key combinations (i.e. REM, GEM)
Next, once your firmware has been updated, you're going to need
M.I.B. (More Incredible Bash). This will patch your IFS, allowing you to update beyond your 'allocated' 3-5 free map updates (based on your production year) (additionally, you can also enable CarPlay/Android Auto if you need to). Installation is easy, you just need a 32GB SD card (you can reuse the one used for the firmware above if needed) and then
follow the instructions to install (make sure to
download the patches (466.9MB), too!) This process is completely reversible and a full IFS backup is made (internally and to your SD card) before any changes are performed -- so if you wish to revert all changes and return to stock, you certainly can.
Now that your MMI has been updated and your IFS has been patched, you can then
download the updated maps (10.59GB) and extract them to either a separate 32GB SD card (do not erase/overwrite your M.I.B. SD card!) or USB stick. Once everything has been extracted, perform the update the same way you did the firmware above. The process can take around ~45m, so make sure to either have your car running or that it's hooked up to a battery charger!
Once this process completes, that's it! Your system has now been updated to the latest maps and your FEC has been patched to allow any future updates as well. Once (if?) 2023-2024 maps are made available you can perform the last step in the process above without needing to patch again. Have fun!
!!! Please do not share the above MEGA links outside of this thread. Doing so will just ensure that they get removed and I'm unlikely to bother to put them back up.
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