lg g6 impossible recovery

[alex70italy]

today unfortunately I updated magisk 18.1to 19, that I had installed on a 20h rom stock with root and from that moment I can no longer use the phone. I tried by installing rom from recovery twrp (3.3.0 - 3.2.3) have an error with partition. I tried using lgup with stock rom 20g, 20h, 20i but I always error on anti roolback. I've always done the various wipes, including the internal storage, but nothing, I can't install any firmware, ideas?
lg g6 h870

 

[dmann9999]

today unfortunately I updated magisk 18.1to 19, that I had installed on a 20h rom stock with root and from that moment I can no longer use the phone. I tried by installing rom from recovery twrp (3.3.0 - 3.2.3) have an error with partition. I tried using lgup with stock rom 20g, 20h, 20i but I always error on anti roolback. I've always done the various wipes, including the internal storage, but nothing, I can't install any firmware, ideas?
lg g6 h870

try to use lgup so it reinstalls stock partitions /recovery/firmware. It should work

 

[alex70italy]

try to use lgup so it reinstalls stock partitions /recovery/firmware. It should work

Thanks, i resolve with lgup & put firmware in upgrade mode (last i have 20g i put 20h).
All other mode nothing