Author Topic: Lenovo S820 USB charge port repair  (Read 1732 times)

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Offline panossTopic starter

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Lenovo S820 USB charge port repair
« on: January 23, 2018, 04:19:01 pm »
I have the above mentioned phone and in it's charge port pcb, the port is missing.
You can see it in the attached images, the first 4 ones.
(the fifth image shows how it should be, I found it on the intenet)

I 'm trying to fix it although it's a cheap part, because it will take 2 months (at least) to come from China.
So, is there some service manual?
I found the schematic, but...it only contains the...schematic ( ::)) NOT the pcb.
So I can't find which part in the schematic corresponds to which part on the pcb.

Maybe the 'Switching Charge' of the schematic is the circuit of charge port pcb?

The phone is "dead". I guess this PCB is the reason why it shows no signs of life.
The battery is new.

Any help is appreciated.
« Last Edit: January 23, 2018, 05:20:12 pm by panoss »
 

Offline zvonex66x

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Re: Lenovo S820 USB charge port repair
« Reply #1 on: January 23, 2018, 09:35:47 pm »
It should working if the battery is full, i'm servising mobiles every day but this is high demage, but not impossible to fix. You can see path for your usb chargeing port and solder it by this.
 

Offline panossTopic starter

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Re: Lenovo S820 USB charge port repair
« Reply #2 on: January 24, 2018, 07:48:24 am »
So you 're saying the phone should boot and work despite the fact that the charge port pcb is damaged, right?
(the battery is charged)
« Last Edit: January 24, 2018, 08:50:06 am by panoss »
 

Offline zvonex66x

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Re: Lenovo S820 USB charge port repair
« Reply #3 on: January 24, 2018, 06:21:44 pm »
So you 're saying the phone should boot and work despite the fact that the charge port pcb is damaged, right?
(the battery is charged)

Yes, there are no reason for not turning on
 

Offline zvonex66x

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Re: Lenovo S820 USB charge port repair
« Reply #4 on: January 24, 2018, 08:20:20 pm »
Are you sure that battery is charged???
 

Offline panossTopic starter

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Re: Lenovo S820 USB charge port repair
« Reply #5 on: January 25, 2018, 07:46:48 am »
Yes I am.
 

Offline zvonex66x

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Re: Lenovo S820 USB charge port repair
« Reply #6 on: January 25, 2018, 04:24:08 pm »
 

Offline panossTopic starter

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Re: Lenovo S820 USB charge port repair
« Reply #7 on: January 26, 2018, 04:53:58 pm »
Therefore, I conclude that the main board has a problem...
 


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