crwdns2933897:0crwdne2933897:0

Fail to access 4G/LTE only 2G

LG K7 from T-Mobile US; I am using in Tanzania, the mobile data reads only 2G. It seems that LTE bands differ with those in the phone which is B1,3 &12, while in East Africa(Tanzania) is using B20

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0