diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4d511dcd..654060c85 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 * Infrared: Update universal remote assets (by @amec0e)
 * GUI Keyboard: Fix crash when renaming files with long file name (Fixed issue #489)
 * Misc: Fix APP_IDs to match new regex (regex check will be added in OFW soon)
+* Plugins: Protoview, WAV Player, DTMF Dolphin - fixed all known crashes, ported to latest hal bus system
 * Plugins: ESP8266 Deauther - Crash fix (Fixed issue #497)
 * Plugins: Update -> Mifare Nested [(by AloneLiberty)](https://github.com/AloneLiberty/FlipperNested)
 * Plugins: Update -> TOTP (Authenticator) [(by akopachov)](https://github.com/akopachov/flipper-zero_authenticator)
diff --git a/applications/external/dtmf_dolphin/dtmf_dolphin_audio.c b/applications/external/dtmf_dolphin/dtmf_dolphin_audio.c
index 2ec24c7ba..66d17bc2e 100644
--- a/applications/external/dtmf_dolphin/dtmf_dolphin_audio.c
+++ b/applications/external/dtmf_dolphin/dtmf_dolphin_audio.c
@@ -214,12 +214,12 @@ bool dtmf_dolphin_audio_play_tones(
     generate_waveform(current_player, 0);
     generate_waveform(current_player, current_player->half_buffer_length);
 
-    dtmf_dolphin_speaker_init();
     dtmf_dolphin_dma_init((uint32_t)current_player->sample_buffer, current_player->buffer_length);
 
     furi_hal_interrupt_set_isr(
         FuriHalInterruptIdDma1Ch1, dtmf_dolphin_audio_dma_isr, current_player->queue);
     if(furi_hal_speaker_acquire(1000)) {
+        dtmf_dolphin_speaker_init();
         dtmf_dolphin_dma_start();
         dtmf_dolphin_speaker_start();
         current_player->playing = true;
diff --git a/applications/external/protoview/app_subghz.c b/applications/external/protoview/app_subghz.c
index 69197df5c..dcb6d492b 100644
--- a/applications/external/protoview/app_subghz.c
+++ b/applications/external/protoview/app_subghz.c
@@ -173,6 +173,8 @@ void protoview_timer_isr(void* ctx) {
 void raw_sampling_worker_start(ProtoViewApp* app) {
     UNUSED(app);
 
+    furi_hal_bus_enable(FuriHalBusTIM2);
+
     LL_TIM_InitTypeDef tim_init = {
         .Prescaler = 63, /* CPU frequency is ~64Mhz. */
         .CounterMode = LL_TIM_COUNTERMODE_UP,
@@ -195,6 +197,6 @@ void raw_sampling_worker_stop(ProtoViewApp* app) {
     LL_TIM_DisableCounter(TIM2);
     LL_TIM_DisableIT_UPDATE(TIM2);
     furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
-    LL_TIM_DeInit(TIM2);
+    furi_hal_bus_disable(FuriHalBusTIM2);
     FURI_CRITICAL_EXIT();
 }
diff --git a/applications/external/protoview/protocols/unknown.c b/applications/external/protoview/protocols/unknown.c
index 9e2f4a893..ec87d59b9 100644
--- a/applications/external/protoview/protocols/unknown.c
+++ b/applications/external/protoview/protocols/unknown.c
@@ -251,7 +251,7 @@ static bool decode(uint8_t* bits, uint32_t numbytes, uint32_t numbits, ProtoView
         linecode = LineCodeManchester;
         start1 = tmp1;
         msgbits = manchester_bits * 2;
-        FURI_LOG_E(TAG, "MANCHESTER START: %lu", tmp1);
+        //FURI_LOG_T(TAG, "MANCHESTER START: %lu", tmp1);
     }
 
     if(linecode == LineCodeNone) return false;
@@ -284,11 +284,11 @@ static bool decode(uint8_t* bits, uint32_t numbytes, uint32_t numbits, ProtoView
                                * transfer all that is needed, like a message
                                * terminator (that we don't detect). */
 
-    if(preamble_found) FURI_LOG_E(TAG, "PREAMBLE AT: %lu", preamble_start);
-    FURI_LOG_E(TAG, "START: %lu", info->start_off);
-    FURI_LOG_E(TAG, "MSGBITS: %lu", msgbits);
-    FURI_LOG_E(TAG, "DATASTART: %lu", start1);
-    FURI_LOG_E(TAG, "PULSES: %lu", info->pulses_count);
+    /*if(preamble_found) FURI_LOG_T(TAG, "PREAMBLE AT: %lu", preamble_start);
+    FURI_LOG_T(TAG, "START: %lu", info->start_off);
+    FURI_LOG_T(TAG, "MSGBITS: %lu", msgbits);
+    FURI_LOG_T(TAG, "DATASTART: %lu", start1);
+    FURI_LOG_T(TAG, "PULSES: %lu", info->pulses_count);*/
 
