Tap . If an update is available, follow the prompts to download and install it. 2. Using ROM Update Utilities (RUU)
Depending on your carrier, the version numbers for the final Marshmallow updates typically include: 6.20.651.3 AT&T: 6.20.502.5 Verizon : 6.21.605.3 T-Mobile: 6.20.531.5 How to Update Your HTC One M8 Stock ROM htc one m8 stock rom updated
This is the simplest method and is recommended if your phone is currently unrooted and running an official HTC ROM. htc one m8 stock rom updated
For the majority of HTC One M8 variants, the official software support concluded with . This update introduced critical features such as Doze for battery optimization and refined app permissions. htc one m8 stock rom updated