Why, when buying iPhone 7, it is important to know the model number?
In this article we will tell you for what you need to know the number of the seventh iPhone model.
iPhone 7 and 7s Plus has two types of modems - from Intel (GSM / WCDMA / LTE) and Qualcomm (GSM / CDMA / WCDMA / TD-SCDMA / LTE). As specialists were identified by Cellular Insights, they are very different from each other.
In his tests, the company compared the operability of both modems in the LTE network. The results were quite unexpected. Both iPhone versions can skip the signal at the maximum speed, but when it is reduced, the reaction turned out to be different.
The modem provided by Intel began to lag noticeably. He began to work worse than the same smartphone, but with Qualcomm modem. And the indicators had differences always one level.
This situation is observed when working in any range - Band 12, 4 and 7.
It is for this reason that you need to know the model of your iPhone to determine how good your connection with the Internet will be.
Band 4.
To purchase the iPhone 7 with Qualcomm modem, it is necessary that its model be A1660 (iPhone 7) or A1661 (iPhone 7 Plus). To see what exactly you have, pay attention to the rear lid of the smartphone.
IPhone Serial Number 7
No less important is the IMEI information information, as it allows you to check the originality of the device, as well as its official warranty.
To verify this data, you can use the official service of the Apple site. This operation is performed in several steps:
- First, find the IMEI device. It is written on the back cover of the device or in the settings
IPhone Serial Number 7
- Open the checks section and enter the serial number
- Choose "Proceed"
Checking service rights
- Explore the data obtained
Results check
Here you will see data on color, models, technical support and warranty period. Immediately you will display alert about the need to activate if you have not spent earlier.
Based on this information, you can judge the originality, to find out whether the case is replaced and the number of your model matches.