I'd installed the April build LOS 18.1 ROM with Nikgapps core to my TB-X704A successfully. There is no more pop up "error"warning message!
The ROM is stable enough to be used as a daily driver. There are hitcups that I had seen so far:
- lost IMEI if installed Magisk v.24.3
- wifi occasionally drops connection
- the sound from internal speakers is low
Those hitcups are considered minor and bearable to me to use the ROM.
Bugs: WiFi scan can not stick when exit the set up page. This leads up to the "WiFi turn on automatically" function can't turn on.
Suggestions:
- increase Wi-Fi idle timing so the connection won't drop
- modify all the volume values in the mixer_path_config.xml from 84 to 94
- incorporate audio mod, ie. Dolby Atmos into the ROM so user won't root the ROM to install Magisk Modules.
Thanks the OP for the ROM and keeping the Tab4 10 Plus alive!