Some 4G SIM cards will not support 3G-only radios. If that’s the case, using a small trick, you can make the Android radio think it is 4G and still allow it to run 3G, using a 4G-only SIM.<\/p>\n
Here, is the 4-step procedure:<\/p>\n
1 – Dial *#*#3646633#*#* (This will enter the engineer menu) Your device will now run on 3G speed, connected to the 3G network but using a 4G-only SIM card.<\/p>\n","protected":false},"excerpt":{"rendered":" Some 4G SIM cards will not support 3G-only radios. If that’s the case, using a small trick, you can make the Android radio think it is 4G and still allow it to run 3G, using a 4G-only SIM. Here, is the 4-step procedure: 1 – Dial *#*#3646633#*#* (This will enter the engineer menu) 2 – […]<\/p>\n","protected":false},"author":1,"featured_media":925,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,23],"tags":[],"class_list":["post-1715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amateur-radio","category-zello-operation"],"_links":{"self":[{"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/posts\/1715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/comments?post=1715"}],"version-history":[{"count":7,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/posts\/1715\/revisions"}],"predecessor-version":[{"id":1722,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/posts\/1715\/revisions\/1722"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/media\/925"}],"wp:attachment":[{"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/media?parent=1715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/categories?post=1715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/network-radios.com\/index.php\/wp-json\/wp\/v2\/tags?post=1715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n2 – Now, select Preferred Network Option<\/strong>
\n3 – In the drop down list, you need to select 4G LTE\/WCDMA\/GSM<\/strong>. Then, save and reboot the radio.
\n4 – Once done, just insert a 4G SIM in the first SIM slot and you may keep the second SIM slot empty.<\/p>\n