other thn pie there is no root available. but be careful with PIE... i lost my LTE with pie.. i turned it off to save battery and when I turned it back on.. it wouldnt go to 4G LTE only 4G
4G LTE is the only 4G available for verizon. There is nothing else.
On AT&T and other GSM providers, HSPA+ is considered "4G" and so is LTE, but in the case of Verizon:
4G = 4G LTE = LTE they are all one and the same. The fallback for 4G on Verizon is 3G
3G = EVDO = EHRPD these are all the same. EHRPD is an enhanced version of EVDO that allows seamless handovers from LTE > EVDO while keeping the same IP address.
Likely, you just somehow changed your icon....or you are using a GSM Moto X, in which case your scenario does not apply to the OP.