The Stock ROM Flash File will help you to Upgrade, Downgrade or re-install the Stock ROM Firmware (OS) on your Device. The Flash File (STOCK ROM) also helps you to repair the device, if it is facing any Software Issue, Bootloop Issue, IMEI Issue or Dead Issue.
How To Flash Symphony?
[*] Step-1: Download and extract Symphony Z15 Stock Flash Firmware Package on your computer. After extracting the flash Firmware file package you will be to see Firmware File, Flash Tool, USB Driver and Flashing Guide.
[*] Step-2: Install USB Driver on your laptop or computer, if you have already installed, skip this step and follow next step.
[*] Step-3: Open After Sale and click to Setting. If you are looking for after the latest After-Sale Download Flash tool, check the link below on the post.
[*] Step-4: Now Click to load and select scatter file from Symphony Z15 Flash Firmware File Package from your computer and click to confirm.
[*] Step-5: After choosing flash Firmware file click to start button and insert a USB cable. Make sure your device is switched off.