I am not mad. I am having problem and want solution. To throw to the garbage is not acceptable. And wifi is limited in my case. Don’t be mad at me because i don’t give up easily.Hi Sam - Please look at the date on PCB board that you uploaded. It says "2010". That IS the stone age with regard technology. It is 15+ years old. It DOES NOT SUPPORT 4G or 5G communications. It is not an upgradable device. A brand new device would have to be designed and manufactured, built around an LTE radio.
Your NEW iPhone has radios for both GSM and LTE networks and is designed to work with both. You can't compare that to a device designed 15 years ago that was designed and built before 4G or 5G existed.
I am sorry that you don't understand the difference between "3G" and "4G" but there are very different technology. Different radios, different protocols, etc. They can't be interchanged. It has very little to do with the "cost" of the radio and everything to do with the time and cost of engineering a new solution.
You can't be mad at GHL, they have done nothing wrong.
You can't be mad at your carrier, the whole world is moving on. GSM is OLD technology. It costs them money to keep the infrastructure alive.
You can't be mad at me. I am just trying to help you understand.
Your options are limited, just as they would be if you still wanted to use a fax machine to send orders or a dialup modem to connect to the internet or a VHS player to watch movies. The world has moved on to new technology and it is often not backwards compatible and almost never forward compatible.
Best of luck.