What to do before buying and selling old phones

There are many people who like to use new model devices all the time. Again, some people do not buy a new model of the device immediately, but after a while, they take a second hand at a slightly lower price. It also saves money and fulfills the desire to use advanced technology. And that's why buying, selling old, used, or second-hand products is commonplace around the world. That's why you will see different marketplaces.

Now if you want to sell your used mobile phone, or buy his used phone from someone else, there are some important things to keep in mind. Otherwise, you may face losses. This post is for you so that you don't sell used phones or buy second-hand phones.

Things to do before selling old or used phones

Nowadays, buying a new smartphone by changing the smartphone after a few days has become a trend. In the case of the middle class, it is very important to sell the old phone at a good price before buying a new one. But you must do some work before selling the old phone. By doing this, you will not have the possibility of getting any personal information.

1. Remove the SIM card

The first thing to do before getting the old phone ready for sale is to unlock your own SIM card from your smartphone. Because the SIM card is very private and you may want to use this SIM card in your new phone. Moreover, many of your important contacts may be in this SIM. So keep the SIM card open with a SIM ejection tool.

2. Open the memory card

Many people do not need to use a memory card as there is a lot of onboard storage in today's smartphones. But if you are a memory card user, remember to keep it open. However, before opening the memory card, you must turn off the phone or unmount from the storage option. Otherwise, your valuable data may be corrupted.

3. Factory reset the phone and erase it completely

Now your job is to completely erase the phone and bring all its settings as they were in the factory. But before that, back up all the data of your phone to your memory card or PC.

Also, check to see if the latest status of the things that are synced to your cloud account has been synced to your Google or Apple account (for example). Reset the phone only if everything is OK. The battery of the phone should be kept adequate while resetting. If you want you can connect the charger.

4. Clean the phone

Now your job will be to clean the exterior of the phone and attract buyers to ensure a good price for the phone. You may not have anything to do with permanent scratches or dents but you can remove the dust and fingerprints of the phone if you want. In this case, dry soft cloth is enough. However, if you want, you can add a little glass of cleaning liquid.

5. Re-box

If you use the phone with care, it can be said for sure that you have taken care of your phone box too. If so, put the phone back in the box. If you have a charger and other accessories with the phone, bring them with you. This will make it easier to find buyers and you will also get a better price.

Things to keep in mind before buying a second-hand phone

Just as a second-hand smartphone can afford to use a good phone at a lower cost, so too are the instances of fraud. So not buying a second-hand smartphone is not something you don't notice for cheating. And today's post is about them.

1. Who are you buying from?

This is the most important step for cheating. If you buy the smartphone from someone you know in real life, you can be very safe. In that case, if you have any problem after buying, you also get a chance to talk about it.

But the problem is with online shopping. In that case, if it is an expensive smartphone, you should talk to the seller directly and do some basic research about it. In case of transaction, you can have an intermediary if you want.

2. Document verification

Nowadays, the market for counterfeit and stolen smartphones has skyrocketed. Someone might even trick you into stealing a smartphone. In that case, you may face harassment later. So you should buy a smartphone with a box and match the IMEI number of the box with the phone. You can also be more reliant if you get a receipt from the store where the seller bought the smartphone.



Whether the smartphone has a warranty period or not, if you have a warranty in Bangladesh, you will also get details from the seller. And think of the warranty card. If possible, collect photocopies and photos of the seller's National ID card.

3. Software check

This is a very important step. You can detect hardware errors from the outside, but it is difficult to detect any software limitations. For example, in the case of the iPhone, you will see whether iCloud is locked or not. In the case of Android, if the set is rooted, find out if you will get a warranty.

However, there is no problem in buying a rooted smartphone. But if you want a warranty, you will see if it is rooted. Ask for the required passwords from the seller. It is best to buy a phone with a factory reset.

4. Hardware test

Although it often looks good from the outside, various sensors of the smartphone such as camera, Bluetooth, WiFi, radio, etc. may not work due to shock or fall. So these should be checked. You will find many apps in the Play Store called Hardware Test to check.

Be sure to test different ports such as USB, headphone jack, etc. Pay the most attention to the battery. Almost all smartphones have non-removable batteries. So if the battery is bad you will have a hard time reading. If possible, verify the battery status of the smartphone from the approximate battery usage data with different apps.

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After all, if you have little idea about these things, you should take someone you know with you. Then the chances of cheating will be less.