[Q] WhatsApp database encryption - Android Q&A, Help & Troubleshooting

Hello,
I'm having some troubles with backups of WhatsApp conversations.
Some time ago I replaced a Nexus 5 with another one and I just copied the WhatsApp folder to the new device, so no problem meking the crypt7 database to work with the new device (I didn't copy the key file). Now I switched to an LG G3 and this time it says it's not able to recover the backup.
What could be the cause? The key file is generated depending on the model, the account (as it was with crypt5)?
If I got back my facry reset-ed Nexus 5 and I logged in with my account, Could I bring the right key file to the G3?
Thank you, I'm a little confused about WhatsApp encryptions.

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Decrypting Whatsapp DB (crypt8) questions

Hello guys,
this is my first post on this forum (sorry for my poor English, I'll try to write my best), and I'd really like to ask you some advice about my situation.
I used to have an Android 2.3.3 device and Whatsapp installed on it, regularly updated (I still have it, but I'm not using it).
Almost a month ago I bought a new device, with Android 4.4.4 installed, and I immediately put WhatsApp on it.
Before removing SD from the old phone, i saved my backup file OLD.db.crypt8, in order to let the "new" whatsapp restore my messages. Unfortunately, a month passed before i could be able to think about restoring my old messages.
Thus, i have accumulated (?) a month of messages, and i "backup-ed" them in a MIDDLE.db.crypt8 file.
I already managed to decrypt the "middle" db.crypt8 file (extracting the key file from my android 4.4.4), but don't know how to decrypt the OLD.db.crypt8 file.
OLD, in fact, comes from Android 2.3.3, as said, and i got no key file
My final goal is, after decrypting all three databases (OLD, MIDDLE and "NEW" - provided that NEW is the database i'm "growing up" on my phone at the moment), merging the three databases in an only database (and this is possible with the XDA guide i already have read)
Can anyone help me?
Thank you very much
Up! Please help
No chance for me?

Contacts lost after recovery with Android SDK!

yesterday I had to bring my samsung s6 edge, running on android 5.1.1 (non-rooted), to a samsung service point because the display was broken. I was wondering that they immediately repaired it and whyever made a factory reset. anyway, right before I made a backup with android sdk. afterwards I tried to flash the recovery and it seemed to be working. almost all files, apps and settings were back on the phone but the contacts. even the numbers in the dialling lists, only without names. the funny part is, that some of the names were displayed for e few seconds when I scrolled down the list. but then they immediately changed to numbers without names
I already extracted the backup file, but there is no file with this describtion: /data/data/com.android.providers.contacts/databases/contacts2.db
there is also no other backup of the contacts, such as vCard export, google sync, outlook sync, etc.
Is there any way to get my contacts back??
thank you!
default
defaultuser_83 said:
yesterday I had to bring my samsung s6 edge, running on android 5.1.1 (non-rooted), to a samsung service point because the display was broken. I was wondering that they immediately repaired it and whyever made a factory reset. anyway, right before I made a backup with android sdk. afterwards I tried to flash the recovery and it seemed to be working. almost all files, apps and settings were back on the phone but the contacts. even the numbers in the dialling lists, only without names. the funny part is, that some of the names were displayed for e few seconds when I scrolled down the list. but then they immediately changed to numbers without names
I already extracted the backup file, but there is no file with this describtion: /data/data/com.android.providers.contacts/databases/contacts2.db
there is also no other backup of the contacts, such as vCard export, google sync, outlook sync, etc.
Is there any way to get my contacts back??
thank you!
default
Click to expand...
Click to collapse
Greetings,
Thank you for using XDA Assist. To get you the best help, I'm going to move your thread to your device's Q&A forum.

Help with recovering whatsapp msgs

Hi everyone!
I've bought a new phone and I was trying to get in this device the whatsapp messages from the older phone, without sucess...
I've the same whatsapp version on both phones. On the older phone I've done a backup both locally (internal storage) and to my google drive account.
I've placed the whatsapp databases and media from my old phone into the same folder on the new one.
After installing whatsapp, on the part that asks for recovering messages, it recognizes the database and media on the internal storage but everytime I've tried, it blocks on 41% and then an error appears. After that, it tries to import from gdrive but it also fails...
Can anyone help me please? I didn't want to put in trash all those messages
Any idea? I don't know what to do have the messages even having 4 backup files and the backup on the gdrive... And with so many attemps, I had to wait 24h to get the verification code. I don't know how times I'll be able to try to reinstall whatsapp since each one of the attemps, the time to receive the verification code doubles :/

[WhatsApp] Recovering database / crypt key

Hello folks!
I'm from Brazil and this is my first post here, beside I have been using the forum to read and get information.
I have suddenly and without reason been banned from WhatsApp. I tried to contact support but the ban remains. They said it is unreversible.
I still have the phone and SIM Card where I used the app. I also have the Google Drive backup and the local backup
The local backup is not in the phone anymore. I have copied the files to my computer. Then I have reinstalled WhatsApp with another number and a new Database is in the phone.
I can not copy the databases files from my banned number back to the cell phone. It gives and error.
What I need is to read the messages / get the contacts from the banned number. I will use WhatsApp Viewer for this but I need the key
My phone is NOT rooted. I tried to use WhatsApp-Key-DB-Extractor-master without sucess
I woud like to know if there is any chance to retrieve the backup file, specially the key
Thanks a lot!

[APP] WhatsApp - Duplicated folders

Hi guys,
I bought a brand new Samsung Galaxy A52s 5G and sent all data via direct usb cable and SmartSwitch app, from my old LG V30+.
The SmartSwitch gave an alert, that WhatsApp data cannot be sent, and I have to use the builtin WhatsApp restore feature from the Google backup.
So I did, and everything seems perfect.
But now, I see that the WhatsApp media folders on the new device, are duplicated. They are not only on the root of internal memory, but also on the Android/media/com.whatsapp subfolder, for example the "WhatsApp Images" folder for images is both on:
/storage/emulated/0/WhatsApp/Media/WhatsApp Images/
and
/storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/
If I compare them, the numbers of files is not the same, and I can't understand if I have to mantain both, or if I can delete one without losing files.
Thanks a lot!

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