A new firmware version (release 1.75.2) has just been published for SpringCard H512 and NFC’Roll.
This firmware improves the behaviour in card emulation and peer-to-peer (initiator) mode, allowing more reliable exchanges with most smartphones running either in reader or peer-to-peer (target) mode.
The same version will be released very soon for H663 and Prox’N’Roll PC/SC.
NFC’Roll
The new firmware is here: https://files.springcard.com/firmwares/springprox/1-75/2212_pn512_nfcroll-10_1-75.mot
The firmware upgrade procedure is here: https://tech.springcard.com/firmware-upgrade/csb6-firmware-upgrade/
H512
The new firmware is here: https://files.springcard.com/firmwares/springprox/1-75/uc3b0256_pn512_h512_1-75.hex
The firmware upgrade procedure is here: https://tech.springcard.com/firmware-upgrade/h663-h512-firmware-upgrade/