To reinitialise the scale, first delete users registered in the scale then delete the WiFi configuration.
Delete the WiFi configuration
- Remove and replace a battery.
- Press the SET button located in the battery compartment. The message SET will be displayed on the scale.
Once the scale is on SET, remove the batteries or replace the plastic battery protection tab if you are not planning on reinstalling the scale immediately to save the batteries.
*credit to Sylvain of iHealth Labs EU
https://helpcenter.ihealthlabs.eu/hc/en-gb/articles/115005874009-iHealth-HS5-How-to-reinitialise-the-scale-