Originally Posted by CapSizer View Post
My G2S worked great for two days, then started having intermittent and worsening microphone problems. Now more or less permanently dead, except for the occasional brief spasm of life. Works fine with bluetooth headset, everything else worked fine. Tried factory reset, nothing really helped. My guess is that it is a bad part or solder joint, so will send it back in the hope of getting it replaced. Anybody else with a similar problem?
Ey! I see similar problem in a Jiayu G2 forum but I think you can try it and tell us

Adjust microphone settings in the phone
1 Install Mobileuncle MTK Tools (Google Play)
2 Enter in to Engineer Mode Menu (MTK)
3 Audio / Normal mode / Type / Mic / Level
4 Set up the 6 levels:
Level 0-255
Level 1 to 235
Level 2 to 215
Level 3 to 205
Level 4-195
Level 5 to 185
Level 6-175
* You have to set all levels to value. Every time you go to a level you must push Set and OK.
5 You must presh Ok again before exit app
6 Restart phone.

**Make at your own risk