I have gotten a miserable signal strength (-100 dBm to -120 dBm) in my office on the LTE network for over a year on my HTC DNA, & it has lead to a ton of failed texts & voice calls that can't be made. However, when it gets bad enough that it cannot maintain a connection, it will fail over to a slower network (eHRPH or Evdo.Rev-a) & get much better signal (-71 dBm to -84 dBm). Since this is the call/SMS portion of the network, & the fact that I am on wifi at the office, I could care less about the speed of the data network. I just want to be able to reliably send SMS messages & make calls. I do not want to have to toggle in & out of airplane mode, restart the phone, re-seat the SIM card, perform factory resets, or any other temporary fixes.
Furthermore, it looks like the only network setting that can be changed on the DNA is the mobile data (GSM, LTE/CDMA, or Global). None of those settings has any affect on signal strength.
Does anyone know if it's possible to force the phone to choose the stronger network rather than the fastest network?
(Verizon Wireless Customer Support - there is no water damage or other damage, the zip code is 02210, this is a replaced SIM card, Safe Mode hasn't made a difference, clearing the messaging cache hasn't made a difference, & I have used the stock messaging app & Hangouts & both are equally bad)