Libre 2+ EU with serial number 301 HowTo

[PhilTU]

xDrip+ / Libre 2/2+ EU/UK "help" document.

Hardware data source is Libre Bluetooth.

Connection to sensor established by NFC scan, not Bluetooth scan or pairing.
This is enabled in NFC settings of xDrip+. Make sure faster multiblock is off.

Libre 2/2+ needs OOP2 helper app for decoding, download at
https://drive.google.com/file/d/1hkbs60Bv2udTlMS81UStCdY4RaHR0V57/view?usp=sharing

Running Librelink / Libre 2 app at the same time as xDrip+ is not supported.

The Libre 2 reader will interfere with connectivity if it started a sensor, it needs to be
isolated by distance or in a metal enclosure.

Setting "calibration" to OFF is recommended at least initially.

xDrip+, OOP2 and the System Bluetooth app all need to be unrestricted / allowed to run in background /
excluded from Battery Management.

The OOP2 version above is from June 2025 to use it with Libre 2+ sensors with serial numbers
starting 301 requires a version of xDrip+ from 20/6/25 or later.

Note that this version is later than the last "stable release" so you need to go and get it
from the Nightly repository https://github.com/NightscoutFoundation/xDrip/releases

20/6/25 version
https://github.com/NightscoutFoundation/xDrip/releases/download/2025.06.20/xDrip-plus-20250620-1490f37.apk

Navid Fo keeps a list of releases at https://navid200.github.io/xDrip/docs/ReleaseNotes.html

Also a guide to installing xDrip+ is linked from there.

If you want help in Facebook group https://www.facebook.com/groups/xDripG5/?sorting_setting=CHRONOLOGICAL
please read a few posts and use the search to reduce repetition.

A common mistake with Libre Direct connection is to try to pair or bond the sensor using Bluetooth,
the xDrip+ System Status page / BT device (swipe sideways) shows this as Bluetooth Pairing:
this should be set to Disabled, you can tap it to toggle it off/on or reinstall if it is stuck.
Typical error message is "Not bonded". Correct display is "Disabled, tap to enable".

If you are still stuck post your xDrip+ status screens - classic and Bluetooth - and the OOP2 screenshot
with a description of the problem. Do not obscure serial numbers or other useful data.

Phil Thompson
13/8/25