Bench Signal #008 — three things from the bench, every Tuesday.
① This week's tip
MacBook Pro Touch ID stops recognising fingerprints after a battery replacement. Before assuming the sensor needs replacing, check the Touch ID connector.
On many models, the sensor is paired to the Secure Enclave, and a loose connection, even without visible damage, is enough for the system to stop recognising already enrolled fingerprints. Disconnect and reconnect the cable firmly, then test again before ordering anything.
Ten minutes saved on a part that didn't need replacing.
② Prompt of the week
Use this to build a 48-hour follow-up message for every repair:
I run an Apple repair lab. Write a short follow-up message I can send by SMS or email 48 hours after a customer collects their repaired device. It should: check that everything is working as expected, remind them how to reach us if there's an issue, and keep the tone friendly without sounding like a sales follow-up. Under 60 words.
Send it two days after every job. Most issues that would otherwise turn into a public complaint get caught here first, while the customer still feels like you're paying attention.
③ Resource this week
OpenCore Legacy Patcher — github.com/dortania/OpenCore-Legacy-Patcher
Open source project that lets unsupported Macs run recent macOS versions. Useful when a customer asks if their older Mac can be updated and you need to know what's technically possible before promising anything. Free, actively maintained, well documented.
That's it for this week.
If this was useful, forward it to a colleague who'd appreciate it.
— BenchNotes