If you have accidentally deleted your WhatsApp chats and have been wondering how you could get them back, you don’t need to worry as I will show you how to restore the messages from backups.

WhatsApp automatically makes backups every day at 4 AM and stores them in the WhatsApp folder of your Android phone. This folder is either located in your device’s internal memory or external microSD card. To restore the most recent backup, you will need to uninstall and reinstall WhatsApp.
During the installation process, you will be prompted to restore your message history. Choose Restore to restore your missing chats.



If you are not prompted to restore your messages, it could be that:

1. Your SD card and/or chat history is corrupted.
2. Your backup is too old. WhatsApp cannot restore backups that are too old.
3. You have a different phone number than when you backed up your chats.

In any of those cases, your lost messages cannot be restored.

Restoring older (less recent) backups

Before attempting to restore messages, please note:

1. Current chat history will be lost upon restoration.
2. There are only up to 7 days worth of backup files.
3. Any new messages sent/received after a backup, and deleted before the next backup, cannot be restored.
4. If you run a manual backup, it will overwrite the most recent automatic backup file.
5. On newer devices, your WhatsApp/Databases folder is most likely located in your device’s internal memory.
6. You must have the same phone number in WhatsApp that you had when you backed up your chats.

Recommendations before starting to restore your messages

1. Make sure you have a good file manager. This will be useful for renaming the backup files.
2. If you do not want to lose your current history (newest messages), create a manual backup by going to:
WhatsApp > Menu Button > Settings > Chat Settings > Backup conversations.

This manual backup file will be saved as “msgstore.db.crypt7″ or “msgstore.db.crypt8″ in your /sdcard/WhatsApp/Databases folder. Save this file as “msgstore.db.crypt7.current” or “msgstore.db.crypt8.current” (depending on the original file extension) so you do not get it confused with other backup files during the restoration process.

Please note, your backup files are saved in the /sdcard/WhatsApp/Databases folder. This folder may be located in either your device’s internal memory or external memory.

To restore from a backup, follow these steps:
1. Uninstall WhatsApp.
2. Decide which backup file you want to restore.
3. Rename that file from “msgstore-YYYY-MM-DD.1.db.crypt7″ to “msgstore.db.crypt7″ or from “msgstore-YYYY-MM-DD.1.db.crypt8″ to “msgstore.db.crypt8″.
4. Install WhatsApp.
5. When asked to restore, tap Restore .

You will now be able to see your restored messages. If you want to revert the restoration, simply change the backup filename back to what it was, rename “msgstore.db.crypt7.current” to “msgstore.db.crypt7″ or “msgstore.db.crypt8.current” to “msgstore.db.crypt8″, and follow these steps again.

http://www.androidgist.com/how-to-recover-whatsapp-deleted-messages

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Occasionally you may lost your iPhone Data due to accident deletion, iOS 9 upgrade, factory restore etc. iPhone Data Recovery photos, contacts, messages, WhatsApp chat, notes, and more. No matter how you lost iPhone data!

Option 1: Recover iPhone Data directly without backup
>Connect iPhone to computer and run iPhone data recovery on this computer.
> Under the mode "Recover Data from iOS Devices", scan your iPhone.
> Preview and select the lost data to recover.

Option 2: recover data from iPhone via an iTunes backup
> Click on the iTunes symbol and you are in the "Recover Data from iTunes Backup File" mode.
> This software will automatically find and list all iTunes backup files. Select the iPhone 6 backup file to scan.
> After scanning, preview the lost data and select the ones you want to recover.

Option 3: restore iPhone data from an iCloud backup
>Select "Recover Data from iCloud Backup File" mode.
>Sign into your iCloud account and you will get iCloud backup file.
>Preview and recover the deleted, lost pics from camera roll, numbers, SMS and more data.

To get more details, click following the guides:
how to print whatsApp conversations on iPhone
how to backup whatsApp messages on iPhone

To recover WhatsApp Data from iPhone,you must use a third party iOS data recovery service to help you recover all the WhatsApp data from iPhone.
FonePaw iPhone Data Recovery enables you to recover deleted WhatsApp chat history by scanning your iPhone 5/4S/4/3GS. It can not only recover all the WhatsApp chats, but also photos, videos, emoji, etc.

When you delete your messages, you should check your iTunes backup files to get them back. But if you forgot to backup them before, don't worry, you can also recover lost data from iPhone. The way to deal with this issue is the 3 party recovery software. You can download the one you think that can help you a lot and recover your iPhone messages.

