Havae to use speakerphone on motorola razr

The speakerphone remains on until you press the smart/speakerphone key again or turn off the phone. You will see Spkrphone Off.
You can also set your phone to turn off the
speakerphone automatically after 20 seconds of inactivity:
Press the center key > wSettings > Initial Setup> SpeakerPhone > 20 sec timeout
Also The handsfree speaker is disabled when you connect your phone to a handsfree car kit or headset accessory.
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Zooless

The other post refers to the process that allows you to use speaker only, instead of automatically selecting earpiece. Unfortunately, this will not resolve your issue, as it appears that your earpiece has a loose connection and must be repaired, or you can continue to use speakerphone, bluetooth (if capable), or wired headset.

These phones can only do one set of speakers at a time. If you want to hear through the regular earpiece take it off speakerphone.

take the phone and have the earpiece replaced on the phone

How do the external buttons work on my device?
adjust your volume key.

you need to take the phone and have the cable connected to the lcd replaced.

YOu should send it to motorola and have them look at it. Then they should give you a price estimate on how much it will me to fix

see nicole what could have happedn ur phone's default speaker must have gone bad, so what u can do u can try to check out the connectivity with ur main chip and than try otherwise change the speaker.

upon receiving a call use the volume button on the side of the Razr to turn up the volume.

When you open the flip on the phone, it will be the upper small silver button above the volume buttons on the left side. Just press and hold until you hear a beep. It should only take 2 seconds.