⚠️ Disclaimer: This guide is for educational purposes only. We don't distribute copyrighted firmware. Always obtain files from official sources. Flashing may void warranty.
🔧 What's Inside the BD4 PAC File?
The official PAC firmware package for Tecno Pop 5 BD4 contains:
- boot.img - Kernel and boot partition
- system.img - Android OS files
- userdata.img - Factory data partition
- modem.img - Baseband/radio files
- recovery.img - Stock recovery image
📦 Requirements Before Flashing
- Tecno Pop 5 BD4 (30%+ battery recommended)
- Original USB cable (avoid cheap replacements)
- Windows PC with SPD Flash Tool v3.0 or newer
- Spreadtrum USB drivers installed
- 1.5GB free disk space
⚡ Step-by-Step Flashing Guide
Step 1: Extract PAC file and SPD Flash Tool to desktop folder
Step 2: Power off phone → Hold Volume Down → Connect USB cable
Step 3: Open SPD Tool → Select "Firmware Upgrade" mode → Load BD4.pac file
Step 4: Click "Start" → Wait 15-25 minutes (do NOT disconnect!)
Step 5: When green checkmark appears → Disconnect → Force restart (hold power 30 sec)
🔍 Fixing Hang on Logo After Flash
If your Pop 5 gets stuck on Tecno logo:
- Re-flash using "Format All + Download" mode
- Perform factory reset from recovery (Vol Up + Power)
- Check PAC file MD5 checksum matches official
🚨 Common Errors & Solutions
| Error | Solution |
|---|---|
| "USB Not Found" | Reinstall Spreadtrum drivers |
| "Download Failed" | Try different USB port/cable |
| Stuck at 99% | Wait 10 mins, then retry |
💡 Pro Tip: After successful flash, skip initial setup and perform factory reset for best performance.
📢 Final Notes
- This guide works only for Tecno Pop 5 model BD4
- Backup IMEI/NV data before flashing
- First boot may take 5-10 minutes
🔒 Legal: We're not affiliated with Tecno Mobile. SPD Flash Tool is property of Spreadtrum. Use at your own risk.