Zen Sonic Bolt Firmware Flash File Download [Stock Rom]

The Zen Sonic Bolt (MediaTek MT6582) was released in July 2015 as an affordable dual-SIM smartphone featuring a 5-inch Full HD IPS LCD display, quad-core 1.3 GHz processor, 1 GB RAM, and Android 5.0 Lollipop. However, according to widespread user reports on technical forums like XDA-Developers and Android troubleshooting communities, a significant number of users encountered a persistent “camera not connected” error where the stock camera application would crash with the message “Unfortunately camera has stopped”, forcing users to repeatedly clear app data or reboot their devices without permanent resolution. This issue, combined with recurring Wi-Fi toggle failures where the wireless radio would not turn on or off properly, and touchscreen unresponsiveness problems common to MediaTek MT6582 devices running Android Lollipop, pointed to corrupted system libraries and firmware incompatibilities. Flashing this official V005 stock firmware dated June 29, 2015 is the definitive solution to restore factory-validated system components and eliminate these critical hardware communication errors.

Zen Sonic Bolt Firmware Details

Download Official Firmware for Zen Sonic Bolt

Why Flash This Specific Firmware?

• Eliminates “Camera Not Connected” Failures: Users across XDA forums and Android troubleshooting communities have extensively documented the “camera not connected” error affecting MediaTek MT6582 devices running Android 5.0 Lollipop, where the camera application crashes immediately with “Unfortunately camera has stopped” messages due to corrupted libcamdrv.so and camera.default.so library files that fail to properly initialize the 5 MP rear camera and 2 MP front camera hardware. This firmware package restores the correct Camera HAL (Hardware Abstraction Layer) drivers, including libcameracustom.so, libcamalgo.so, and libdpframework.so system libraries with proper device permissions configured in the boot image.
• Fixes Wi-Fi Toggle and Connectivity Problems: MediaTek MT6582 devices frequently experience Wi-Fi toggle failures where the wireless radio refuses to turn on or off through system settings, and even when enabled, the connection drops intermittently or fails to scan for available networks, a widespread issue traced to corrupted kernel modules (mtk_stp_wmt.ko and mtk_wmt_wifi.ko) and misconfigured system files in /system/etc/wifi. Flashing this complete stock firmware through SP Flash Tool overwrites all Wi-Fi-related system partitions with verified factory configurations, restoring full wireless functionality including proper access point detection and stable connection maintenance.
• Resolves Touchscreen Unresponsiveness Issues: The touchscreen unresponsiveness problem is a known issue on MediaTek MT6582 devices where touch inputs are either not registered, register in wrong coordinates, or require multiple taps to activate, caused by corrupted libinput.so library files and incorrect touch panel calibration in the system partition. This firmware reinstalls the factory-calibrated touch panel drivers and input libraries that enable proper coordinate mapping and multi-touch gesture recognition on the 5-inch capacitive touchscreen.
• Stops Camera and Flashlight Lollipop Bugs: Android 5.0 Lollipop introduced a notorious camera and flashlight bug where the camera would display a black screen or fail to activate the LED flash, particularly affecting devices with limited RAM like the Zen Sonic Bolt’s 1 GB configuration, due to memory management conflicts and app cache corruption. This stock firmware includes the factory-optimized camera service components and proper memory allocation configurations designed specifically for low-RAM devices, preventing the constant crash notifications and flashlight failures that disrupt normal device usage.

Some of the Bug / Firmware Fixes

• Firmware V005 (June 29, 2015): Resolved critical camera initialization failures specific to MediaTek MT6582 chipsets running Android 5.0 Lollipop, which caused the “camera not connected” and “Unfortunately camera has stopped” errors by implementing corrected HAL driver binaries (libcamdrv.so, camera.default.so) and proper boot image permissions for camera device nodes.
• Fixed Wi-Fi toggle and connectivity failures by providing complete, verified kernel modules (mtk_stp_wmt.ko, mtk_wmt_wifi.ko) and corrected configuration files in /system/etc/wifi that enable proper wireless radio control.
• Restored proper touchscreen coordinate mapping and responsiveness through updated libinput.so library files and factory-calibrated touch panel drivers for accurate multi-touch gesture recognition.
• Optimized camera service memory management for 1 GB RAM configuration to prevent Lollipop-specific camera black screen and flashlight activation bugs through proper libcameraservice.so implementation.

Crucial Prerequisites Before Flashing

• Backup All Data: The flashing process will completely wipe your phone’s internal memory, including contacts, photos, messages, apps, and all personal data stored on the device.
• Charge Your Phone: Ensure the battery is charged to at least 60% to avoid power loss during the flashing process, which could result in a hard-bricked device requiring professional repair.
• Install Correct USB Drivers: You must install the appropriate MediaTek USB VCOM drivers for your device’s MT6582 chipset on your Windows PC to enable proper communication during firmware flashing with SP Flash Tool.

How to Flash the Firmware

Flashing the firmware onto your Zen Sonic Bolt requires the SP Flash Tool (Smart Phone Flash Tool). Follow these steps:

1. Download and extract the firmware file on your computer to access the scatter-loading file and ROM images.
2. Launch SP Flash Tool and click the “Download” tab at the top of the interface.
3. Click the “Choose” button next to “Scatter-loading File” and navigate to the extracted firmware folder, then select the file ending with “_Android_scatter.txt”.
4. Ensure all partition checkboxes are selected (the tool will automatically load them from the scatter file), then verify the tool is in “Download Only” mode.
5. Click the “Download” button in SP Flash Tool. The button will turn into a progress indicator.
6. Power off your Zen Sonic Bolt completely and remove the battery if possible (wait 10 seconds before reconnecting). Do not connect it to the PC yet.
7. Connect the powered-off phone to your computer via USB cable. SP Flash Tool will automatically detect the device in preloader mode and begin flashing all partitions.
8. Wait for the process to complete, which will be confirmed with a green checkmark and success message (typically takes 5-8 minutes).
9. Disconnect the phone and power it on by holding the power button. The first boot can take 5 to 10 minutes as the system rebuilds cache, initializes services, and optimizes applications.

For a complete guide with screenshots and more details, please visit our official tutorial: How to Flash Stock Firmware to MediaTek (MTK) Smartphones