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Sony Xperia Z2 Not Turning On: Red LED, Flashes 3 Times, Battery Display, Non-responsive to PC

Gucio987 4854 11
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  • #1 16722356
    Gucio987
    Level 1  
    Hello, I have a problem with xperia z2, it does not turn on, when the phone is connected, the red LED lights up, when I try to switch it on, it flashes 3 times, after disconnecting the battery and connecting it to the charger, the display shows the picture of the battery, and so, when the battery is connected and charging there is nothing, Unfortunately, the phone does not respond when I connect it to the computer, is anything beyond the motherboard possible?
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  • #2 16722492
    nutergsm
    Moderator of GSM  
    Check battery voltage.
  • #3 16727007
    KooGaid
    Level 15  
    I had similar in Xperia Z and Z1, always the same diagnosis, damaged motherboard.
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  • #4 16727116
    lufex
    Level 14  
    Was the phone opened?
  • #5 16727287
    KooGaid
    Level 15  
    And what does it have in common whether it was opened with what everyone who knows a little about the subject knows, i.e. a common memory problem and sudden death in the Z series?
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  • #6 16727596
    kamil1290
    Level 10  
    Check the batteries, maybe it disconnected, as something shows on the screen it is good to know. This is not necessarily the motherboard's fault, although in all these Z models, such cases are common
  • #7 16732681
    KooGaid
    Level 15  
    As the LED flashes 3 times when trying to turn on, the diagnosis is simple, the board is damaged. What is the reaction when you connect the phone to the computer with vol- pressed?
  • #8 16745081
    karol1988st
    Level 16  
    Charge the battery externally or put another one to the test.
  • #9 16748138
    mahamalak
    Level 12  
    Do you have the option of connecting a laboratory power supply?
  • #10 16809728
    daniel23olsztyn
    Level 11  
    When you install the fastboot driver, connect the phone with the vol + button pressed, the blue diode should light up, it will be a chance
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  • #11 16810519
    KRY5PIN
    Level 37  
    College above, read the first two posts carefully !!! Gucio wrote that he detached the battery, and you ask if the phone was opened, and whether the battery sometimes disconnected ?? It is assumed in advance that the CD will fall down.
    nutergsm wrote what needs to be done. You have to take the meter in your paw and measure the voltage. In the Z series it is standard, if the battery is discharged it always blinks red 3 times. And that it will unplug the battery, connect the charger and show the empty battery logo is a norm.
  • #12 16840057
    lufex
    Level 14  
    Hello, I asked if it was opened, because often the case is torn elements at the LCD connectors, batteries, etc., when removing the tapes.
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Topic summary

The discussion revolves around a Sony Xperia Z2 that fails to power on, indicated by a red LED that flashes three times. Users suggest checking the battery voltage and connections, as well as the possibility of a damaged motherboard, which is a common issue in the Xperia Z series. Recommendations include charging the battery externally, testing with a different battery, and using a laboratory power supply. Some users emphasize the importance of checking for physical damage to connectors if the device has been opened. The flashing LED and battery logo display are noted as typical symptoms of a discharged battery or motherboard failure.
Summary generated by the language model.
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