I have HTC M8 unlocked US mobile, now I am in India, My mobile doesn't get updates, My device is running on KitKat, I can not update firmware, My mobile getting poor WIFI, Bluetooth and network signals, Is it hardware problem or software?? I haven't update my firmware.
In bootloader I got these information
M8_WHL PVT SHIP S-OFF
Please help me for getting updates and updating firmware.
I don't know the exact carrier but i think Its Sprint Harmon, Now I am using Local Network (Indian)