With removing the "unwanted" files, you removed the stock Android from the things to flash. According to the
Newflasher thread, everything should be flashed. That means:
- Newflasher doesn't like spaces in the path (according to the thread), so avoid them for the newflasher and firmware path.
- `partition-image_X-FLASH-ALL-18AE.sin` must be placed into a newly created `partition` folder: `mkdir ./partition && mv ./partition-image_X-FLASH-ALL-18AE.sin ./partition/partition-image_X-FLASH-ALL-18AE.sin`
- `simlock.ta` must not be flashed (bricks device) but Newflasher ignores it for ages AFAIK
- `persist_X-FLASH-ALL-18AE.sin` must not be flashed (AFAIK flashing it removes factory calibration data forever). Recent Newflasher versions ignore it automatically.
With this, you should be able to flash the whole stock firmware including the stock Android.
Then, after flashing the stock Android, be sure to boot at least once into Android and finish the initial setup assistant. Be sure that VoLTE is enabled.
I had my SIM inserted during this first boot. After the setup assistant, Android said it has to reboot to complete carrier provisioning. After the reboot I checked that VoLTE is enabled and working. Then, I started to proceed with the LineageOS installation instructions.
This worked for my 4113 and 3113.
Hope this helps saving your device.