I just got the replacement backcover in cyan from aliexpress. I turned off my phone to put it on, but when I restarted I got the infamous gear and flash logo (aka your ROM is broken). I then took out the battery and put on the original cover. I'm a bit afraid to retry putting on the cyan cover. Did anyone experience similar things? Does this have something to do with the phone not finding it's NFC/Qi-chips (which are only on the original backcove? Also, did someone try to peel of the NFC/Qi-Stickers and put the on the fake backcovers?