@Adam Rosenthal Our engineer said the the coreboard is a 15 digit IMEI, do you mean that you connect the AT&T SIM card but it could not recognize your SIM?
As to the sound quality, we have a new firmware to get it improved and it's about to be released in May. We will let you know then.
@Support Dasaita 
I have already been through this. Count the digits on my IMEI. don't worry about the ATT card. It doesn't work anyway. My unt does not have enough digits in the IMEI
@Adam Rosenthal Please kindly go to Settings > System > Factory reset the head unit to check if the page will change or not.
In the mean while, down the zlink（v5.4.40）：https://www.dropbox.com/scl/fi/jrya42umgerwzjo8atxtx/zlink5-hengchangtong-release-v5.4.40-34f63965f_jg.apk?rlkey=20lv6wzz6ci0qgchc7fvb7pb2&dl=0
Go to APKinstaller to update the zlink and verify if the microphone quality could be improved or not.
@Support Dasaita I updated with an OTA. It was not in English but I updated it anyway. Now my Sling will not work. Please give me some ideas.
@Adam Rosenthal Hi your Sling is an app, we are not sure what you mean, would you kindly further demonstrate it?
@Support Dasaita iGO question. I reset my unit and Igo was missing I found a link in the forum and downloaded a file from 2022. I unpacked the file and put it on a USB drive. Followed the directions and I get an error below. Also I noticed there is a Data file zipped up in the system files. I tried unpacking but same error. I inserted the USB, opened the file browser, looked for the APK and installed it. it tried to update and got the error below. Any help would be appreciated. Please give me the steps USA MAPS 
@Adam Rosenthal Hi there, here is the installation guides.
1.Download the map file.
https://www.dropbox.com/s/25nvduso7wdp7bo/iGO_Pal.rar?dl=0
2.Unzip the file and then copy the folder to the USD disk.
3.Copy the file to the Android head unit and then go to filebrowser to install the IGO app.
That worked thanks. @Support Dasaita I just bought the correct OBD and downloaded Torque. I cannot get the Dasaita to pair and connect. I can see it and even changed the pin but it will not pair and connect. Is their a section for OBD like some units?
@Adam Rosenthal We are wondering if you have update the Bluetooth Module to the latest.
1.Please download the bluetooth model.
2.Copy the file and then go to Factory Settings > enter hctbtup to update the Bluetooth and then reboot the head unit to check if the OBD could be connected or not.
You could also refer the instruction below.
https://www.dasaita.com/community/forum/topic/125679/how-to-connect-obdii-on-g12#post-270205
@Support Dasaita It works now. I have another question. I went to the factory settings and set the mic to external. When I am in Apple Carplay no one can hear me. Silence. When I exit Carplay people can hear me in Bluetooth only. Any suggestions?
@Adam Rosenthal We are wondering if you could update the firmware to the latest and verify if the issue persist or not.
G12（20240606）：https://www.dropbox.com/scl/fi/x3r7ft7j8nqbtsaipd9js/update.zip?rlkey=znnmon2vqag8j2v7nxzsv0ewd&dl=0
@Support Dasaita I have the G12 with the latest Bluetooth, system and firmware. When the mic is set to external, no one can hear me when I use Carplay. It works without using it.
No il microfono esterno non funziona, e' cosa ormai risaputa e riportata anche dal supporto Dasaita
@Adam Rosenthal Please set it Internal, we will block this settings in the future in case any one want to set it external. Your understanding will be appreciated.
@Support Dasaita I am frustrated. I spent 15 USD for the connector from Dasaita and 40USD for a top-line Mic. Your internal mic is abhorrent. I have to carry earpods because the call quality is so bad, and now you're saying you will block it. Why cant you make a product that works? I bought the PX6 for USD500 and USD600 for the G12. I am at a loss for words. Now my Sling app no longer works after I updated.
@Support Dasaita the external mic included with the G12 doesn't work? I thought the latest firmware fixed the issue with the mic.
@Long Hoang The external Mic Setting in the factory will be block in the future firmware, we will set it Internal default.
@Long Hoang he just can't make this unit work properly. I don't understand why they can't just sell it and it works.
@Adam Rosenthal Please just go to Factory Settings > Other > Set the External Mic to "Internal", the sound will work normally, we will Set it to internal microphone by default and block this option for buyer to reset it. Could you please let us know what do you mean that Sling app could not work, you mean it has no sound?
@Long Hoang Please just go to Factory Settings > Other > Set the External Mic to "Internal", the sound will work normally, we will Set it to internal microphone(it will work for internal and external) by default and block this option for buyer to reset it in the future firmware.
