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Electronics => Repair => Topic started by: goaty on June 24, 2020, 02:36:55 pm

Title: Voltcraft VC-890 by UNI-T Firmware
Post by: goaty on June 24, 2020, 02:36:55 pm

Anyone got firmware for the EFM32 on a Voltcraft VC-890 made by UNI-T ?

Unfortunately the chip is read-protected (I tried reading back using  ESP-PROG and OpenOCD).

One I/O-pin is dead because the meter is not switching into one mode when turning the knob.

Have already replacement MCU, but no software...

Unfortunately UNI-T is not responding, and Conrad has no firmware.

Title: Re: Voltcraft VC-890 by UNI-T Firmware
Post by: goaty on July 09, 2020, 01:15:18 pm

Unfortunately there is no way getting the firmware, so the meter goes into the bin.
I´d really wish we had right to repair by now...