Field Test Mode is created to enable iPhone users to gain access to in-depth information about cellular signal and cellular connection. Field Test Mode is developed for engineers and cellular operators and many people will not need to utilize it on a regular basis.
Field Test Mode in iOS 14 Theres now a Home section with LTE Cell Serving Info, in addition to a menu area that has other information like gadget details and breakdowns of LTE, UMTS, and GSM performance.
Field Test Mode was previously useful since it could turn the cellular signal bars into a mathematical measurement, however that is not something that deals with modern-day iPhones with current versions of iOS.
Much of the details readily available in iOS 13 and iOS 14 is the exact same when it pertains to Field Test Mode, so the change is mostly connected to develop and making it simpler to navigate through the hidden app.
Field Test Mode in iOS 13 It can still sometimes be helpful to see cellular signal represented as a number, and thats still possible on iOS 13 and 14. After entering the Field Test app, tap on LTE (from the main menu on iOS 13 or the menu list on iOS 14) then tap on “Serving Cell Meas.”
The measurements that read “rsrp0” and “rspr1” are your cellular signal strength in decibel-milliwatts. These numbers are constantly unfavorable, and a lower unfavorable number is better than a higher negative number and represents a more powerful connection.
Apples upcoming iOS 14 update presents multiple style changes, consisting of a new look for the hidden Field Test Mode feature on the iPhone.
As noted on the MacRumors forums, Apple has upgraded Field Test Mode to provide more useful information at a look.
Field Test Mode in iOS 14 You can access Field Test Mode on an iPhone by opening up the Phone app, inputting * 3001 # 12345 # * and pressing the phone button. It will not telephone, but will instead open the Field Test app.