     /* We think there is a message and we know where it starts and the
      * line code used. We can turn it into bits and bytes. */
diff --git a/applications/external/protoview/view_direct_sampling.c b/applications/external/protoview/view_direct_sampling.c
index 0268e5297..84486dc51 100644
--- a/applications/external/protoview/view_direct_sampling.c
+++ b/applications/external/protoview/view_direct_sampling.c
@@ -137,6 +137,8 @@ static void ds_timer_isr(void* ctx) {
 static void direct_sampling_timer_start(ProtoViewApp* app) {
     DirectSamplingViewPrivData* privdata = app->view_privdata;
 
+    furi_hal_bus_enable(FuriHalBusTIM2);
+
     LL_TIM_InitTypeDef tim_init = {
         .Prescaler = 63, /* CPU frequency is ~64Mhz. */
         .CounterMode = LL_TIM_COUNTERMODE_UP,
@@ -157,6 +159,6 @@ static void direct_sampling_timer_stop(ProtoViewApp* app) {
     LL_TIM_DisableCounter(TIM2);
     LL_TIM_DisableIT_UPDATE(TIM2);
     furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
-    LL_TIM_DeInit(TIM2);
+    furi_hal_bus_disable(FuriHalBusTIM2);
     FURI_CRITICAL_EXIT();
 }
diff --git a/applications/external/wav_player/wav_player.c b/applications/external/wav_player/wav_player.c
index 8f3273131..3a48f41e8 100644
--- a/applications/external/wav_player/wav_player.c
+++ b/applications/external/wav_player/wav_player.c
@@ -357,12 +357,12 @@ static void app_run(WavPlayerApp* app) {
     bool eof = fill_data(app, 0);
     eof = fill_data(app, app->samples_count_half);
 
-    wav_player_speaker_init(app->sample_rate);
-    wav_player_dma_init((uint32_t)app->sample_buffer, app->samples_count);
-
-    furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, wav_player_dma_isr, app->queue);
-
     if(furi_hal_speaker_acquire(1000)) {
+        wav_player_speaker_init(app->sample_rate);
+        wav_player_dma_init((uint32_t)app->sample_buffer, app->samples_count);
+
+        furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, wav_player_dma_isr, app->queue);
+
         wav_player_dma_start();
         wav_player_speaker_start();
 
@@ -440,6 +440,9 @@ static void app_run(WavPlayerApp* app) {
         furi_hal_speaker_release();
     }
 
+    // Reset GPIO pin and bus states
+    wav_player_hal_deinit();
+
     furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, NULL, NULL);
 }
 
diff --git a/applications/external/wav_player/wav_player_hal.c b/applications/external/wav_player/wav_player_hal.c
index 40f7a3ff5..cf2688523 100644
--- a/applications/external/wav_player/wav_player_hal.c
+++ b/applications/external/wav_player/wav_player_hal.c
@@ -17,6 +17,9 @@
 #define DMA_INSTANCE DMA1, LL_DMA_CHANNEL_1
 
 void wav_player_speaker_init(uint32_t sample_rate) {
+    // Enable bus
+    furi_hal_bus_enable(FuriHalBusTIM2);
+
     LL_TIM_InitTypeDef TIM_InitStruct = {0};
     //TIM_InitStruct.Prescaler = 4;
     TIM_InitStruct.Prescaler = 1;
@@ -56,6 +59,13 @@ void wav_player_speaker_init(uint32_t sample_rate) {
         GpioAltFn14TIM16);
 }
 
+void wav_player_hal_deinit() {
+    furi_hal_gpio_init(&gpio_ext_pa6, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
+
+    // Disable bus
+    furi_hal_bus_disable(FuriHalBusTIM2);
+}
+
 void wav_player_speaker_start() {
     LL_TIM_EnableAllOutputs(FURI_HAL_SPEAKER_TIMER);
     LL_TIM_EnableCounter(FURI_HAL_SPEAKER_TIMER);
diff --git a/applications/external/wav_player/wav_player_hal.h b/applications/external/wav_player/wav_player_hal.h
index 124f51406..bddfc3fed 100644
--- a/applications/external/wav_player/wav_player_hal.h
+++ b/applications/external/wav_player/wav_player_hal.h
@@ -18,6 +18,8 @@ void wav_player_dma_start();
 
 void wav_player_dma_stop();
 
+void wav_player_hal_deinit();
+
 #ifdef __cplusplus
 }
 #endif
\ No newline at end of file