<![CDATA[how to write key A and Key B onto WS1850S]]>I recently get a M5 Dial V1.1 and I have card with mifare 1k card encrypted with known key A/B and read data from block 1.
I used to work with Arduino and rc522 and it works fine.
Now I tried to migrate my project to M5 Dial and a had some problems on writing authentication keys on WS1850S and get feedback of authentication status.
in UIFlow 2's RFID instruction didn't mention about the encryption things.

]]>https://community.m5stack.com/topic/7522/how-to-write-key-a-and-key-b-onto-ws1850sRSS for NodeWed, 29 Apr 2026 06:02:08 GMTFri, 25 Apr 2025 17:13:00 GMT60<![CDATA[Reply to how to write key A and Key B onto WS1850S on Fri, 27 Jun 2025 05:44:45 GMT]]>Hello @peolsolutions

you are starting to confusing me.

Your posts often are quite vague and not specific to M5Stack hardware / software.

Also why would you post a very similar response again about a month after your last one? Doesn't make sense to me.

Care to explain you reason(s) for doing that?

Thanks
Felix

]]>https://community.m5stack.com/post/29346https://community.m5stack.com/post/29346Fri, 27 Jun 2025 05:44:45 GMT<![CDATA[Reply to how to write key A and Key B onto WS1850S on Fri, 27 Jun 2025 05:24:35 GMT]]>To write Key A and Key B onto a WS1850S smart card reader, use compatible RFID software and ensure proper authentication settings. Load the keys securely via the software interface, selecting the desired sector and key type. Correct configuration ensures secure access control and prevents unauthorized data manipulation or duplication.

]]>https://community.m5stack.com/post/29345https://community.m5stack.com/post/29345Fri, 27 Jun 2025 05:24:35 GMT<![CDATA[Reply to how to write key A and Key B onto WS1850S on Fri, 16 May 2025 06:59:14 GMT]]>To write Key A and Key B onto a WS1850S, connect the device to your PC and use compatible software. Place the MIFARE card on the reader, authenticate the target sector using the default key, and access the sector trailer block. Input your new Key A, access bits, and Key B in the correct format. Write the data, verify authentication with new keys, and ensure access settings are not misconfigured.

]]>https://community.m5stack.com/post/29058https://community.m5stack.com/post/29058Fri, 16 May 2025 06:59:14 GMT<![CDATA[Reply to how to write key A and Key B onto WS1850S on Thu, 01 May 2025 06:11:08 GMT]]>Hello @huanfai

looking at the soucre code for UIFlow2 device firmware I think authentication keys are fixed to default values. See here and here.

In ohter words I don't think the RFID blocks in UIFlow2 can handle anything different than default authentication keys.

Thanks
Felix

]]>https://community.m5stack.com/post/29014https://community.m5stack.com/post/29014Thu, 01 May 2025 06:11:08 GMT