proxmark3 easy from you guys (about a month old), windows, used the getting started with the proxmark3 post so: proxspace, iceman repo, reflashed this afternoon just to be sure it wasn’t something to do with that.
terminal output
pm3 ~$ ./proxmark3/client/proxmark3.exe com8
[=] Session log D:\ProxSpace\pm3/.proxmark3/logs/log_20210724.txt
[+] loaded from JSON file D:\ProxSpace\pm3/.proxmark3/preferences.json
[=] Using UART port com8
[=] Communicating with PM3 over USB-CDC
██████╗ ███╗ ███╗█████╗
██╔══██╗████╗ ████║╚═══██╗
██████╔╝██╔████╔██║ ████╔╝
██╔═══╝ ██║╚██╔╝██║ ╚══██╗
██║ ██║ ╚═╝ ██║█████╔╝ Iceman
╚═╝ ╚═╝ ╚═╝╚════╝ bleeding edge
https://github.com/rfidresearchgroup/proxmark3/
Warning: QT_DEVICE_PIXEL_RATIO is deprecated. Instead use:
QT_AUTO_SCREEN_SCALE_FACTOR to enable platform plugin controlled per-screen factors.
QT_SCREEN_SCALE_FACTORS to set per-screen DPI.
QT_SCALE_FACTOR to set the application global scale factor.
[ Proxmark3 RFID instrument ]
[ CLIENT ]
client: RRG/Iceman/master/v4.13441-276-g9625369fe 2021-07-24 11:11:32
compiled with MinGW-w64 10.3.0 OS:Windows (64b) ARCH:x86_64
[ PROXMARK3 ]
firmware.................. PM3 GENERIC
[ ARM ]
bootrom: RRG/Iceman/master/v4.13441-276-g9625369fe 2021-07-24 11:13:15
os: RRG/Iceman/master/v4.13441-276-g9625369fe 2021-07-24 11:13:58
compiled with GCC 10.1.0
[ FPGA ]
LF image built for 2s30vq100 on 2020-07-08 at 23:08:07
HF image built for 2s30vq100 on 2020-07-08 at 23:08:19
HF FeliCa image built for 2s30vq100 on 2020-07-08 at 23:08:30
[ Hardware ]
--= uC: AT91SAM7S512 Rev B
--= Embedded Processor: ARM7TDMI
--= Internal SRAM size: 64K bytes
--= Architecture identifier: AT91SAM7Sxx Series
--= Embedded flash memory 512K bytes ( 53% used )
[!] Communicating with Proxmark3 device failed
[=] Running in OFFLINE mode. Use "hw connect" to reconnect
[usb] pm3 -->
And the two t5577 cards that also don’t work (but used to) came with the pm3e