The BQ 5519G Jeans is an entry-level smartphone designed for users who need basic functionality like calls, messaging, and light web browsing. It features a 5.5-inch 18:9 display and is powered by a UNISOC SC7731E processor. Running on Android 9.0 Pie (Go Edition), the software is optimized for its 1GB of RAM. This guide provides the official stock firmware package, which can be used to restore the device to its factory condition, fix bootloops, or resolve other software-related problems.
Quick Device Specs
- Device
- BQ 5519G Jeans
- Release Year
- 2019
- Chipset
- UNISOC SC7731E
- Display
- 5.5″ IPS, 480 x 960 pixels
- Battery
- 2500 mAh, removable
- Original OS
- Android 9.0 Pie (Go Edition)
- Special Features
- Textured back cover, 3G Connectivity, 18:9 aspect ratio
Required Downloads
To install the firmware, you will need the SPD Upgrade Tool and the correct USB drivers for the UNISOC chipset. These can be downloaded from our main guide, which is linked in the instructions below.
- SPD Upgrade Tool
- UNISOC/Spreadtrum USB Drivers
Official BQ 5519G Jeans Firmware
| Build Date | Android Version | Type | Download |
|---|---|---|---|
| 13-12-2019 | Android 9.0 Pie (Go) | Stock ROM (.pac) | Download |
How to Flash Firmware on BQ 5519G Jeans
This device uses a UNISOC/Spreadtrum processor, so the flashing is performed using the SPD Upgrade Tool on a Windows computer.
- Download the firmware zip file and extract the
.pacfile to a folder on your PC. - Install the UNISOC USB drivers. A PC restart is recommended after installation.
- Launch the SPD Upgrade Tool.
- Click the ‘Load Packet’ button (the single gear icon) and select the
.pacfirmware file. - Turn off your BQ 5519G Jeans completely.
- Click the ‘Start Downloading’ button (the play icon). Then, press and hold the Volume Down button on your phone and connect it to the PC with a USB cable.
- The tool will detect the phone and begin the flashing process. Once you see a green “Passed” message, you can disconnect your device and power it on.
For a more detailed, step-by-step tutorial with screenshots and download links for the tools, please follow our comprehensive guide: How to Use the SPD Upgrade Tool to Flash Your Smartphone.
Device-Specific Troubleshooting for BQ 5519G Jeans
-
The phone is extremely slow and apps are constantly closing.
This is largely due to the device’s 1GB of RAM. For the best possible performance, keep only essential applications installed, prioritize using “Lite” or “Go” versions of apps (like Facebook Lite), and clear the app cache regularly. Performing a clean firmware flash will remove any software bloat and can provide a temporary speed boost.
-
The device is stuck on the BQ logo and will not start up.
This situation is known as a “bootloop” and is usually caused by a software error. Flashing the official stock firmware is the most reliable method to fix this problem. Follow the instructions carefully to reinstall the operating system and restore the phone to a working state.
-
A “Storage space running out” warning appears frequently.
With only 16GB of internal storage, space can fill up quickly. It’s highly recommended to use a microSD card to store photos, videos, and other media. You can also go to Settings > Apps and move some installed applications to the SD card if the option is available.
FAQs
- Q1. Will flashing this firmware make my phone faster?
- A clean firmware installation will restore the phone to its factory state, which can make it feel faster by removing junk files and software glitches. However, the BQ 5519G Jeans has entry-level hardware, so its overall performance will remain limited to basic tasks.
- Q2. Does this firmware include the Google Play Store?
- Yes, this is the official BQ firmware and it comes with the Google Play Store and all standard Google applications pre-installed, just as it was when the phone was new.
- Q3. Can I use this file to remove a password or pattern lock I forgot?
- Yes, flashing the firmware will remove any screen lock. However, this process will also erase all of your data. Additionally, after the flash, you may be required to enter the Google account email and password that were previously synced to the device due to Google’s Factory Reset Protection (FRP).
