So is it right to say: for an owner of a newer wii to recover from the same bricks that bootmii/boot2 could recover from, the options are:
1) Change the hash for boot 1. Since this hash is stored in
the OTP, this means changing chips with one that has the hash for the old boot 1. And then somewhere along the line you need to have put the old boot 1 (which you magically came into possession of) into the NAND chip. All of this must be done before the brick. Chances are in favor of you screwing something up in this process. From here you will then be able to get NAND recovery via bootmii/boot2 after a brick.
2) Hope some flaw is discovered in the new boot1, allowing you to install bootmii/boot2 before the brick, allowing you NAND recovery after. This may never happen, since no such flaw may exist.
3) Use bootmii/ios to make a NAND backup before the brick. Anyone can do this right now. Inject the NAND backup with
an external programmer after a brick. This would give the same result as if you had bootmii/boot2, except with the added bonus of buying hardware, undeniably voiding warranty, and potential soldering.
Is that right?