Download Sharp Z3 official firmware from the link here, and follow the provided flashing instructions to learn how to flash the stock rom.
If you notice that any of the links provided below is broken or doesn’t work, please post in comments section so we fix and update it ASAP.
File Name: VN3-1310-0-00WW-B01-update.zip
Size: 1.96 GB
Firmware – Download
How to flash
- After downloading any of the above firmware update packages
- Copy to the root of your phone’s storage (that is, /sdcard/)
- Launch your phone’s dialer (phone app) and dial *#*#874#*#*
- On the next screen select “Install update” and the update process should now commence
- Please wait patiently and do not interrupt the update process. Ensure also that your phone is charged to at least 50%
- Once the update is complete, click the next option to restart the phone.
- That’s all
If you need further assistance with flashing the update package please post in comments section below.