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Hmm...
There could be 2 possible sources for this problem:
1. the Android 2.1 (relatively old) could be causing the microphone to not function.
2. Something else in the Galaxy S1 (maybe the model number) is not allowing Viber to use it.
Please go to Settings --> About Phone --> Model Number and let me know exactly what's written under that line.
Samsung Galaxy SI
Model Number: SAMSUNG-SGH-I897
Instead of Android, the SI is Kernel Version 2.6.29 - could this also be a problem?
Hmm...
There could be 2 possible sources for this problem:
1. the Android 2.1 (relatively old) could be causing the microphone to not function.
2. Something else in the Galaxy S1 (maybe the model number) is not allowing Viber to use it.
Please go to Settings --> About Phone --> Model Number and let me know exactly what's written under that line.

Same issue happens on my Galaxy S too,
my model number is GT-I9000
Firmware version is 2.2
Kernel version is 2.6.32.9 root@SE-S506 #1
please help.![]()


I have Samsung Galaxy S, Android version is : 2.3.5
I install viber after 5 minutes write VIBER IS DEACTIVATED ??
Not because of android version ??![]()
I have a galaxy mini
model number: GT-S5570I
Android version:2.3.6
every body can hear me on viber but i cant speak to anyone

how can i know whether i'm using custom ROM or not?
yes i tried it on different wifi networks and it didn't work![]()
When I use viber to call my friends, we can't hear each other. I have re-installed it 3 times. I also reset the phone to facory settings but no improvement. However, for a very short time, viber actually worked fine but again it stopped. Also after every call, it displays a message for Force Close.
The Model Number is GT-15801
Firmware version is 2.1-update 1
Kernel Version 2.6.29 root@SE-S604 #2
I have galaxy S2
Model number:Gt-I9100
Android version 4.0.3
Every time I want to sync contacts, call or text viber tells me: Viber service is currently unavailable or being blocked. Please try again later.
I have re-installed it many times but still the same. It works with wi-fi but not with 3g. Please help!
i have agalaxy s i 9000 and use viber with my friend but he use agalaxy s11
but i donot hear him or he doesnot hear me???