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Secret Cell Phone Codes: Here’s Why You Should Know Them

Different codes on the phone can unlock features you didn’t know before. The codes are usually very simple.

USSD and GSM codes: you need to know that

The abbreviation GSM stands for “Global System for Mobile Communications”, USSD for “Unstructured Supplementary Service Data”. These GMS and USSD codes have existed since the first mobile phone developments, but can also be used on mobile smartphones. Each code has an individual function and can release practical features; this includes, for example, functions relating to call forwarding, the mailbox or the SIM card.

Important codes you should know

First, we have summarized some general codes for you:
*#06# Call up the phone’s serial number or IMEI
*135# Query your own phone number
**04*old PIN*new PIN*new PIN# Change PIN
**05*old PUK*new PIN*new PIN# Unlock blocked PIN with PUK
**042*old PIN2*new PIN2*new PIN2# Change PIN2
**052*old PUK2*new PIN2*new PIN2# Unlock blocked PIN2 with PUK2
*31#<phone number> Your own phone number is transmitted when you call, <phone number> must be replaced by the dialing number
#31#<Number> Own number is not transmitted when calling
*30# Activate caller ID for incoming calls (CLIP on)
#30# Switch off call number display for incoming calls (CLIP off)
*43# Call waiting on
#43# Call waiting off
**21*<number># Activate call diversion for calls to <number>
##21# Deactivate call forwarding automatically
*#21# Call forwarding status query for calls
*21# Activate call diversion automatically
**62*<number># Activate call diversion if not available on specified <number>
##62# Switch off call diversion if unavailable
*62# Switch on call diversion if unavailable
*#62# Status query of call forwarding when unavailable
**61*<number># Activate call diversion after the 5th ring to the specified number
**61*<number>*<time># Switch on call forwarding to the specified number after the specified time
##61# Deactivate call forwarding after a certain time (after ringing 5 times)
*61# Activate call diversion after a certain time
*#61# Call forwarding status query
**67*<Number># Switch on call forwarding to the specified number if the line is busy
##67# Switch off call forwarding when busy
*67# Switch on call forwarding when busy
*#67# Status query of call forwarding when busy
##002# Automatically switch off all call forwarding
*002# Activate all call forwarding automatically
##004# Deactivate all conditional call forwarding (busy, after 5 rings, unavailability)
*004# Enable all conditional call forwarding

Codes by device

Here are some codes that can be used on Samsung smartphones:
*#0*# comprehensive test menu
*#1111# software version
*#1234# firmware version
*#2222# hardware version
*#0228# Battery status and temperature
*#8999*8376263# Details about camera, product code, etc.
#*5376# delete all SMS
*#9090# Service mode UART/USB (service diagnosis configuration)
*#0808# USB settings
*#34971539# Check and view camera firmware
These work ideally with Huawei smartphones:
*#*#0000#*#* View model number, hardware version and IMEI number
*#*#6130#*#* Test menu (usage statistics, phone information)
*#*#2846579#*#* Service menu (e.g. manual upgrades and downgrades)
*#*#1357946#*#* Product code and serial number
Try these codes if you have an iPhone:
*3001#12345#* Field test mode
*#5005*7672# Show SMSC number
*#746025625# SIM Clock Stop (Power is only consumed when you actually use the SIM card)
*3370# Activate EFR mode (Enhanced Full Rate), improves voice quality during calls, battery power decreases
#3370# Disable EFR mode
*4720# Activate HFR mode (Half Full Rate), reduces voice quality, battery power increases
#4720# Disable HFR mode
*#5005*86# Show mailbox settings
*646# Query current call volume

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Lifestyle

8 Clever Tips for Buying a Cell Phone

There are many offers for buying mobile phones on the Internet and in retail stores. But which offer is the best for me and my needs? The following tips will show you what to look out for when buying a mobile phone. Because a large number of smartphones on the market makes the decision difficult.

Be careful when buying a cell phone

When the old cell phone is slowly giving up the ghost or the camera quality leaves something to be desired, it’s time to buy a new cell phone. Nowadays, new smartphone models are constantly coming onto the market, each promising better design and functionality. But what is actually important when buying a mobile phone? You can use the following questions and criteria to determine how you decide on the right mobile phone:

1) buy a cell phone with or without a contract

You can buy cell phones with or without a contract online or in retail stores. And both have advantages and disadvantages that you should take to heart when making your decision. In general, never decide too quickly when buying a mobile phone and compare your options.

2) Buy a new or used cell phone?

The novelty of the device can also be a decision criterion when buying a mobile phone. Because now you can get cell phones not only new but also used in good quality. Because you get electronic devices refurbished, which is a very sustainable way of buying a cell phone. This means that devices that have already been used have been renewed. You can get a real bargain here.

3) What kind of smartphone do I need?

For most people, a regular smartphone is a right choice. But there are other types of cell phones that you might consider. Therefore, you should first think about what you will use your cell phone for the most or if it is a gift for your grandparents. Consequently, you can distinguish between the following types of cell phones: touch screen cell phones, cell phones, especially for seniors, cell phones suitable for outdoor use, or dual SIM cell phones.

