Note before I begin. I am using a Fluke 77 DMM for voltage & resistance measurements, a signet 1202X-E DSO for for a reference ac signal (3 months out of calibration), and a TekPower PSU for sample dc voltages. I’m using an iPhone 6S with latest SW. The unit was never more than 12” from my phone.
My Pokit arrived physically undamaged. I removed the tape from the battery & reinstalled. On power up, it was unable to connect with the app. I checked the battery, which was good at 3.2 volts. I replaced the battery with a new one (also 3.2vdc) to be safe. Still no connect.
Next I checked the fuse, which ohmed out ok, and re-seated it. When I tried to reconnect, the app timed out. After several attempts, it connected. I unspooled the cables and first checked the temperature, which read 91.4F in a room at 68F (it’s been sitting at room temp for a couple of hours). OOPS.
Next, I checked the continuity against several resistors, but the reading is always ‘inf’, regardless. Even with the probes shorted, it reads ‘inf’. OOPS.
Diode continuity reads ‘inf’ regardless with probes shorted and open. OOPS.
On a 3.3 vdc supply, the device reads 0.00 mV. Same on 5 vdc. OOPS.
In the oscilloscope mode, a 1 v, 1 kHz square wave does not display at all. OOPS.
In the Devices window, I was prompted to update from FW v1.1 to v1.2. This completed successfuly. COOL!
However, at no time did the device list in the list of devices, though it appears below icon, showing the MAC address (90:FD:9F:32:47:91). Clicking the Find button has no effect. Clicking Disconnect results in a ‘Not Connected’ message, with the device now in the list of devices. However, clicking the name gives a ‘Connect Failed’ dialog box. After several retries, it was able to reconnect. OOPS.
I repeated all of the above tests with the same results. OOPS.
I removed the battery and gave it several minutes to do a hard reset. I reseated the battery and repeated all of the above tests with the same results. OOPS.
At this point, I think I have a bad device (I’m in the USA and shipping was several days), but I want to make sure I’m not missing anything. So:
1) any suggestions? and,
2) if it is dead, how do I exchange it?
Thanks in advance! -russg
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