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Failure [INSTALL_FAILED_VERSION_DOWNGRADE] #10
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Same issue: |
Hi, I am facing a similar error when I execute WhatsAppKeyDBExtract.bat file Error: Failure [INSTALL_FAILED_VERSION_DOWNGRADE] **Deleted file - C:\Users....\WhatsApp-Key-DB-Extractor-master\tm\wapver.txt Done Downloading WhatsApp 2.17.395 to local folder Restore complete Removing WhatsApp 2.17.395 temporary apk Operation complete Press any key to continue . . .** I am currently using Android 7.0 and WhatsApp v2.17.395. Thanks in advance :) |
Hi! Regarding the issues with java, you just need to install the software that it says from the links. Password is set but strong AES encryption is not allowed If you don't do so, it's impossible for the extractor to access to the backup of your phone. Hope it helps. |
"[INSTALL_FAILED_VERSION_DOWNGRADE]". I think this looks like a feature of Android 7.0, see documentation for ADB. Apps can only be downgraded if the app permits it. A work-around might be to move your whatsapp temporarily to a device that has Android < 7.0, and extract the key there. You can then also back up any data you want to back up. Also, the key may or may not work when you go back to your Android >= 7.0 device. However, NOTE: Haven't tested this yet, but if one of you does try it, feedback would be appreciated. |
Annoyingly, just installing the old whatsapp version manually gives a complaint that "Your phone date is inaccurate!" |
Any news on this? So from Android 7 it's not possible to use it anymore? |
This article (https://android.stackexchange.com/questions/150071/how-to-manually-transfer-entire-whatsapp-installation-to-another-device-the-har) suggests that the adb backup functionality is also disabled (in addition to the ability to downgrade, see above). Edit - there is another way - see my post below. You don't need the following.
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It'd be a lot easier if the WhatsApp (well, Facebook) just put a proper export feature in |
@reedy Of course, I agree. I'm also using Telegram and Signal. Unfortunately they aren't all that great in terms of data export either, but at least being open source, it looks like it may happen sooner than WhatsApp. |
Yeah, it's hard enough getting some people onto WhatsApp (which is at least fairly well used). Trying to get people to install "yet another app" can be painful. I did email and ask...
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If you're on Android, here's some good news, following on from my above post: The whatsapp message store (msgstore.db.crypt12) is kept in internal SD memory (if you back up to Google Drive). Once you have the key, you can then decrypt that file using 'WhatsApp-Crypt12-Decrypter'. In summary, the following recipe worked for me:
The only caveat to this is that I don't know whether the WhatsApp key might change as you upgrade, or change devices in the future. Also, I guess WhatsApp may eventually become unavailable for Android 6, blocking this recipe altogether. |
@bjohas |
So I recently migrated to iPhone, I ended up using the software called Backuptrans. Now no I mean I am suggesting to do piracy. But you can follow these steps, which I got from this youtube video[https://www.youtube.com/watch?v=rbf2TN2wjpA]:
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Hey, I've made a script that does exactly that. Check it out at https://github.com/MarcoG3/WhatsDump |
Hi,
any chance this wonderful utility will work on Huawey P9 plus ?
Please help me! Thank you 1k
Pietro
Please connect your Android device with USB Debugging enabled:
Downloading legacy WhatsApp 2.11.431 to local folder
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 17.4M 100 17.4M 0 0 5264k 0 0:00:03 0:00:03 --:--:-- 5264k
WhatsApp 2.17.323 installed
Backing up WhatsApp 2.17.323
remote object '/data/app/com.whatsapp-2/base.apk' does not exist
Backup complete
Removing WhatsApp 2.17.323 skipping data
Success
Removal complete
Installing legacy WhatsApp 2.11.431
7958 KB/s (18329558 bytes in 2.249s)
Failure [INSTALL_FAILED_VERSION_DOWNGRADE]
Install complete
Now unlock your device and confirm the backup operation.
Please enter your backup password (leave blank for none) and press Enter:
Password is set but strong AES encryption is not allowed
Please install Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 7 or 8
http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
Exiting.
tar: tmp/whatsapp.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: tmp/whatsapp.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: tmp/whatsapp.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: tmp/whatsapp.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: tmp/whatsapp.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
Saving whatsapp.cryptkey ...
cp: cannot stat 'tmp/apps/com.whatsapp/f/key': No such file or directory
Saving msgstore.db ...
cp: cannot stat 'tmp/apps/com.whatsapp/db/msgstore.db': No such file or directory
Saving wa.db ...
cp: cannot stat 'tmp/apps/com.whatsapp/db/wa.db': No such file or directory
Saving axolotl.db ...
cp: cannot stat 'tmp/apps/com.whatsapp/db/axolotl.db': No such file or directory
Saving chatsettings.db ...
cp: cannot stat 'tmp/apps/com.whatsapp/db/chatsettings.db': No such file or directory
Pushing cipher key to: /sdcard/WhatsApp/Databases/.nomedia
cannot stat 'tmp/apps/com.whatsapp/f/key': No such file or directory
Downloading WhatsApp 2.17.323 to local folder
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 33428 0 33428 0 0 98360 0 --:--:-- --:--:-- --:--:-- 98317
Restoring WhatsApp 2.17.323
742 KB/s (33428 bytes in 0.043s)
Failure [INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION: Failed to parse /data/app/vmdl843851857.tmp/base.apk: AndroidManifest.xml]
Restore complete
Cleaning up temporary files ...
rm: cannot remove 'tmp/whatsapp.tar': No such file or directory
Done
Operation complete
Please press Enter to quit...
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