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[Solved] Xiaomi Redmi Note 3 Not Charging: Discharged to Zero, Unresponsive to Charger & PC Connection

jurek.m 12447 8
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  • #1 17122872
    jurek.m
    Level 9  
    Hello, I have xiaomi redmi note3. At this time the phone is discharged to zero, and it cannot be charged. It started with the fact that it could not be charged during standby, so I turned it off and fully charged. After a while it did not charge in the off state but surprised when it was completely discharged. Unfortunately, after some time, quite unwell does not respond to chargers and computer connections. I also have a question, will the long discharge time affect the batteries before they reach the service center?
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  • #2 17122898
    rafallos5
    Level 12  
    Recently, we had this phone in the workshop, the reason for the lack of charging was a punctured diode (the first VCC element from the socket), but this rectangular socket is also not very durable, so also to check.
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  • #3 17124400
    Marta Przybylska
    Level 10  
    I have the same problem. Does anyone know which diode to choose in the place of the burnt one, where to buy a replacement, or from what model to change?
  • #4 17128581
    rafallos5
    Level 12  
    Marta Przybylska wrote:
    I have the same problem. Does anyone know which diode to choose in the place of the burnt one, where to buy a replacement, or from what model to change?

    I didn't have a problem with it, because I had such a second damaged CD, so I won't help anymore in this topic. Alternatively, replacing the entire plate remains.
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  • #5 17287948
    adam5525
    Level 10  
    Just remove the damaged Zener diode from the loading board or motherboard, it depends which is damaged and after the problem.
    This, of course, has some limitations. After removing the voltage stabilizer, you can only use the original charger or another with a current less than or equal to 2A and 5V.
  • #6 17292320
    Glemark1
    GSM specialist  
    adam5525 wrote:
    Just remove the damaged Zener diode from the loading board or motherboard, it depends which is damaged and after the problem.

    This is not a zener diode but a TVS diode. Without it, the phone will work normally, but in the event of a power surge or surge, not the safety component but the charging system will be damaged.
    adam5525 wrote:
    After removing the voltage stabilizer, you can only use the original charger or another with a current less than or equal to 2A and 5V.

    This is not a stabilizer but a safety element. As for the charger, you can use any good quality because the phone will still draw the current value that the charging system will allow.
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  • #7 17292375
    adam5525
    Level 10  
    Glemark1 wrote:
    This is not a zener diode but a TVS diode

    Transil is undoubtedly a variation of the Zener diode.
    Glemark1 wrote:
    This is not a stabilizer but a safety element.

    and the Zener diode is a stabilizer.
    Glemark1 wrote:
    As for the charger, you can use any good quality because the phone will still draw the current value that the charging system will allow.

    Naturally, after removing the diode, you can use any chargers, some only once, and chargers with the parameters given above even for years.
    The RN3 ZZ diode BZT52 is used to stabilize voltage up to 5V.
  • #8 17292450
    Glemark1
    GSM specialist  
    I have rectified what you wrote above and I am not going to prove my point. I think that someone invented a transil element called it to use this name and not to call the zener diode.
  • #9 17496803
    jurek.m
    Level 9  
    The phone was repaired in the service. The charging module has disengaged. After repair, the Baedzo works well, in total the price of repaired phones did not turn out to be high.
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Topic summary

The Xiaomi Redmi Note 3 is experiencing a charging failure, having discharged completely and becoming unresponsive to both chargers and PC connections. Initial issues included inability to charge while in standby, leading to a complete discharge. Users suggest that a common cause for this problem is a damaged diode on the charging board, specifically a TVS diode, which can be replaced or removed. Some users have successfully repaired their devices by addressing the charging module or replacing the diode with a BZT52 model. Concerns were raised about the impact of prolonged discharge on battery health before reaching a service center.
Summary generated by the language model.
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