Chinese Smartphone Torture - don't do it - CUBOT and White Star review

I love a bargain and when I first saw 

White STAR N9770 - 5.08 inch  I thought 'yes, an iPhone for a friend' but - severe alopecia later - 1. Charger didn't work. Both batteries tried (the 'fix' suggested was to leave it longer = niet) Awaiting new charger - will keep trying, come back for updates

#2. Dual sim = for which alien planet? Neither sim card ports fit British sims? Not the one the 'phone I got - but I could be doing it wrong - video's not helped so far.

2. CUBOT is a  bit smaller than above - Cubot C9W Unlocked 4.0 inch Android 4.2 3G Smartphone MTK6572 Dual Core Dual SIM - initially very nice looking but 1. Weird! Seems to have a program that locks the case/back/battery cover? You can't remove it sometimes - it takes throwing to get the back off - smashed screen problems and no replacements from China yet (searched Ebay too) not for delicate hands nor hearts.   Then the best bit! Crazy Chinese torch displays of lights! The thing turns into a random colourful light display, all in Chinese - hilarity definitely but it was then not possible to power down - no off - not at all. There was NO WAY to turn the 'phone off, nor get the back off. Very frustrating indeed. I will fix these bastards one day. Hope this helps.

Why aren't the British manufacturing their own mobiles?