Hi, I have an iPhone 5s and I purchased an MFi certified cable from Amazon last year (here is a link to the specific cable) and it had been working perfectly fine until this weekend and now it will not charge my phone. I get the message that pops up about 'this cable or accessory is not certified and might not work reliably with this iPhone'. I'm just unsure as to why this cable would suddenly no longer work and would like opinions from those more knowledgable than myself on whether it's likely that there's something wrong just with the cord or if there's something potentially wrong with my phone now. To give you a little bit more information, the phone will charge fine with the cable provided to me by Apple, it's just all of a sudden now with this MFi certified cable that that message pops up and my phone actually loses battery % when it's plugged into that cable. It had been working perfectly for almost a year though up until this point in time. Any information/thoughts/opinions would be greatly appreciated!