Whereas the common person won’t even have to know the distinction between these two, it’s at all times good to know what the variations are. Each USSD and MMI codes normally start with an asterisk or a pound image/hashtag. These codes are up to date repeatedly as new variations of Android software program are launched, and a few producers have their very own extra particular codes.

The code entry process may be very easy and solely requires you to carry up your dialer keypad and enter the suitable quantity sequence. It is vital to notice that some codes are carrier-specific, so they will not work on all gadgets, or maybe solely on older fashions. So in case your telephone would not reply to a code, do not dwell on it, simply transfer on and discover one other one.

USSD codes

USSD stands for Unstructured Supplementary Service Information, and these codes are usually used to speak between your smartphone and your cell community operator. This additionally implies that you virtually at all times must be linked to your service for USSD codes to work. 

Prior to now, USSD codes had been used to begin/cease particular value-added companies. They had been additionally useful in letting you already know in regards to the knowledge utilization and pay as you go stability and accessing an entire lot of carrier-specific data. 

Whereas these are nonetheless utilized by smartphone lovers, USSD codes have largely fallen out of favor amongst basic customers as a result of most carriers have their very own app/web site the place most of this data might be simply accessed. USSD codes are usually carrier-specific and can differ from one service to a different. You have to to contact your service for those related to you.

MMI codes

As for MMI codes, these are a part of one thing generally known as the Man-Machine Interface schema and are usually particular to a smartphone model or mannequin. MMI codes allow you to entry a number of attention-grabbing issues in your smartphone – starting from your IMEI quantity and SAR values to hidden menus which are usually utilized by smartphone engineers and restore companies. 

For instance, a number of smartphones let customers kind in an MMI code and allow them to entry a ‘take a look at’ menu. This menu lets customers shortly carry out numerous assessments on their smartphone starting from the digital camera and vibration motor assessments to speaker and show assessments.

Word that there are only some MMI codes that usually work on all Android smartphones. We’ve got listed the most well-liked ones within the generic record of codes under.

These codes are principally common and may work on all Android gadgets, regardless of the producer. There would possibly nonetheless be service restrictions on sure codes, although, so they don’t seem to be all assured to work.

Different codes

Keep away from these codes!

Suppose earlier than you employ them!

These aren’t the key ones, however they don’t seem to be so well-known. USSD, or Unstructured Supplementary Service Information, codes connect with the telephone’s community as soon as dialed to carry out sure capabilities, like discovering out how a lot credit score you have got left in your pay as you go telephone or how a lot knowledge you’ve got used this month. They alter usually, and the codes differ from service to service.

Listed here are a couple of you possibly can attempt for a few of the main US carriers, together with hyperlinks to extra carrier-specific codes:

AT&T

Verizon

T-Cellular

There’s a great probability you’ll by no means want to make use of most of those codes, however in case you do, now you already know the place to seek out them. Do you have got any secret codes you employ repeatedly? Or are there any attention-grabbing ones we missed? Please tell us within the feedback!