found the gta2xllte modem name for LTE connectivity SM-T595

[Namitjain07]

https://www.qualcomm.com/content/dam/qcomm-martech/dm-assets/documents/snapdragon-450-mobile-platform-product-brief_0.pdf

Snapdragon X9 LTE Modem

• X9 LTE with 2x20Mz carrier
  aggregation
• Cat 7 downlink, up to 300 Mbps;
  up to 4x 75Mbps LTE streams
• Cat 13 uplink, up to 150 Mbps; up to
  2x 75Mbps LTE streams
• Snapdragon Upload+
• Up to 64-QAM
• Snapdragon All Mode LTE FDD,
  LTE TDD, WCDMA (DB-DCHSDPA, DC-HSUPA), TD-SCDMA,
  EV-DO, CDMA1x, and GSM/EDGE
• Qualcomm RF360 front end
  solution
• Support for LTE Broadcast, LTE
  multimode dual SIM and VoLTE
  with HD Voice and SRVCC

[UDPSendToFailed]

Hi!

Thank you for your research on this! However, the reason this ROM doesn't have LTE support is that I have the WiFi-only model, which makes it impossible for me to test changes related to this.

Even on the WiFi model, I haven't had success with making the GPS work (which uses the same proprietary QMI interface as the LTE modem) for years because of Samsung's changes to the firmware, and this is especially true with LTE which would be much more complicated to fix.

Sadly I just don't have the experience for fixing this since this is the first ever device I ported Android to. The best I can do is allowing installation on SM-T595 and treat it like SM-T590 in the ROM. If someone more experienced shows up someday who has the LTE model and is interested in solving this issue, they are free to use my sources as a base, but for me, this is way over my knowledge level considering that I couldn't even get the GPS to work.