The most important information about the firmware and the problems that it fixes:
-Fix Wi-Fi.
-Fix bluetooth.
-Fix camera problems.
-Fix slow device problems.
-Fix problems related to IMEI and Bashband.
-Fix problems with sound.
-Fix problems closing applications.
-Update Android version to the latest version.
-Delete the root if present.
-Solve the problems of standing on the Xperia logo.
-Android downgrade version via firmware called roll back.
Of course, if the problems are related to the software.
Notes:
Notes:
In case of any problem or inquiry, you can contact us
Stock Firmware
- G3421_48.0.A.1.54_1311-4905_Customized-BLX V7.0
- G3421_48.0.A.1.66_1310-7890_Customized-IBE V7.0
- G3421_48.0.A.1.99_1311-2035_Customized-TR V7.0
- G3421_48.0.A.1.117_1311-2035_Customized-TR V7.0
- G3421_48.0.A.1.117_1311-2035_Customized-TR V7.0
- G3421_48.1.A.0.129_1311-2035_Customized-TR V8.0.0
- G3421_48.1.A.0.138_1311-2035_Customized-TR V8.0.0
- G3421_48.1.A.2.21_1311-2035_Customized-TR V8.0.0
- G3421_48.1.A.2.50_1311-2035_Customized-TR V8.0.0
- G3421_48.1.A.2.73_1311-2035_Customized-TR V8.0.0