Ensure you flashed the final official firmware update (Android 8.1 Oreo) before installing a custom ROM. The custom software relies on the modern modem drivers packaged inside the official Oreo update. Alternative Option: Optimizing Stock Android 8.1
Download your chosen Custom ROM zip file (e.g., LineageOS 17.1 or 18.1) and the corresponding zip file (ARM64 architecture) to your external MicroSD card.
You must flash Team Win Recovery Project (TWRP) specific to the TB-X704F.
First, let's understand the tablet's hardware, as it's key to understanding its update journey.
Locate and select the custom ROM zip file from your MicroSD card. Swipe to confirm the flash. lenovo tbx704f android update 2021
While the Android 9 Pie feature update was the headline, for the TB-X704F. Lenovo typically follows a bimonthly security update schedule for its budget tablets.
Would you like detailed steps for installing a custom ROM like LineageOS on this tablet?
Running an outdated OS left the device vulnerable to known security issues patched in newer Android versions.
Lenovo officially ceased software support for the TB-X704F prior to 2021. Android 8.1 Oreo. Original Launch OS: Android 7.1 Nougat. Ensure you flashed the final official firmware update
Flash the recovery using the command: fastboot flash recovery twrp-name.img .
📢 #Lenovo TB-X704F users: No official Android 10 or 11 update in 2021. Final version remains Android 8.1 Oreo. Tablet is still fine for media & browsing, but be cautious with sensitive apps due to outdated security patches. Consider a custom ROM or new tablet for better security. 📱🔒
If the system indicates you are up to date on Android 8.1, you have reached the official end of the road. No further security patches or OS jumps will be pushed to the device via Lenovo. You can verify this by looking at the official Lenovo Android Upgrade Matrix . 🛠️ The Unofficial Route: Custom ROMs
The TB-X704F has a dedicated community on platforms like XDA Developers. You must flash Team Win Recovery Project (TWRP)
While it's possible to flash ROMs from internal storage if TWRP is already installed, the initial unlocking and TWRP installation process requires a PC and a stable USB connection.
: Official manufacturer updates largely ceased around late 2018, leaving the device officially stuck on Android 8.1 Oreo for most variants. 2021 Reality : For users checking the Lenovo Support Android Upgrade Matrix
The software will automatically detect your tablet model and fetch the latest available firmware (Android 8.1).
The Lenovo Tab4 10 Plus (TB-X704F) is a classic tablet, but its official software journey largely ended with Android 8.1 (Oreo). As of 2021, Lenovo has not released any further official OS updates. 🚀 The State of Lenovo TB-X704F in 2021 Official Status Android 8.1 Oreo. Update Outlook: No official Android 9, 10, or 11 planned. Security Patches: Infrequent or discontinued by 2021. Performance in 2021 Apps: Most Play Store apps still support Android 8.1.