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I backed up my SMS an year ago via HTC One phone's messaging application. The backup file that was created on SD card had no extension and its name is "SMS_nai_SD_20160625_701301_0".

I was never able to restore that backup but I now need one of the messages in backup and have already lost the phone. If I open the file in notepad, it starts with "HTCMSGBACKUP_V1" and rest of that are special characters. There is another thread related to same issue that suggests either restore the messages or use emulator. I was wondering is there any other way to handle that if we know the starting characters of the file.

Thank you.

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Just changing the file extension will not help. As far as I know it's just some kind of encrypted text file. It's either a htc or an android specific file. In order to restore a message from that file you need an android device. It might work with the stock android sms app in an emulator but probably not. I suspect that it's only going to work with htc sms app.

[edit]:
The backup file is an encrypted sqlite database file not just some text file.

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  • I think you are right, it must be an encrypted file. I do have Huawei 5X which is also an android phone. But this file is not recognizable on that even. I have also tried "SMS Backup & Reset", "All SmS Secure", "Super Backup" and Huawei built in SMS app for the purpose. None of them is working. Can you please suggest how would I do this via emulator?
    – Kamran
    Commented Jan 17, 2017 at 13:56
  • Based on your test it's not going to work with a stock android emulator. You can try to install the htc sms app (htc messages) on your huawei. apkmirror.com/apk/htc-corporation/htc-messages/…
    – Walter Wolf
    Commented Jan 17, 2017 at 13:59
  • 2 out of 4 available versions could be installed. App kept restoring for some time, when restoring finished, it shown me blank messages from correct contacts. Message body was missing. It was a close miss! Thank you for the help. Any other tip?
    – Kamran
    Commented Jan 17, 2017 at 18:26
  • I believe the only remaining thing you could do is to get a hold on an htc phone and to restore the backup with that phone. If you are into "cracking/hacking" you could also try to crack the file. The backup file is an encrypted sqlite database file so you would need to crack the encryption. I cannot help you with that.
    – Walter Wolf
    Commented Jan 18, 2017 at 10:33

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