diff --git a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
index 4e039ad85..29efcf8f1 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
@@ -97,11 +97,13 @@ public class JingleInbandTransport extends JingleTransport {
 			file.createNewFile();
 			this.fileOutputStream = file.createOutputStream();
 			if (this.fileOutputStream == null) {
+				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not create output stream");
 				callback.onFileTransferAborted();
 				return;
 			}
 			this.remainingSize = this.fileSize = file.getExpectedSize();
 		} catch (final NoSuchAlgorithmException | IOException e) {
+			Log.d(Config.LOGTAG,account.getJid().toBareJid()+" "+e.getMessage());
 			callback.onFileTransferAborted();
 		}
     }
@@ -122,6 +124,7 @@ public class JingleInbandTransport extends JingleTransport {
 			this.digest.reset();
 			fileInputStream = this.file.createInputStream();
 			if (fileInputStream == null) {
+				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could no create input stream");
 				callback.onFileTransferAborted();
 				return;
 			}
@@ -130,6 +133,7 @@ public class JingleInbandTransport extends JingleTransport {
 			}
 		} catch (NoSuchAlgorithmException e) {
 			callback.onFileTransferAborted();
+			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": "+e.getMessage());
 		}
 	}
 
@@ -182,7 +186,7 @@ public class JingleInbandTransport extends JingleTransport {
 				fileInputStream.close();
 			}
 		} catch (IOException e) {
-			Log.d(Config.LOGTAG,e.getMessage());
+			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": "+e.getMessage());
 			FileBackend.close(fileInputStream);
 			this.onFileTransmissionStatusChanged.onFileTransferAborted();
 		}
@@ -206,7 +210,7 @@ public class JingleInbandTransport extends JingleTransport {
 				connection.updateProgress((int) ((((double) (this.fileSize - this.remainingSize)) / this.fileSize) * 100));
 			}
 		} catch (IOException e) {
-			Log.d(Config.LOGTAG,e.getMessage());
+			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": "+e.getMessage());
 			FileBackend.close(fileOutputStream);
 			this.onFileTransmissionStatusChanged.onFileTransferAborted();
 		}
diff --git a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleSocks5Transport.java b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleSocks5Transport.java
index 72015a058..35375a5dc 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleSocks5Transport.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleSocks5Transport.java
@@ -1,5 +1,7 @@
 package eu.siacs.conversations.xmpp.jingle;
 
+import android.util.Log;
+
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
@@ -10,6 +12,7 @@ import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.Arrays;
 
+import eu.siacs.conversations.Config;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.utils.CryptoHelper;
@@ -102,6 +105,7 @@ public class JingleSocks5Transport extends JingleTransport {
 					digest.reset();
 					fileInputStream = file.createInputStream();
 					if (fileInputStream == null) {
+						Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": could not create input stream");
 						callback.onFileTransferAborted();
 						return;
 					}
@@ -121,10 +125,13 @@ public class JingleSocks5Transport extends JingleTransport {
 						callback.onFileTransmitted(file);
 					}
 				} catch (FileNotFoundException e) {
+					Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": "+e.getMessage());
 					callback.onFileTransferAborted();
 				} catch (IOException e) {
+					Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": "+e.getMessage());
 					callback.onFileTransferAborted();
 				} catch (NoSuchAlgorithmException e) {
+					Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": "+e.getMessage());
 					callback.onFileTransferAborted();
 				} finally {
 					FileBackend.close(fileInputStream);
@@ -150,6 +157,7 @@ public class JingleSocks5Transport extends JingleTransport {
 					fileOutputStream = file.createOutputStream();
 					if (fileOutputStream == null) {
 						callback.onFileTransferAborted();
+						Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": could not create output stream");
 						return;
 					}
 					double size = file.getExpectedSize();
@@ -160,6 +168,7 @@ public class JingleSocks5Transport extends JingleTransport {
 						count = inputStream.read(buffer);
 						if (count == -1) {
 							callback.onFileTransferAborted();
+							Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": file ended prematurely with "+remainingSize+" bytes remaining");
 							return;
 						} else {
 							fileOutputStream.write(buffer, 0, count);
@@ -173,10 +182,13 @@ public class JingleSocks5Transport extends JingleTransport {
 					file.setSha1Sum(CryptoHelper.bytesToHex(digest.digest()));
 					callback.onFileTransmitted(file);
 				} catch (FileNotFoundException e) {
+					Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": "+e.getMessage());
 					callback.onFileTransferAborted();
 				} catch (IOException e) {
+					Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": "+e.getMessage());
 					callback.onFileTransferAborted();
 				} catch (NoSuchAlgorithmException e) {
+					Log.d(Config.LOGTAG, connection.getAccount().getJid().toBareJid() + ": "+e.getMessage());
 					callback.onFileTransferAborted();
 				} finally {
 					FileBackend.close(fileOutputStream);