diff --git a/bsp_q7s/fs/SdCardManager.cpp b/bsp_q7s/fs/SdCardManager.cpp
index 29225899..89d3aaff 100644
--- a/bsp_q7s/fs/SdCardManager.cpp
+++ b/bsp_q7s/fs/SdCardManager.cpp
@@ -312,7 +312,6 @@ void SdCardManager::resetState() {
 ReturnValue_t SdCardManager::updateSdStatePair() {
   using namespace std;
 
-  MutexGuard mg(sdLock, LOCK_TYPE, SD_LOCK_TIMEOUT, LOCK_CTX);
   std::error_code e;
   if (not filesystem::exists(SD_STATE_FILE, e)) {
     return STATUS_FILE_NEXISTS;
@@ -362,6 +361,7 @@ void SdCardManager::processSdStatusLine(std::string& line, uint8_t& idx, sd::SdC
           sdStates.second = sd::SdState::ON;
         }
       } else if (word == "off") {
+        MutexGuard mg(sdLock, LOCK_TYPE, SD_LOCK_TIMEOUT, LOCK_CTX);
         if (currentSd == sd::SdCard::SLOT_0) {
           sdStates.first = sd::SdState::OFF;
         } else {
@@ -371,6 +371,7 @@ void SdCardManager::processSdStatusLine(std::string& line, uint8_t& idx, sd::SdC
     }
 
     if (mountLine) {
+      MutexGuard mg(sdLock, LOCK_TYPE, SD_LOCK_TIMEOUT, LOCK_CTX);
       if (currentSd == sd::SdCard::SLOT_0) {
         sdStates.first = sd::SdState::MOUNTED;
       } else {
@@ -409,7 +410,6 @@ ReturnValue_t SdCardManager::updateSdCardStateFile() {
   if (cmdExecutor.getCurrentState() == CommandExecutor::States::PENDING) {
     return CommandExecutor::COMMAND_PENDING;
   }
-  MutexGuard mg(sdLock, LOCK_TYPE, SD_LOCK_TIMEOUT, LOCK_CTX);
   // Use q7hw utility and pipe the command output into the state file
   std::string updateCmd = "q7hw sd info all > " + std::string(SD_STATE_FILE);
   cmdExecutor.load(updateCmd, true, printCmdOutput);
diff --git a/bsp_q7s/fs/SdCardManager.h b/bsp_q7s/fs/SdCardManager.h
index cee06894..b7e2a09f 100644
--- a/bsp_q7s/fs/SdCardManager.h
+++ b/bsp_q7s/fs/SdCardManager.h
@@ -228,7 +228,7 @@ class SdCardManager : public SystemObject, public SdCardMountedIF {
   MutexIF* prefLock = nullptr;
   MutexIF* defaultLock = nullptr;
   static constexpr MutexIF::TimeoutType LOCK_TYPE = MutexIF::TimeoutType::WAITING;
-  static constexpr uint32_t SD_LOCK_TIMEOUT = 250;
+  static constexpr uint32_t SD_LOCK_TIMEOUT = 100;
   static constexpr uint32_t OTHER_TIMEOUT = 20;
   static constexpr char LOCK_CTX[] = "SdCardManager";