I have had almost full signal everywhere in my home town, (including the basement at my work) until I upgraded my S5 the other night. Now I can barely get 1 bar if I'm lucky. Any suggestions?
Try reseating the SIM card and ensure that mobile network is set to LTE/CDMA.
same issues......my mode changed to gsm, should be lte/cdma.
settings/more networks/mobile networks....sim card needs to be removed/reinserted.
Thanks so much to both of you! My signal is much better now.