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According to your description, there are many factors that cause the phone to not turn on, such as the battery, the phone's software, and the hardware. We recommend that you try the following:
1. Replace a mobile phone battery of the same model for testing or send the battery to the nearest service center for testing.
2. Take out the battery, clean the metal contacts of the battery and the metal contacts of the mobile phone with an eraser, and then press the power button to try.
3. Take out the SIM card and SD card at the same time, and then press the power button for more than 10 seconds to test whether it can be turned on.
If it still doesn't turn on, there may be a problem with the system program or hardware, so it is recommended that you send your phone to the nearest Samsung service center for testing.
It is recommended that you make an "appointment to visit" repair application on Samsung's official website to enjoy priority repair service.
After the appointment is successful, please bring your machine, invoice and warranty card to the service center where you made the appointment on time.
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In this case, my friend said, either there is a virtual power in the power bank, or the socket of the mobile phone charging, or the other accessories for charging are faulty.
I suggest that my friend go to a mobile phone store near me and find a professional repairer to help deal with it.
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Reasons and solutions for the power bank to charge the mobile phone:
1. Interface problems. In order to adapt to the application of a variety of mobile phones, the mobile power supply is equipped with common mobile phone interfaces. If the mobile phone interface and the power bank interface are not applicable, you should find a wiring.
If the interface is the same, or it cannot be charged, check whether the interface at both ends of the data cable has poor contact, and it is recommended to change the data cable to test.
2. The problem of voltage or current. Because some mobile phones are more special, the voltage is different, so it cannot be charged, the normal lithium battery is the voltage, like the normal mobile phone uses 5V voltage, if you do not do the boost, the general lithium battery is not able to charge the Apple mobile phone.
1) Some devices are different from Apple mode in terms of ID voltage design, so they cannot be directly adapted (with an adapter, that is, a transformer to achieve the purpose of charging);
2) Some of the device's own data cable has line protection, so it cannot be directly adapted (the original data cable can be replaced to achieve the purpose of charging);
3) The current input of some devices is that the battery is protected from excessive current, and the power bank with an output of 1A is used to charge it, and the battery automatically turns off the input, so it cannot be adapted.
The solution is to try a different power bank.
3. Please confirm whether the power bank has stored power, if the power is insufficient, please charge the power bank before using it;
Questions. <>
It shows that there is so much power, but only 25 is flashing when charging the phone, and it can't be charged.
You take a look at the workaround above.
Questions. The power bank is new and has just arrived.
Questions. Generally, how long does it take for a new power bank to be fully charged.
The first charge can be enough for eight to ten hours, and it will be better to use it later, and then it can be charged in about six hours, but there are differences according to the size of the charging cable and the capacity of the power bank.
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The common reason is that the charging cable is not good, or the socket and plug are not in good contact.
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If there is a problem with the data cable, or the contact of the mobile phone charging port is poor, there is no problem with the general data cable, but the mobile phone charging port is dirty.
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The power bank has power, and the power bank charger does not respond to the mobile phone battery.
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Summary. Hello dear <>
1. Try to charge with the original data cable of the mobile phone to eliminate the problem of the cable. 2. If it doesn't work, use the mobile phone charger to charge the mobile phone and rule out the mobile phone problem. If it can be charged, it is a problem with the power bank.
3. Determine that it is a problem with the power bank, fully charge the power bank first and then try. 4. If the mobile power supply is fully charged, and the mobile phone is still not charged, it is a problem with the mobile power supply, it may be that the voltage is too small, or there is no current output, basically the circuit board is broken, and it needs to be sent for after-sales testing.
My power bank has power but can't rush into the phone, but the phone shows charging, what's going on?
Hello dear <>
1. Try to charge with the original data cable of the mobile phone to eliminate the problem of the cable. 2. If it doesn't work, use the mobile phone charger to charge the mobile phone and rule out the mobile phone problem. If it can be charged, it is the Tongtang cover of the mobile power bureau's troublesome source.
3. Determine that it is a problem with the power bank, fully charge the power bank first and then try. 4. If the mobile power supply is fully charged and the mobile phone is still not charged, it is a problem with the mobile power supply, it may be that the voltage is too small, or there is no current output, basically the circuit board is broken, and it needs to be sent for after-sales testing.
Hello dear <>
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<> what is the matter with the power bank having power but not charging.
Hello dear <>
One: Check your slide cavity data cable, try one for another one: if it is not a problem with the cable then 1:
If you can explain that it is a problem with the power bank, the reason may be that the voltage of the power bank is too low, which is lower than the battery voltage of the mobile phone, or the voltage of the mobile phone is too high, which is higher than the voltage of the power bank. It may be that the power bank and the match are so it can't be rushed. The power bank battery is too low.
Swap digging to make the root data judge line. The charger is broken into a broken socket.
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Summary. If the output voltage of the charging head itself is very low, it will also affect the power of charging, and the general power bank chooses 5V charging head.
The charging treasure keeps showing the charging status after charging, and it can't be charged to charge the phone.
If the output voltage of the charging head itself is very low, it will also affect the power of charging, and the general power bank chooses 5V charging head.
It is possible that the capacitor or circuit in the power bank is broken, and in this case, the only way to repair it is to take it to repair. It may be that you have bought a shoddy and inferior power bank, and you can buy regular products, and the quality is guaranteed.
Make sure that the battery of your phone is sufficient, and then connect your phone to a power source to charge it for a period of time before trying to turn it on. You can also press and hold the "Power Button" and "Volume + Button" at the same time to try to enter the recovery mode, select "Clear Data" first, and then select "Restart" after the interface jumps.
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