diff --git a/firmware/application/transmitter_model.cpp b/firmware/application/transmitter_model.cpp
index 00d19e97d..b50194fa2 100644
--- a/firmware/application/transmitter_model.cpp
+++ b/firmware/application/transmitter_model.cpp
@@ -72,19 +72,31 @@ void TransmitterModel::set_channel_bandwidth(uint32_t v) {
 }
 
 uint8_t TransmitterModel::tx_gain() const {
+    if (persistent_memory::config_tx_disabled()) {
+        return 0;
+    }
     return std::min(settings_.tx_gain_db, portapack::persistent_memory::config_tx_gain_max_db());
 }
 
 void TransmitterModel::set_tx_gain(uint8_t v_db) {
-    settings_.tx_gain_db = v_db;
+    uint8_t newgain = v_db;
+    if (persistent_memory::config_tx_disabled()) {
+        newgain = 0;
+    } else if (v_db > portapack::persistent_memory::config_tx_gain_max_db()) {
+        newgain = portapack::persistent_memory::config_tx_gain_max_db();
+    }
+    settings_.tx_gain_db = newgain;
     update_tx_gain();
 }
 
 bool TransmitterModel::rf_amp() const {
-    return settings_.rf_amp && !portapack::persistent_memory::config_tx_amp_disabled();
+    return settings_.rf_amp && !portapack::persistent_memory::config_tx_amp_disabled() && !portapack::persistent_memory::config_tx_disabled();
 }
 
 void TransmitterModel::set_rf_amp(bool enabled) {
+    if (enabled && (portapack::persistent_memory::config_tx_amp_disabled() || portapack::persistent_memory::config_tx_disabled())) {
+        return;
+    }
     settings_.rf_amp = enabled;
     update_rf_amp();
 }
diff --git a/firmware/application/ui/ui_transmitter.cpp b/firmware/application/ui/ui_transmitter.cpp
index fbc87e760..cf5bd9687 100644
--- a/firmware/application/ui/ui_transmitter.cpp
+++ b/firmware/application/ui/ui_transmitter.cpp
@@ -39,7 +39,13 @@ using namespace portapack;
 namespace ui {
 
 /* Gets a style indicating total TX gain level. */
-static const Style* get_style_for_gain(uint8_t tot_gain) {
+static const Style* get_style_for_gain(uint8_t tot_gain, uint8_t gain) {
+    if (persistent_memory::config_tx_disabled()) {
+        return Theme::getInstance()->fg_dark;  // disabled color
+    }
+    if (gain == persistent_memory::config_tx_gain_max_db() && gain != max2837::tx::gain_db_range.maximum) {  // only if limited
+        return Theme::getInstance()->fg_cyan;
+    }
     if (tot_gain > POWER_THRESHOLD_HIGH) return Theme::getInstance()->fg_red;
 
     if (tot_gain > POWER_THRESHOLD_MED)
@@ -50,7 +56,21 @@ static const Style* get_style_for_gain(uint8_t tot_gain) {
 
     return nullptr;  // Uses default.
 }
+static const Style* get_style_for_amp(uint8_t tot_gain) {
+    if (persistent_memory::config_tx_disabled() || persistent_memory::config_tx_amp_disabled()) {
+        return Theme::getInstance()->fg_dark;  // disabled color
+    }
 
+    if (tot_gain > POWER_THRESHOLD_HIGH) return Theme::getInstance()->fg_red;
+
+    if (tot_gain > POWER_THRESHOLD_MED)
+        return Theme::getInstance()->fg_orange;
+
+    if (tot_gain > POWER_THRESHOLD_LOW)
+        return Theme::getInstance()->fg_yellow;
+
+    return nullptr;  // Uses default.
+}
 /* TransmitterView *******************************************************/
 
 void TransmitterView::paint(Painter& painter) {
@@ -95,12 +115,12 @@ void TransmitterView::on_tx_amp_changed(bool rf_amp) {
 
