Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.

My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.

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diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index dbb5843..8802fb5 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -244,3 +244,4 @@ test_touchscreen.c
 #endif
 test_viewports.c
 #endif
+test_disk.c
diff --git a/firmware/target/arm/as3525/sd-as3525.c b/firmware/target/arm/as3525/sd-as3525.c
index 19914ab..6f94414 100644
--- a/firmware/target/arm/as3525/sd-as3525.c
+++ b/firmware/target/arm/as3525/sd-as3525.c
@@ -397,6 +397,9 @@ static int sd_init_card(const int drive)
         mci_delay();
     }

+    if(!send_cmd(INTERNAL_AS3525, SD_DESELECT_CARD, 0, MCI_NO_FLAGS, NULL))
+        panicf("desel init failed");
+
     card_info[drive].initialized = 1;

     return 0;
@@ -701,6 +704,9 @@ static int sd_transfer_sectors(IF_MD2(int drive,) unsigned long start,

     last_disk_activity = current_tick;

+    if(!send_cmd(INTERNAL_AS3525, SD_SELECT_CARD, card_info[INTERNAL_AS3525].rca, MCI_NO_FLAGS, NULL))
+        panicf("sel failed");
+
     dma_retain();

     while(count)
@@ -821,6 +827,9 @@ static int sd_transfer_sectors(IF_MD2(int drive,) unsigned long start,

 sd_transfer_error:

+    if(!send_cmd(INTERNAL_AS3525, SD_DESELECT_CARD, 0, MCI_NO_FLAGS, NULL))
+        panicf("desel 0 failed");
+
     dma_release();

 #ifndef BOOTLOADER