Highlight US modem limitations in README

Reformatted note for US users regarding modem limitations.
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pelgraine
2026-07-14 19:33:37 +10:00
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@@ -768,7 +768,7 @@ While in compose mode, press the **$** key to open the emoji picker. A scrollabl
Press **T** from the home screen to open the SMS & Phone app. The app opens to a menu screen where you can choose between the **Phone** dialer (for calling any number) or the **SMS Inbox** (for messaging and calling saved contacts). The SMS Inbox entry shows the number of unread received messages in brackets (e.g. **SMS Inbox [3]**); the badge disappears once everything is read.
# Note for US users: the A7682E modem in the T-Deck Pro and T-Deck Pro Max supports very limited US cellular bands, so 4G is almost entirely unusable with US SIMs. For example, the 4G is wholly unusable on T-Mobile and may have very limited use on AT&T, due to the nature of the A7682E and the bands used by it.
**Note for US users: the A7682E modem in the T-Deck Pro and T-Deck Pro Max supports very limited US cellular bands, so 4G is almost entirely unusable with US SIMs. For example, the 4G is wholly unusable on T-Mobile and may have very limited use on AT&T, due to the nature of the A7682E and the bands used by it.**
For full documentation including key mappings, dialpad usage, contacts management, and troubleshooting, see the [SMS & Phone App Guide](SMS___Phone_App_Guide.md).
@@ -1487,4 +1487,4 @@ However, this firmware links against libraries with different license terms. Bec
¹ Includes INA219, INA260, INA3221, AHTX0, BME280, BMP280, BME680, BMP085, SHTC3, MLX90614, VL53L0X — all MIT or BSD licensed. Used via the sensor manager for optional environmental monitoring.
Full license texts for each dependency are available in their respective repositories linked above.
Full license texts for each dependency are available in their respective repositories linked above.