FLY FS520
FLY FS520 is a Fly firmware file listed under Fly, distributed as FLY_FS520_MT6737M_SW09_170626.zip with a download size of 1.65 GB. It was published on April 28, 2026. This page has been viewed 2 times. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About FLY FS520
FLY FS520 Stock Firmware (Flash File) The Flash File will help you Upgrade, Downgrade, or re-install the Stock Firmware (OS) on your Mobile Device. In addition, the Flash File (ROM) also enables you to repair the Mobile device if facing any Software Issue, Bootloop Issue, IMEI Issue, or Dead Issue. File Name: FLY_FS520_MT6737M_SW09_170626.zip File Size: 1.65 GB Flash Tool: SP Flash Tool for Windows | SP Flash Tool for Linux How to Flash (install): Follow Tutorial Mirror 1 (Free)Mirror 2 (Paid)
File Details
| File name | FLY FS520 |
|---|---|
| Package | FLY_FS520_MT6737M_SW09_170626.zip |
| Brand / Platform | Fly |
| Category | Fly |
| File size | 1.65 GB |
| Date added | April 28, 2026 |
| Price | Free |
How to use this file
- Confirm FLY FS520 matches your exact device model and that it is intended for Fly hardware.
- Back up your personal data, as flashing firmware can erase the device.
- Download the file (1.65 GB) using the button above.
- Use the appropriate flashing tool for your platform and follow the on-screen steps.
- Keep the device charged and connected until the process completes.
Frequently asked questions
Is FLY FS520 free to download?
Yes, FLY FS520 can be downloaded free of charge from this page.
How large is the download?
The FLY FS520 package is 1.65 GB.
Which devices is this firmware for?
This file is intended for Fly devices. Always confirm it matches your specific model before flashing.