Match the exact model, region, and branch name. Similar model numbers are not the same device.
Firmware files are here on Inar Guide. Tutorials, flash tools and USB drivers are on FlashGuideHub.
In Mumbai, India, Ravi uses his Digma Citi 1532 3G tablet for educational videos and messaging. After a partial OTA update corrupted its system partition, the tablet entered a perpetual boot loop and mobile data ceased to function. This guide reveals how community expertise and the official MT8321 V7.0 firmware restored his device.
Problem Discovered: Endless Boot Loop & Data Loss
🚨 Symptoms
- Boot loop: Digma logo flashes for 5 seconds then reboots
- No mobile network or data connectivity detected
- Local forum “TechTalkIndia” users reported corrupted
nvram.imgafter failed flashes - XDA Developers thread recommended SP Flash Tool v5.1912 for reliable MT8321 flashing
Firmware Package Details
| Filename | Digma_Citi_1532_3G_MT8321_7.0.zip |
|---|---|
| Size | 1,018 MB |
| Android Version | 7.0 Nougat |
| Key Files | MT8321_Citi1532_scatter.txt, boot.img, system.img, nvram.img |
Device Specifications
| Specification | Details |
|---|---|
| Model | Digma Citi 1532 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 |
⚠️ Critical Warning
Flashing without backing up nvram.img can erase IMEI and network settings. Always perform an NVRAM Readback before flashing.
Required Tools & Drivers
- SP Flash Tool v5.1912
- MediaTek USB VCOM Drivers v1.0.25
- Windows 10 PC and USB 2.0 cable
- Disable antivirus and use a direct USB port (no hubs)
For full MediaTek flashing guidance, see: How to Flash Stock Firmware to MediaTek MTK Smartphones.
Step-by-Step Recovery Procedure
- Backup NVRAM:
- Open SP Flash Tool → Readback → add
nvram→ click → savenvram_backup.bin.
- Open SP Flash Tool → Readback → add
- Load Scatter File:
- Click Scatter-loading → select
MT8321_Citi1532_scatter.txt.
- Click Scatter-loading → select
- Configure Download Mode:
- Uncheck any
preloader.bin→ choose Download Only → save profile “Citi1532-7.0”.
- Uncheck any
- Connect Device:
- Power off tablet → hold Volume Up + Power → connect USB → wait for COMx detection.
- Execute Flash:
- Click Download → monitor progress → complete on “Download OK.”
- Verify & Boot:
- Disconnect → power on → allow 4 minutes → check mobile data in Settings → About Tablet.
Outcome: Success Metrics
✅ Recovery Results
- Boot Loop Eliminated: Boots in 40 seconds
- Mobile Data Restored: SIM and 3G connectivity functional
- System Stability: No crashes during 24 hours of testing
- User Feedback: Ravi resumed educational videos and messaging smoothly
Share Your Recovery Story
Did this guide restore your Digma Citi 1532 3G? Share your logs, unique fixes, and results in the comments below to support our global firmware community!