Download ZTE Blade A7S 2020 Firmware (A7020): Fix Bootloop, Lag & Software Issues
This comprehensive guide provides direct download links for the stock firmware flash files and step-by-step instructions to restore your ZTE Blade A7S 2020 (A7020). Whether you need to reset your phone, fix bootloop issues, bypass password locks, resolve device freezing, or address other software problems, this guide has you covered. The ZTE Blade A7S 2020, featuring a Spreadtrum SC9863A chipset, a 6.09-inch HD+ display, and a 4000mAh battery, is a budget-friendly device from 2020 designed for reliable performance. Note: This article is for the A7020 model (ZTE Blade A7S 2020), not to be confused with other ZTE models like Blade A7 2020 or Blade A5 2020.
⚠️ Essential Pre-Flash Checklist
Flashing can lead to errors if not done correctly. Complete this checklist to ensure a smooth process. All data will be wiped, so a backup is critical.
- ✅ Full Data Backup: Save photos, contacts, and files to Google Drive, a PC, or an SD card to prevent data loss.
- ✅ Charged Battery: Ensure your ZTE Blade A7S 2020 has at least 60% battery to avoid interruptions during flashing.
- ✅ Windows PC: The SPD Flash Tool requires a Windows operating system.
- ✅ Original USB Cable: Use a high-quality USB-C cable for a stable connection to your PC.
- ✅ Unlocked Bootloader: Some ZTE devices may require an unlocked bootloader for flashing. Check ZTE Support or XDA Forums for bootloader unlock instructions specific to A7020.
- ✅ Required Software: Install the SPD Flash Tool and ZTE USB Drivers.
Understanding the Firmware: Types and Regions
Selecting the correct firmware is crucial to avoid bricking your ZTE Blade A7S 2020 (A7020). The A7020 model uses the Spreadtrum SC9863A processor, and firmware files are specific to this chipset.
- SPD Firmware (.zip): A full factory image for SPD Flash Tool, ideal for unbricking or reverting to stock firmware.
- Region Codes:
- TEL_MX: Mexico-specific version, tailored for local networks.
- USR/ROW: US or Rest of World version, typically with broader compatibility and multi-language support.
Note: The provided firmware files are for Spreadtrum-based devices. Ensure compatibility with your A7020 model before flashing.
Official Firmware Downloads for ZTE Blade A7S 2020 (A7020)
These firmware files are sourced from trusted repositories for reliability and security. Ensure you download firmware for the A7020 model to avoid compatibility issues.
| Region | Firmware Version | Android | Release Date | Download Link |
|---|---|---|---|---|
| Mexico (TEL_MX) | V1.6_040821 | 9.0 | 2021-04-08 | ZTE_Blade_A7S_2020_A7020_TEL_MX_V1.6_040821_SPD.zip (Google Drive) |
| US/ROW (USR/ROW) | S318_1611281510_V2.3 | 9.0 | 2016-11-28 | A7020a40_USR_S318_1611281510_mp7-V2.3_lenovo6755.66c.m_P164_ROW.zip (AndroidFileHost) |
Note: The Mexico firmware (V1.6_040821) is newer and tailored for TEL_MX networks, while the US/ROW firmware (V2.3) is older and may suit broader compatibility. Custom ROMs like Xiaomi.eu are not available for ZTE devices, and TWRP support is limited for A7020.
TWRP Recovery for ZTE Blade A7S 2020 (A7020)
The ZTE Blade A7S 2020 (A7020) has limited TWRP support due to its Spreadtrum SC9863A chipset, which is less common in custom recovery development. No official TWRP image is available for A7020 at this time. For custom recovery or ROM flashing, check XDA Forums for unofficial builds or alternative recovery options. Proceed with caution, as Spreadtrum devices may require specific tools or methods.
Alternative Recovery: If TWRP is unavailable, use the stock recovery or SPD Flash Tool for firmware installation. Consult XDA Forums for community-developed recovery solutions.
Recommended Custom ROMs
Custom ROM support for the ZTE Blade A7S 2020 (A7020) is extremely limited due to its Spreadtrum SC9863A chipset, which lacks widespread community development compared to Qualcomm or MediaTek chipsets. No mainstream custom ROMs (e.g., LineageOS, Pixel Experience) are officially supported for A7020.
- Stock Firmware: Stick to the provided stock firmware (TEL_MX or US/ROW) for stability and compatibility.
- Check XDA Forums: Visit XDA Forums for any unofficial ROMs or ports, but expect limited functionality (e.g., camera or network issues) due to the Spreadtrum chipset.
How to Flash: Step-by-Step Instructions
The ZTE Blade A7S 2020 (A7020) uses the SPD Flash Tool for flashing due to its Spreadtrum chipset. Follow these steps carefully.
Method: SPD Flash Tool Method (Stock Firmware)
- Download and Extract Firmware: Download the appropriate firmware file (TEL_MX or US/ROW) and extract it using 7-Zip to obtain the .pac file and other components.
- Install USB Drivers: Install the ZTE USB Drivers on your Windows PC.
- Launch SPD Flash Tool: Download and open the SPD Flash Tool with administrator privileges.
- Load Firmware: In SPD Flash Tool, click the “Load Packet” button and select the .pac file from the extracted firmware folder.
- Enter Download Mode: Power off your ZTE Blade A7S 2020. Press and hold Volume Up + Volume Down (or check device-specific key combo on XDA Forums), then connect to the PC via USB-C cable.
- Start Flashing: Click the “Start Downloading” button in SPD Flash Tool. Wait 5-10 minutes for the process to complete. Do not disconnect the phone.
- Reboot: Once flashing is complete, disconnect the device and reboot it.
Troubleshooting Tip: If SPD Flash Tool fails to detect your A7020, ensure USB drivers are correctly installed, try a different USB port (preferably USB 2.0), or re-download the firmware to avoid corrupted files. Check XDA Forums for device-specific guidance.
After the Flash: First Boot and Setup
The first boot after flashing may take 10-15 minutes as the system initializes. Don’t interrupt if it seems stuck on the ZTE logo. Once booted, follow the setup wizard and restore your data from your backup.
Device-Specific Q&A for the ZTE Blade A7S 2020 (A7020)
- Q1: Why does my ZTE Blade A7S 2020 experience system lag? A: System lag can result from bloatware or heavy apps taxing the Spreadtrum SC9863A. Flashing the latest TEL_MX firmware (V1.6_040821) can improve responsiveness.
- Q2: How can I fix battery drain on my ZTE Blade A7S 2020? A: Battery drain may stem from background processes or outdated firmware on the 4000mAh battery. Flashing a clean stock ROM (TEL_MX or US/ROW) can optimize power efficiency.
- Q3: Will the ZTE Blade A7S 2020 receive Android 10 or newer? A: The A7020 is officially capped at Android 9.0. Custom ROMs are unlikely due to limited community support for the Spreadtrum chipset. Check XDA Forums for any unofficial builds.
- Q4: I flashed a firmware for a different ZTE model and it’s bricked. What do I do? A: If your device is in a bootloop or EDL mode, use SPD Flash Tool with the correct A7020 firmware (e.g., V1.6_040821). Ensure the device is in download mode (Volume Up + Volume Down) and select the .pac file. Seek help on XDA Forums if issues persist.
