A. First make sure through software setting u did not solve the problem.
B. Check the speaker if is damaged, if damaged speaker then just change a speaker will be ok.
C. After changing the speaker still can not solve the problem, then u need to check the sound IC on PCBA.
If you want to connect to your Android tablet computer but not connecting, how do you repair it?
When you want to update your Android tablet via computer but your Android tablet is not connected
First you need to check micro-usb. If micro-usb is some kind of damage then you need to change micro-usb
After changing micro-usb, even if the computer is not connected then we need to change the USB IC
If USB is not connected even after changing, we need to change cpu ic
After changing the CPU IC, there will be no more problems.
Of course your Android tablet will connect to the computer
A. LCD or LCD FPC cable damaged, need to change new LCD.
B. FPC cable lose, need to re-connect the FPC cable.
C. LCD IC which on mother board problem need to change the PCBA LCD IC. Normally u can test it through another LCD.
A. Please go to setting menu, set it as following:
Settings —–Developer options —-USB Debugging (Select it)
Mark: For Some of Android version Tablet PC, please continue click “Build Number” 3-4 times, then enter into “Developer Options”
B. It is the problem of the cable, please change another cable and try again.
The storage has used by the OS system and drivers , so the storage which showing always not completely, same like our mobile phones storage showing .
Dail *#06# on your device, each SIM card slot against 1 IMEI number.
A. Make sure the tablet model is supporting 4G, and the band are working in your country operators.
B. Check if u have switched on the 4G switch.
A.After insert the sim card must restart the tablet.
B.Please make sure the sim card is inserted in a correct way.
C. Open the internet connection option.
D. Go to setting to set up the correct APN which getting from the sim card operator.
E. Sim card slot damaged, need to send for service.
F. Input “*#06#” on dialer interface and get IMEI number, then confirm whether it is adapt to the local operator. If it cannot be used, please connect our service support team by email.
A. Keep press the power button more then 10 seconds.
B. Use a pin to press the rest button.
C. Software not mach, need to find another correct version software.
Please to to our website support-download page, then find the model of your tablet to find the firmware, or u can use the search option to search it. If u did not find the version 100% mach your device, please send a mail to our service support mail address firstname.lastname@example.org, and attach the picture of mother board and tablet serial number or IMEI number.
If the tablet is hanging on the booting logo page.
A. Keep pressing the power button to restart tablet.
B. Use a pin to press the restart button to restart tablet.
C. If still hanging on the booting logo then the software damaged, need flash firmware.
If the tablet can not be power on.
A. Keep pressing power button 10 seconds and check if it can be on.
B. Use a pin to press the rest button and see.
C. Flash new firmware,