The easiest way to know the release date of the phone is to look at the documents to him. Find a warranty card or receipt. There will be mandatory indicate the number when you made this purchase.
If the documents are missing, do it the other way: dial the number *#0000#. On the screen appears the message. The first field is the phone model, the second version of this release, but then the date you need. But it is worth considering that if you did the firmware on your phone, after dialing the number will appear in the date when you made the update last time.
If you have a phone of Sony Ericsson, the release date to find easy. Open the back panel cover and remove the battery. On its surface, find the line which reads the number format 00W00 (e.g. 06W21 - 2006 21 weeks).
If you have a mobile brand Nokia, then to find the production date, proceed as follows: turn off the phone and remove the sim card. Then put it back in the nest. After restarting the phone, booted, will prompt you to enter the current date and time. You will see the date the default is release date your mobile.
If you have a smartphone, there is need to recruit a different team than the specified in the first step. In this case, you write *#06# and the screen will display the imei of your mobile, data which will contain the date of issue.
If you got the sim card from the phone and rebooted it after this, then please note that when enabled, the program will show you the date, which means when your phone went on sale. Most likely this number will coincide with the release date (i.e. the year the same), but keep in mind that a month out of mobile may be different.
Advice 2: As at the battery to determine the date of issue
Shelf life of car battery is limited, and therefore, before buying a new battery, you should look up the date of its production. Each manufacturer of different hang tags, battery, which complicates the determination of the year of manufacture.
Code to determine the date of manufacture is applied to the battery case. Some manufacturers place markings in various places on the battery. For example, accumulators Centra marking located under the label Danger, and battery Titan code is printed on the top cover. Sometimes the code of the product is indicated near the positive terminal, or at the back wall.
Consider the applied marking. If the code is "II 12", means the battery was made in February 2012. The first digit indicates the month number, the second indicates the year of manufacture. Batteries Inci, Medalist, Tyumen, Ultra Hugel, "Aktekh", "Cupid", "the Beast", "Zid", "Pilot", "Titan", etc. date is specified in the normal manner and does not require decoding.
If the marking of the battery has the appearance of 12B01E1, the date will indicate the first 5 characters. The first two digits contain the year of manufacture. The referenced letter provides information on the month of manufacture (a – Jan, B – Feb, C – March, etc.). The figures, coming after 3 characters indicate the day of production.
Batteries Varta and Bosch have their own system of designating the year of manufacture. Marking has the form H1V111302. The first letter indicates the country of origin (H – Germany, C – Czech Republic, S – Sweden, A – Austria, F — France, E – Spain). The first and second figures speak about the specifics of shipment and number of the conveyor belt on which was assembled the battery. The next digit — the year of issue, the last in the numbering. The third and fourth digits indicate the month. In the fifth and sixth position displayed the day of the month, and the seventh digit is the number of shifts during which was collected the battery.
Most battery have a warranty period of 24 months, however, there are batteries that have great life. The warranty period and the battery life is determined by the firm and workmanship.