Winmax X50 Firmware Flash File Download [Stock Rom]

The Winmax X50 (SC9832e) was an Android 8.1 Go Edition smartphone that, despite its modern OS, was rendered unusable for many due to a critical software bug. As widely reported on user forums like XDA-Developers and in YouTube comment sections, a significant number of devices were struck by a persistent “Google Play Services has stopped” error loop immediately after the initial setup or a factory reset.

This crash made it impossible to access the Play Store or use any Google-dependent apps. This issue, combined with specific reports of Jio/VoLTE network failures and extreme system lag, pointed to corrupted GApps integration and modem configuration.

Flashing the official stock firmware, particularly the later August 29 build, is the definitive solution to break the crash cycle and restore full functionality.

Winmax X50 Firmware Details

Download Official Firmware for Winmax X50

Option 1: Firmware Build 20180806

Option 2: Firmware Build 20180829 (Recommended)

Why Flash This Specific Firmware?

• Break the “Google Play Services Has Stopped” Loop: This is the most critical reason for using this firmware. If your Winmax X50 is stuck in a constant crash cycle of Google apps, flashing the stock .pac file performs a clean installation of the integrated Google Mobile Services (GMS), which is the only proven method to resolve this debilitating issue, as confirmed by numerous user success stories.
• Fix Jio/VoLTE and Mobile Data Issues: Resolve the specific problem where the device cannot register on Jio’s 4G network for data or calls, or shows no internet connectivity despite a strong signal. The firmware flash reinstalls the complete modem firmware and IMS settings for VoLTE, ensuring proper network registration.
• Eliminate Extreme System Lag and Freezing: Address the severe performance problems and unresponsiveness that make the device frustrating to use. A clean firmware installation removes any software corruption and restores the optimized memory management of the Android Go system.
• Unbrick a Soft-Bricked Device: Recover your phone if it has become unresponsive or stuck on the boot animation, often a direct result of the Google Play Services crash loop or a failed attempt to fix it.

Some of the Bug / Firmware Fixes

• Firmware Build 20180829 (August 29, 2018): This later build included a critical update to the integrated Google Play Services and GMS core, directly patching the compatibility issue that caused the persistent crash loop in the earlier August 6 release.
• Updated the modem configuration to properly support Jio’s IMS and VoLTE profiles, fixing the “No Service” or data connectivity issues that were prevalent on this network.
• Optimized the kernel’s memory management and scheduler for the SC9832e chipset, significantly reducing the UI freezes and application lag that users experienced during multitasking.
• Patched a security vulnerability in the system WebView component that was causing instability in some web-based applications.

Crucial Prerequisites Before Flashing

• Backup All Data: The flashing process will completely wipe your phone’s internal memory.
• Charge Your Phone: Ensure the battery is charged to at least 60% to avoid shutdowns during the process.
• Install Spreadtrum Drivers: You must install the Spreadtrum SCI USB drivers on your Windows PC.
• Download the Flashing Tool: You will need the SPD Upgrade Tool.
• Use a Quality USB Cable: For a stable and successful flash, use a reliable USB cable.

How to Flash the Firmware

Flashing the `.pac` firmware onto your Winmax X50 requires the SPD Upgrade Tool. Follow these steps:

1. Download and extract your chosen firmware ZIP file on your computer.
2. Launch the SPD Upgrade Tool.
3. Click the gear icon (“Load Packet”) and select the `.pac` file from the extracted firmware folder.
4. After the file loads, click the play icon (“Start Downloading”).
5. Power off your Winmax X50 completely.
6. Press and hold the Volume Down button, then connect the phone to your computer via USB while still holding the button.
7. The tool will detect the device, and flashing will begin. You can release the volume button now.
8. Wait for the process to complete, which will be confirmed with a green “Passed” message.
9. Disconnect the phone and power it on. The first boot can take 5 to 10 minutes.

For a complete guide with screenshots and more details, please visit our official tutorial: How to Use the SPD Upgrade Tool.