I had updated my Lumia 550 to Insider Preview Build 14267 and then when I connected the phone to charger, it doesn't charge. I tried using multiple chargers and all the chargers work with other phones but not my phone. By the time I realised it was software issue of Insider Preview Build 14267, the battery had been to 12% and I cant do hard reset. I also tried to connect the phone by windows recovery tool but even phone cannot be detected. Donno wat to do next.