trade in the old for the new
If you like a brand, you'd better consult a specialty store to see if there are any trade-in activities. If there is such an activity, then this activity is the most cost-effective for you.
used market
If you think the model of your mobile phone is still very new, you can choose to buy it in the second-hand market. The bid is generally not very low, but it is not much higher, but you can use your golden words to get a slightly better price for your mobile phone.
Sell it online
Now online, Taobao, 58 and other platforms can release some of their own second-hand goods for sale. Mobile phones are also very popular. Take some nice photos, then write down the model information clearly, and then you can wait for the arrival of the buyer.
leak
If you really want to get a new mobile phone, but you don't need so many things, you can give it to your family or your neighbors. It is estimated that it is more valuable to give it to those in need. As the saying goes: give a rose, the hand has a lingering fragrance!
Buy an old man-machine
Replace your mobile phone with an ordinary old-age phone and give it to your parents or the elderly. The kind of machine suitable for the elderly, the old man-machine is generally cheaper, not expensive. You have a new mobile phone, and so do the old people. Isn't it killing two birds with one stone?
Disassembly and replacement
If you have the technical ability to assemble a mobile phone, you may configure a brand-new set like a computer, but the mobile phone is too small and not as convenient as a computer. But if you know some parts, you can still change them yourself.