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Download Bontel 7300 Firmware

Learn how to flash/unbrick this device from here

Note
Follow the instructions on how to flash the device carefully from the link above
I will not take responsibility on whatever may happen to your device.

Make sure you are downloading the exact Firmware of the device you want to flash because
 flashing a wrong Firmware, will make the device completely dead
(cant power on, cant charge and will not be detected by a computer)

download file now