Products > Test Equipment

New EEVblog BM786 Multimeter

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Microdoser:

--- Quote from: EEVblog on March 28, 2021, 10:33:41 am ---
--- Quote from: NoisyBoy on March 26, 2021, 06:45:08 pm ---Dave, I like the meter, perhaps one thing you could communicate back to the manufacturer is the ability to do field firmware upgrade would have provided a great differentiation that all buyers would love to have, and helps to reduce their warranty cost.
--- End quote ---

I've already did that when I first heard that it was possible with gthis new design (the BM235 and others use OTP parts). But they clearly don't want users upgrading the firmware. If you want an answer on why you'll have to ask them directly, I don't know.
Ultimately I (as a dealer) will have the ability to do firmware upgrades once I get the hardware to do so, but it's all under NDA I'm afraid.

--- End quote ---

I suspect that, in part, they don't want third party firmware being installed.

Fungus:

--- Quote from: Microdoser on April 17, 2021, 11:42:49 am ---I suspect that, in part, they don't want third party firmware being installed.

--- End quote ---

I suspect that the meter's CAT rating depends on the firmware so they don't want anybody compromising that.

Microdoser:

--- Quote from: Fungus on April 17, 2021, 12:06:23 pm ---
--- Quote from: Microdoser on April 17, 2021, 11:42:49 am ---I suspect that, in part, they don't want third party firmware being installed.

--- End quote ---

I suspect that the meter's CAT rating depends on the firmware so they don't want anybody compromising that.

--- End quote ---

That would be one of the reasons they don't want third party firmware installed, yes.

EEVblog:

--- Quote from: EEVblog on March 28, 2021, 10:43:34 am ---
--- Quote from: Kleinstein on March 27, 2021, 06:36:02 am ---If really wanted a suitable place for a connector to allow a SW update would be in the battery compartment.
--- End quote ---
That's where it is on the BM786. Or at least that's what I assume it is they haven't given me the programmer hardware or instructions yet. But there is a mystery header in the battery compartment.

--- End quote ---

Mystery battery compartment header confirmed as the programming port (obviously).
I am also now in possesion of the programmer so am able to update stock on hand if a firmware update comes out. Have not tried it yet though.
Please do not ask for any details, I am not able to reveal any info about it.

EEVblog:

--- Quote from: ogdento on April 17, 2021, 06:22:18 am ---I saw that Dave and some others checked various headers on the unit and got no data coming out, but I noticed that the lcd driver (HY2613C) has an i2c interface... are the sda/scl lines exposed on any pads/test points? 
If so, maybe the data going to the lcd could be read??  (sortof how you can read the older brymens lcd data via the IR adapter)

--- End quote ---

Photos: https://www.flickr.com/photos/eevblog/albums/72157718973141297

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