 void TransmitterView::update_gainlevel_styles() {
     int8_t tot_gain = transmitter_model.tx_gain() + (transmitter_model.rf_amp() ? 14 : 0);
-    auto style = get_style_for_gain(tot_gain);
-
+    auto style = get_style_for_gain(tot_gain, transmitter_model.tx_gain());
+    auto styleamp = get_style_for_amp(tot_gain);
     field_gain.set_style(style);
     text_gain.set_style(style);
-    field_amp.set_style(style);
-    text_amp.set_style(style);
+    field_amp.set_style(styleamp);
+    text_amp.set_style(styleamp);
 }
 
 void TransmitterView::set_transmitting(const bool transmitting) {
@@ -199,6 +219,24 @@ TransmitterView::TransmitterView(
                 on_start();
         }
     };
+
+    if (persistent_memory::config_tx_amp_disabled() || persistent_memory::config_tx_disabled()) {  // amp disabled / tx disabled
+        field_amp.set_value(0);
+        field_amp.set_focusable(false);
+    }
+
+    if (persistent_memory::config_tx_disabled()) {  // tx disabled
+        field_gain.set_value(0);
+        field_gain.set_focusable(false);
+    } else {
+        if (persistent_memory::config_tx_gain_max_db() < max2837::tx::gain_db_range.maximum) {
+            field_gain.set_range(max2837::tx::gain_db_range.minimum, persistent_memory::config_tx_gain_max_db());
+            if (field_gain.value() > persistent_memory::config_tx_gain_max_db()) {
+                field_gain.set_value(persistent_memory::config_tx_gain_max_db());
+            }
+        }
+    }
+    update_gainlevel_styles();
 }
 
 TransmitterView::~TransmitterView() {
@@ -252,16 +290,34 @@ TransmitterView2::TransmitterView2(Point pos, bool short_ui) {
         update_gainlevel_styles();
     };
 
+    if (persistent_memory::config_tx_amp_disabled() || persistent_memory::config_tx_disabled()) {  // amp disabled / tx disabled
+        field_amp.set_value(0);
+        field_amp.set_focusable(false);
+    }
+
+    if (persistent_memory::config_tx_disabled()) {  // tx disabled
+        field_gain.set_value(0);
+        field_gain.set_focusable(false);
+    } else {
+        if (persistent_memory::config_tx_gain_max_db() < max2837::tx::gain_db_range.maximum) {
+            field_gain.set_range(max2837::tx::gain_db_range.minimum, persistent_memory::config_tx_gain_max_db());
+            if (field_gain.value() > persistent_memory::config_tx_gain_max_db()) {
+                field_gain.set_value(persistent_memory::config_tx_gain_max_db());
+            }
+        }
+    }
+
     update_gainlevel_styles();
 }
 
 void TransmitterView2::update_gainlevel_styles() {
     int8_t tot_gain = transmitter_model.tx_gain() + (transmitter_model.rf_amp() ? 14 : 0);
-    auto style = get_style_for_gain(tot_gain);
+    auto style = get_style_for_gain(tot_gain, transmitter_model.tx_gain());
+    auto styleamp = get_style_for_amp(tot_gain);
 
     text_labels.set_style(style);
     field_gain.set_style(style);
-    field_amp.set_style(style);
+    field_amp.set_style(styleamp);
 }
 
 } /* namespace ui */
\ No newline at end of file
diff --git a/firmware/application/usb_serial_shell.cpp b/firmware/application/usb_serial_shell.cpp
index 0c0a7685a..886771af2 100644
--- a/firmware/application/usb_serial_shell.cpp
+++ b/firmware/application/usb_serial_shell.cpp
@@ -157,7 +157,7 @@ static void cmd_flash(BaseSequentialStream* chp, int argc, char* argv[]) {
     // call nav with flash
     auto open_view = nav->push<ui::FlashUtilityView>();
     chprintf(chp, "Flashing started\r\n");
-    chThdSleepMilliseconds(50);     // to give display some time to paint the screen
+    chThdSleepMilliseconds(150);    // to give display some time to paint the screen
     open_view->wait_till_loaded();  // also wait for first frame sync
     if (!open_view->flash_firmware(path.native())) {
         chprintf(chp, "error\r\n");