Can i update a verizon unlocked htc one m8 without a verizon sim/root/s-off/etc

I have a Verizon unlocked m8. I have T-Mobile service and no way to get a Verizon SIM to update the firmware. I need to update it to the latest lollipop build. I do not want to do the work to root/install custom recovery/etc. Heard something about a image you flash using stock recovery. I do not have a sdcard or a computer. I'm really want to update my phone. Thanks in advance

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