T-Mobile 4G LTE Bands Not Working on Exynos Galaxy S9/S9+!

It seems like Samsung has made some changes to the international Exynos Galaxy S9/S9+ and not all T-Mobile 4G LTE bands are supported this year unlike previous Galaxy phones. AT&T is not affected but if you are on T-Mobile, just know you may get stuck on HSPA+ most of the time if you buy the international Exynos Galaxy S9/S9+ models.

Update: The issue has been fully fixed after doing a software update, it was an early bug that is fixed easily with software update.  4G LTE works great now and picking up 4G+ signals also, please disregard this post thanks.

Affected models:
SM-G960F, SM-G960FD, SM-G960F/DS
SM-G965F, SM-G965FD, SM-G965F/DS

A good alternative is any previous Galaxy international models like the Galaxy Note 8, S8, S8 Plus, S7, and S7 Edge, they all support T-Mobile 4G bands fine.


11 Responses

  1. Luke says:

    Hey, so I have been watching your videos on the exynos S9+ and I was thinking about getting one. Have you managed to figure out the connection to t mobile? If you could let me know if it fixed itself or what you did to fix it that would be much appreciated. Also I have read that the 4G connection speeds are throttled even by those that did get 4G, has this been addressed?

  2. Rk says:

    I did the software update but I don’t see LTE as an option in network mode. I only see 4g/3g/2g and I am not getting LTE. Any help would be appreciated

  3. Robert says:

    Hi, I tried connecting my Galaxy s9+ (exynos version) to T-mobile and I am only getting speeds of 1mb/s. For some reason it isn’t connecting to LTE. Do you know if there is anything that I could do to fix it?

  4. shrikant says:

    I have S9+ ds965 ds international version. I use T Mobile and do not see the LTE signal, all i see is the 4G, where the voice / signal is poor. It works fine when i change it to 2G/3G in setting. Also do not see VOLTE option / WIFI Calling. Have already updated to latest version of firmware.

  5. Binny says:

    Hellp m also having 4g issue on my s9 plus and ihv checked the software update well i have no update yet so is there any way to fix this issue

  6. Joe Riddell says:

    I guess your not looking at this post anymore? I want to buy the SM-G965F/DS but we are in a 600mhz Band 71 area in the US.
    Thinking it won’t be a smart buy. Any advice?

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Max Lee

Max Lee is the founder of HighOnAndroid.com. Max makes Android tutorials and review videos for people who want to get high on Android over at his YouTube channel and Korean YouTube channel.