Ok so there’s an issue that some HTC Rezound owners are experiencing that involves the phone getting stuck in an infinite boot loop and I wanted to share my solution.
Here’s the issue: once you turn off the phone…when you turn it back on, the phone will turn on, look like it’s going to boot up, but once it gets to the homescreen it will turn off by itself and turn on again…and then repeat…this is the infinite boot loop.
I experienced this for the first time today, and did a little research on how to get out of it…
Here’s what worked for me…
1. take off the back cover
2. take out the battery
3. remove the 4G SIM card (and leave it out)
4. put the battery back in
5. turn on the phone (it should boot fine, with the exception of it saying there is no SIM card inserted…this is fine, just ignore this for now)
6. from the homescreen…hit menu > settings > wireless and networks > mobile networks > network mode > select LTE/CDMA
7. turn off the phone
8. take off the back cover
9. take out the battery
10. re-insert the 4G SIM card
11. put the battery back in
12. turn on the phone
So what’s causing this and how to prevent it?
Well for me, this problem was associated with me switching on/off the 4G LTE (I do this to save battery…I only turn 4G on when doing data heavy tasks). There seems to be a problem when you turn off 4G LTE, which puts you in “CDMA only” mode, and then you turn off the phone…because when you turn the phone back on, the 4G SIM card needs to have the 4G LTE enabled, otherwise you get stuck in a boot loop for some reason.
*From my research it seems like HTC and Verizon are both aware of the problem and there is a software upgrade scheduled to be released soon to remedy the issue…until then, make sure 4G is enabled before you power down.