Below is the most reliable, verified link structure for the final for the X722.
Given the specificity of the request for the "official letv leeco le pro 3 elite x722 stock rom link," the most direct and safe approach involves: official letv leeco le pro 3 elite x722 stock rom link
Stock ROM : You can find archived links on the Hovatek LeTV LeEco Stock ROMs Forum . Below is the most reliable, verified link structure
💡 The X722 (Elite) uses the Snapdragon 820, while the standard Pro 3 (X720/X727) uses the Snapdragon 821. Do not mix these ROMs , or you will hard-brick your device. If you run into issues, let me know: What error message are you seeing in QFIL? Is your device currently stuck on a logo or a black screen ? Are you trying to fix a network/LTE issue ? Do not mix these ROMs , or you will hard-brick your device