Hello all. Thank you in advance for taking the time to read this mystery
When I insert a Verizon [only] SIM card into my device, it allows me to select LTE/CDMA, LTE/GSM or GLOBAL in the Preferred Networks tab. However, the only setting that works is LTE/CDMA. I understand that's because Verizon is CDMA so I am good with that....
--> now for the fun...
When I insert a multi-carrier SIM card in the same device, the Preferred Networks tab changes what the available options are. They are 4G, 3G or 2G. Ofcourse I select 4G because there is no sense in selecting any other option. The device works well on AT&T and Tmobile (GSM) roaming between both operators however it will not roam onto Verizon (CDMA)
I believe it's because the device thinks it's only looking for a GSM operator.
I put that exact Multi-carrier SIM card into another device that uses a Linux operating software and allows me to select "AUTO" on the network tab. This radio works very well as it switches between all operators. All 3 carriers work fine! AT&T, T-Mobile and Verizon!
Anyone with proTIPS that can assist me? My question is, would there be an APN I could load that can steer the radio into looking for GSM or CDMA as needed?
Is there another setting or operating system software I could ask my Manufacture to load into the Android device that would allow "AUTO"?
The radio device is running V7.1.1 (although I noticed it on V10 also)
Thanks a ton!
When I insert a Verizon [only] SIM card into my device, it allows me to select LTE/CDMA, LTE/GSM or GLOBAL in the Preferred Networks tab. However, the only setting that works is LTE/CDMA. I understand that's because Verizon is CDMA so I am good with that....
--> now for the fun...
When I insert a multi-carrier SIM card in the same device, the Preferred Networks tab changes what the available options are. They are 4G, 3G or 2G. Ofcourse I select 4G because there is no sense in selecting any other option. The device works well on AT&T and Tmobile (GSM) roaming between both operators however it will not roam onto Verizon (CDMA)
I believe it's because the device thinks it's only looking for a GSM operator.
I put that exact Multi-carrier SIM card into another device that uses a Linux operating software and allows me to select "AUTO" on the network tab. This radio works very well as it switches between all operators. All 3 carriers work fine! AT&T, T-Mobile and Verizon!
Anyone with proTIPS that can assist me? My question is, would there be an APN I could load that can steer the radio into looking for GSM or CDMA as needed?
Is there another setting or operating system software I could ask my Manufacture to load into the Android device that would allow "AUTO"?
The radio device is running V7.1.1 (although I noticed it on V10 also)
Thanks a ton!