diff --git a/home.admin/00infoLCD.sh b/home.admin/00infoLCD.sh
index 9197105..77a7ef1 100755
--- a/home.admin/00infoLCD.sh
+++ b/home.admin/00infoLCD.sh
@@ -63,6 +63,13 @@ while :
         if [ ${bootstrapInfoExists} -eq 1 ]; then
           # load the data from the info file - overwrite state & message
           source /home/admin/raspiblitz.info
+          if [ "${state}" = "presync" ]; then
+            # get blockchain sync progress
+            blockchaininfo="$(bitcoin-cli -datadir=/mnt/hdd/bitcoin getblockchaininfo 2>/dev/null)"
+            if [ ${#blockchaininfo} -gt 0 ]; then
+              message="$(echo "${blockchaininfo}" | jq -r '.verificationprogress')"
+            fi
+          fi
         fi
 
         # setup process has not started yet
diff --git a/home.admin/00mainMenu.sh b/home.admin/00mainMenu.sh
index 533bb32..5da8787 100755
--- a/home.admin/00mainMenu.sh
+++ b/home.admin/00mainMenu.sh
@@ -12,10 +12,17 @@ if [ ${bootstrapInfoExists} -eq 1 ]; then
 
   # if pre-sync is running - stop it
   if [ "${state}" = "presync" ]; then
-    echo "TODO: Stop pre-sync ... press key to continue"
-    read key
+
+    # stopping the pre-sync
+    echo "Stopping pre-sync ..."
+    sudo systemctl stop bitcoind.service
+    sudo systemctl disable bitcoind.service
+    sudo rm /mnt/hdd/bitcoin/bitcoin.conf
+    sudo rm /etc/systemd/system/bitcoind.service
+
     # unmount the temporary mount
     sudo umount -l /mnt/hdd
+
     # update info file
     state=waitsetup
     echo "state=waitsetup" > $infoFile
diff --git a/home.admin/_bootstrap.sh b/home.admin/_bootstrap.sh
index c11d2e6..a23d639 100644
--- a/home.admin/_bootstrap.sh
+++ b/home.admin/_bootstrap.sh
@@ -174,13 +174,25 @@ if [ ${hddIsAutoMounted} -eq 0 ]; then
   echo "Check if HDD contains pre-loaded blockchain data .." >> $logFile
   blockchainDataExists=$(ls /mnt/hdd/bitcoin/blocks/blk00000.dat 2>/dev/null | grep -c '.dat')
   if [ ${blockchainDataExists} -eq 1 ]; then
-    // TODO: Pre-Sync Blockchain
-    echo "Found pre-loaded blockchain - TODO start pre-sync!" >> $logFile
+
+    # activating presync
+    # so that on a hackathon you can just connect a RaspiBlitz
+    # to the network and have it up-to-date for setting up
+    echo "Found pre-loaded blockchain - starting pre-sync" >> $logFile
+    sudo cp /home/admin/assets/bitcoin.conf /mnt/hdd/bitcoin/bitcoin.conf
+    sudo cp /home/admin/assets/bitcoind.service /etc/systemd/system/bitcoind.service
+    sudo chmod +x /etc/systemd/system/bitcoind.service
+    sudo systemctl enable bitcoind.service
+    sudo systemctl start bitcoind.service
+
+    # update info file
     echo "state=presync" > $infoFile
-    echo "message='TODO: start pre-sync'" >> $infoFile
+    echo "message='starting pre-sync'" >> $infoFile
     echo "device=${hddDeviceName}" >> $infoFile
+  
     # after admin login, presync will be stoped and HDD unmounted
     exit 1
+  
   else
     ls /mnt/hdd/bitcoin/blocks/blk00000.dat >> $logFile
     echo "OK - No blockchain data found" >> $logFile