Previous FW: OEM-DES-M890-TTL 20210512 11:42 AM

New FW: OEM-DES-M890-TTL 20211028 11:42 AM


S/Ns:
DES-R835-USB-210001
DES-R835-USB-210002
DES-R835-USB-210003
DES-R835-USB-210005
DES-R835-USB-210006
DES-R835-USB-210007
DES-R835-USB-210008
DES-R835-USB-210009
DES-R835-USB-210010


Video: same behaviour when connected to self-powered USB-Hub

00:00 standard current consumption 37…40 mA
00:06 ISO14443A Active-Idle, current consumption rises to 130…175 mA, connection lost
00:08 current consumption drops to app 30 mA
00:35 current consumption rises to standard value, connection is now possible again