The Verykool S5027 Bolt Pro is a budget dual-SIM phone released in early 2017 with a 5-inch display, 8MP cameras, and Spreadtrum SC7731C chipset. Users commonly report poor software optimization, touchscreen lag and inaccuracy, slow app launches, severe battery drain (only ~8 hours talk time despite 2000mAh battery), bootloop issues, device stuck at logo after updates, forgotten password locks, and FRP activation failures. The low 1GB RAM causes constant stuttering and app crashes during multitasking, while the plastic build and poor speaker quality add to user dissatisfaction. Flashing the official 20170113 MIRA firmware completely restores your S5027, removes all access locks, fixes system corruption, and returns it to factory condition.
Verykool S5027 Bolt Pro Firmware Details
| Device Name: | Verykool S5027 Bolt Pro |
| Model: | S5027 (Bolt Pro) |
| Chipset: | Spreadtrum SC7731C (Quad-core 1.2GHz ARM Cortex-A7) |
| GPU: | Mali-400 MP |
| Android Version: | Android 6.0 Marshmallow |
| Firmware Version: | SW_1.0 (MIRA) |
| Build Date: | January 13, 2017 |
| File Size: | 857MB |
| File Type: | PAC File (SPD/Spreadtrum – or Miracle Box MIRA) |
| Flashing Tool: | Miracle Box (MIRA) or SPD/Spreadtrum Upgrade Tool |
| Display: | 5.0-inch TFT LCD, 480×854 pixels (~196 ppi) |
| RAM / Storage: | 1GB RAM / 8GB ROM (microSD up to 32GB) |
| Rear Camera: | 8MP autofocus, f/2.4, LED flash, panorama |
| Front Camera: | 8MP, f/2.4 |
| Battery: | 2000mAh Li-Ion (removable) |
| SIM: | Dual SIM (Micro-SIM / Mini-SIM, dual stand-by) |
| Other Features: | WiFi b/g/n, Bluetooth 2.1, FM radio, A-GPS, 3.5mm jack |
Download Official Firmware for Verykool S5027 Bolt Pro
This ROM recovers devices stuck at logo, fixes severe lag and touchscreen unresponsiveness, removes FRP/password locks, resolves bootloop, restores SIM connectivity, and improves power management. Recommended for users experiencing constant app crashes due to low RAM, high CPU usage, or failed updates.
📄 Filename: Verykool_S5027_SW_1.0_13012017_6.0_MIRA.zip
📦 Size: 857MB
🗓️ Build Date: January 13, 2017
🔢 Build Version: SW_1.0 (MIRA)
🤖 Android Version: 6.0 Marshmallow
⬇️ Download Link: Google Drive
How to Flash the Firmware
Follow these 5 quick steps to safely flash Verykool_S5027_SW_1.0_13012017_6.0_MIRA.zip to your phone:
- Download and extract the firmware ZIP. If using Miracle Box (MIRA), load directly into the tool; for SPD Upgrade Tool, extract scatter file.
- Install Spreadtrum USB drivers and launch your chosen flashing tool.
- Load the firmware file (.PAC or scatter) into the tool’s interface.
- Power off your S5027 Bolt Pro, connect via USB (press volume buttons if needed for detection).
- Click “Download” or “Start” in your tool and wait for completion. Reboot the device once done.
For complete step-by-step instructions, follow the SPD flashing guide: SPD Flash Tool Tutorial.
