Use the (SP Flash Tool for MediaTek chips – the A59s uses the MediaTek MT6750). This requires an scatter.txt file and the firmare in OFP format. Only attempt this if your phone is completely bricked (no recovery mode).
| Specification | Value | |---------------|-------| | | OPPO A59s (CPH1717 / CPH1719 / CPH1723 – Global variants) | | ColorOS Version | 3.0 | | Android Version | 5.1.1 Lollipop (no official upgrade to Nougat or higher) | | Kernel Version | 3.10.72 | | Security Patch | Up to August 2018 (final) | | Build Number Example | A59s_11_A.21_180821 | | Region | Global (Multi-language, Google apps included) | oppo a59s global firmware
Disclaimer: Flashing firmware carries inherent risks. The author assumes no responsibility for bricked devices, lost IMEIs, or voided warranties. Always ensure you have the correct firmware for your specific model number. Use the (SP Flash Tool for MediaTek chips
The primary barrier to installing official global firmware on an Oppo A59s is the manufacturer’s security policy. Unlike some of its competitors, Oppo typically employs a locked bootloader | Specification | Value | |---------------|-------| | |
For the Oppo A59s, the distinction is often between Chinese firmware (which may lack Google Play Services by default) and Global firmware (which includes Google Services). Switching to a Global version is often the primary motivation for users who purchased an imported device.