No dice. I've checked all the OTA updates I know about:
19dea2ba1ae5.signed-trygon-HTJ85B-from-HMJ37.19dea2ba.zip
7a15c95f18ba.signed-trygon-HLK75-from-HLK42B.7a15c95f.zip
7ac6aeb09117.signed-trygon-HLK75D-from-HLK75C.7ac6aeb0.zip
a5de99b3e437.signed-trygon-HMJ37-from-HRI66.a5de99b3.zip
In HMJ37 from HRI66 (3.0.1 to 3.1) I see a bootloader.bin along with this in the updater-script
Code:
assert(package_extract_file("bootloader.bin", "/tmp/bootloader.bin"),
moto.set_mbm_update("/tmp/bootloader.bin"),
delete("/tmp/bootloader.bin"));
There is nothing else that does an "set_mbm_update" in any of the other updates.
On the upside the md5sum of this bootloader.bin matches my own dd dump of the ebb partition.
Code:
c3a74df4a356c0e4158fd592cc8be693 bootloader.img
c3a74df4a356c0e4158fd592cc8be693 /tmp/updates/bootloader.bin
I'd be interested to see if someone can take a dump of their ebb partition as I documented earlier and see if the md5sum matches. if it does, then we will know the bootloader is not the problem. If not, then this is something new to try. Basically we need the dump and then an update.zip to flash it. If someone can provide the dd dump then I can make the update.zip. That should be safe enough to flash I think.