The newly bought 5C can t be charged, and it can t be turned on, what s going on

1. Charger problem.

You should take a look at the power adapter you are using. Although the voltage of the mobile phone charging head is 5V, there is a big difference in the current size.

At present, the standard charging current of most mobile phones on the market is more than 1A, and the standard charging current of tablets is more than 2AIf you put the iPhone

Connected to the old charging head of 500ma, it is not surprising that the charging is slow. Especially in this case, you have to charge your phone at the same time.

In other words, not only may it not be charged, but it will be charged less and less.

2. Mobile phone problems.

There are many kinds of battery failures, and there are two types of battery failures: damaged cells or damaged control circuits.

Workaround:1Change back to the original, or find a charger with a higher current and try again, and I'm sure everything will be back up.

2.Regarding cell damage, the problem is mainly focused on inferior cells. It is very common to think that the iPhone they are buying should be no problem with the quality, but some profiteers usually change the original battery before selling the phone, and it will not be charged after a period of time.

No surprise. Some people report that their mobile phones are full as soon as they are charged, and they run out of power after two minutes, which is a typical meter of short circuit inside the cell.

Appear. If you encounter this kind of problem, it is advisable not to use this phone until the battery is replaced, as it already has a potential safety.

It's all risky. 3.The end of the battery cell life will also lead to the occurrence of the phenomenon of not being charged, and the life of the inferior battery cell will be consumed faster if your mobile phone.

If you don't use it for two months, the battery will not be durable, and it will be a copycat battery.

4.In another case, the cell itself is fine, but the control circuit is wrong. Some phones charge no matter how long they are charged.

It always shows 2%, but it takes a day to drop to 1%, which means that the battery cell itself is performing normally, and it is just a circuit used to measure the battery power.

Something went wrong. In addition to these common problems, there are also some strange problems, such as phone interface failures, Android system logs.

The battery information is inconsistent with the actual situation of the battery, and the battery is in poor contact.

With invoices, warranty cards, mobile phones, and chargers, go to the after-sales service to check and see if it is the best problem.

Thank you for the trouble to adopt!

Try changing the charger and see if the charger is broken.

Try changing the charger and see if the charger is broken.

If your phone won't charge, we recommend you try it as follows:

1.Use the original charger to connect to the home power source for charging.

2.Replace the power outlet, try or change a data cable to connect to the charger for charging.

For phones with removable batteries, you can also try:

1) It is recommended to turn off the battery and remove it, and use a cotton swab to clean the battery contacts and the contact points where the phone connects to the battery. Reinstall the battery again.

charging attempts.

2) If possible, replace the battery or use the cradle to charge it.

3.If the phone can be turned on normally, it is recommended to back up the data in the phone (such as contacts, multiple files, etc.) and restore the phone.

Factory settings. If the problem persists according to the above methods, please bring the purchase invoice, repair card and machine to the Samsung service center for inspection.

The solution to Samsung phone won't turn on:

1 Before you begin, check if your current phone's battery is still charged. If the battery is completely depleted, it will also lead.

It can't be turned on. So when you can't turn it on, please plug your phone into the power charger first, and then try to turn it on.

2 If you are sure that the battery is charged, but it still can't be turned on, it should be that the mobile phone battery is not in good contact with the mobile phone.

First, please disassemble the back cover of the phone and remove the battery.

4 Next, please use the prepared knife to scrape the metal piece where the battery is in contact with the phone, which is mainly used to remove the gold.

The oxide layer on the genus allows the battery to be in better contact with the motherboard of the mobile phone.

5 Similarly, the same square can be used to treat the oxide layer for the contacts on the mobile phone, so that it can be in contact with the battery more.

Good. 6 In addition, some friends may also have such a problem, that is, sometimes throwing the mobile phone on the table, it will also cause the mobile phone to automatically reweight.

Open. If there is still such a situation, you can add a piece of paper to it when you put on the battery.

7 When it is done, we put the battery back into the mobile phone and press the power button to turn it on. If nothing else, it should be.

It can be turned on normally.

We recommend that you perform the following steps:

1. Charge with wire for a period of time and try to turn it on.

2. 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.

3. If you can enter the boot interface, but your phone cannot enter the home page, please restart your phone to try. The operation steps are as follows: Press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device.

Note: Some models require you to press and hold the power button for 8-10 seconds to restart the phone).

If it still can't be turned on normally, there may be a problem with the system program or hardware, and it is recommended to send the phone to the nearest service center for testing.

It is recommended that you use the following methods to check the cause of ** before resolving it:

Insufficient voltage: It is recommended to change the socket, or adjust the screen brightness of the phone to the darkest, turn on the airplane mode, and then plug the charger back in.

If the charger or cable is not original: Re-order the office to replace it with the original mobile phone cable and the original charger and recharge.

Check whether the room temperature is too low: Apple has set up a low temperature protection for the iPhone battery, and the phone will not be able to charge when the temperature is too low and there are limb cavities, so as to prevent the deposition phenomenon in the battery, resulting in a short circuit inside the battery.

The charging head has been used for a long time or the interface is dirty: change the charging head. Take a thin piece of metallographic sandpaper and cut it out to a suitable size, fold it in half a few times, and gently rub it in the interface a few times.

Possible causes and solutions for not charging:

1.Charging equipment. For example, if the data cable or charging head is abnormal, replace the test separately.

2.Battery failure. For example, loose, deformed, etc., replace the battery.

3.Software glitches. Generally, flashing can be solved.

4.Hardware failure. For example, the charging interface is in poor contact, etc., and it will be sent for repair.

5.Other. For example, too much software runs in the background, resulting in the input being less than the output, resulting in the phenomenon of not charging.

6.Running out of power, battery protection. Activation method: Unplug the data cable of the mobile phone after charging for 10 seconds with direct charging, charge it for another 5 seconds, and charge it after unplugging (generally suitable for batteries that have been placed for a long time).

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

4. The system clock and reset of the mobile phone are abnormal: you can use the dual total oscilloscope to detect the CPU power supply of the mobile phone to check whether the waveform in the reset is correct.

5. Problems with logic circuits: that is, faults in the circuit version of mobile phones, which can generally be solved by repair welding.

6. Software conflict: The installed software does not match the system of the mobile phone, which may also cause the mobile phone to fail to boot, you can connect the mobile phone to the computer to delete the program.

7. If it is a copycat mobile phone, then I estimate that it can't be turned on because the chip inside is burned, or some of the small parts inside are loose, but this situation will only appear if you drop it, the chip burns may be because you charge it for too long, burn the chip, if the battery has electricity, that is these aspects, if it is a brand-name mobile phone, such as Nokia, Motorola. These situations are rare, unless it is artificial, if it is a brand-name smartphone, and it is not used improperly, it is a software problem, it may be a system crash, or because of the mobile phone poisoning caused by software damage, generally this can only go to the maintenance office, however, I think the biggest possibility is caused by static electricity, it is recommended that you do not open the blind repair, or go to the maintenance office!