HMF2525 / 2550: Firmware-Update (ID #518) A Firmware-Update can be done with an USB-Stick. Please make sure that the memory stick is FAT or FAT32 formatted; NTFS will not be supported:
1. Please download the latest firmware from our website www.hameg.com and save this file on a USB-Stick into the root folder.
2. Plug the USB-Stick into the USB-interface in front of the HMF.
3. Please press the key MENU and choose with the softmenu button UPDATE.
Attention! At the time of the update the unit will not respond on any inputs and the display will be resettet. Does not switch off the unit during the update process. A interruption of power supply can destroy the unit! 
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