Downloading firmware for a mobile device typically involves obtaining the specific software package designed for that device model. However, the availability of firmware and the process for downloading it can vary depending on the manufacturer, the model of the device, and its region.
Remember to always verify the authenticity and compatibility of the firmware before downloading and installing it on your device.
Installing incorrect firmware can potentially damage your device or render it inoperable, so proceed with caution and follow any instructions provided by GRETEL or reputable sources closely.
| Mobile Name | Version | File Size | Download Link |
| GRETEL A6 | Download Here | ||
| GRETEL A7 | Download Here | ||
| GRETEL A9 | Download Here | ||
| GRETEL G1 | Download Here | ||
| GRETEL G7 | Download Here | ||
| GRETEL G9 | Download Here | ||
| GRETEL GT6000 | Download Here | ||
| GRETEL S55 | Download Here |