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Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues

dodger2018 34236 18
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  • #1 17749790
    dodger2018
    Level 5  
    Hello,

    I have a PHILIPS sonic toothbrush for repair, which has stopped working. After unscrewing, the first battery that I soldered se us14500vr2 680 mAh, the measured voltage was zero.
    For tests with the TP4056 chip, I charged it to a voltage of about 4.1V, then connected back to the main plate of the brush, it activated it for nearly 3 seconds of vibration, and then the power LEDs were still on for 5-10 seconds. By pressing the button it made no difference.
    Will just replacing the battery help? I can still see some sediment near the coil.

    I am asking for advice.
    Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51195318_1...2560_n.jpg Download(341.58 kB) Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51699172_2...1232_n.jpg Download(64.47 kB) Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51410349_3...4576_n.jpg Download(57.24 kB) Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51237864_2...5520_n.jpg Download(258.83 kB) Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51293369_9...1792_n.jpg Download(59.48 kB) Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51064564_3...8448_n.jpg Download(247.21 kB) Philips HX6511/50 Sonic Toothbrush Repair: Battery Replacement & Coil Sediment Issues51168284_2...6768_n.jpg Download(149.32 kB)
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  • #2 17749822
    Witold5
    Level 32  
    You are looking for problems. Replace the battery, then you will know if it is enough, and it will be enough.
  • #3 17763532
    dodger2018
    Level 5  
    The battery has been replaced but the problem is still the same
  • #4 17763605
    E8600
    Level 41  
    It was to be expected. In the first photo you have posted you can clearly see the Rx, TX, etc. service fields. After that, it can be concluded that any chip (probably Q1) is programmable. It probably has a protection for the number of inclusions or it locks when the battery is excessively discharged / used.
    This is a kind of protection for the manufacturer not to repair, but to buy new ones.
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  • #5 17763625
    dodger2018
    Level 5  
    What can you do then?
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  • #6 17763672
    E8600
    Level 41  
    Maybe a colleague try to unsolder the JP1 service jumper. Here you have instructions in which order to replace the battery. However, I'm afraid that now it may be too late and the memory dump may be erased. Still, it's worth a try.



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  • #7 17763821
    dodger2018
    Level 5  
    It had no effect. Is the case pending or something else that can be done?
  • #8 17763887
    E8600
    Level 41  
    Have you desoldered and soldered? The toothbrush shows any signs of life?
    Probably to fix it you would have to look for the batch and try to program it again.
  • #9 17763948
    klamocik
    Level 36  
    And so we moved from the teeth to the electronics, wash the entire plate very thoroughly with an ordinary toothbrush and dishwashing liquid. Of course, diluted later with a few blows, there would be nothing left and drying on the radiator for 12 hours. I do not give a guarantee, but I know that when washing, something will always pass.
    :arrow: I have corrected TONI_2003
  • #10 17765643
    dodger2018
    Level 5  
    E8600 wrote:
    Have you desoldered and soldered? The toothbrush shows any signs of life?
    Probably to fix it you would have to look for the batch and try to program it again.


    I did according to the video. However, now only the green LED is on. No vibration.
  • #11 17765684
    E8600
    Level 41  
    dodger2018 wrote:
    However, now only the green LED is on. No vibration.

    Apparently, during the first replacement of the battery itself without unsoldering the jumper, the program stored in the system was deleted / damaged. Without a programmer and a batch, you won't do anything about it now. Such jumpers are a protection, sometimes they need to be soldered before they can be replaced, another time they need to be desoldered.
    If you have a programmer, the batch can be obtained on Russian websites.
  • #12 17766178
    misiek1111
    Level 36  
    Yes for posterity. On the HX6932, the battery can be replaced normally.
    As for the brush itself, it is a German dud with a deliberate design that makes the product anti-aging, although the functionality itself can be assessed as one of the best on the market.

    If there is sediment and rust, it means that the brush was not tight. Wash the plate with isopropanol, then check the paths with a meter for continuity. Some can be eaten by the moisture.
  • #13 18100000
    iza_k
    Level 2  
    Hi,

    I also have a brush, which of course broke after the warranty expired: /
    I already thought the toothbrush should be thrown away, but here I can see that it may be repairable :)
    Can you recommend someone to take care of it, preferably from Warsaw?

    greetings
  • #14 18100256
    Piotr2608

    Level 41  
    iza_k wrote:
    I also have a brush, which of course broke after the warranty expired: /

    It did not broke after the warranty expired only it ran out or exhausted, the battery charge amount limit. These france don't like to be brought to death. As we can already see the drastic decrease in working time, we should already replace the battery. Second, such brushes are only charged when the charge level is close to zero. My Philips has been working on the original battery for 4 years, if not 5 years. The charger is disconnected from the socket.
  • #15 18100266
    iza_k
    Level 2  
    Thanks for the answer. Can such a battery be replaced then? They say on the website that there are no spare parts and therefore the brush can be thrown away (mine was charged only when it started to "rain", and I connected the charger to the power supply, only for charging)
  • #16 18100285
    Piotr2608

    Level 41  
    iza_k wrote:
    Can such a battery be replaced then?

    The battery can always be replaced, the question is whether the electronics will allow the battery to be replaced and whether it will not be like in the post by the author of the topic.
  • #17 18111634
    crux
    Level 12  
    Hi,
    As I can see, the problem does not only concern my and my wife's toothbrush. Both brushes bought about 3.5 years ago. The first one broke down after about 14 months, the second one after 22 months. The symptoms are: Cannot be turned on, after prolonged charging, it vibrates regularly for up to 10 minutes without the possibility of turning off (it turns off the vibration again reconnecting to the charger), etc. Sent under warranty, both returned replaced with a new one. One of the brushes, after more than a year, broke again, the symptoms as above. Well, this time I ordered another one from the store with an extended warranty. The product itself is amazing, I did not notice any deterioration of the battery's durability, I charged it myself, I do not know how often, every few weeks, and I use it twice a day.

    greetings
    crux
  • #18 18111723
    misiek1111
    Level 36  
    crux wrote:
    The symptoms are: Cannot be turned on, after long-term charging, it vibrates regularly for up to 10 minutes without being able to turn off (it turns off the vibration when reconnecting to the charger), etc.

    Typical symptoms of flooding electronics:
    misiek1111 wrote:
    Wash the plate with isopropanol, then check the paths with a meter for continuity. Some can be eaten by the moisture.
  • #19 18113343
    crux
    Level 12  
    Ok I will try. Currently, the brush turns on every few minutes and spins for 2 minutes.
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Topic summary

The discussion revolves around the repair of a Philips HX6511/50 sonic toothbrush that has ceased functioning. The initial troubleshooting involved replacing the battery with a US14500VR2 680 mAh, but the issue persisted despite charging attempts. Participants suggested that the problem might be related to a programmable chip (possibly Q1) that could lock out functionality if the battery was excessively discharged. Recommendations included unsoldering a service jumper (JP1) and thoroughly cleaning the circuit board to address sediment and rust issues. However, it was noted that if the program was damaged during the battery replacement, a programmer would be necessary to restore functionality. Users shared experiences of similar issues with their Philips toothbrushes, indicating a potential design flaw leading to premature failures.
Summary generated by the language model.
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