Enter the code displayed on your TV below:
Enter the code displayed on your TV below:
What is Chromecast?
Chromecast is a media screening device by Google that enables you to cast your favourite entertainment from your phone or tablet straight to your TV. It is now supported in your room so that you can enjoy your own content on this TV.
How to cast
Just tap the Cast button from a cast enabled app on your phone or tablet to send shows/movies/music/games to your TV.
| Build Number | Region | Security Patch | Notes | | :--- | :--- | :--- | :--- | | KF6-H613ABC-S-230616V251 | Global | June 2023 | Final stable Go edition | | KF6i-GL-230623V356 | India | June 2023 | Carrier aggregation fixes | | KF6j-OP-230310V189 | Nigeria | March 2023 | Local network optimization |
This guide covers partitions, flashing tools, stock ROM details, common firmware issues, and security mechanisms. | Aspect | Details | | :--- | :--- | | Model Numbers | KF6, KF6i, KF6j (Regional variants) | | SoC | MediaTek Helio A25 (MT6762V/WD) – Note: Often misreported as G25; A25 lacks some GPU clocks | | Android Version | Android 11 (Go Edition) – Lightweight | | Kernel Version | 4.19.x+ | | Firmware Type | Full OTA + Scatter-based (SP Flash Tool) | | Baseband | MOLY.LR12A.R3.MP.V57.10.P20 | Firmware TECNO Spark 7T
Spark 7T shares common firmware with Spark 7 Pro but different partition layout. 2. Partition Layout & Critical Partitions (Scatter File) Unlike Qualcomm’s GPT , MediaTek uses a MT6762_Android_scatter.txt . Key partitions: | Build Number | Region | Security Patch
| Feature | Status | | :--- | :--- | | | Yes (TECNO RSA key) | | DA authentication | Required for SP Flash Tool (SLA – Secure Layer Authentication) | | RPMB protection | Enabled (eMMC Replay Protected Memory Block) | | AVB 2.0 | Enabled for vbmeta (system, vendor, boot) | | Bootloader unlock | Possible but erases userdata and may break OTA | Partition Layout & Critical Partitions (Scatter File) Unlike
| Partition | Size (approx) | Function | | :--- | :--- | :--- | | | 512 KB | First-stage bootloader (low-level HW init). Dangerous to flash. | | lk | 1 MB | Little Kernel – secondary bootloader (fastboot mode). | | boot | 32 MB | Kernel + ramdisk (Android boot image). | | recovery | 32 MB | Stock recovery (can be replaced by TWRP). | | system | 2.5 GB | Android Go system image (EROFS or ext4). | | vendor | 400 MB | Proprietary vendor blobs (HALs, camera, audio). | | product | 200 MB | Product-specific overlays. | | userdata | ~50 GB (dynamic) | User apps + data (F2FS formatted). | | nvram | 512 KB | IMEI, Wi-Fi MAC, BT address (critical for radio). | | nvdata | 20 MB | Calibration data. | | sec1 | 1 MB | Security partition (DM-Verity, AVB keys). | | protect1 / protect2 | 8 MB | Sensor hub calibration. | Note: persist partition stores display calibration, touch firmware, and sensor configs. 3. Stock Firmware Versions (Official Builds) Latest known builds (as of 2025):