My phone was install flex rom, but I do nandroid backup back to stock still rooted. After update to kitkat on stock rom, the phone automatic reset to twrp recovery. I can't press volume up while plug in usb cable to get into download mode for make factory reset. Is there anyway I can go to download mode from twrp recovery? My phone still keep going boot to twrp even i tried to restore different backups. Help me!!! plz