Have a Unihertz Titan Slim - screen has a black line across it and it is within warranty. Unihertz say they have no spare screens and cannot replace the phone. Will refund minus £60 usage charge - that does not help. DO NOT buy their products, they do not support them.
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Unihertz is dedicated to developing unique smartphones for niche groups of people. We have introduced the smallest smartphones, QWERTY phones, rugged phones, dual-screen phones, etc., and successfully launched several popular products among smartphone enthusiasts on Kickstarter.