Lenovo TAB4 8 (TB8504) for /e/OS-R 1.21
e-1.21-r-20240426-UNOFFICIAL-TB8504.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/OtherSmartphones/e-1.21-r-20240426-UNOFFICIAL-TB8504.zip/download
Please see sources and install instructions including recovery here:
https://xdaforums.com/t/rom-unofficial-11-0-tb8504f-x-crdroid-7-x-for-lenovo-tab4-8.4473173/
Use it at your own risk!
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