Restore SMSs from unrestorable Helium backup - Android Q&A, Help & Troubleshooting

Hello folks!
A few days ago I decided to flash a new custom ROM over my stock ROM. I backed up a few applications using Helium Backup by ClockworkMod, along with my SMS and call logs.
As soon as I booted into the new rom (CM13, if your'e curious) I downloaded Helium and tried to restore from the backup. The resotration process of the app's data was easy and quick, but I just couldn't restore the SMS messages. Although I made a nandroid backup right before flashing, I didn't want to revert to it in order to rebackup and meesages with a different app/method. Today I finally succeed in restoring my 765 messages! Because it seems like many people couldn't restore SMS messages backuped by Helium (Google it and see for yourselves) I decided to write a quick tutorial about how I managed to restore the messages.
1. Copy the "carbon" directory from your internal storage to your PC.
2. In your PC, open the SMS/Call Logs backup file which is located under "com.android.providers.telephony" and is called probably "com.android.providers.telephony.ab".
3. In this file, there is a JSON string (it's length depends on the number of messages you have). Seperate it from the spaces and other crap.
You should end with something like this:
Code:
{
"content://sms": [
{
"address": "+123456789",
"read": 1,
"date": 1475770548864,
"type": 1,
"body": "Hello XDA!"
}
]
}
every JSON entity represents a message you sent or recieved.
4. Remove the "content://sms" while making sure the JSON is still valid. It will look like this:
Code:
[
{
"address": "+123456789",
"read": 1,
"date": 1475770548864,
"type": 1,
"body": "Hello XDA!"
}
]
5. Save it as a JSON and transfer it to your phone.
6. On your phone, download the following app which restores messages from JSON files.
7. Transfer the JSON file you made the uBackup directory in your phone's internal storage.
8. Hit restore!
Proof:
That's it guys, I hope it would help for people who made that didn't made a nandroid backup and Helium is the only place their important meesages are stored.
I have no idea how it works, but it did for me and hopefully for others.
P.S.: I couldn't find a way to retrieve the call logs. This is less important in my opnion because usually you dailer limits the number of saved calls to 500...