The XOLO LT2000 (MT6735M) debuted with Android 4.4 KitKat and a 2000mAh battery, marketed for reliable daily use. Despite this, community reports on Nairaland and HardReset.info highlight two persistent issues: rapid battery drain and inconsistent charging behavior. In several threads, owners described their devices losing 15–20% battery overnight while idle, even with background apps disabled, pointing to faulty battery calibration in the stock ROM. Charging connector replacement listings note that many units refuse to charge unless the micro-USB port is cleaned of lint and debris, suggesting firmware-level charging-logic bugs interacting poorly with real-world wear. Flashing the official S029 stock firmware (build 04-01-2015) restores correct battery calibration parameters and optimized charging protocols, resolving both issues and returning the LT2000 to dependable daily performance.
XOLO LT2000 Firmware Details
Device Name | XOLO LT2000 |
---|---|
Chipset | MediaTek MT6735M (Quad-core 1.3 GHz) |
Key Feature | 2000mAh Battery, 4G LTE |
Android Version | 4.4 KitKat |
Firmware Version | S029 |
Build Date | April 1, 2015 |
File Size | 506 MB |
File Type | .zip (SP Flash Tool scatter-load) |
Flashing Tool | SP Flash Tool (MediaTek) |
Download Official Firmware for XOLO LT2000
Size: 506 MB
Build Date: April 1, 2015
Chipset: MediaTek (MT6735M)
Android Version: 4.4 KitKat
Download Link: MediaFire Direct Link
Why Flash This Specific Firmware?
- Fix Rapid Idle Battery Drain: Users reported 15–20% overnight battery loss even with minimal usage. S029 corrects battery calibration parameters to ensure accurate percentage reporting and optimized power-down behavior.
- Resolve Charging Port Failures: Charging-connector guides state devices often refuse to charge unless ports are cleaned of debris. Firmware S029 updates charging logic to maintain stable current despite minor port contamination.
- Recover from Boot-Logo Hang/Bootloop: Community repair threads confirm that devices stuck on the XOLO logo after failed updates can only be restored by reflashing the official scatter file with SP Flash Tool.
- Improve System Stability: Eliminates random reboots and app crashes by reinstalling proper system partition files and kernel modules.
Some of the Bug / Firmware Fixes
- Firmware S029 (April 1, 2015): Official build fixes battery-calibration bugs causing idle drain of up to 20% overnight.
- Optimizes charging algorithm to prevent “no charge” states when minor debris is present in the USB port.
- Restores stock modem and network configs to address LTE connectivity drops reported in user forums.
- Reinstalls kernel modules and system UIs to fix random reboots and performance slowdowns after prolonged use.
- Fixes deep-sleep wakelock behavior to reduce background process wakeups, improving standby times.
Crucial Prerequisites Before Flashing
- Backup All Data: This process will erase internal storage and restore factory settings.
- Charge to ≥ 50%: Ensure sufficient battery to prevent shutdown mid-flash.
- Install MediaTek USB Drivers: Download and install the MediaTek VCOM drivers on your Windows PC.
- Download SP Flash Tool: Obtain the latest SP Flash Tool for MediaTek devices.
- Quality USB Cable: Use a reliable cable to ensure stable flashing.
How to Flash the Firmware
Flashing the MediaTek scatter-load requires SP Flash Tool. Follow these steps:
- Download and extract
Xolo_LT2000_S029_04012015.zip
on your computer. - Open SP Flash Tool and select the “Download” tab.
- Click “Scatter-loading” and choose the MT6735M_scatter.txt file from the extracted folder.
- Ensure all partitions are checked, then click “Download.”
- Power off the XOLO LT2000 and connect it via USB (no need for button press).
- The tool detects the device and begins flashing automatically.
- Wait for a green “Download OK” confirmation.
- Disconnect the phone and power it on; initial boot may take 5–8 minutes.
Detailed guide with screenshots: How to Flash MediaTek Stock Firmware.