The Nokia 1.4 is a budget-friendly Android smartphone valued for its reliability and clean software experience. However, like any mobile device, it can encounter software glitches that corrupt its International Mobile Equipment Identity (IMEI) number. When an IMEI becomes invalid, null, or "0049", the phone loses its ability to connect to cellular networks, rendering calls, texts, and mobile data useless.
The computer will recognize the device as Qualcomm HS-USB QDLoader 9008 .
Accidentally wiping or overwriting the EFS partition while flashing custom recoveries (like TWRP) or rooting scripts.