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Martin Brown[_2_] Martin Brown[_2_] is offline
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Default Lenovo tablet screen spontaneously cracked

On 03/01/2019 22:22, Pamela wrote:
On 17:54 3 Jan 2019, Cynic wrote in
:

I bought a lenovo 10" tablet in November as a present for my adult
daughter. Just prior to Christmas she left it overnight on a wide
window cill. In the morning she found a crack across the glass screen.
It had not been subject to dropping or any other impact. I returned it
to the Argos shop where I had bought it and it was duly sent off for
investigation. Today I received a telephone call to say a replacement
screen was not covered under warranty and replacement would cost £130
(the tablet was £110 new). I refused the repair cost and the tablet
will be returned to me. However it seems to me unreasonable to have a
crack develop in such circumstances. I would expect stresses in the
unit during manufacture to have a bearing on this failure. Google led
me to an almost identical case with Argos refusing to accept
responsibility. To help me to assess the true scale of the problem I'm
curious if any members of this group have come across the same
situation?


I have heard of this happening to Lenovo smartphone screens (such as the
Moto G5) but had assumed there was some minor impact that had been
overlooked. Perhaps not.


My Moto G Gorilla glass screen has survived several drops onto concrete
floors (not recommended) with only minor chips to the very edges. Most
tablets end up with a spiderweb of cracks if you drop them.

For example:

https://forums.lenovo.com/t5/Moto-G5...creen-cracked-
without-drop-or-damage/td-p/3751411


It only takes a comparatively tiny nick together with a moderate thermal
gradient across the screen such as you might get with one end hanging
over a radiator and the other up against a cold frosty window.

I'm with Argos on this one - the unit has almost certainly been abused.

Thermal expansion and contraction can generate huge forces. In the days
before excessive H&S it used to be a demo in O'level physics to snap a
cast iron bar with a suitable metal rod contraption made red hot and
tightened up. Same principle as rivetting makes ships watertight.

--
Regards,
Martin Brown