diff --git a/src/HowBadIsMyBatch.ipynb b/src/HowBadIsMyBatch.ipynb
index 758eb882374..359655a9b88 100644
--- a/src/HowBadIsMyBatch.ipynb
+++ b/src/HowBadIsMyBatch.ipynb
@@ -110,29 +110,31 @@
     "        service = ChromeService(executable_path = ChromeDriverManager().install()),\n",
     "        options = _getOptions(downloadDir, isHeadless))\n",
     "\n",
-    "def saveCaptchaImageAs(captchaImageFile):\n",
+    "def saveCaptchaImageAs(driver, captchaImageFile):\n",
     "    captchaImage = driver.find_element(By.CSS_SELECTOR, \"img[src='captchaImage']\")\n",
     "    with open(captchaImageFile, 'wb') as file:\n",
     "        file.write(captchaImage.screenshot_as_png)\n",
     "\n",
-    "def existsElementWithId(id):\n",
-    "    return len(driver.find_elements(By.ID, id)) > 0"
+    "def existsElementWithId(driver, id):\n",
+    "    return len(driver.find_elements(By.ID, id)) > 0\n",
+    "\n",
+    "def isCaptchaSolved(driver):\n",
+    "    return not existsElementWithId(driver, \"wordverify\")"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "8ac81845",
+   "id": "aef4d1c3",
    "metadata": {},
    "outputs": [],
    "source": [
-    "downloadDir = \"/home/frankknoll/Dokumente/Corona/projects/HowBadIsMyBatch/src/VAERS/tmp\"\n",
-    "file2Download = '2022VAERSData.zip'\n",
-    "captchaImageFile = 'captchaImage.jpeg'\n",
+    "import time\n",
+    "import os.path\n",
     "\n",
-    "driver = getWebDriver(downloadDir, isHeadless = False)\n",
-    "driver.get('https://vaers.hhs.gov/eSubDownload/index.jsp?fn=' + file2Download)\n",
-    "saveCaptchaImageAs(captchaImageFile)"
+    "def waitUntilDownloadHasFinished(file):\n",
+    "    while not os.path.exists(file):\n",
+    "        time.sleep(2)"
    ]
   },
   {
@@ -162,41 +164,34 @@
     "class AndroidEmulator:\n",
     "    \n",
     "    @staticmethod\n",
-    "    def runWithinEmulator(runnable):\n",
-    "        AndroidEmulator._startEmulator()\n",
+    "    def run(runnable):\n",
+    "        AndroidEmulator._start()\n",
     "        result = runnable()\n",
-    "        AndroidEmulator._stopEmulator()\n",
+    "        AndroidEmulator._stop()\n",
     "        return result\n",
     "    \n",
     "    @staticmethod\n",
-    "    def _startEmulator():\n",
+    "    def _start():\n",
     "        os.system(\"/home/frankknoll/Android/Sdk/emulator/emulator -avd Pixel_2_API_30 -no-window &\")\n",
     "\n",
     "    @staticmethod\n",
-    "    def _stopEmulator():\n",
-    "        ! adb emu kill\n"
+    "    def _stop():\n",
+    "        ! adb emu kill"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "c113e49d",
-   "metadata": {
-    "scrolled": false
-   },
-   "outputs": [],
-   "source": [
-    "textInCaptchaImage = AndroidEmulator.runWithinEmulator(lambda: getTextInCaptchaImage(captchaImageFile))"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "2dfc95c3",
+   "id": "8eef224c",
    "metadata": {},
    "outputs": [],
    "source": [
-    "textInCaptchaImage"
+    "downloadDir = \"/home/frankknoll/Dokumente/Corona/projects/HowBadIsMyBatch/src/VAERS/tmp\"\n",
+    "file2Download = '2022VAERSData.zip'\n",
+    "captchaImageFile = 'captchaImage.jpeg'\n",
+    "\n",
+    "driver = getWebDriver(downloadDir, isHeadless = False)\n",
+    "driver.get('https://vaers.hhs.gov/eSubDownload/index.jsp?fn=' + file2Download)"
    ]
   },
   {
@@ -206,57 +201,25 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "driver.find_element(By.ID, \"verificationCode\").send_keys(textInCaptchaImage)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "6cf55175",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "driver.find_element(By.CSS_SELECTOR, '[name=\"downloadbut\"]').click()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "86e5056f",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "def isCaptchaSolved():\n",
-    "    return not existsElementWithId(\"wordverify\")"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "b6b47c06",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import time\n",
-    "import os.path\n",
+    "def solveCaptcha(driver, captchaImageFile):\n",
+    "    saveCaptchaImageAs(driver, captchaImageFile)\n",
+    "    textInCaptchaImage = AndroidEmulator.run(lambda: getTextInCaptchaImage(captchaImageFile))\n",
+    "    display('textInCaptchaImage: ', textInCaptchaImage)\n",
+    "    driver.find_element(By.ID, \"verificationCode\").send_keys(textInCaptchaImage)\n",
+    "    driver.find_element(By.CSS_SELECTOR, '[name=\"downloadbut\"]').click()\n",
     "\n",
-    "def waitUntilDownloadHasFinished():\n",
-    "    while not os.path.exists(downloadDir + \"/\" + file2Download):\n",
-    "        time.sleep(2)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "b1ebc05c",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "if isCaptchaSolved():\n",
-    "    waitUntilDownloadHasFinished()\n",
+    "maxTries = 5\n",
+    "tryNum = 1\n",
+    "solveCaptcha(driver, captchaImageFile)\n",
+    "while(not isCaptchaSolved(driver) and tryNum <= maxTries):\n",
+    "    solveCaptcha(driver, captchaImageFile)\n",
+    "    tryNum = tryNum + 1\n",
+    "\n",
+    "if isCaptchaSolved(driver):\n",
+    "    waitUntilDownloadHasFinished(downloadDir + \"/\" + file2Download)\n",
     "    display('file downloaded')\n",
     "else:\n",
-    "    display('try again')"
+    "    display('failed to solve captcha and download file')"
    ]
   },
   {