How to backup and restore your KrispyGauge configuration
Your gauge configuration — pages, channels, warning thresholds, colours and keypad mappings — can be saved to a file and loaded back in seconds. If you've spent time setting the gauge up, take a backup.
http://4.3.2.1..json file to your phone or computer.Rename it something you'll recognise later — the car and the date works well, e.g. ae86-2026-09-01.json. Then get it off your phone and somewhere safe: email it to yourself, or drop it in cloud storage.
http://4.3.2.1..json file and upload it.The gauge applies the configuration and returns to the setup you saved.
The backup is readable JSON, which makes it tempting to tweak by hand. Don't — unless you fully understand its structure.
Restoring a malformed or hand-edited file can corrupt the gauge configuration and leave it unresponsive, which means a factory reset or USB recovery to get back. Keep your backups intact and unmodified.
A backup taken from one gauge can be restored to another, which is a fast way to set up a second gauge or replicate a configuration across cars.
One thing to change afterwards: if you're running both gauges on the same CAN bus, give the second one a different keypad identity (A or B) under Keypad. Two gauges sharing an ID on one bus will interfere with each other.