diff --git a/base b/base
index 674746971..be04eb049 160000
--- a/base
+++ b/base
@@ -1 +1 @@
-Subproject commit 67474697169dd88800bc37af5b7fb87ce0596ee8
+Subproject commit be04eb049dae438cf3347a52de7828fbb181123f
diff --git a/frontend/apps/reader/modules/readerhighlight.lua b/frontend/apps/reader/modules/readerhighlight.lua
index 856089a31..ae9faf14d 100644
--- a/frontend/apps/reader/modules/readerhighlight.lua
+++ b/frontend/apps/reader/modules/readerhighlight.lua
@@ -1544,9 +1544,9 @@ No OCR results or no language data.
 
 KOReader has a build-in OCR engine for recognizing words in scanned PDF and DjVu documents. In order to use OCR in scanned pages, you need to install tesseract trained data for your document language.
 
-You can download language data files for version 3.04 from https://tesseract-ocr.github.io/tessdoc/Data-Files
+You can download language data files for Tesseract version 5.3.4 from https://tesseract-ocr.github.io/tessdoc/Data-Files
 
-Copy the language data files for Tesseract 3.04 (e.g., eng.traineddata for English and spa.traineddata for Spanish) into koreader/data/tessdata]])
+Copy the language data files (e.g., eng.traineddata for English and spa.traineddata for Spanish) into koreader/data/tessdata]])
 
 function ReaderHighlight:lookup(selected_text, selected_link)
     -- convert sboxes to word boxes
diff --git a/frontend/document/koptinterface.lua b/frontend/document/koptinterface.lua
index 971e9a503..f3f1e8edf 100644
--- a/frontend/document/koptinterface.lua
+++ b/frontend/document/koptinterface.lua
@@ -23,7 +23,7 @@ local KoptInterface = {
     -- If `$TESSDATA_PREFIX` is set, don't override it: let libk2pdfopt honor it
     -- (which includes checking for data in both `$TESSDATA_PREFIX/tessdata` and
     -- in `$TESSDATA_PREFIX/` on more recent versions).
-    tessocr_data = not os.getenv('TESSDATA_PREFIX') and DataStorage:getDataDir().."/data" or nil,
+    tessocr_data = not os.getenv('TESSDATA_PREFIX') and DataStorage:getDataDir().."/data/tessdata" or nil,
     ocr_lang = "eng",
     ocr_type = 3, -- default 0, for more accuracy use 3
     last_context_size = nil,
diff --git a/kodev b/kodev
index 24e671de5..c17f3acfb 100755
--- a/kodev
+++ b/kodev
@@ -754,7 +754,7 @@ TARGET:
                 # there's no adb run so we do this…
                 adb shell monkey -p org.koreader.launcher${KODEBUG_SUFFIX/-/.} -c android.intent.category.LAUNCHER 1
                 assert_ret_zero $?
-                adb logcat KOReader:V luajit-launcher:V dlopen:V "*:E"
+                adb logcat KOReader:V k2pdfopt:V luajit-launcher:V dlopen:V "*:E"
             } || echo "Failed to find adb in PATH to interact with Android device."
             ;;
         *)