Permanently Erase Samsung Data before Selling
My first recommendation is a data eraser named Android data eraser,which allow to erase all data from Android without restoring,including contacts,messages,call history,apps,system setting, photo, video, etc.To be honest, Android Data Eraser worth trusting and it makes the work more effective.Almost all Samsung phone models are applicable to this program,including Samsung Galaxy S20/S11/S10/S9/S8/S7,Samsung Galaxy Note 20/10/9/8/7 and more.
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Usually, we can delete messages from Samsung Galaxy J7 in messager apps by selecting the messages you want to delete. But if you wan to delete messages permanently without recovery program, the easy way is using Samsung data eraser program. Permanently Delete Text Messages Contacts from Samsung Galaxy Note
Permanently Delete Text Messages Contacts from...
How do permanently delete SMS and...
SOURCE: When marshmallow 6.0 update will be released for galaxy j7?
Who is your carrier? A lot of the carriers release based on when they are ready, not by the phone manufacturer. You can check with your carrier for this information. Thanks!
Try to make update to software and wuld woek great or go to a service centre and ask for reflash software but 1st make a buckup on your laptop-pc
SOURCE: I want Stock Rom for J7 SM-J710GN
1. Install Drivers
2.Download Oding program install And Run..
3. Download samsung galaxy J7 SM-J710GN Stock Rom.
4. Turn off your phone. and press and hold "volume down + home + power.
5. Then Connect your phone to Computer. and Press volume up
6. Click AP and Locate Stock Rom File and Click OK.
7. Click "Start"
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