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I'm looking to restore my old messages to my new iPhone however when restoring from backup the messenger app stops working. Apple support say its the database that is corrupt. From looking at the .db files of 4.1 and 11 the schema is different.

Are there any scripts/tools to move the old data into the newer format. I've tired 9 tools so far and they either cant read the old db or cant transfer them into the new one.

Only tool that comes close is icopybot, but I get an error constraint 2067 about 2 fields.

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  • Apple support recommended getting a cheap second hand iphone 4s with io9 then restoring the old ios3 back to it. This updated the database with the new fields. Then backup the new iphone and restore it to the new iphone 8 io11. Worked fine. For whatever reason the code that updates the sqlite db isn't on io11 only 9 and bellow maybe.
    – wildpeople23
    Commented Apr 16, 2018 at 15:39

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You may want to try migrating the data on the phone to an intermediary iOS. For example, if you're starting with an iPhone 3G (which has a maximum iOS of 4), then upgrade that phone to an iPhone 4S, (which can be updated to a max of iOS 9). If you're able to upgrade from iPhone 3G to 4S, then you'll have your text messages on iOS 9.3.5, which should definitely be upgradeable to iOS 11.

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