Xdrip: Checksum error on US 14 day sensors

Created on 5 Mar 2019  路  12Comments  路  Source: NightscoutFoundation/xDrip

The 14 day sensors have recently been made available in the US, however they now no longer work with xDrip. I suspect this is due to some sort of encryption which is different from the international sensors.

When scanning directly with NFC the error is: "Read data but checksum is wrong."
When connected via the MiaoMiao: "We have all the data we need 363 checksum_ok = false"

Is there any plan to support the new US 14 day sensors and is there anything I can do to assist with that effort?

Most helpful comment

I would also appreciate a update. This would be huge for US users.

All 12 comments

This is work in progress. Not supported right now.
Will let you know if we need help.

My pharmacist said they are phasing out the 10 day sensors in the US quite soon. I keep requesting them over the 14 day sensors due to the 14 day sensor incompatibility with miaomiao and xdrip+. Please keep us posted on the 14 day sensor progress. We really appreciate it. Thank you guys for all of your hard work and time.

US 10 day was discontinued as of 4/30/2019. I have a few 10 day sensors left but if I cant use xdrip on the 14day I'm going to have to find something else. Has anyone got the 14 day to work?

I really would appreciate an update on this as well. Thank you, guys!

I would also appreciate a update. This would be huge for US users.

This has become somewhat more urgent as the 10 day sensors are no longer available. I know that these things take time, but an occasional progress update would be greatly appreciated.

Also, for whatever it might be worth, I have posted a $100 bounty on this issue via BountySource:
https://www.bountysource.com/issues/70929440-checksum-error-on-us-14-day-sensors

I've thought of the following option for now.

Is there any progress on this?

Sure, @Stevefnfal
See progress on https://github.com/tzachi-dar/LibreOOPAlgorithm

Do you want to help testing the solution there and let us know how it is going?

@tzachi-dar the LibreOOPAlgorithm repo has been taken down... Does this mean we won't get 14-day US sensors support any time soon...?

A solution for 14 days us sensors exists here: https://medium.com/@miaomiaoreader/how-to-make-libre-us-14-days-sensors-work-with-miaomiao2-on-xdrip-35b431a40940

@GrzegorzDyrda there are still clones around (although the issue history seems to be lost forever)
@tzachi-dar If it's still possible to update the solution article, could the filenames be added (they aren't obvious from the gdrive links)? Thx

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