diff --git a/firmware/config/stm32f7ems/efifeatures.h b/firmware/config/stm32f7ems/efifeatures.h
index dbacc90c30..cfeefaf1d8 100644
--- a/firmware/config/stm32f7ems/efifeatures.h
+++ b/firmware/config/stm32f7ems/efifeatures.h
@@ -56,6 +56,11 @@
 
 #define EFI_USE_COMPRESSED_INI_MSD
 
+// Disable ini ramdisk as a mitigation of https://github.com/rusefi/rusefi/issues/3775
+// See STM32F7.ld for more info
+#undef EFI_EMBED_INI_MSD
+#define EFI_EMBED_INI_MSD FALSE
+
 #undef ENABLE_PERF_TRACE
 #define ENABLE_PERF_TRACE TRUE
 
diff --git a/firmware/config/stm32h7ems/efifeatures.h b/firmware/config/stm32h7ems/efifeatures.h
index 040e248974..014a1e794d 100644
--- a/firmware/config/stm32h7ems/efifeatures.h
+++ b/firmware/config/stm32h7ems/efifeatures.h
@@ -26,6 +26,9 @@
 
 #define EFI_USE_COMPRESSED_INI_MSD
 
+#undef EFI_EMBED_INI_MSD
+#define EFI_EMBED_INI_MSD TRUE
+
 // H7 has dual bank, so flash on its own (low priority) thread so as to not block any other operations
 #define EFI_FLASH_WRITE_THREAD TRUE
 
diff --git a/firmware/hw_layer/ports/stm32/stm32f7/STM32F7.ld b/firmware/hw_layer/ports/stm32/stm32f7/STM32F7.ld
index c0ab2184db..794453617e 100644
--- a/firmware/hw_layer/ports/stm32/stm32f7/STM32F7.ld
+++ b/firmware/hw_layer/ports/stm32/stm32f7/STM32F7.ld
@@ -27,7 +27,8 @@
 MEMORY
 {
     bl          : org = 0x08000000, len = 16k       /* bootloader section */
-    flash0 (rx) : org = DEFINED(BOOTLOADER) ? 0x08008000 : 0x08000000, len = DEFINED(BOOTLOADER) ? (768k - 32k) : 768k  /* change address & length if bootloader */
+	/* TODO: 512k flash limit is a mitigation for https://github.com/rusefi/rusefi/issues/3566 and https://github.com/rusefi/rusefi/issues/3775 */
+    flash0 (rx) : org = DEFINED(BOOTLOADER) ? 0x08008000 : 0x08000000, len = DEFINED(BOOTLOADER) ? (512k - 32k) : 512k  /* change address & length if bootloader */
     flash1 (rx) : org = DEFINED(BOOTLOADER) ? 0x00208000 : 0x00200000, len = DEFINED(BOOTLOADER) ? (2m - 32k) : 2m /* Flash as ITCM */
     flash2 (rx) : org = 0x00000000, len = 0
     flash3 (rx) : org = 0x00000000, len = 0