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Ensure you have the firmware file compatible with your device, a USB cable, and that your device's battery is sufficiently charged. balong usb downloader v1.0.1.10
: Once the loader is successfully sent, the device will usually enter a mode where it can accept standard firmware updates. Common Troubleshooting Let me know if you need anything else
Using the wrong loader file can erase the device's NVRAM, resulting in the loss of permanent identifiers like the IMEI. a USB cable