Install of SWR50.zip fails - /data can't be mounted about librealarm HOT 2 CLOSED

I installed tetra_nfc_LCA43_0.2.zip anyway and now the watch won't boot. Gets stuck with the twirling colored dots and never progresses. Even doing "Factory Reset" doesn't get it to boot.

from librealarm.

I found that apparently the "unable to mount data" seems to have to do with the /data partition (in my case, "/dev/block/mmcblk0p32") having some internal flag which seemed to not allow it to be mounted read/write. I could do "adb shell" to get to the watch and then to "mount -r /data" and that worked just fine. I decided to rebuild the entire /data partition. Use "adb shell" to get a shell prompt on the watch, do "mount" to make sure /data is NOT mounted. If it is, do "umount /data", which should unmount it. you can see what's being mounted where via "cat /etc/fstab". You want to rebuild the disk partition which will be mounted on /data. On my watch this was "/dev/block/mmcblk0p32", so "/sbin/make_ext4fs /dev/block/mmcblk0p32". Then "exit" to get back to your system where you're running adb.

So, I followed the "How to install NFC on Sony Smartwatch3" instructions (I'm not allowed to post a link or else I would, but you probably have these instructions already.)
(I'm doing the "downgrade" part of the instructions, which is where the "install" failed.)

Just after "fastboot boot twrpnew.img", I inserted the above work to rebuild the /data partition. DO NOT mount /data after having rebuilt it! You should also should see that /cache is NOT mounted at this time. Do "exit" to get back to your adb system and continue following instructions at "adb push SWR50.zip /sdcard/", and the "install" worked for me after this!

from librealarm.