iPhone 15 Memory Upgrade.

Board-level micro-soldering at our Kepong HQ, typically 24–72 hours, and it's precision work. We remove the existing NAND flash chip from the logic board and fit a higher-capacity one, then re-program it with the phone's original identity data (syscfg) so that iCloud, Face ID / Touch ID and the phone's serial all keep working — done correctly, the iPhone treats the new larger storage as its own. The same process repairs a failed NAND that's causing a boot loop. Two honest points: first, this replaces the storage chip, so you must have a backup — the old data doesn't transfer and is restored afterward from your iCloud or computer backup. Second, it's intricate board-level work, so we're upfront about whether it's worth it for your specific model versus other options. We confirm the model, the target capacity and that your data is backed up before starting, and the diagnosis is free.