Amazfit GTR cannot turn on - Amazfit

Hello everybody!
I have a problem with the Amazfit GTR 47mm(A1902).
After updating the firmware, the clock began to consume 5% of the battery a day.
When the charge level dropped to 17%, i put the device on charge. The device shut off during charging and I could no longer turn it on.
It does not respond to button presses, charging. phone does not find.
I opened the device to check the battery status. 4.2V battery.
I will be grateful to all for your help.

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[Q] Xperia Ray off at 28%?

Hello people, I have a strange problem, I have less than two months with my SE Xperia Ray, and always loaded with original charger , but about two weeks ago or something but the phone whenever it reaches 28% of battery status and jumps to 0% and off. the battery is completely discharged. Sometimes I'd see battery calibrator used but still the same, any suggestions you can give me if they had a case like this? thank you very much
Do calibration! Let your battery became absolute empty and phone will turning off automatically. Then connect the charger (!just charger, do not turn on the phone!). When batery turns full disconnect the charger, eject the battery for 5 minutes, then take it back and connect the charger again. Then it became full enter recovery => advanced => Wipe Battery Stats, then restart your phone and when your home screen appers disconnect the charger. Let your battery became empty to the end (!do not restart or turn off during this period!) then charge as always

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Hi guys, i consider myself an intermediate around the android OS and i have tried most solutions that came to my head with no results.
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[Q] Battery died?

When my phone reaches 85-80% battery my screen starts to flicker and my phone turns off. When turning on i only have 1% battery left.
Battery is only 1 year old. Do i need to buy a new one?
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Rexus1 said:
When my phone reaches 85-80% battery my screen starts to flicker and my phone turns off. When turning on i only have 1% battery left.
Battery is only 1 year old. Do i need to buy a new one?
Or can I fix it?
Click to expand...
Click to collapse
You can calibrate the battery like this before you decide to buy a new one
Fully charge the battery with the phone on and when the phone is fully charged, unplug the charger and turn it off.
When your phone is off, plug it into the charger and let it charge to 100% again. The green LED light will indicate when this is done.
Next unplug the charger, turn on your phone and set the option to ensure that your screen doesn’t turn off, if you have this option. Then reconnect to the charger and wait for it to charge again to 100%.
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From AndroidPit

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PD. I try with other usb cable and other charger dock of my friend.
Yes even I'm facing the same issue. The watch doesn't get charged and was at 0% for many hours. Now there's no display at all, it's totally dead!
The only charging problems I have found is when the contacts, on the back of the watch, are dirty.
Make sure contacts in both watch and cradle are clean. If they are, turn off watch and let it charge for 30min at least before you ty to turn it on. Avoid fully discharging any LiPo battery, it puts stress on it.

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