Products > Test Equipment
EEVBlog 121GW Discussion thread
oliv3r:
Hey all,
I seem to be stuck on the IAP- 'down' screen for some 20 minutes now, trying to update from 1.58 (beta) to 2.04. Any reason why? or should I just restart it ...
Scottjd:
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-firmware-details/msg2828400/#msg2828400
If you downloaded the firmware and its in a zip package, you have to unzip/uncompress the file first.
Its important to make sure the new firmware file on the SD card is named “EEVBlog.bin” with no spaces in the file name or the meter might hang and just display down.
If the batteries are old then you might want to make sure you have a fresh set of batteries installed before running the firmware update. I think I’ve read the newer firmware will check the battery level first, but i’m not sure about that.
1. Turn the meter off then hold down MEM and HOLD while turning on the meter. You will see IAP on the display.
2. Press the “SETUP” button and it will display “DOWN / DOUUN” and after 5 seconds the meter bar should start rising from the left to right.
3. Once the bar hits the end the meter will restart displaying the new version of firmware installed.
This whole process after it displays “DOWN / DOUUN” shouldn’t take more then 15 seconds.
Someday, maybe someday they will add a timeout to the firmware update menu so it will error out after say 3 to 5 minutes????
oliv3r:
--- Quote from: Scottjd on August 09, 2020, 09:00:18 am ---https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-firmware-details/msg2828400/#msg2828400
If you downloaded the firmware and its in a zip package, you have to unzip/uncompress the file first.
...
--- End quote ---
Thanks for that, (of course) I did all that, but the problem was far simpler. I forgot to move the SD card into the meter :D
--- Quote from: Scottjd on August 09, 2020, 09:00:18 am ---Someday, maybe someday they will add a timeout to the firmware update menu so it will error out after say 3 to 5 minutes????
--- End quote ---
Which would have been super helpful in my case. But I think this is the built-in IAP code, so bootloader change, and remotely (via SD) not update-able? (update-able fine with st-link of course)
Brumby:
If I were Dave, I'd be rather interested to see what the actual cause of the failure was.......
--- Quote from: J-R on October 03, 2020, 08:35:18 am ---Looks like the post was removed.
--- End quote ---
Yes, it has been.
J-R:
Is there a discussion about the fact the 121GW is 99,999 count when in calibration mode?
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