I am looking for an app/software to backup several sms conversations on my Galaxy S7. I tried AirDroid and SMS Backup+, they seems not work in this way.
Do you use Gmail and have a google account? If you selected the option backup your information, there might be a copy of your contacts online. Login to Gmail in your desktop and then go to contacts, hopefully you'll have your contacts there. but for messages, so far, it seems there is no software can directly back up messages on Samsung phone, if you found it, please share with me.
k... have you tried Tunesbro program? https://www.tunesbro.com/transfer-sms-from-android-to-computer.html it offers four ways to help backup your messages to computer.
If backuping several sms conversations on your Galaxy S7 to computer is OK, you can use Coolmuster Android Assistant. With its help, after connect it to computer via usb cable, you can preview and choose the sms messages you want to backup.
It is known to US that Samsung has their own Android phone to capture the market.So you can find the related official management tool , Samsung Kies. Use a USB cable to connect your mobile to your PC .Once its connected, then you can copy sms pc documents. You can also try MobiKin Assistant for Android, which can extractor your text messages from Samsung to your computer.