Originally Posted by Tiger1971
New ROM (Update) released by Umidigi.
V2.0_20190703 ROM. Improved Videoperformance.
My T-Moble sims lost calling after that update. Data works. The Verizon sims still worked. Something is not right on the VOLTE radio settings on that update in the back end and I can't find it. It rings twice then hangs up. I am trying this ROM (Eragon) to see if it will fix it before I go back to the previous stock ROM.
*Edit, the rom fixed the T-Mobile calling problem.