diff --git a/app.py b/app.py
index 40f83e3..fd7faf5 100644
--- a/app.py
+++ b/app.py
@@ -3,6 +3,7 @@ from cgminer_api import CgminerAPI
 from config_manager import ConfigManager
 import os
 import subprocess
+import json
 
 app = Flask(__name__)
 app.secret_key = 'necrohash_miner_control_secret'
diff --git a/miner_wrapper.sh b/miner_wrapper.sh
index c3a20af..d3287ca 100755
--- a/miner_wrapper.sh
+++ b/miner_wrapper.sh
@@ -18,25 +18,11 @@ rm -f /tmp/cgminer-usb-*
 # Default mode
 MODE="sha256"
 
-if [ -f "$MODE_FILE" ]; then
-    MODE=$(cat "$MODE_FILE" | tr -d '[:space:]')
-fi
-
+# Force SHA256 flags (no --scrypt)
 FLAGS=""
 
-if [ "$MODE" == "scrypt" ]; then
-    FLAGS="--scrypt"
-elif [ "$MODE" == "dual" ]; then
-    FLAGS="--scrypt"
-else
-    # SHA256 Mode
-    # Some forks require explicitly disabling scrypt via config or lack of flag.
-    # We ensure no scrypt flag is passed.
-    FLAGS=""
-fi
-
 # Ensure correct pool is used (Debugging hint)
-echo "[$(date)] Starting miner in mode: $MODE with flags: '$FLAGS'" >> "$LOG_FILE"
+echo "[$(date)] Starting miner in SHA256 ONLY mode" >> "$LOG_FILE"
 echo "[$(date)] Config file: $CONF_FILE" >> "$LOG_FILE"
 
 # Execute cgminer
diff --git a/rebuild_sha.sh b/rebuild_sha.sh
new file mode 100755
index 0000000..cec80ad
--- /dev/null
+++ b/rebuild_sha.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# Rebuild cgminer strictly for SHA256 (Gridseed)
+
+if [ "$EUID" -ne 0 ]; then
+  echo "Bitte als root ausführen."
+  exit 1
+fi
+
+echo "=== Stoppe Miner ==="
+systemctl stop necrohash-miner
+
+echo "=== Bereinige alte Build-Dateien ==="
+cd /tmp
+rm -rf cgminer-gc3355
+
+echo "=== Clone dtbartle/cgminer-gc3355 ==="
+git clone https://github.com/dtbartle/cgminer-gc3355.git
+cd cgminer-gc3355
+
+echo "=== Konfiguriere Build (SHA256 Only) ==="
+export CFLAGS="-fcommon -O2"
+if [ -f "./autogen.sh" ]; then
+    ./autogen.sh
+else
+    autoreconf -ivf
+fi
+
+# WICHTIG: --disable-scrypt explizit setzen (obwohl default oft disable ist, aber hier sichergehen)
+# Und --enable-gridseed
+./configure --enable-gridseed --disable-scrypt --without-curses
+
+echo "=== Kompiliere... (Das dauert ca. 5-10 Minuten) ==="
+make -j1
+
+echo "=== Installiere ==="
+make install
+
+echo "=== Fertig ==="
+echo "Starte Miner neu..."
+systemctl start necrohash-miner
diff --git a/templates/settings.html b/templates/settings.html
index dceae30..d63f12f 100644
--- a/templates/settings.html
+++ b/templates/settings.html
@@ -20,12 +20,11 @@
                         <h5 class="card-title text-info mb-3">Allgemein</h5>
                         
                         <div class="mb-3">
-                            <label for="mining_mode" class="form-label text-white">Mining Modus</label>
-                            <select class="form-select bg-black text-white border-secondary" id="mining_mode" name="mining_mode">
-                                <option value="sha256" {% if mode == 'sha256' %}selected{% endif %}>SHA-256 (Bitcoin / Peercoin)</option>
-                                <option value="scrypt" {% if mode == 'scrypt' %}selected{% endif %}>Scrypt (Litecoin / Dogecoin)</option>
-                            </select>
-                            <div class="form-text text-muted">Ändert das Startverhalten des Miners.</div>
+                            <label class="form-label text-white">Mining Modus</label>
+                            <input type="text" class="form-control bg-black text-white border-secondary" value="SHA-256 Only (Bitcoin/Peercoin)" disabled>
+                            <div class="form-text text-muted">Diese Installation ist für SHA-256 optimiert.</div>
+                            <!-- Hidden field to keep code happy if it expects logic, though we ignore it now -->
+                            <input type="hidden" name="mining_mode" value="sha256">
                         </div>
 
                         <hr class="border-secondary">