In Mumbai, India, Ravi uses his Digma Optima 1022N 3G tablet for daily news consumption and messaging. After a partial OTA update, his MT8321 device entered a boot loop, lost mobile data, and suffered frequent SystemUI crashes. This guide details the exact steps and community-sourced fixes that restored his tablet using the official MT8321 V7.0 firmware.
Problem Discovery: Symptoms & Community Clues
🚨 Critical Symptoms
- Endless boot loop: Digma logo appears for 7 seconds, then restarts
- Mobile data fails: “No service” despite SIM inserted
- SystemUI crashes when switching between apps (“Unfortunately, SystemUI has stopped”)
- GPS drift: Location accuracy degraded to 100m radius
Research: Real User Reports
Issues Fixed by V7.0 Firmware (from XDA & Indian forums)
- Boot Loop Resolution: Firmware restores correct
system.imgstructure after corrupted OTA writes - Mobile Data Recovery: Rebuilds
nvram.imgto restore IMEI and network calibration - SystemUI Stability: Fixes Framework crashes caused by mismatched UI resources
- GPS Accuracy: Updated GNSS driver reduces drift to 5–10m
- Charging Indicator: Corrects missing charging animation issue on Android 7.0
Firmware Package Details
| Filename | Digma_Optima_1022N_3G_MT8321_7.0.zip |
|---|---|
| Size | 1,003 MB |
| Android Version | 7.0 Nougat |
| Key Files | MT8321_Optima1022N_scatter.txt, boot.img, system.img, nvram.img |
Device Specifications
| Specification | Details |
|---|---|
| Model | Digma Optima 1022N 3G |
| Chipset | MediaTek MT8321 (Quad-core 1.3 GHz Cortex-A7) |
| GPU | Mali-400 MP2 |
| RAM/Storage | 1 GB RAM / 8 GB eMMC |
| Display | 7″ IPS 1024×600 |
| Battery | 3500 mAh Li-Polymer |
Required Tools & Drivers
- SP Flash Tool v5.1912
- MediaTek USB VCOM Drivers v1.0.25
- Windows 10 PC, USB 2.0 cable
- Disable antivirus, use direct USB port (no hubs)
Refer to our comprehensive guide for flashing MediaTek devices: How to Flash Stock Firmware to MediaTek MTK Smartphones.
Step-by-Step Flashing Procedure
- Backup NVRAM:
- Open SP Flash Tool → Readback → add
nvram→ click → savenvram_backup.bin.
- Open SP Flash Tool → Readback → add
- Load Scatter File:
- Select
MT8321_Optima1022N_scatter.txtvia Scatter-loading.
- Select
- Configure Download Mode:
- Uncheck
preloader.bin→ select Download Only → save profile “Optima1022N-7.0”.
- Uncheck
- Connect Device Safely:
- Power off tablet → hold Volume Up + Power → connect USB → wait for COMx detection.
- Execute Flash:
- Click Download → monitor progress → complete when “Download OK”.
- First Boot & Validation:
- Disconnect → power on → allow 4 minutes → verify mobile data and SystemUI stability.
Recovery Results
✅ Success Metrics
- Boot Loop Eliminated: Boots in 35 seconds
- Mobile Data Restored: SIM and 3G connectivity functional
- SystemUI Stability: No crashes during 24h testing
- GPS Accuracy: Improved to 5–10m
- Charging Animation: Displays correctly during charging
Share Your Recovery Story
Did this guide restore your Digma Optima 1022N 3G? Share your logs, unique fixes, and performance notes below to help strengthen our global firmware recovery community!
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