Blackview Oscal C20
Blackview Oscal C20 is a Blackview firmware file listed under Blackview, distributed as C20_RU_S731_V1.2_20210729V02 with a download size of 1.6GB. It was published on June 16, 2026. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About Blackview Oscal C20
If your Blackview Oscal C20 has been giving you trouble, reinstalling the stock firmware is often the cleanest fix. Here you'll find the full Blackview flash package along with the details to check before you begin. It fixes random reboots, crashing apps, a phone stuck on the splash screen, or a botched OTA update, and removes leftover bloat by returning the Blackview Oscal C20 to factory condition. File Name: C20_RU_S731_V1.2_20210729V02 File Size: 1.6GB Copy your data somewhere safe, top up the battery, grab a working USB cable, and confirm the proper drivers are set up before you start. After flashing, allow a few minutes for the first boot. From there the Blackview Oscal C20 should run like a brand new unit.
File Details
| File name | Blackview Oscal C20 |
|---|---|
| Package | C20_RU_S731_V1.2_20210729V02 |
| Brand / Platform | Blackview |
| Category | Blackview |
| File size | 1.6GB |
| Date added | June 16, 2026 |
| Price | Free |
How to use this file
- Confirm Blackview Oscal C20 matches your exact device model and that it is intended for Blackview hardware.
- Back up your personal data, as flashing firmware can erase the device.
- Download the file (1.6GB) 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 Blackview Oscal C20 free to download?
Yes, Blackview Oscal C20 can be downloaded free of charge from this page.
How large is the download?
The Blackview Oscal C20 package is 1.6GB.
Which devices is this firmware for?
This file is intended for Blackview devices. Always confirm it matches your specific model before flashing.