Samsung s logo keeps flashing and won t turn on

Dear Samsung users, according to the situation you described, you can try the following:1

Charge with a cable charge for a while and try to turn it on, or replace a phone battery of the same model. 2.Take out the SIM card and SD card at the same time and try to power on again.

3.When you see the "Samsung" logo icon when you turn it back on, press and hold the [Menu Key] (Left Touch Sensitive Button) until the word "Safe Mode" appears in the lower left corner of the screen, then let go, back up data (e.g., contacts, text messages, **, etc.), and restore factory settings4

If you can't enter the safe mode or the problem persists after operation, it is recommended that you bring the three-pack certificate of your mobile phone and send your mobile phone to the nearest Samsung service center for testing and repair.

Samsung knows that we will provide you with high-quality solutions and answer your questions attentively, and hope to get your satisfactory evaluation.

Reading guide:Among Android phone users,Occasionally, you will encounter such a situation,When you turn it on,It can already be turned on,But the screen shows a Samsung English icon,The boot icon keeps flashing and can't be turned on。 So what's going on? How to solve it?

The reason for this phenomenon

1. Flashing and rooting is one of the common reasons. Since Samsung mobile phone is an open Android system mobile phone, many owners like to flash, root is the so-called access to the mobile phone, of course, there will be many people in this process, there will be many people who succeed, there will also be people who fail or some processes are not careful, resulting in this result.

2. Accidentally deleting some system files is also one of the reasons for this phenomenon. When some users get the highest permission of the mobile phone, for some seemingly redundant'Things always want to be deleted, want to reduce the burden on the phone, but not everything can be deleted, and not what you think is redundant can be deleted.

3. The system itself is faulty or caused by viruses. There are also many problems with the mobile phone itself, because each mobile phone has its own problems, some of which are more obvious, and some owners have opened programs that conflict with the system or files with viruses, which will also lead to this phenomenon.

How can this phenomenon be solved?

Powered on and off multiple times. Although some friends can't turn on the phone, some can, as long as you try a few more times to get back to normal. But remind everyone to pay attention to the need to kill the virus after booting, and restore the phone to the initial state, this is an effective method, can generally be solved, and even if it is not successful, it will not cause harm to the phone.

Swipe your phone. Wire brushing is one of the common ways to rescue your phone. You can choose to flash Recovery or Brush Sakura into a new Regret ROM, sometimes you can save the phone by just recovering after double clearing, and sometimes you need to flash a new ROM, just like reinstalling the computer system.

Through the above steps, it should be possible to solve the problem that the icon of the Samsung phone has been flashing when it is turned on, if it can't be solved, it is recommended to take it to the Samsung store for warranty or repair, and check whether there are other hardware problems.

We recommend that you perform the following steps:

Step 1: Please press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device; If it is a mobile phone with a removable battery, please press and hold the power button for 8-10 seconds to restart the machine, if it does not work, please turn off the battery and reinsert it.

Step 2: Factory reset operation. Method: Settings - General Management - Reset - Factory Reset.

In standard mode, tap Settings.

2.Swipe up on the screen and tap General Management.

3.Click Reset.

4.Click Factory reset.

5.Click Reset.

6.Click Delete all.

If the mobile phone cannot enter the system page after booting up, and the screen is stuck or frozen, it is recommended to:

1.Please press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device; If it is a mobile phone with a removable battery, please press and hold the power button for 8-10 seconds to restart the machine, if it does not work, please turn off the battery and reinsert it.

2.If the problem persists after restarting the machine, it is recommended that you bring the purchase receipt, repair card, and machine to the Samsung service center for inspection.

Note: If the machine can be turned on normally after following step 1, it is recommended that you optimize your phone as follows:

1.Settings - About Phone - System Update - Update, check if there is a system update push, upgrade the phone to the latest version.

1 In the shutdown state, press and hold the volume plus button and the shutdown button, and let go when the boot screen appears, and then you can enter recovery. Go to Recovery >Chinese >> Clear Data >> Empty all data).

2 Connect the charger to charge for more than half an hour.

If you still can't, it is recommended to go to the branch engineer for inspection and maintenance.

Reasons and solutions for mobile phone not turning on:

1. The boot line is not normal Look: Use an external power supply to supply power to the mobile phone, use the electric meter to detect whether there is a change in the indicator, 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, and 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 on 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 not turn on, you can connect the mobile phone to the computer to delete the program.

You can try to press the power button and the down volume button at the same time for more than seven seconds, and my phone is powered on by pressing these two buttons.