• Thanks @Gordon, Okay, I've re-flashed it with 1v91 (1v91.467 from the firmware list, rather than the beta one). And ran that erasePage script on the left:

    Connected
    >console.log("<","<<",JSON.stringify(process.env),">>",">")
    =undefined
    >var f = require("Flash");
    =function () { [native code] }
    >for (var i=119;i>=115;i--) {
    :  print(i);
    :  f.erasePage(i*4096);
    :}
    119
    118
    117
    116
    115
    =undefined 
    

    Though the LEDs are flashing the same as before when I update to 1v92.

    Ah, yes - this is the one that I had the beta firmware on.

    One thing - I've been screwing around with the NRF.(set/update)Services quite a lot, so I don't know if that got me in a weird state. (I couldn't get custom services to work - and I was hoping that the firmware update might reset things.)

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