This Lenovo Tab 4 8 TB-8504F firmware flash file (stock ROM) will un-brick and restore your device to its default, factory state. If you previously rooted or modified the system partition in any way, flashing this stock ROM will overwrite all existing modified system files to replace them with factory software.

Make sure to backup all valuable data on the phone, like contacts, messages, app data, etc. This is usually a necessary step before flashing, or resetting your smartphone or tablet. After this process is complete, all data on the device is completely lost.

Again, make sure the phone is charged to at least 30%. So the flashing process is not interrupted by a low battery. Interrupting the firmware installation could result in a dead device.

Follow the recommended flashing steps right after the download options. You can get the firmware file from the link below. Please report any broken links you discover.

Download Lenovo Tab 4 8 TB-8504F stock firmware

Build: Lenovo_Tab_4_8_TB-8504F_USR_S001011_1810162054_Q12000_QDL
Size: 2 GB

Download (GDrive)


Build: Lenovo_Tab_4_8_TB-8504F_USR_S001019_1909091114_Q12000_ROW_QPST
Size: 2.2 GB

Download (GDrive)


Build: Lenovo_Tab_4_8_TB-8504F_USR_S120010_1901181601_Q12000_HFT_QPST
Size: 1.4 GB

Download (GDrive)


Build: Lenovo_Tab_4_8_TB-8504F_USR_S130004_1902221150_Q12000_SCP_QPST
Size: 1.4 GB

Download (GDrive)


Build: Lenovo_Tab_4_8_TB-8504F_USR_S140004_1807121212_Q12000_UK_GB_QPST
Size: 1.4 GB

Download (GDrive)


Build: Lenovo_Tab_4_8_TB-8504F_S140008_190215_UK_QPST
Size: 1 GB

Download (GDrive)

Important! Always backup existing firmware before flashing any other firmware.

How to flash

After you’ve downloaded the firmware from one of the links above, unpack it into a folder on your computer that’s empty. Get a functional USB cable, then follow the instructions via this link to learn how to flash the firmware.

If you have any questions or other contributions, please post them in the comments section for assistance.