unknown model in lgup

Hello XDA. I recently revived my G6 after it sat in my drawer for years and was delighted to see HavocOS on Oreo still running on it. I popped in my T-Mobile SIM and voila, service. My only issue was horrible data speeds. I tried every network settings and apn fix that is relevant to my device...

Overview: Did you got that annoying "Unknown Model" in LGUP and now are struck download mode. This usually happens when you try to root with dirty and do something wrong to mess up entire process. What Actually happened in my case: I had a friend who tried to root his H990ds with dirtysanta...

Overview:: Well, something bad happened to my phone (H830), then LGUP said unknown device. I tried many tools, different KDZ but all went failed What Actually happened in my case: I had mm stock 10d ROM then I upgraded to 20a using LGUP KDZ method by using uppercut trick. I wanted to enjoy...