Common problems and solutions of smart phone SD memory card

Maybe we will all encounter the situation that the SD memory card of smart phone is invalid and can't read the card. Below, I sorted out the common problems and solutions of smart phone SD memory card for you, hoping to help you!

1): The memory card cannot be recognized when it is inserted into the computer. This situation is often caused by the format of the memory card on the computer, but the format is not compatible with the mobile phone.

Solution: put the card back on the phone and reformat it with the format memory card function in the phone.

2): The mobile phone can't open the webpage when it is plugged into the memory card, but it can be unplugged.

Solution: The webpage cannot be opened, or the network is unresponsive, which may be caused by the third-party input method. Switch back to the original input method and the problem will be solved.

3): The mobile phone prompts "Please press OK and pull out the memory card as prompted. You can continue to use it after plugging it in your mobile phone for a while, but it won't be long before you are prompted to pull out the card, and so on. The reason for this situation is that the memory card slot of the mobile phone is loose due to frequent plugging and unplugging of the memory card, resulting in poor contact.

Solution: you can consider going to customer service to repair your mobile phone, and be careful not to use too much force or just use your mobile phone to look at it instead of plugging and unplugging the memory card.

4): The reading and writing speed of MMC card is getting slower and slower, far less than when it was just bought back. The MMC memory card in the mobile phone is the same as that in the computer. After a period of use, disk fragmentation will occur due to frequent deletion and copying, which will affect the reading and writing speed. But the disk format of the hard disk is FAT32 or NTFS, and the MMC card in the mobile phone is FAT 16. Therefore, after the mobile phone is defragmented by the computer disk, there will often be a series of errors, which will be serious when the MMC card is inserted into the mobile phone.

Solution: In fact, we only need to copy the hidden files in the MMC card, format the card and copy the files.

5): The mobile phone suddenly asks for the password of the memory card, otherwise the access is denied. However, it was not set before. Unfortunately, you are probably infected with a mobile phone virus-Kadek Troy. This little wooden horse will be perfectly disguised as instant. SIS broken version software dissemination. It will set a password for your card when you accidentally run it. This password is randomly generated as long as 16 bits, and the crack is almost zero. If you are poisoned, you can only say goodbye to the memory card.

Solution: A: Don't accept applications and short messages sent by strangers, especially by strange Bluetooth. It is best not to download unknown software casually. Scan with antivirus after downloading.

B: Try to download things from trusted websites;

C: Install a professional antivirus software such as LEB(V or 360 or Kingsoft Internet Security) in your mobile phone.

6): 1Gbyte MMC card, copied into a 600MB file, the memory card cannot be safely taken out of the computer. So if you pull it out, the memory card will be damaged after it is put into the mobile phone. If the card is connected to the computer, the computer will not recognize it. A memory card that copies a large amount of data at a time may sometimes be unable to delete the memory card.

Solution: It is recommended to copy in batches separately in the future. If you can't recognize the memory card of your mobile phone and computer, you can do the following:

Answer: on the computer side, the format is FAT 16;

B: format the memory card on the phone.

7): When the mobile phone formats the memory card, the memory card appears in use.

Solution: To restart the phone, try following the following steps: turn it off, reinsert the memory card, and turn it on.

8): Many programs in the mobile phone can't run normally. When the mobile phone is connected to the memory card, it shows that the memory card does not exist and cannot be connected.

Solution: This situation is probably due to the memory card being renamed', resulting in a program error. Just export the registry and replace the name of the memory card in the computer notebook in batches.

9): The memory card cannot be used after formatting.

Solution: First, check whether the format used is FAT32 format. If the format is FAT 16, it must be reformatted and selected as FAT32 format. If the problem still exists, you can try to repair it with disk tools in your computer system.

10): The multimedia photos and video files stored in the memory card suddenly disappeared.

Solution: Connect the memory card to the computer with a card reader, determine its drive letter, open the start menu of the computer, select Run, enter CMD, and enter VCHKDSKH: the drive letter where the computer is located under the MS-DOS command.

Recommendation of large capacity memory card

Samsung128gb Evo plus microsd JD.COM Mall: 339 yuan.

Samsung recently updated several best-selling memory cards. The new Samsung memory card product line includes PRO+, PRO, EVO+ and EVO. PRO+ and PRO can provide enhanced speed and data storage capacity, while EVO+ and EVO products are excellent, perfect, stable and reliable in daily performance. Today, Samsung EVO Plus Micro SD memory card (reading speed 100Mb/s) is recommended. At present, the price of 128GB in JD.COM is 339 yuan.

Samsung brand storage is equipped with Samsung NAND flash memory for Samsung EVO Plus Micro SD memory card, which adopts advanced technology and has faster storage speed. Samsung EVO Plus Micro SD memory card has a maximum reading speed of 100M/S and a writing speed of 90 m/s, supports the mainstream UHS-IU3 speed level, transfers files and takes photos faster, and can completely capture actions. It is also an ideal choice for recording and playing smooth 4K UHD video. It provides great convenience for every consumer to store high-load and high-resolution photos, videos and files. .

128GB Toshiba M302 micro SD memory card is priced at 309 yuan in JD.COM.

Toshiba M302 micro SD memory card was released recently. The card has super high reading and writing speed and supports 4K video shooting. These have greatly met the needs of users. Toshiba M302 micro SD memory card is carefully built by Toshiba's high-end technology, and it is a reliable companion for smart phones, digital cameras and outdoor mobile devices.

Toshiba M302 micro SD memory card has a variety of capacities for users to choose from, namely 16GB, 32GB, 64GB and ultra-large capacity 128GB. It allows smart devices to carry more photos, movies, software applications and so on. , easily complete the backup of a large amount of data. The card adopts U3 speed class, and the maximum reading speed can reach 90 MB/s. ..

Sandisk Supreme High-speed Mobile MicroSDHC UHS-I Memory Card Upgrade Edition JD.COM Mall: 279 yuan.

Sandisk ultra-high-speed TF card has received strong attention since its listing. Now the speed of Class 10 specification series is increased again, bringing 100MB/s speed. There is no problem running directly, downloading data and taking pictures. Now the capacity of 128GB is quoted at 279 yuan, so buy it quickly.

The card has high-speed reading and writing performance, which enables mobile devices supporting UHS- 1 speed level to capture more wonderful pictures in continuous shooting mode. Now about one third of the video images will be taken by mobile phones. Using the new Sandisk mobile memory card with UHS- 1 speed level and Class 10 specification, the card can help users shoot high-quality and high-definition videos including 3D videos.

Kingston China Red 128GB TF Card JD.COM Mall: 639 yuan.

Nowadays, the performance of smart phones is getting stronger and stronger, the screen is getting bigger and bigger, the resolution is getting higher and higher, and the camera is getting clearer and clearer. Users who love mobile phone photography, especially HD continuous shooting, 2K video recording and time-lapse photography. , which produces a large amount of data and requires high transmission speed. More and more users find it difficult to capture those beautiful scenes in an instant.

Kingston China Red Extreme Edition micro SD card, first of all, is unambiguous in performance, providing a maximum reading speed of 90MB/s and a writing speed of 80MB/s, which is quite powerful. As we know, the traditional micro SD card generally adopts the Class transmission standard, while Kingston China Red micro SD card has reached the UHS-I U3 standard and is also compatible with the Class 10 standard. Suitable for middle and high-end photographers who like to create videos and photos with their mobile phones.