@perfectokeme this "media test failure, boot device not found" means your computer can't read/find your HDD. Go into your BIOS and check there to see if the HDD still shows.
It could be purely coincidental that it stopped working or there is something else that is going on with it. It should not relate to the battery having been removed. Your computer was turned off when you removed the battery, right?
+
+
For now, check the [document|35375] page 79 and on and see what shows up.
@perfectokeme this "media test failure, boot device not found" means your computer can't read/find your HDD. Go into your BIOS and check there to see if the HDD still shows.
It could be purely coincidental that it stopped working or there is something else that is going on with it. It should not relate to the battery having been removed. Your computer was turned off when you removed the battery, right?