Can't hear caller after updated from 4.3 to KitKat 4.4.2 on Moto G I have a retail Motorola Moto G 16 GB with 4.3.

After updating to KitKat 4.4.2 (using the official Motorola process), I can't hear the caller's voice. But when activating the speakers or using a headphone I can hear the other side. Prior updating there where no problems at all.

I also did a full factory-reset, which did not helped.

With this issue the phone is practically unusable, I appreciate any help.
As stated in ayush's answer, Motorola customer care advises to wipe the cache to solve the issue, and it reportedly worked.
As ayush omitted the steps required to follow whis advice, here are the steps to do &quot;Wipe the cache partition&quot;. This will remove any temporary files that may be causing the problem, but will not delete your files or settings.

With the phone powered off, press the VOL DOWN KEY for 2-3 seconds, then POWER key, then release.

The device will display different BOOT OPTIONS

Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select

Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.


The device will display the Motorola logo and then the Android in distress (logo with Exclamation mark)

Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key

Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the POWER key and VOL DOWN key, and start the process again.


The device will display additional menu options (Text will appear in BLUE)

Use the VOL DOWN Key to scroll to wipe cache partition and the POWER Key to select this option

The device will then perform the partition wipe

The device will reboot and start the normal power up sequence