issue after updating apps (banglejs1)

What firmware version do you have on the watch?

FW addr 0x0001a168 fail

This means that there's been an error writing to flash memory. Potentially something got corrupted at the end of flash with an earlier firmware version and you just hit it.

I would suggest:

• App Loader -> More -> Backup - and try and get a zip of all the stuff on your Bangle
  
• App Loader -> More -> Remove All Apps
  
• App Loader -> More -> Restore and upload the zip you had before
  
• App Loader -> More -> Reinstall Apps
  
  

You might have to reinstall bootloader, settings, etc - but that should let you keep whatever files were left on your Bangle.