The Cubot Note 8 is a super-compact Android smartphone released globally in June 2022, targeting simple tasks and extended battery life. Running Android 11 (Go Edition) on a MediaTek MT6739WW quad-core, it offers a 5.5″ FW+ IPS LCD (960×442 px), 2 GB RAM, 16 GB ROM (expandable up to 128 GB), dual nano-SIM, and a removable 3100 mAh battery. The phone sports a 13 MP AI rear dual camera and 5 MP selfie cam. Fast face unlock, light build, and 4G support make it ideal for light users, but only when the correct regional firmware is used.
Users like its basic cost and stock Android but have reported common bugs: battery drains faster than claimed, “storage almost full” warnings, charging or USB bugs, SIM/network issues after resets, lag when multitasking, and sometimes hard-to-fix black screens on boot. Flashing the official Cubot Note 8 PAC firmware (US/EEA/Global) delivers a boot fix, restores the SIM/network, and solves major glitches.
Critical Notice: Before You Proceed
Flashing Cubot Note 8 firmware wipes your apps, data, and accounts. Backup everything (photos, contacts, IMEI) before flash! Always use the right PAC file: EEA for Europe, US for North America, “plain” for Africa/Asia. Wrong region can break LTE or camera.
Quick Device Specs (Cubot Note 8)
- Device Name / Model:
- Cubot Note 8 (MT6739)
- Release Year:
- 2022 (June)
- Chipset:
- MediaTek MT6739WW quad-core, 1.5 GHz
- Display:
- 5.5” IPS LCD, 960×442 px
- Battery:
- 3100 mAh, removable
- RAM / Storage:
- 2GB RAM / 16GB ROM, microSD up to 128GB
- OS:
- Android 11 (Go Edition)
- Special Features:
- 13MP + 0.3MP rear AI camera, 5MP selfie, dual SIM, face unlock, Bluetooth 4.2, 3.5mm jack
Required Downloads
- SPD Upgrade Tool
- Spreadtrum USB Drivers
- Cubot_Note_8_MT6739_US_V03_220613.zip (USA PAC)
- Cubot_Note_8_MT6739_V03_220613.zip (Global PAC)
- Cubot_Note_8_MT6739_EEA_V09_220524.zip (Europe EEA PAC)
| Filename / Version | Region/Carrier | Android Version | Size | Download Link |
|---|---|---|---|---|
| Note 8 MT6739 US_V03_220613 | USA/Canada/Mexico | Android 11 | 1.24 GB | Download (Google Drive) |
| Note 8 MT6739 V03_220613 | Global/Asia/Africa | Android 11 | 1.24 GB | Download (Google Drive) |
| Note 8 MT6739 EEA_V09_220524 | Europe (EEA) | Android 11 | 1.24 GB | Download (Google Drive) |
How to Flash Cubot Note 8 Firmware (PAC File, SPD Tool)
- Unzip your chosen regional PAC file (US, EEA, Global).
- Install Spreadtrum USB Driver and run SPD Upgrade Tool.
- Click “Load Packet”, select PAC image.
- Switch off device, connect via USB (hold Vol Down if needed).
- Click “Start Downloading”; reboot and set up after PASS message.
- See How to use SPD Upgrade Tool for visuals.
Real-World Bugs & Solutions: Cubot Note 8
1. Battery Drains Fast/Does Not Last All Day
Many owners get only 4–6 hours heavy use—use battery saver, disable auto sync/location, and close unused apps. After flash, full charge/discharge cycles help recalibrate.
2. “Storage Full” or Apps Can’t Install
System takes nearly 9GB—leave 4–5GB free; always move photos/media to microSD. Clean app/data cache after major updates.
3. SIM/Network Not Detected After Flash/Update
If you lose LTE or calls, reinsert SIMs, reset APNs, and confirm the correct (EEA/US/Global) PAC. Backup IMEI, as loss can happen with some tools.
4. Lag & Freezes With Several Apps
2GB RAM with Go Edition is best for basic use. Flashing official ROM restores speed—close out background apps often.
5. Charging/USB Connection Flaky
Faulty USB port or cable is common. Try another cable or charger—power off to charge faster. Official ROM fixes most charge bug firmware.
6. Black Screen or No Boot After Update/Reset
Rare, but if the phone is dead after a failed update or wrong ROM, re-flash with the proper PAC for your region (US, EEA, Global).
FAQs: Cubot Note 8 Firmware & Community
- Which PAC file should I use?
- US file for USA/Canada/Mexico, EEA for Europe, generic for Asia/Africa.
- Battery drains much faster than claimed?
- Disable auto-brightness, sync, location, and keep few apps open for longer use.
- Can I recover my phone if stuck on logo/black screen?
- Yes—use the matching PAC and SPD tool, but always back up IMEI before starting.
- Storage fills up—what can I do?
- Move personal files to SD, keep at least 4 GB free for updates/system apps.
- SIM/network missing, calls/data not working after update or flash?
- Re-flash the right PAC, reset APNs, and use verified carrier SIMs. Backup/restore IMEI if needed.
- Will all my data and apps be lost?
- Yes, full flash erases user data and accounts—always backup before using SPD flash.
Closing & Call to Action
Flashing Cubot Note 8 PAC firmware unbricks, restores battery, network, and charging fixes—just use your correct region file. Bookmark this resource and comment below with new issues for up-to-date Cubot solutions.
