A kindle sitting in diagnostics too long can drain the battery. Be sure to recharge it.
I do not have a new $69 kindle (it is being called K4B in the parent forum) so I do not know about data.tar.gz problems. You could try installing it with both data.tar.gz and ENABLE_DIAGS, to see if it installs when you boot to diags. That worked 5.1.0 firmware. But now 5.1.2 needs a different method that uses a .stgz file instead, I think. Search the forums and/or index wikis for details.
Last edited by geekmaster; 09-15-2012 at 10:47 AM.