02-13-2018 04:16 AM
I found my Yoga 920 sometimes ( at least once in a day ) suddenly doesn't detect SSD and cannot boot. In the case it happens while using it, bluescreen appeared and try to restart but after that the BIOS message says "Default boot device missing or boot failed. Insert recovery media and hit any key. Then select 'boot manager' to choose a new boot device or to boot recovery media." I found thread of same error cause on other device and solve by selecting Legacy Boot on BIOS but this device's BIOS doesn't have that option. Any idea?
11-26-2018 12:25 PM
If you are having problems where your SSD is sometimes not being recognized at startup, the first stem is to make sure you have a current backup.
01-17-2019 10:03 PM
I have also had the same issue with my yoga 720. It started only occurring occasionally, but then quickly escalated to the point where it would not boot at all. Since I was still under warranty, I took it to the store where I purchased it and they recommended I send it to Lenovo for repairs. They ended up replacing the hard drive entirely, and it worked (mostly) fine for a while, though it still crashed unexpectedly and gave me an "UNEXPECTED_STORE_EXEPTION" message. The last few times I have booted up my laptop, however, I have been seeing the "DEFAULT BOOT DEVICE MISSING OR BOOT DEVICE FAILED" message upon startup. This, needless to say, is very concerning, especially now that my warranty has expired. I bought this laptop because it seemed reliable (and I spent a good deal of money on it), yet I have been continuously dissapointed in its performance. Moreover, the trackpad has completely stopped working because of a hardware issue, though that is unrelated. I am a full-time student and both can't afford to be without a functional laptop and can't shell out the money to buy a new one. Please help.