One tire sensor has no signal

Hi I have one sensor gives no signal I changed the battery but also gives no signal, what should I do?

Hello @aaalaaa

Thank you for letting us know the issue.
When you changed the battery, have you noticed if these pointed parts are well attached? Also, I know this may be stupid to ask, can you check if the battery was inserted in the correct direction? With the positive side up. As shown in the pic: