I purchased a new Cubot GT90 via Amazon and after just over 3 months of satisfactory use, it failed and every time I would try to start the device it would drop out. Effectively the Cubot GT90 lasted just over 3 months, which represents terrible value for money. I tried to get a replacement, but was told the guarantee only lasts for 3 months (I guess they got this part right!). Buying the Cubot GT90 is the worst purchase I have ever made and the after sales support is the worst experience anyone should have to contend with. In my opinion the Cubot GT90 is not fit for purpose and not fit to be sold as in my experience just over 3 months life for a new mobile and terrible after sales means people should avoid at all costs if they adhere to my advice.