Frequently Asked Questions (FAQs)
About Products
How to install other Apps (Android version)?
Way 1: a) Copy the installation file of APP you need in apk format to the TF card in the "update" directory. If this directory does not exist, create one.
b) Insert the TF card into the tester, click “Update Application - Local Update” to find the app and install it.
c) Once the installation is complete, find the application in “My Apps” on your tester.
Way 2: After the device have an Internet connection, search for the apps on browser and download the APP(Android version) you need. Once the installation is complete, find the application in “My Apps” on your tester.
How to update the tester's software?
After the tester has an Internet connection, click “Update Application - Online Update” for application update.
Why the tester still won't turn on after charging for a few hours?
There is a paper piece isolating the battery. Before using the tester, open the battery cover and remove the paper sheet.
Troubleshooting steps for charging failure
A. If you purchased the tester with a DC15V power input. please follow these steps:
1. Check Power Supply Voltage
- First, measure the 15V power supply voltage using a multimeter to verify if it is within the normal range.
2. Test Device Power Input Circuit
- If the 15V power supply is normal, insert the power adapter into the device and remove the battery.
- Measure the voltage at the battery contact pins in the battery compartment (the two rows of pins correspond to positive and negative terminals).
Normal voltage: 12.6V
Fault indication:0V or 15V → Indicates a problem with the device's internal circuitry.
3. Check Battery Voltage
- Measure the battery voltage separately.
Normal range: 11.1V–12.6V
Fault indication: 0V→ Indicates a faulty battery
B. If you purchased the tester with a DC12V power input. please follow these steps:
1. Check Power Supply Voltage
- First, measure the 12V power supply voltage using a multimeter to verify if it is within the normal range.
2. Test Device Power Input Circuit
- If the 12V power supply is normal, insert the power adapter into the device and remove the battery.
- Measure the voltage at the battery contact pins in the battery compartment (the two rows of pins correspond to positive and negative terminals).
Normal voltage: 8.6V
Fault indication:0V or 12V → Indicates a problem with the device's internal circuitry.
3. Check Battery Voltage
- Measure the battery voltage separately.
Normal range: 7.6V–8.6V
Fault indication: 0V→ Indicates a faulty battery
About Shipment
How about import taxes and duties?
Prices do not include taxes and duties. Please note that recipient will need to pay the taxes and duties, the exact amount of which depends on the policies of recipient's country/region.
How long does it take to receive the goods after placing an order?
Delivery Time = Order Handling Time + Transit Time
Order Handling Time
Usually 2 business days (depend on holiday, product and quantity)
Transit Time
1) If your address to receive items is in the United States,
We ship items from Amazon US warehouse, transit time is 2-7 business days
We ship items from Chinese warehouse, transit time is 7-14 business days
2) If your address to receive items is not in the United States, we will ship items from Chinese warehouse
Expedited Shipping: 7-14 business days
Standard Shipping: 15-20 business days
Does the order have free shipping?
We have inventory in Amazon US warehouse, and we can offer you free shipping If your address to receive items is in the US.
The shipping cost of your order will be calculated and displayed at checkout, If your address to receive items is NOT in the US.