Have a phone with broken screen with no display but in full working condition (I can mirror its screen to my TV and use the phone) Repairing it costs equal to its original price so I sent this to Mazuma, they initially evaluated at £ 20. After they received the phone, they said the phone isn't powering up and offered to pay £ 5 for it. I didn't trust them and of course wanted them to send the phone back rather than selling for £ 5 I received the phone (which is the only reason for the 2 stars instead of 1 star) and the phone powered up even before charging. I connected it to a screen and was showing %15. Their customer services said "our technicians will tag device as no power on if the device will not meet the percentage of the battery they require when they charge the phone." Looking at some other similar reviews, I think they simply tried to scam me into giving it up for £ 5 .. I understand there are people that are happy with their services so just beware before trusting them