We beat Apple at their own game - let the unauthorized calibrations BEGIN!
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https://rossmanngroup.com/sleeptoolFor those wondering why this matters, wHy nOT JuST hAvE ApPlE fIX iT, sometimes Apple tells customers they need an entire ...

Apple has refused to provide the calibration tool for the sleep sensor to independent repair people. A German repairman has beaten Apple and developed a calibration tool.

https://rossmanngroup.com/sleeptool