Teardown specialists iFixit think they know how Samsung Galaxy Fold screen failures happen. We’ve so far seen six review units fail, with Samsung reportedly taking them all back before any more can happen.

The company says it has identified four potential reasons for the failures, in addition to the screen-protector which isn’t …

In a blog post following its teardown of the device, iFixit begins with a roll-call of review unit failures so far.

And just this morning, we’ve spotted one more, from ‘Mr Mobile’ Michael Fisher.

iFixit says the first issue is an unavoidable one with any folding display: ‘OLED screens are really fragile.’ So as soon as you stop covering them with glass and repeatedly fold and unfold them, you immediately create major vulnerabilities.

Second, given that OLEDs are easily killed by debris and moisture, a 7mm gap allowing debris access beneath the screen is just asking for trouble.

This appears to be exactly what we see with the Galaxy Fold screen failures experienced by The Verge and Mr Mobile. It also happened in another case, but in that one the debris escaped before the screen was damaged.

This 7 mm gap doesn’t seem like a huge deal, but it leaves the display exposed—so should something accidentally enter, it’s curtains for the screen. (Oops.)

Third, iFixit believes there’s a simple explanation for Samsung’s robot folding the device 200,000 times without incident, and the rapid failures by reviewers: humans are not robots.

Finally, Samsung prioritized aesthetics over practicality.

iFixit says it is curious why Samsung didn’t prevent any possibility of people peeling off the top protective layer from the screen.

But screen failures aren’t the only issue with the Galaxy Fold: the firm is also concerned about the longevity of the ribbon cables connecting the electronics in the two halves of the device.

iFixit ends by adding its voice to the chorus recommending you don’t buy one.

As for the rest of the teardown, iFixit found pretty standard-looking Galaxy parts inside – aside from the number of cameras.

Check out the full teardown here.

We line up the unblinking eyes: Rear-facing 12 MP telephoto and 12 MP wide-angle cameras. Rear-facing 16 MP ultra-wide camera. “In-the-fold” 10 MP selfie cam (top) and 8 MP RGB depth cam. “Folded” front-facing 10 MP selfie cam.

Samsung has indefinitely postponed the launch of the Galaxy Fold following the screen failures.

Check out 9to5Google on YouTube for more news: