Step to delete WhatsApp messages even after 7 minutes
By: Team Ifairer | Posted: 13-01-2018
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Step 2: Once you are over with it, go to the settings again and disable the automatic Date & time update.
Step 3: Now change both date and time on your smartphone to the time, when you sent the sent the message. If you are not sure about it, you can scroll the chat till it shows you the date and time on it.
Step 4: Once done, you can delete the message by holding on to the message for few seconds, where you will see two options 'Delete For Me' and 'Delete For Everyone'. If you want to delete for the sender you can do it tapping on it or else tap on the first option. Once done, change the time and date back to normal.
source: gizbot.com