Failure [INSTALL_FAILED_VERSION_DOWNGRADE]

[peyobr]

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:

• daemon not running. starting it now on port 5037 *
• daemon started successfully *

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...

[hknnisar]

Same issue: Failure [INSTALL_FAILED_VERSION_DOWNGRADE] on Android 7.1.2 Is this an OS specific bug?

[VidhiBhansali]

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 Deleted file - C:\Users....\WhatsApp-Key-DB-Extractor-master\tm\sdkver.txt

Done

Downloading WhatsApp 2.17.395 to local folder % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 33428 0 33428 0 0 110k 0 --:--:-- --:--:-- --:--:-- 110k Restoring WhatsApp 2.17.395 1920 KB/s (33428 bytes in 0.017s) Failure [INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION: Failed to parse /data/app/v dl429337027.tmp/base.apk: AndroidManifest.xml]

Restore complete

Removing WhatsApp 2.17.395 temporary apk Deleted file - C:\Users....\WhatsApp-Key-DB-Extractor-master\tm \base.apk

Operation complete

Press any key to continue . . .**

I am currently using Android 7.0 and WhatsApp v2.17.395.

Thanks in advance :)

[Nick2324]

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 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

If you don't do so, it's impossible for the extractor to access to the backup of your phone.

Hope it helps.

[bjohas]

"[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, it if does, then you can continue backing up.

NOTE: Haven't tested this yet, but if one of you does try it, feedback would be appreciated.

[reedy]

Annoyingly, just installing the old whatsapp version manually gives a complaint that "Your phone date is inaccurate!"

[nicolabeghin]

Any news on this? So from Android 7 it's not possible to use it anymore?

[bjohas]

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.

Just using the device, the only possibility seems to get the key under Android 6, and then to work on a rooted device, where you can access /data/data/com.whatsapp/databases (or likely that has the key anyway, so rooting would work). Otherwise, the only possibility I can see is with Google Drive - assuming you are using this on Android for WhatsApp backups. You can download the archive (I guess) using WhatsApp-GD-Extractor, and then (I guess) use WhatsApp-Crypt12-Decrypter to decrypt the message store. This assumes that the key (extracted under Android 6) stays the same, so that you can use it with the backup downloaded from Google Drive. Has anybody tried this? Any thoughts?

[reedy]

It'd be a lot easier if the WhatsApp (well, Facebook) just put a proper export feature in

[bjohas]

@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.

[reedy]

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...

Unfortunately, at this time it's not possible to transfer your history across platforms. We are always working to improve our app and will take your suggestion into consideration.

[bjohas]

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 'WhatsApp-Key-DB-Extractor' script won't work (and probably never will) under Android 7+.
• If you have an Android 6 device, the script will work.
• If you have an Android 7+ device (with WhatsApp) and an Android 6 device, sync your WhatsApp to Google Drive, and then transfer to the Android 6 device.
• Now use the script to extract the key (and backup up your messages of course).
• Then your WhatsApp back to the Android 7 device.
• Whenever you want to do further backups (on your Android 7 device), get the msgstore.db.crypt12 from internal storage (e.g. using a file explorer, or adb, etc). Decrypt the file with the key obtained earlier.

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.

[sparshgupta1]

@bjohas From your last comment, the script will only work if Android 6. This may come as super lame, but would be possible to emulate a phone with android 6 on PC. Install WhatsApp on the emulator. And then get the data?

[sparshgupta1]

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]:

1. Get a VM or physical machine, Win7SP1 32bit
2. Download this directory[https://drive.google.com/file/d/17HQWEkGGiES7cqXg7n1Z2tQo-4kxcxCY/view]
3. Install iTunes
4. Install ADB drivers for your phone.
5. Disconnect the internet on VM.
6. Disconnect Gdrive from WhatsApp, and create a local backup of chats on phone.
7. Transfer the chats to the VM using the software, and then to your iPhone after creating the chat.sqlite.

[MarcoG3]

@bjohas From your last comment, the script will only work if Android 6. This may come as super lame, but would be possible to emulate a phone with android 6 on PC. Install WhatsApp on the emulator. And then get the data?

Hey, I've made a script that does exactly that. Check it out at https://github.com/MarcoG3/WhatsDump