Different from the others iPhone recovery ways mentioned above, I would like to introduce how to recover WhatsApp chat history on Android devices. If you don't have backup, you should use Gihosoft free data recovery software for Android (Android data recovery Mac ) to recover your lost WhatsApp messages. The software is free to recover some files and won good reputation of retrieving files due to different reasons like accidental deletion, virus attack, formatting and factory reset.


https://www.youtube.com/watch?v=mPad03Hf_jA

The best Whatsapp Recovery software for iPhone is Dr.Fone for iOS:
http://mobilemanager.it/iphone-data-recovery.html

Nice one
Good info

[quote author=fortech91 post=32069782]If you have accidentally deleted your WhatsApp chats and have been wondering how you could get them back, you don’t need to worry as I will show you how to restore the messages from backups.

WhatsApp automatically makes backups every day at 4 AM and stores them in the WhatsApp folder of your Android phone. This folder is either located in your device’s internal memory or external microSD card. To restore the most recent backup, you will need to uninstall and reinstall WhatsApp.
During the installation process, you will be prompted to restore your message history. Choose Restore to restore your missing chats.



If you are not prompted to restore your messages, it could be that:

1. Your SD card and/or chat history is corrupted.
2. Your backup is too old. WhatsApp cannot restore backups that are too old.
3. You have a different phone number than when you backed up your chats.

In any of those cases, your lost messages cannot be restored.

Restoring older (less recent) backups

Before attempting to restore messages, please note:

1. Current chat history will be lost upon restoration.
2. There are only up to 7 days worth of backup files.
3. Any new messages sent/received after a backup, and deleted before the next backup, cannot be restored.
4. If you run a manual backup, it will overwrite the most recent automatic backup file.
5. On newer devices, your WhatsApp/Databases folder is most likely located in your device’s internal memory.
6. You must have the same phone number in WhatsApp that you had when you backed up your chats.

Recommendations before starting to restore your messages

1. Make sure you have a good file manager. This will be useful for renaming the backup files.
2. If you do not want to lose your current history (newest messages), create a manual backup by going to:
WhatsApp > Menu Button > Settings > Chat Settings > Backup conversations.



To restore from a backup, follow these steps:
1. Uninstall WhatsApp.
2. Decide which backup file you want to restore.
3. Rename that file from “msgstore-YYYY-MM-DD.1.db.crypt7″ to “msgstore.db.crypt7″ or from “msgstore-YYYY-MM-DD.1.db.crypt8″ to “msgstore.db.crypt8″.
4. Install WhatsApp.
5. When asked to restore, tap Restore .

You will now be able to see your restored messages. If you want to revert the restoration, simply change the backup filename back to what it was, rename “msgstore.db.crypt7.current” to “msgstore.db.crypt7″ or “msgstore.db.crypt8.current” to “msgstore.db.crypt8″, and follow these steps again.

http://www.androidgist.com/how-to-recover-whatsapp-deleted-mess

Hi,
Whatsapp is an useful application which is use for messaging purpose and in fact it is nowadays used for calling purpose also. However the messages are sometimes gets deleted and among them some are important which is needed for important purpose. However there is nothing to get worried about it because nowadays those days are gone off where no possibility to recover data was there. Now users can very easily recover the lost data from their devices by using third party recovery tool.
See more on: http://www.androiddatarecoverymac.com/blog/recover-deleted-whatsapp-imagespictures-android-mac

People can catch up with their friends, families, and colleagues and know exactly what they did, where they went, how they feel in a more simple way with WhatsApp. However, sometimes you may come across data loss if you accidentally delete the important files on your Android. You seek for help in order to retrieve deleted WhatsApp messages and find out that it could be really time-consuming. So to solve the problem of losing WhatsApp messages, you can restore it from the third-party software- Android Data Recovery for help. Remember! Don't operate your Android phone or update anything once you find out that you lost the important data and want to recover it. Otherwise, your backup file will be overwritten and what you deleted by mistake can not be extracted back any longer.

Now get back your deleted WhatsApp messages easily with the help of Android Data Recovery software. This software works effectively to restore all erased messages of WhatsApp from any android devices. You don't have to worry about anything because not only your WhatsApp data will be recovered but other data will also get restored without any loss.
So I would recommend users to Free Download Android Data Recovery software and restore WhatsApp data easily.