Krimston Dual SIM FAQ


What is Krimston Dual Sim + PowerBank ?

What are Krimston Dual SIM's features?

Which GSM bands and networks does Krimston Dual Sim work on?

How do I switch between SIMs?

Can I use my air pods or other wireless Bluetooth devices?

Installing Krimston Dual SIM

How To Use - 3 Easy Steps


I am unable to receive an SMS code when I am trying to log in the Krimston app

When I try to pair the case with the iPhone, it says that the device is not compatible with the iPhone

I can’t see the device name under the pairing list in the Krimston app

I did pair the case with the iPhone but can’t call or send an SMS

My case is not charging my phone

I charged the case for 8 hours and I checked the status bar in the app, although the battery is full, it is still not charging

Frequently Asked Questions


How to order?

How can I contact you?


Do you ship internationally?

How long does delivery take?

Can you provide me with a tracking number?

I've entered the wrong shipping address, can I change it?

What to do if I still have not received my order?

Return Policy

What if I need to return something?


Why don't you charge taxes?