4) Display size and resolution

Now we come to further selection criteria. Display size and resolution play an important role here. The display size is a matter of individual taste. Many like a large display that still fits well in a jacket or pants pocket (approx. 5.5 inches or larger). However, the resolution should not be skimped on. The more pixels, the better the image quality. In addition, note tips for protecting your cell phone so that the display stays intact for a long time.

5) Storage space is crucial when buying a mobile phone

Large memory is also an advantage. Because many use their mobile phones to take photos, listen to music or watch films. Installing apps also costs you storage space. So if you want to use your cell phone for such things, make sure you buy a cell phone with at least 8 gigabytes of memory. It is better to have more or an additional card slot where you can accommodate another memory card.

6) The right choice of operating system

When buying a mobile phone, the operating system can play a decisive role. Because when you buy a smartphone, you also decide on an operating system. Keep in mind that a subsequent system change is difficult. The common operating systems are Android and iOS. The former is found on most devices. The operating system of your other electronic devices can also be decisive. Because that can simplify a joint synchronization. Also, note how you can solve computer problems on your own.

7) Pay attention to the quality of the camera when buying a mobile phone

Camera quality can vary significantly between models. Therefore, find out beforehand about the quality of these on various comparison sites on the Internet and do not just compare prices. Especially in this day and age, cell phones are replacing the usual camera for many people.

8) Mobile phone without a Schufa test

If you want to buy a cell phone despite a Schufa entry and Schufa problems, you have to look for providers who make this possible. The problem with a Schufa entry is unpleasant. You didn’t pay your cell phone bill in the past and now no cell phone provider wants to give you a new cell phone contract. Fortunately, the competition among mobile phone providers is so great that there are also mobile phone tariffs without a Schufa check, all you have to do is search. Or try to remove your negative Schufa entry.

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Lifestyle

8 Tips for Protecting Cell Phones and Smartphones

An overview of tips and ideas for protecting your smartphone. Cell phone protection is an important yet problematic issue for every cell phone user. Here you will find suggestions for protecting your cell phone and restoring data.

For most people, mobile phones or smartphones are simply a matter of course in everyday life. It should always be ready to hand and immediately usable. We have collected tips and tricks for you so that you can optimally protect your smartphone from damage, such as scratches and viruses. We’ll also show you how to back up and restore your data.

The special valuable needs to be properly protected

Smartphones differ in function, design, and also from the price of the cell phone. Precisely because a mobile phone is already of significant value, many are keen to protect it from damage. How quickly does your cell phone fall on the hard floor or do you hit something with it? Many would also like to avoid the unsightly scratches on the display alone. If you want to treat your cell phone properly, you should consider the following, for example:

1) Tempered glass film against scratches and cracks

The display is very important and very delicate, so you should handle it very carefully to avoid damage. A tempered glass film is, therefore, a good choice to protect against scratches and other blemishes, as well as cracks. Tempered glass films are available for every smartphone. They do not interfere with the use of your cell phone and are therefore practical protection for your display.

2) Covers and foils to protect against damage

Damage such as cracks and scratches can not only occur on the display, which is why you should also protect the back of your smartphone. You can avoid damage with the right mobile phone cases. If it then happens that your mobile phone falls, the back is protected and therefore no damage and further costs can arise. Protective covers for your mobile phone are available in different colors and variations. Also, note how you can use key covers to better tell your keys apart.

3) Popsocket for better grip

A pop socket gives you a better grip on your phone. Popsockets are also available in many different shapes, colors, and variations, so you have a free choice. You can also fold up your Popsocket when you don’t need it or want to put your phone away. You can also use them for other purposes, for example, if you want to set up your smartphone.

4) Back up data regularly

It is very important to back up data regularly. Your cell phone can break at any time, even without external impairments. Everyone does not want to lose their data after a sudden cell phone failure. Contacts in particular play an important role here. You can secure this with the help of a Google account, for example. Certain apps also allow this. With Apple devices, this is easier. Here you can simply save all your data in the cloud.

5) Recover phone data

If your phone has been stolen or has given up the ghost, you can now get your contacts back using your Google account on your new smartphone. If you have sent your cell phone for repair and they have to do a hard reset and thus reset all data, the apps would also be a solution to recover the data. With an Apple device, you can now simply log into your cloud and have all the data there. Here is a complete cell phone data recovery checklist.

6) Protection against viruses

In addition to protecting the smartphone with a protective cover or bulletproof glass, you should also be careful not to get any viruses on your cell phone. There are various free apps that will help you with this protection. Good cell phone antivirus will secure and give you warnings. So you should definitely get a virus scanner to protect your cell phone optimally.

7) Avoid heat and sun as much as possible

Temperatures in the vehicle quickly rise to over 50 degrees. You should therefore always protect your mobile phone, smartphone, and tablet from direct sunlight. For example, you can leave your cell phone or smartphone in your pocket on the beach or at the outdoor pool, or at least cover it with a towel. The mobile phone should not be left in the car for long if it is very warm outside.

8) Watch out for your cell phone

For the best security, you should not drop your smartphone and be careful. You should also always keep an eye on your cell phone so that it doesn’t fall into the wrong hands or you don’t find it again. You should also be careful not to put your cell phone in your jacket or trouser pocket with a key or other hard, sharp, and pointed objects, otherwise cracks and scratches can appear on the unprotected display.

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